Omron V78068 RFID READER/WRITER User Manual sec7

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7 - 1

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

This section provides an overview of Modbus/TCP communications and describes the

communications format, communications commands, and communications procedure.

7-1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7-1-1 Modbus/TCP Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7-1-2 Modbus/TCP Function Codes Supported by the V780 . . . . . . . . . . . . . . . . . . 7-2

7-1-3 Communications System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7-2 Message Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7-2-1 Command Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7-2-2 Response Format for Normal Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7-2-3 Response Format for Error Completion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

7-2-4 Read Multiple Resisters Command/Response (FC03) . . . . . . . . . . . . . . . . . . 7-8

7-2-5 Write Multiple Resisters Command/Response (FC16) . . . . . . . . . . . . . . . . . . 7-8

7-2-6 Expanded Command/Response (FC100) . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

7-3 RF Communications Command Options . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7-4 Communications Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

7-4-1 Command Communications Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11

7-4-2 Error Response Reception Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

7-4-3 RF Tag Communications Command Procedure for Single-access

Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

7-4-4 RF Tag Communications Command Procedure for Multiaccess

Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

7-5 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

7-6 V780 Command Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7-6-1 Single-access Communications Commands . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7-6-2 Multiaccess Communications Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32

7-6-3 Modbus Expansion Communications Commands . . . . . . . . . . . . . . . . . . . . 7-41

7-6-4 Reader/Writer Control Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-49

7-6-5 Reader/Writer Setting Commands: Network Settings . . . . . . . . . . . . . . . . . . 7-54

7-6-6 Reader/Writer Setting Commands: Communications Settings . . . . . . . . . . . 7-70

7-6-7 Reader/Writer Setting Commands: Device Settings . . . . . . . . . . . . . . . . . . . 7-98

7-6-8 Maintenance Commands: Device Information . . . . . . . . . . . . . . . . . . . . . . 7-102

7-6-9 Maintenance Commands: Log Information . . . . . . . . . . . . . . . . . . . . . . . . . .7-113

7-6-10 Maintenance Commands: RF Communications Information . . . . . . . . . . . 7-121

Modbus/TCP Communications

7 Modbus/TCP Communications

7 - 2 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-1 Outline

• A V780 Reader/Writer can perform Modbus/TCP-compliant message communications with the host

device (PLC).

• Communications between the host device (PLC) and the V780 Reader/Writer are performed on a cli-

ent-server basis using the TCP/IP protocol. The computer, PLC, or other host device is the client and

the Reader/Writer is the server.

• The message that the host device (PLC) sends to the Reader/Writer is called a command. The mes-

sage that the Reader/Writer returns is called the response.

Additional Information

Modbus/TCP Protocol

The Modbus/TCP protocol is a communications protocol developed for PLCs by Modicon

Inc.(AEG Schneider Automation International S.A.S.). It is an open standard and has been

used for a variety of industrial devices.

A query in Modbus/TCP communications is called a command in this manual.

The Modbus/TCP function codes that are supported by the V780 Reader/Writer are given in the follow-

ing table.

7-1-1 Modbus/TCP Communications

7-1-2 Modbus/TCP Function Codes Supported by the V780

Function code Description

FC03 and FC16

(normal commands)

These function codes comply with Modbus/TCP Class 0.

The basic Modbus/TCP function codes are classified in Class 0.

Class 0 contains the following two functions: Read Multiple Resisters (FC03) and Write

Multiple Registers (FC16).

These are called normal commands in this manual.

FC100

(expanded command)

This function code has a unique format that was defined by OMRON.

This function code is used to reduce command/response exchanges between the host

device and Reader/Writer and give priority to the performance of communications with

the host device.

This is called an expanded command in this manual.

Host device

(client)

Reader/Writer

(server)

Ethernet Cable

TCP port number: 502

Command

Response

Power Supply Cable

7 - 3

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-1 Outline

7-1-3 Communications System

There are two communications systems used by the V780 depending on the function codes that are

used.

The communications system that uses normal commands that are compliant with Modbus/TCP Class 0

is shown below.

Refer to 7-2 Message Formats on page 7-5 for details on the normal commands.

The expanded command that has a unique format defined by OMRON (FC100) cannot be sent with a

Modbus/TCP Class 0-compliant protocol. The TCP/IP socket communications of the host device (PLC)

are used instead.

Refer to 7-2 Message Formats on page 7-5 for details on the expanded communications commands.

Refer to 7-4 Communications Procedure on page 7-11 for information on creating a program for TCP/IP

communications.

7-1-3 Communications System

Modbus/TCP Communications System (FC03 and FC16)

TCP/IP Socket Communications System (FC03, FC16, and FC100)

Host device

(client)

Reader/Writer

(server)

Ethernet Cable

FC03 or FC16

TCP port number: 502

Command

Response

Power Supply Cable

Modbus/TCP communications instructions

Modbus/TCP Unit or other applicable Unit

Host device

(client)

Reader/Writer

(server)

Ethernet Cable

FC03, FC16, or FC100

TCP port number: 502

Command

Response

Power Supply Cable

Socket communications instructions

Ethernet Unit or other applicable Unit

7 Modbus/TCP Communications

7 - 4 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Precautions for Correct Use

Communications Units and communications commands that support the Modbus/TCP protocol

support only function codes that comply with Modbus/TCP Class 0. Therefore, the function

code FC100 for expanded commands cannot be used.

You can set any IP address for the V780 Reader/Writer.

For details, refer to 7-6-5 Reader/Writer Setting Commands: Network Settings on page 7-54 or Setting

the IP Address of the Reader/Writer from a Web Browser on page 5-4.

Normally, port number 502 (01F6 hex) is used for Modbus/TCP communications.

With the V780 Reader/Writer, you can change the port number to between 1,024 and 65,535 (0400 hex

and FFFF hex).

For details, refer to ?8-2-3 ???????? (P.8-5)?.

IP Address Settings of the Reader/Writer

Port Numbers Used for Modbus/TCP Communications

7 - 5

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-2 Message Formats

7-2-1 Command Format

7-2 Message Formats

This value is used to identify the message sent by the host device.

The transaction identifier in the response from the Reader/Writer will be a copy of the value that is

specified here.

This field is always 0000 hex.

Specify the number of bytes inclusively from the unit identifier through the end of the data.

If the function code is FC03 or FC16, the maximum field length is 250 bytes.

If the function code is FC100, the maximum field length is 4,346 bytes.

This field is always FF hex.

The function code indicates the command to request execution from the Reader/Writer.

7-2-1 Command Format

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 … Byte-n

Transaction iden-

tifier Protocol identifier Field length Unit

identifier

Func-

tion

code

Data

XXXX hex Always 0000 hex. XXXX hex Always

FF hex.

03 hex,

10 hex,

or 64

hex

XX...XX hex

X: Any value, n: 4,351 max.

Transaction Identifier

Protocol Identifier

Field Length

Unit Identifier

Function Code

Function code Function Remarks

FC03 (03 hex) Read Holding Register Modbus/TCP Class 0 compliant

FC16 (10 hex) Write Holding Register

FC100 (64 hex) Reader/Writer command

This function code is used for commands

with a unique manufacturer definition that

gives priority to the performance of commu-

nications with the host device.

Range included in the field length.

Command frame length

7 Modbus/TCP Communications

7 - 6 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Specify the data that is relevant to the function code.

The format of the data depends on the function code.

The value that was specified in the command is set.

This field is always 0000 hex.

The number of bytes inclusively from the unit identifier through the end of the data is set.

This field is always FF hex.

The value of the function code that was specified in the command is set.

The data that is relevant to the function code is set.

The format of the data depends on the function code.

Data

7-2-2 Response Format for Normal Completion

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 …Byte-n

Transaction iden-

tifier Protocol identifier Field length Unit

identifier

Func-

tion

code

Data

XXXX hex Always 0000 hex. XXXX hex Always

FF hex.

03 hex,

10 hex,

or 64

hex

XX...XX hex

X: Any value, n: 9,215 max.

Transaction Identifier

Protocol Identifier

Field Length

Unit Identifier

Function Code

Data

Range included in the field length.

7 - 7

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-2 Message Formats

7-2-3 Response Format for Error Completion

The value that was specified in the command is set.

This field is always 0000 hex.

This field is always 0003 hex.

This field is always FF hex.

The value of the function code that was specified in the command plus 80 hex is set.

A code that provides information on the error is set.

You can use the error code to identify the error that was detected by the Reader/Writer. The exception

code and error code are related as given below. Refer to the most recent command error information or

command error log to check details on the error using the error code.

7-2-3 Response Format for Error Completion

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit identi-

fier

Function

code

Exception

code

XXXX hex Always 0000 hex. Always 0003 hex. Always FF

hex.

83 hex, 90

hex, or E4

hex

XX hex

X: Any value

Transaction Identifier

Protocol Identifier

Field Length

Unit Identifier

Function Code

Exception Code

Exception

code Exception code meaning V780 error code

01 hex Illegal function

1001 hex Frame length error

1002 hex Frame header error

1003 hex Unknown command error

02 hex Illegal data address 1004 hex Command format error

03 hex Illegal data value 1005 hex Command parameter error

04 hex Failure in slave device

2*** hex RF Tag communications error

1018 hex Command execution failure, minor fault

101F hex Command execution failure, major fault

06 hex Slave device busy 1011 hex Command execution failure, busy

Range included in the field length.

7 Modbus/TCP Communications

7 - 8 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-2-4 Read Multiple Resisters Command/Response (FC03)

Command Format

Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Function code Register address Word count

03 hex XXXX hex 0001 to 0078 hex

(1 to 120)

Normal Response Format

Byte-7 Byte-8 Byte-9 … Byte-n

Function code Byte count Read holding register data

03 hex XX hex XX...XX hex

7-2-5 Write Multiple Resisters Command/Response (FC16)

Command Format

Byte-7 Byte-8 Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 …Byte-n

Function code Register address Word count Byte count Write holding register data

10 hex XXXX hex 0001 to 0078 hex

(1 to 120) Word count x 2 XX...XX hex

Normal Response Format

Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Function code Register address Word count

10 hex XXXX hex 0001 to 0078 hex

(1 to 120)

7-2-6 Expanded Command/Response (FC100)

Command Format

Byte-7 Byte-8 Byte-9 Byte-10 … Byte-n

Function code Subfunction code Expanded command parameters

64 hex XXXX hex XX...XX hex

Normal Response Format

Byte-7 Byte-8 Byte-9 Byte-10 … Byte-n

Function code Subfunction code Expanded response data

64 hex XXXX hex XX...XX hex

7 - 9

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-3 RF Communications Command Options

7-3 RF Communications Command

Options

This section describes the options that you can use together with RF communications commands (mul-

tiaccess or Modbus expansion). You can specify options to get the EPC of the RF Tag, the reception

level, or other communications information together with the normal data for the command.

For commands with the multiaccess specification, the communications information specified with the

option is returned in the response for the command that gets the execution results, i.e., the two com-

mands are used together.

For commands with the Modbus expansion, the communications information specified with the option is

returned as an attachment to the response.

Options

Option Specification Examples:

Specify 0001 hex to have the EPC attached.

Specify 0003 hex to have the EPC and reception level attached.

Specify 0011 hex to have the EPC and diagnostic results attached.

Options Supported by RF Communications Commands

OK: Option can be specified, No: Option cannot be specified. (A parameter error will occur if it is.)

---: Reserved (Always specify 0 for these unused bits.)

Options

Item Relevant bit Description Information size

EPC Bit 0 The StoredPC and EPC code are attached. 32 words

Reception

level

Bit 1 The reception level (signed hexadecimal) is attached.

FFFF to FF9D hex (-1 to -99 [dBm])

• A value of 0 will be set if processing ended in an error.

1 word

Reserved 1 Bits 2 to 3 • These bits are reserved. ---

Diagnostic

result

Bit 4 The diagnostic results (4-digit hexadecimal) are attached.

If communications diagnostics are disabled, 0000 hex is

attached.

For details, refer to Response Formats on page 7-125 under

GET COMMUNICATIONS DIAGNOSTIC INFORMATION on

page 7-125.

1 word

Reserved 2 Bits 5 to 15 • These bits are reserved. ---

Classification Command

Options

Reserved

Diag-

nostic

results

Reserved RSSI EPC

Bits 5 to

15 Bit 4 Bits 2

and 3 Bit 1 Bit 0

Communications

command, multi-

access

SET MULTIACCESS ID READ --- No --- OK No

SET MULTIACCESS DATA READ --- No --- OK OK

7 Modbus/TCP Communications

7 - 10 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Communications

command, Mod-

bus expansion

EXTENDED DATA READ --- OK --- OK OK

EXTENDED DATA WRITE --- OK --- OK OK

EXTENDED MULTIACCESS ID

READ

--- No --- OK No

EXTENDED MULTIACCESS DATA

READ

--- No --- OK OK

Classification Command

Options

Reserved

Diag-

nostic

results

Reserved RSSI EPC

Bits 5 to

15 Bit 4 Bits 2

and 3 Bit 1 Bit 0

7 - 11

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-4 Communications Procedure

7-4-1 Command Communications Procedure

7-4 Communications Procedure

In the computer, PLC, or other host devices, write the program to communicate with the Reader/Writer

using TCP sockets.

If you use an Modbus/TCP master device, follow the communications procedure for the device you are

using.

A connection is required between the host device and Reader/Writer to communicate with the

Reader/Writer. After you establish a connection, send commands and receive the responses.

1Connection Processing: Opening a Socket

Send a request for a connection from the host device to the Reader/Writer and establish a TCP

connection. Monitor for connection timeouts as required.

2Command Send Processing: Sending Socket Data

Send the command from the host device to the Reader/Writer in a message.

Monitor for send timeouts as required.

3Response Reception Processing: Receiving Socket Data

At the host device, wait to receive the message from the host device and receive the response.

Monitor for reception timeouts as required.

4Disconnection Processing: Closing the Socket

Send a request for a disconnection from the host device to the Reader/Writer and disconnect

the TCP connection. Monitor for disconnection timeouts as required.

7-4-1 Command Communications Procedure

Host device

(client)

Reader/Writer

(server)

Connection requested.

Connection request acknowledged.

Disconnection requested.

Disconnection request acknowledged.

Command sent.

Response returned.

Command

execution

7 Modbus/TCP Communications

7 - 12 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Precautions for Correct Use

Access to a Reader/Writer is possible from only one host device at a time.

If a host device B connects to a Reader/Writer while another host device A is already con-

nected to it, the connection between host device A and the Reader/Writer will be automatically

disconnected and a connection with host device B will be established.

If an error response is received, you can check the most recent command error information or com-

mand error log in the Reader/Writer to get details on the nature of the error. An error has occurred if the

function code in the response that was returned from the Reader/Writer is 80 hex higher than the func-

tion code in the query.

You can do this by sending a GET MOST RECENT ERROR INFORMATION command or GET COM-

MAND ERROR LOG command from the host device or by using the Web browser interface through the

Web server.

7-4-2 Error Response Reception Procedure

Error

occurs.

Error

detected.

Host device

(client)

Reader/Writer

(server)

Command

execution

GET MOST RECENT ERROR

INFORMATION command sent.

(Or, GET COMMAND ERROR LOG command sent.)

Error information returned.

Command sent.

Response returned.

Function code + 80 hex

7 - 13

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-4 Communications Procedure

7-4-3 RF Tag Communications Command Procedure for Single-access Communica-

tions

When you send an RF Tag communications command with single-access communications, the

Reader/Writer communicates with only one RF Tag in the communications field.

With a normal command, the maximum size of data that you can read from an RF Tag is 120 words. To

read more data than that, you must use more than one READ DATA or WRITE DATA command, or use

an expanded command.

If communications with an RF Tag are not possible, a “failure in slave device” exception code (04 hex)

is returned in an error response. Following the error response reception procedure.

7-4-3 RF Tag Communications Command Procedure for Single-access

Communications

Using a Normal Command (FC03 or FC16)

Host device

(client)

Reader/Writer

(server)

RF Tag A

Command

execution

Command

execution

READ DATA communications

command sent.

Communications field

RF Tag memory

read/written.

RF Tag memory

read/written.

WRITE DATA communications

command sent.

Read data (120 words max.)

Data to write (120 words max.)

Response returned.

Host device

(client)

Reader/Writer

(server)

Command

execution

READ DATA communications

command sent.

Communications field

GET MOST RECENT ERROR INFORMATION

command sent.

Exception code: Failure in slave device

Error code: RF Tag missing error

Response returned.

Timeout (TMO)

Error information returned.

7 Modbus/TCP Communications

7 - 14 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

If you want to check the EPC code or reception level when communications with the RF Tag are suc-

cessful, send a GET RF TAG ADDITIONAL INFORMATION command after the response to the com-

munications command has been received. The reception level from the RF Tag that was just

communicated with will be returned.

With an expanded command, the maximum size of data that you can read from an RF Tag is 2,048

words.

If an error occurs in the RF Tag communications, the error code is returned with the response. No addi-

tional command is required to check the error code.

You can also specify a command option to have the EPC code or reception level returned with the other

data.

When you send an RF Tag communications command with multiaccess communications, the

Reader/Writer communicates with more than one RF Tag in the communications field.

The Reader/Writer will communicate with all of the RF Tags in the communications field within the com-

munications timeout time (64 max.) and then return a response.

Using an Expanded Command (FC100)

7-4-4 RF Tag Communications Command Procedure for Multiaccess

Communications

Host device

(client)

Reader/Writer

(server)

RF Tag A

Command

execution

READ DATA communications

command sent.

Communications field

RF Tag memory

read/written.

GET RF TAG ADDITIONAL

INFORMATION command sent.

Reception level

Response returned.

Host device

(client)

Reader/Writer

(server)

RF Tag A

Command

execution

EXPANDED DATA READ

communications command sent.

Communications field

RF Tag memory

read/written.

Error code

+ EPC code

+ Reception level

Read data (2,048 words max.)

Response returned

(2,048 words max.)

7 - 15

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-4 Communications Procedure

7-4-4 RF Tag Communications Command Procedure for Multiaccess Communica-

tions

With a normal multiaccess RF Tag command, two commands are used to exchange the data, one to set

communications and another to get the results.

1Sending the Command to Set Communications

First, send the command to set communications.

If the Reader/Writer detects even one RF Tag, the results of execution are returned as a normal

response.

If no RF Tags were detected, an RF Tag missing error is returned.

2Sending the Command to Get the Results

Send the command to get the results.

When you execute the command to get the results, the results of communications with the first

RF Tag that was detected will be returned. The communications results will contain the number

of RF Tags detected, the error code, and, for READ DATA, the EPC code.

If the option is specified, the reception level information is also attached.

3Repeatedly Getting the Results

Execute the command to get the results once for every RF Tag that was detected.

The number of RF Tags that was detected by the Reader/Writer is included in the response to

the command to get the results. Repeatedly send the command until the number of RF Tags in

the response is 1.

Using a Normal Command (FC03 or FC16)

Host device

(client)

Reader/Writer

(server)

RF Tag A

RF Tag B

RF Tag C

SET MULTIACCESS DATA READ

communications command sent.

GET MULTIACCESS DATA READ RESULTS communications command sent.

Communications field

RF Tag memory

read/written.

Error code Read data

Number of RF Tags: 3

EPC code

+ Reception level

Error code Read data

Number of RF Tags: 2

EPC code

+ Reception level

Response returned.

GET MULTIACCESS DATA READ RESULTS communications command sent.

Error code Read data

Number of RF Tags: 1

EPC code

+ Reception level

Response returned.

Command execution

Timeout (TMO)

RF Tag A

communications

results

RF Tag B

communications

results

RF Tag C

communications

results

7 Modbus/TCP Communications

7 - 16 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Precautions for Correct Use

If you execute another communications command (e.g., a single-access read, write, or fill com-

mand or a multiaccess read command) before you execute the commands to get the results,

the multiaccess communications results held in the Reader/Writer will be cleared.

With an expanded command, you can execute one multiaccess RF Tag command to get the communi-

cations results from more than one RF Tag with only one command.

Precautions for Correct Use

The normal MULTIACCESS DATA READ and MULTIACCESS ID READ communications com-

mands are designed for applications that read two to five RF Tags at one time. If your applica-

tion requires reading more RF Tags than that, we recommend that you use an expanded

command.

Using an Expanded Command (FC100)

Host device

(client)

Reader/Writer

(server)

RF Tag A

RF Tag B

RF Tag C

SET MULTIACCESS DATA READ

communications command sent.

Communications field

RF Tag memory

read/written.

Error code Read data

Number of RF Tags: 3

EPC code

+ RSSI level

Error code Read dataEPC code

+ RSSI level

Response returned.

Error code Read dataEPC code

+ RSSI level

Command execution

Timeout

(TMO)

RF Tag A

communications results

RF Tag B

communications results

RF Tag C

communications results

7 - 17

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-5 Commands

The commands that you can send to a Reader/Writer are listed below.

The command codes are used to identify the commands and they are recorded in the most recent com-

mand error information and command error log with an error response is returned. (This information is

not included in the Modbus/TCP message format.)

Single-access Communications Commands

Command name Function code Register address Command code

READ ID FC03 4000 hex 0001 hex

WRITE ID FC16 4000 hex 0002 hex

READ DATA FC03 0000 to 07FF hex

1000 to 17FF hex

2000 to 27FF hex

3000 to 3FFF hex*1

0003 hex

WRITE DATA FC16 0000 to 07FF hex

1000 to 17FF hex

2000 to 27FF hex

3000 to 3FFF hex

0004 hex

LOCK FC16 8000 hex 0005 hex

DATA FILL FC16 8100H hex 0006 hex

Multiaccess Communications Commands

Command name Function code Register address Command code

SET MULTIACCESS ID READ FC16 Always 9000 hex. 0101 hex

GET MULTIACCESS ID READ

RESULTS

FC03 Always 9100 hex. 0102 hex

SET MULTIACCESS DATA READ FC16 Always 9200 hex. 0103 hex

GET MULTIACCESS DATA READ

RESULTS

FC03 Always 9300 hex. 0104 hex

Modbus Expansion Communications Commands

Command name Function code Subfunction code Command code

EXTENDED DATA READ FC100 0001 hex 0201 hex

EXTENDED DATA WRITE FC100 0002 hex 0202 hex

EXTENDED MULTIACCESS ID READ FC100 0003 hex 0203 hex

EXTENDED MULTIACCESS DATA

READ

FC100 0004 hex 0204 hex

7 Modbus/TCP Communications

7 - 18 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Reader/Writer Control Commands

Command name Function code Register address Command code

INITIALIZE FC16 A000 hex 1001 hex

RESET FC16 A100 hex 1002 hex

STOP FC16 A200 hex 1003 hex

RESET FOCUS FC16 A300 hex 1004 hex

Reader/Writer Setting Commands: Network Settings

Command name Function code Register address Command code

SET TCP/IP COMMUNICATIONS

CONDITIONS

FC16 B000 hex 2001 hex

GET TCP/IP COMMUNICATIONS

CONDITIONS

FC03 B000H hex 2002 hex

SET DEVICE NAME FC16 B100 hex 2003 hex

GET DEVICE NAME FC03 B100 hex 2004 hex

SET MODBUS/TCP COMMUNICA-

TIONS CONDITIONS

FC16 B200 hex 2005 hex

GET MODBUS/TCP COMMUNICA-

TIONS CONDITIONS

FC03 B200 hex 2006 hex

SET WEB COMMUNICATIONS

CONDITIONS

FC16 B300 hex 2007 hex

GET WEB COMMUNICATIONS

CONDITIONS

FC03 B300 hex 2008 hex

SET WEB PASSWORD FC16 B400 hex 2009 hex

GET WEB PASSWORD FC03 B400 hex 200A hex

Reader/Writer Setting Commands: Device Settings

Command name Function code Register address Command code

SET OPERATION INDICATOR

CUSTOM CONDITIONS

FC16 B800 hex 5001 hex

GET OPERATION INDICATOR

CUSTOM CONDITIONS

FC03 B800 hex 5002 hex

Reader/Writer Setting Commands: Communications Settings

Command name Function code Register address Command code

SET TAG COMMUNICATIONS

CONDITIONS

FC16 C000 hex 3001 hex

GET TAG COMMUNICATIONS

CONDITIONS

FC03 C000 hex 3002 hex

SET TRANSMISSION POWER FC16 C100 hex 3003 hex

GET TRANSMISSION POWER FC03 C100 hex 3004 hex

SET CHANNEL FC16 C200 hex 3005 hex

GET CHANNEL FC03 C200 hex 3006 hex

SET GEN2 SESSION FC16 C300 hex 3007 hex

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-5 Commands

7-4-4 RF Tag Communications Command Procedure for Multiaccess Communica-

tions

GET GEN2 SESSION FC03 C300 hex 3008 hex

SET ACCESS PASSWORD FC16 C400 hex 3009 hex

GET ACCESS PASSWORD FC03 C400 hex 300A hex

SET RF TAG SELECTION FILTER

CONDITIONS

FC16 C500 hex 300B hex

GET RF TAG SELECTION FILTER

CONDITIONS

FC03 C500 hex 300C hex

SET RSSI FILTER CONDITIONS FC16 C600 hex 300D hex

GET RSSI FILTER CONDITIONS FC03 C600 hex 300E hex

SET TRANSMISSION TIME FC16 C700 hex 300F hex

GET TRANSMISSION TIME FC03 C700 hex 3010 hex

Maintenance Commands: Device Information

Command name Function code Register address Command code

GET MODEL INFORMATION FC03 D000 hex 4001 hex

GET FIRMWARE VERSION FC03 D100 hex 4002 hex

GET MAC ADDRESS FC03 D200 hex 4003 hex

GET OPERATING STATUS FC03 D300 hex 4004 hex

GET TIME INFORMATION FC03 D400 hex 4005 hex

SET TIME INFORMATION FC16 D400 hex 4006 hex

Maintenance Commands: Log Information

Command name Function code Register address Command code

GET SYSTEM ERROR LOG FC03 D600 hex 4101 hex

CLEAR SYSTEM ERROR LOG FC16 D700 hex 4102 hex

GET COMMAND ERROR LOG FC03 D800 hex 4103 hex

GET MOST RECENT COMMAND

ERROR INFORMATION

FC03 D900 hex 4104 hex

Maintenance Commands: RF Communications Information

Command name Function code Register address Command code

GET RF TAG ADDITIONAL INFOR-

MATION

FC03 DA00 hex 4201 hex

GET NOISE LEVEL FC03 DB00 hex 4202 hex

GET COMMUNICATIONS DIAG-

NOSTIC INFORMATION

FC03 DC00 hex 4203 hex

Command name Function code Register address Command code

7 Modbus/TCP Communications

7 - 20 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

Function

This command reads the ID (i.e., the EPC code) of the RF Tag in the communications field.

Command Format

Response Formats

• Normal Response

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

Additional Information

• StoredPC Bit Format

7-6-1 Single-access Communications Commands

READ ID

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex 4000 hex 0020 hex

Parameter Description

Word count The number of words in the read StoredPC and EPC code (always 0020 hex).

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

StoredPC

X X 0000 hex 0043 hex FF hex 03 hex 40 hex 2 bytes

Byte-11 …Byte-72

EPC code

62 bytes

Parameter Description

StoredPC Gives the StoredPD data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length. (Refer to StoredPC Bit Format on page

20, below.)

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the StoredPC

are filled with 00 hex.

10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F

PC + EPC length

16 x (n + 1)

RFU 0:EPS

1:AFI

Data

7 - 21

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

• Error Response

Execution Examples

Reading the ID Data from the RF Tagt

Example 1: Execution When an RF Tag Is in the Communications Field (StoredPC: 3000 hex, EPC

code: 111122223333444455556666 hex)

TX: 000000000006FF0340000020

RX: 000000000043FF0340300011112222333344445555666600…00

* Words 7 through 31 of the EPC code section (i.e., the words past the EPC length of 6 words) are

filled with zeros.

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04

Hex (Failure in Device))

TX: 000000000006FF0340000020

RX: 000000000003FF8304

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion

code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 Modbus/TCP Communications

7 - 22 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command writes the ID (i.e., the EPC code) to the RF Tag in the communications field.

Command Format

Response Formats

• Normal Response

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

WRITE ID

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 2 bytes FF hex 10 hex 4000 hex 2 bytes

Byte-12 Byte-13 Byte-14 Byte-15 …Byte-n

Byte

count

EPC length EPC code

1 byte 2 bytes 0 to 62 bytes

Parameter Description

Field length Setting range: 0015 to 0047 hex

Word count Setting range: 0001 to 0020 hex

Byte count Setting range: 02 to 40 hex

EPC length Gives the word size of the EPC code in 4-digit hexadecimal.

0000 to 001F hex (0 to 32)

EPC code Gives the Tag-specific information according to Gen2 standards.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 2 bytes

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion

code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

Execution Examples

Writing the ID Data to an RF Tag (EPC Length: 0006 Hex, EPC Code: 111122223333444455556666

Hex)

TX: 000000000015FF10400000070E0006111122223333444455556666

RX: 000000000006FF1040000007

7 Modbus/TCP Communications

7 - 24 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command reads data from the RF Tag in the communications field.

Command Format

Response Formats

• Normal Response

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

READ DATA

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex 2 bytes 2 bytes

Parameter Description

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Word count Specify in 4-digit hexadecimal the number of words of data to read.

Setting range: 0001 to 0078 hex (1 to 120)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 …Byte-n

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Read data

X X 0000 hex 00 hex 1 byte FF hex 03 hex 1 byte 2 to 240 bytes

Parameter Description

Byte count Contains the number of bytes of data that were read from the RF Tag in 2-digit hexa-

decimal. (02 to F0 hex)

Read data The data that was read from the RF Tag is attached.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

Execution Examples

Reading Four Words of Data (1111222233334444 Hex) Starting from Word Address 0123 Hex (User

Area) in the RF Tag

TX: 000000000006FF0331230004

RX: 000000000013FF03081111222233334444

7 Modbus/TCP Communications

7 - 26 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command writes data to the RF Tag in the communications field.

Command Format

Response Formats

• Normal Response

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

WRITE DATA

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-1

0Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 2 bytes FF hex 10 hex 2 bytes 2 bytes

Byte-12 Byte-13 …Byte-n

Byte

count

Data to write

1 byte 1 to 120 words

Parameter Description

Field length Setting range: 0009 to 00F7 hex (9 to 247)

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Word count Specify in 4-digit hexadecimal the number of words of data to write.

Setting range: 0001 to 0078 hex (120 words max.)

Byte count Specify in 4-digit hexadecimal the number of bytes of data to write.

Setting range: 02 to F0 hex (240 bytes max.)

Data to write Specify the data to write to RF Tag.

Between 1 and 120 words of data can be written with one command.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 2 bytes

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

Execution Examples

Writing Four Words of Data (1111222233334444 Hex) Starting from Word Address 0123 Hex (User

Area) in the RF Tag

TX: 00000000000FFF1031230004081111222233334444

RX: 000000000006FF1031230004

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 Modbus/TCP Communications

7 - 28 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command locks or unlocks the memory of the RF Tag in the communications field.

Command Format

Note 1. When an area is locked, the specified password is written to the access password area in the RF Tag.

2. If an address error, lock error, or RF Tag system error occurs when locking an area, the access pass-

word area in the RF Tag will be cleared to all zeros.

3. When an RF Tag is unlocked, the access password area in the RF Tag will be cleared to all zeros.

Response Formats

• Normal Response

LOCK

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000F hex FF hex 10 hex 8000F hex 0004 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 …Byte-20

Byte

count

Lock operation Area to lock/unlock Password

08 hex 2 bytes 2 bytes 4 bytes

Parameter Description

Lock operation Specify locking or unlocking.

0000 hex: Unlock

0001 hex: Lock

• If you specify locking the EPC, TID, or user area, you will no longer be able to write data to

that area.

• If you specify locking the access password, you will no longer be able to read the access

password area.

• When you unlock an area, specify all of the areas that have been locked.

Area to

lock/unlock

Specify one or more of the EPC, TID, and user areas.

EPC area: 0001 hex

TID area: 0002 hex

User area: 0004 hex

Access password: 0008 hex

• If all zeros is specified, a command parameter error will occur.

Password Specify the access password to set in the Tag in 8-digit hexadecimal (32 bits) (00000000 hex).

Locking: The access password to set in the RF Tag to lock.

Unlocking: The access password in the RF Tag to unlock.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 2 bytes

Parameter Description

Word count The word count from the command is set.

7 - 29

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

• Error Response

Execution Examples

Example 1: Locking the User Area of the RF Tag with a Password of 12345678 Hex

TX: 00000000000FFF1080000004080001000412345678

RX: 000000000006FF1080000004

Example 2: Unlocking the User Area

TX: 00000000000FFF1080000004080000000412345678

RX: 000000000006FF1080000004

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 Modbus/TCP Communications

7 - 30 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command writes the specified data to the specified number of words beginning from the speci-

fied write start address. The specifications are made in the command.

Command Format

Response Formats

• Normal Response

Note If the reception level is required, use GET RF TAG ADDITIONAL INFORMATION on page 7-121.

DATA FILL

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000D hex FF hex 10 hex 8100 hex 0003 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Byte

count

Fill information

Fill address Number of fill

words

Fill data

06 hex 2 bytes 2 bytes 2 bytes

Parameter Description

Word count Number of words of fill information (0003 hex)

Byte count Number of bytes of fill information (06 hex)

Fill information Fill address Specify in 4-digit hexadecimal the start address for writing data in the RF

Tag .

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Number of fill

words

Specify in 4-digit hexadecimal the number of words of data to fill.

Setting range: 0000 hex or 0001 to 0800 hex

• If 0000 hex is specified for the number of fill words, the entire memory

area will be filled.

• You cannot write data to more than one area with the same command.

Fill data Specify in 4-digit hexadecimal the data to write to the RF Tag.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex 2 bytes 0003 hex

Parameter Description

Word count The word count from the command is set.

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-1 Single-access Communications Commands

• Error Response

Execution Examples

Example 1: Writing 5A5A Hex to Four Words Starting from Word Address 0100 Hex (User Area) in

the RF Tag

TX: 00000000000DFF108100000306310000045A5A

RX: 000000000006FF1081000003

Example 2: Writing 5A5A Hex to the Entire User Area in the RF Tag

TX: 00000000000DFF108100000306300000005A5A

RX: 000000000006FF1081000003

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 Modbus/TCP Communications

7 - 32 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command specifies reading the IDs (i.e., the ECP codes) of the RF Tags in the communications

field.

Command Format

Response Formats

• Normal Response

• Error Response

7-6-2 Multiaccess Communications Commands

SET MULTIACCESS ID READ

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex 9000F hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Options

02 hex 2 bytes

Parameter Description

Word count The number of words for the option (0001 hex)

Byte count The number of option bytes (02 hex)

Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Options are implemented in a normal response to the GET MULTIACCESS ID

READ RESULTS on page 7-33.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Word count

X X 0000 hex 0004 hex FF hex 10 hex 0001 hex

Parameter Description

Word count Always 0001 hex.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-2 Multiaccess Communications Commands

Execution Examples

Specifying Multiaccess Reading of the IDs by the Reader/Writer with No Options

Example 1: Execution when an RF Tag Is in the Communications Field

TX: 000000000009FF1090000001020000

RX: 000000000004FF100001

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04

Hex (Failure in Device))

TX: 000000000009FF1090000001020000

RX: 000000000003FF9004

Function

This command reads data from the RF Tag in the communications field.

You can specify reading up to 2,048 words with one GET MULTIACCESS ID READ RESULTS com-

mand.

Command Format

Response Formats

• Normal Response

GET MULTIACCESS ID READ RESULTS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex 9100F hex 2 bytes

Parameter Description

reading

Word count 0022 hex + Option size

• For details on option sizes, refer to 7-3 RF Communications Command Options

on page 7-9.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Number of RF

Tags

X X 0000 hex 2 bytes FF hex 03 hex 1 byte 2 bytes

Byte-12 ... ... ... ... ... ... Byte-12+ n-1

Error code Read data Options

2 bytes 2 to 64 bytes 0 to 66 bytes

StoredPC EPC code

Reception level

2 bytes 62 bytes 2 bytes

Parameter Description

Field length Gives the total number of bytes starting from the unit identifier in 4-digit hexa-

decimal.

0009 to 0047 hex + Option size

• For details on option sizes, refer to 7-3 RF Communications Command

Options on page 7-9.

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-2 Multiaccess Communications Commands

• Error Response

Byte count Gives the total number of bytes starting from the number of RF Tags in 2-digit

hexadecimal.

06 to 44 hex + Option size

• For details on option sizes, refer to 7-3 RF Communications Command

Options on page 7-9.

Number of RF Tags Gives the number of RF Tags that were read in 4-digit decimal. (0001 to 001F

hex)

The number of RF Tags is decremented when a command response is

returned.

Error code Gives the RF Tag access results in 4-digit hexadecimal.

0000 hex: Normal end

Not 0000 hex: Error code

• For details on the error codes, refer to ?9-2-1 ?????? (P.9-3)?.

Read data The data that was read from the RF Tag is attached.

Options This section may be omitted depending on the option value for the SET MULTI-

ACCESS ID READ command.

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length.

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex.

Reception level The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

Parameter Description

7 Modbus/TCP Communications

7 - 40 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Specifying Getting the Results of Multiaccess Reading of Four-word Data by the Reader/Writer with

No Options

There are three RF Tags in the communications field.

 Getting the First Results (Getting the Communications Results for RF Tag A)

TX: 000000000006FF0393000006

RX: 00000000000FFF030C00030000AAAA…AAAA

*Number of RF Tags: 3, RF Tag A error code + Read data (All four words are AAAA hex.)

 Getting the Second Results (Getting the Communications Results for RF Tag B)

TX: 000000000006FF0393000006

RX: 00000000000FFF030C00020000AAAA…AAAA

*Number of RF Tags: 2, RF Tag B error code + Read data (All four words are BBBB hex.)

 Getting the Third Results (Getting the Communications Results for RF Tag C)

TX: 000000000006FF0393000006

RX: 00000000000FFF030C000120020000…0000

*Number of RF Tags: 1, RF Tag C error code (2002 hex: Communications error)

 Getting the Fourth Results (No Communications Results)

TX: 000000000006FF0393000006

RX: 00000000000FFF030C000000000000…0000

*Number of RF Tags: 0, Remaining data: All 00 hex

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

Function

This command reads data from the RF Tag in the communications field.

You can specify reading up to 2,048 words with one EXTENDED DATA READ command.

Command Format

Response Formats

• Normal Response

7-6-3 Modbus Expansion Communications Commands

EXTENDED DATA READ

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Read area start

address

X X 0000 hex 000A hex FF hex 64 hex 0001 hex 2 bytes

Byte-12 Byte-13 Byte-14 Byte-15

Read size Options

2 bytes 2 bytes

Parameter Description

Subfunction code 0001 hex: EXTENDED DATA READ

Read area start address Specify in 4-digit hexadecimal the start address for reading data.

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Read size Specify in 4-digit hexadecimal the start address for reading data.

Setting range: 0001 to 0800 hex (2,048 words max.)

Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Error code

X X 0000 hex 2 bytes FF hex 64 hex 0001 hex 0000 hex

Byte-1

2... ... ... ... ... ... ... ... ... Byte-n

Read data Options

1 to 2,048 words (2 to 4,096

bytes)

0 to 68 bytes

StoredPC EPC code Reception level Diagnostic results

2 bytes 62 bytes 2 bytes 2 bytes

Note The contents depend on the options specified in the command.

7 Modbus/TCP Communications

7 - 42 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response: RF Tag Communications Error

• Error Response: Command Error

Execution Examples

Reading 2,048 Words of Data Starting from Word Address 0000 Hex (User Area) in the RF Tag with

No Options

Example 1: Execution When an RF Tag Is Not in the Communications Field (Read Data:

1111222233334444…FFFF Hex)

TX: 00000000000AFF640001300008000000

RX: 000000000806FF64000100001111222233334444…FFFF

Example 2: Execution When an RF Tag Is Not in the Communications Field (Error Code: 2001 Hex

(RF Tag Missing Error))

TX: 00000000000AFF640001300008000000

RX: 000000000006FF6400012001

Parameter Description

Field length 0008 to 1006 hex + Option size

• For details on option sizes, refer to 7-3 RF Communications Command

Options on page 7-9.

Read data The data that was read from the RF Tag is attached. (Range: 0001 to

0800 hex, in words)

Options These parameters may be omitted depending on the option value.

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length.

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex.

Reception level The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

Diagnostic

results

Gives the diagnostic results in 4-digit hexadecimal.

For details, refer to Response Formats on page 7-125 under NTLPxREF

Communications Diagnostic Information.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction iden-

tifier

Protocol identifier Field length Unit

identifier

Func-

tion

code

Subfunction code Error code

X X 0000 hex 0006 hex FF hex 64 hex 0001 hex 2 bytes

Parameter Description

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex E5 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 - 43

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

Function

This command writes data to the RF Tag in the communications field.

You can specify writing up to 2,048 words with one EXTENDED DATA WRITE command.

Command Format

Response Formats

• Normal Response

EXTENDED DATA WRITE

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Write area start

address

X X 0000 hex 000C to 100A hex FF hex 64 hex 0002 hex 2 bytes

Byte-12 Byte-13 Byte-14 ... Byte-n

+ n

Write size Data to write Options

2 bytes 1 to 2,048 words (2 to 4,096

bytes)

2 bytes

Parameter Description

Field length Setting range: 000C to 100A hex

Subfunction code 0002 hex: EXTENDED DATA WRITE

Write area start address Specify in 4-digit hexadecimal the start address for writing data in the RF Tag.

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Write size Specify in 4-digit hexadecimal the number of words of data to write.

Setting range: 0001 to 0800 hex (2,048 words max.)

Data to write The data to write

Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Error code

X X 0000 hex 2 bytes FF hex 64 hex 0002 hex 0000 hex

Byte-12 ... ... ... ... ... ... Byte-n

Options

0 to 68 bytes

StoredPC EPC code Reception level Diagnostic results

2 bytes 62 bytes 2 bytes 2 bytes

7 Modbus/TCP Communications

7 - 44 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response: RF Tag Communications Error

• Error Response

Execution Examples

Writing 2,048 Words of Data Starting from Word Address 0000 Hex (User Area) in the RF Tag with

No Options

Example 1: Execution When an RF Tag Is Not in the Communications Field (Error Code: 0000 (Nor-

mal Completion))

TX: 00000000100AFF64000230001111222233334444…FFFF0000

RX: 000000000006FF6600010000

Example 2: Execution When an RF Tag Is Not in the Communications Field (Error Code: 2001 Hex

(RF Tag Missing Error))

TX: 00000000100AFF64000230001111222233334444…FFFF0000

RX: 000000000006FF640002200

Parameter Description

Field length Normal completion: 0006 hex + Option size

• For details on option sizes, refer to 7-3 RF Communications Command

Options on page 7-9.

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

Options These parameters may be omitted depending on the option value.

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length.

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex.

Reception level The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

Diagnostic

results

Gives the diagnostic results in 4-digit hexadecimal.

For details, refer to Response Formats on page 7-125 under NTLPxREF

Communications Diagnostic Information.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction iden-

tifier

Protocol identifier Field length Unit

identifier

Func-

tion

code

Subfunction code Error code

X X 0000 hex 0006 hex FF hex 64 hex 0002 hex 2 bytes

Parameter Description

Error code For details, refer to N?9-2-1 ?????? (P.9-3)?.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex E4 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 - 45

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

Function

This command reads the IDs (EPC codes) of multiple RF Tags in the communications field.

You can get the IDs (EPC codes) of more than one RF Tag with one EXTENDED MULTIACCESS ID

READ command.

Command Format

Response Formats

• Normal Response or Error Response: RF Tag Communications Error

EXTENDED MULTIACCESS ID READ

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Options

X X 0000 hex 0006 hex FF hex 64 hex 0003 hex 2 bytes

Parameter Description

Subfunction code 0003 hex: EXTENDED MULTIACCESS ID READ

Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Number of RF

Ta g s ( m)

X X 0000 hex 2 bytes FF hex 64 hex 0003 hex 0000 to 0040 hex

Byte-12 ... Byte-12 +

n - 1 ... Byte-12+n

*(m-1) ... Byte-12+(

n*m)-1

Information from RF Tag 1 ... Information from RF Tag m

n = 66 to 68 bytes ... n = 66 to 68 bytes

Information from RF Tag x

Error code StoredPC EPC code Options

Reception level

2 bytes 2 bytes 62 bytes 2 bytes

Parameter Description

Field length 0048 to 0F86 hex + (Option size × m)

• For details on option sizes, refer to 7-3 RF Communications Command

Options on page 7-9.

Number of RF Tags Gives the number of RF Tags that were detected in 4-digit decimal.

0000 to 0040 hex (0 to 64)

Information

from RF Tag

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length.

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex.

Options These parameters may be omitted depending on the option value.

Recep-

tion

level

The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

7 Modbus/TCP Communications

7 - 46 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response: Command Error

Execution Examples

Execution for Reading ID Data from Multiple RF Tags with no Option Specification

Example 1: Execution When Four RF Tags Are in the Communications Field

TX: 000000000006FF6400030000

RX: 000000000116FF6400030004

00003000AAAA…AAAA0000…0000: RF Tag A error code + StoredPC + EPC code (The six

words of the EPC length are all AAAA hex.)

00003000BBBB…BBBB0000…0000: RF Tag B error code + StoredPC + EPC code (The six

words of the EPC length are all BBBB hex.)

00003000CCCC…CCCC0000…0000: RF Tag C error code + StoredPC + EPC code (The six

words of the EPC length are all CCCC hex.)

2002000000000000000000…0000:

RF Tag D error code (2002 hex (communications error))

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04

Hex (Failure in Device))

TX: 000000000006FF6400030000

RX: 000000000003FFE404

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex E4 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 47

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-3 Modbus Expansion Communications Commands

Function

This command reads data from multiple RF Tags in the communications field.

You can get data from more than one RF Tag with one EXTENDED MULTIACCESS DATA READ

command.

Command Format

Response Formats

• Normal Response

EXTENDED MULTIACCESS DATA READ

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Read area start

address

X X 0000 hex 000A hex FF hex 64 hex 0004 hex 2 bytes

Byte-12 Byte-13 Byte-14 Byte-15

Read size Options

2 bytes 2 bytes

Parameter Description

Subfunction code 0004 hex: EXTENDED MULTIACCESS DATA READ

Read area start address Specify in 4-digit hexadecimal the start address for reading data.

Setting ranges (word address specifications)

0000 to 07FF hex: Reserved area

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

Read size Specify in 4-digit hexadecimal the start address for reading data.

Setting range: 0001 to 0020 hex (1 to 32)

Options For details, refer to 7-3 RF Communications Command Options on page 7-9.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Subfunction code Number of RF

Ta g s ( m)

X X 0000 hex 2 bytes FF hex 64 hex 0004 hex 0000 to 0040 hex

Byte-12 ... Byte-12 + n - 1 ... Byte-12+n*

(m-1) ... Byte-12+

(n*m)-1

Information from RF Tag 1 ... Information from RF Tag m

n = 4 to 132 bytes ... n = 4 to 132 bytes

Information from RF Tag x

Error code Read data Options

2 bytes 2 to 64 bytes 0 to 66 bytes

StoredPC EPC code Reception level

2 bytes 62 bytes 2 bytes

7 Modbus/TCP Communications

7 - 48 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response

Note If the exception code is 04 hex (failure in slave device), this format is not used and a response is returned.

Execution Examples

Reading 4 Words of Data Starting from Word Address 0123 Hex (User Area) in Multiple RF Tags

with No Options

Example 1: Execution When Four RF Tags Are in the Communications Field

TX: 00000000000AFF640004312300040000

RX: 00000000002EFF6400040004

0000AAAAAAAAAAAAAAAA: RF Tag A error code + Read data (4 words, all AAAA

hex)

0000BBBBBBBBBBBBBBBB: RF Tag B error code + Read data (4 words, all BBBB

hex)

0000CCCCCCCCCCCCCCCC: RF Tag C error code + Read data (4 words, all CCCC

hex)

2002000000000000000000: RF Tag D error code (2002 hex (communications error))

Example 2: Execution When an RF Tag Is Not in the Communications Field (Exception Code: 04

Hex (Failure in Device))

TX: 00000000000AFF640004312300040000

RX: 000000000003FFE404

Parameter Description

Field length 000A to 2106 hex + (Option size × m)

• For details on option sizes, refer to 7-3 RF Communications Command

Options on page 7-9.

Number of RF Tags Gives the number of RF Tags that were detected in 4-digit decimal.

0000 to 0040 hex (0 to 64)

Information

from RF Tag

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

Read data The data that was read from the RF Tag is attached.

The bytes that exceed the word count will be filled with 00 hex.

Options This section may be omitted depending on the option value for the SET

MULTIACCESS ID READ command.

Stored

Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length.

EPC

code

Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex.

Recep-

tion

level

The reception level is attached in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99 [dBm])

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex E4 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 49

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-4 Reader/Writer Control Commands

Function

This command initializes the Reader/Writer settings. (That is, it returns them to the default settings.)

Command Format

Response Formats

• Normal Response

• Error Response

7-6-4 Reader/Writer Control Commands

INITIALIZE

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex A000 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Options

02 hex 0000 hex

Parameter Description

Word count The number of words for the option (0001 hex)

Byte count The number of option bytes (02 hex)

Options 0000 hex: No options

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex A000 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 50 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution to Initialize the Reader/Writer Settings

TX: 000000000009FF10A0000001020000

RX: 000000000006FF10A0000001

7 - 51

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-4 Reader/Writer Control Commands

Function

This command restarts the entire Reader/Writer.

Command Format

Response Formats

• Normal Response

Note A response is not returned for forced resetting.

• Error Response

Execution Examples

Execution to Restart the Entire Reader/Writer

TX: 000000000009FF10A1000001020000

RX: 000000000006FF10A1000001

RESET

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex A100 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Options

02 hex 2 bytes

Parameter Description

Word count The number of words for the option (0001 hex)

Byte count The number of option bytes (02 hex)

Options 0001 hex: Repeat

FFFF hex: Forced reset

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex A100 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 52 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command stops RF Tag communications command execution by the Reader/Writer.

Command Format

Response Formats

• Normal Response

Note A response is not returned for forced resetting.

• Error Response

Execution Examples

Execution to Stop RF Tag Communications Command Execution by the Reader/Writer

TX: 000000000009FF10A2000001020000

RX: 000000000006FF10A2000001

STOP

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex A200 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Options

02 hex 0000 hex

Parameter Description

Word count The number of words for the option (0001 hex)

Byte count The number of option bytes (02 hex)

Options 0000 hex: No options

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex A200 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 53

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-4 Reader/Writer Control Commands

Function

This command initializes the target level information of all the RF Tags that are being monitored by

the Reader/Writer in Focus Mode.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution to Initialize Target Levels of All RF Tags Monitored by Reader/Writer in Focus Mode

TX: 000000000009FF10A3000001020000

RX: 000000000009FF10A3000001020000

RESET FOCUS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex A300 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Options

02 hex 0000 hex

Parameter Description

Word count The number of words for the option (0001 hex)

Byte count The number of option bytes (02 hex)

Options 0000 hex: No options

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex A300 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 54 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the TCP/IP communications conditions of the Reader/Writer.

Command Format

Response Formats

• Normal Response

7-6-5 Reader/Writer Setting Commands: Network Settings

SET TCP/IP COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0015 hex FF hex 10 hex B000 hex 0007 hex

Byte-12 Byte-13 Byte-14 Byte-15 ... Byte-18 Byte-19 ... Byte-22 Byte-23 ... Byte-26

Byte

count

TCP/IP communications conditions

0E hex IP address setting

method

IP address Subnet mask Gateway address

2 bytes 4 bytes 4 bytes 4 bytes

Parameter Description Default setting

tions.

Word count The number of words in the TCP/IP communications conditions (0007 hex)

Byte count The number of bytes in the TCP/IP communications conditions (0E hex)

TCP/IP

commu-

nica-

tions

condi-

tions

IP address set-

ting method

Specify in 4-digit hexadecimal the IP address setting method.

0000 hex: Fixed setting

00001 hex: Obtain from BOOTP server

0002 hex: Get from BOOTP server as fixed settings

0000 hex

IP address*1

*1. Specify 00000000 hex for any IP address setting method other than using a fixed IP address.

Specify in 8-digit hexadecimal the fixed IP addresses to set.

Setting range: 00000000 to DFFFFFFF hex

Example: C0A801C8 hex (192.168.1.200)

C0A801C8 hex

Subnet mask*1 Specify in 8-digit hexadecimal the subnet mask to set.

Setting range: FF000000 to FFFFFFFF hex

Example: FFFFFF00 hex (255.255.255.0)

FFFFFF00 hex

Gateway

address*1

Specify in 8-digit hexadecimal the gateway address to set.

Setting range: 00000000 to DFFFFFFF hex

Example: C0A801FE hex (192.168.1.254)

C0A801FE hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex B000 hex 0007 hex

7 - 55

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

• Error Response

Execution Examples

Execution to Set the Following TCP/IP Communications Conditions in the Reader/Writer

IP address setting method: Fixed, IP address: 192.168.1.200, Subnet mask: 255.255.255.0, Gate-

way address: 192.168.1.1

TX: 000000000015FF10B00000070E0000C0A801C8FFFFFF00C0A80101

RX: 000000000006FF10B0000007

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 56 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the TCP/IP communications conditions that are set in the

Reader/Writer.

Command Format

Response Formats

• Normal Response

*1. For any IP address setting method except for using a fixed address, 00000000 hex is returned.

GET TCP/IP COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex B000 hex 0007 hex

Parameter Description

tions.

Word count The number of words of the TCP/IP communications conditions to read (0007 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0011 hex FF hex 03 hex 0E hex

Byte-9 Byte-10 Byte-11 ... Byte-14 Byte-15 ... Byte-18 Byte-19 ... Byte-22

TCP/IP communications conditions

IP address setting

method

IP address Subnet mask Gateway address

2 bytes 4 bytes 4 bytes 4 bytes

Parameter Description Default setting

Byte count The number of bytes in the TCP/IP communications condi-

tions that were read (0E hex)

TCP/IP

commu-

nica-

tions

condi-

tions

IP address set-

ting method

Gives the IP address setting method that was read in 4-digit

hexadecimal.

0000 hex: Fixed setting

00001 hex: Obtain from BOOTP server

0002 hex: Get from BOOTP server as fixed settings

0000 hex

IP address*1 Gives the IP address that was read in 8-digit hexadecimal.

Example: C0A801C8 hex (192.168.1.200)

C0A801C8 hex

Subnet mask*1 Gives the subnet mask that was read in 8-digit hexadecimal.

Example: FFFFFF00 hex (255.255.255.0)

FFFFFF00 hex

Gateway

address*1

Gives the gateway address that was read in 8-digits hexa-

decimal.

Example: C0A801FE hex (192.168.1.254)

C0A801FE hex

7 - 57

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

• Error Response

Execution Examples

Execution When the Following TCP/IP Communications Conditions Are Set in the Reader/Writer

IP address setting method: Fixed, IP address: 192.168.1.200, Subnet mask: 255.255.255.0, Gate-

way address: 192.168.1.1

TX: 000000000006FF03B0000007

RX: 000000000011FF030E0000C0A801C8FFFFFF00C0A80101

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 58 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to set or clear a name for the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET DEVICE NAME

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0047 hex FF hex 10 hex B100 hex 0020 hex

Byte-12 Byte-13 ... Byte-76

Byte

count

Device name

40 hex 64 bytes

Parameter Description

Word count The number of words in the device name (0020 hex)

Byte count The number of bytes in the device name (40 hex)

Device name ASCII characters, 64 bytes max.

(63 ASCII characters max. + End code of 00 hex)

If there are fewer than 63 characters, the remaining bytes are filled with 00 hex.

The device name is given with ASCII characters 20 hex (space) to 7E hex (~).

Specify 00 hex for all bytes to clear the device name.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex B100 hex 0020 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 - 59

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Execution Examples

Execution to Set the Reader/Writer Device Name to V780-A001

TX: 000000000047FF10B10000204056363830532D413030310000000000…00

RX: 000000000006FF10B1000020

7 Modbus/TCP Communications

7 - 60 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the name that is set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When the Reader/Writer Device Name Is Set to V780-A001

TX: 000000000006FF03B1000020

RX: 000000000043FF034056363830532D413030310000000000…00

GET DEVICE NAME

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex B100 hex 0020 hex

Parameter Description

Word count The number of words in the device name (0020 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-72

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Device name

X X 0000 hex 0043 hex FF hex 03 hex 40 hex 64 bytes

Parameter Description

Byte count The number of words in the device name that was read (40 hex)

Device name The device name that was read is given with up to 64 bytes of ASCII characters (up

to 63 ASCII characters plus the end code (00 hex))

If there are fewer than 63 characters, the remaining bytes are filled with 00 hex.

The device name is given with ASCII characters 20 hex (space) to 7E hex (~).

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 61

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Function

This command sets the Modbus/TCP communications conditions of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET MODBUS/TCP COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex B200 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Modbus/TC com-

munications condi-

tions

Port number

02 hex 2 bytes

Parameter Description Default setting

Word count The number of words in the Modbus/TCP communications conditions (0001 hex)

Byte count The number of bytes in the Modbus/TCP communications conditions (02 hex)

Mod-

bus/TC

com-

muni-

cations

condi-

tions

Port

num-

ber

Specify the Modbus/TCP communications port number in 4-digit hexadeci-

mal.

Setting range: 01F6 hex or 0400 to FFFF hex

Example: 01F6 hex (502)

• IANA manages ports 000 to 03FF hex.

01F6 hex (502)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex B200 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 Modbus/TCP Communications

7 - 62 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution to Set the Following Modbus/TCP Communications Conditions in the Reader/Writer

Port number: 502

TX: 000000000009FF10B20000010201F6

RX: 000000000006FF10B2000001

7 - 63

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Function

This command is used to check the Modbus/TCP communications conditions of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When the Following Modbus/TCP Communications Conditions Are Set in the

Reader/Writer

Port number: 502

TX: 000000000006FF03B2000001

RX: 000000000005FF030201F6

GET MODBUS/TCP COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex B200 hex 0001 hex

Parameter Description Default set-

ting

Word count The number of words of the Modbus/TCP communications conditions to read (0001 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Modbus/TC com-

munications condi-

tions

Port number

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description

Byte count The number of bytes in the Modbus/TCP communications conditions that were

read (02 hex)

Modbus/TC

communica-

tions conditions

Port num-

ber

Gives the Modbus/TCP communications port number in 4-digit hexadecimal.

Example: 01F6 hex (502)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 64 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the Web browser communications conditions of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET WEB COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex B300 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Web communica-

tions conditions

Port number

02 hex 2 bytes

Parameter Description Default setting

Word count The number of words in the Web communications conditions (0001 hex)

Byte count The number of bytes in the Web communications conditions (02 hex)

Web

com-

muni-

cations

condi-

tions

Port

num-

ber

Specify the Web communications port number in 4-digit hexadecimal.

Setting range: 0400 to FFFF hex

Example: 1BB2 hex (7090)

• IANA manages ports 000 to 03FF hex.

1BB2 hex (7090)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex B300 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 65

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Execution Examples

Execution to Set the Following Web Communications Conditions in the Reader/Writer

Port number: 7090

TX: 000000000009FF10B3000001021BB2

RX: 000000000006FF10B3000001

7 Modbus/TCP Communications

7 - 66 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the Web browser communications conditions of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When the Following Web Communications Conditions Are Set in the Reader/Writer

Port number: 7090

TX: 000000000006FF03B3000001

RX: 000000000005FF03021BB2

GET WEB COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex B300 hex 0001 hex

Parameter Description

Word count The number of words of the Web communications conditions to read (0001 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Web communica-

tions conditions

Port number

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description

Byte count The number of bytes in the Web communications conditions that were read (02 hex)

Web com-

munica-

tions

conditions

Port num-

ber

Gives the Web communications port number that was read in 4-digit hexadecimal.

Example: 1BB2 hex (7090)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 67

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Function

This command sets or clears the Reader/Writer login password for the Web browser interface.

Command Format

Response Formats

• Normal Response

• Error Response

SET WEB PASSWORD

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0017 hex FF hex 10 hex B400 hex 0008 hex

Byte-12 Byte-13 ... Byte-28

Byte

count

Web password

10 hex 16 bytes

Parameter Description

Word count The number of words in the Web password (0008 hex)

Byte count The number of bytes in the Web password (10 hex)

Web password Specify the Web password with up to 16 bytes of ASCII characters (up to 15 ASCII characters

plus the end code (00 hex)).

If there are fewer than 15 characters, fill the remaining bytes with 00 hex.

You can specify ASCII characters 20 hex (space) to 7E hex (~).

To clear the password, specify 00 hex for all of the write data.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex B400 hex 0008 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 68 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Setting the Reader/Writer Web Password to “password”

TX: 000000000017FF10B40000081070617373776F72640000000000000000

RX: 000000000006FF10B4000008

7 - 69

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-5 Reader/Writer Setting Commands: Network Settings

Function

This command is used to check the login password that is set in the Reader/Writer for the Web

browser interface.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When the Reader/Writer Web Password Is Set to “password”

TX: 000000000006FF03B4000008

RX: 000000000013FF031070617373776F72640000000000000000

GET WEB PASSWORD

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex B400 hex 0008 hex

Parameter Description

Word count The number of words in the Web password (0008 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-24

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Web password

X X 0000 hex 0013 hex FF hex 03 hex 10 hex 16 bytes

Parameter Description

Byte count The number of bytes in the Web password that was read (10 hex)

Web password Gives the Web password that was read with up to 16 bytes of ASCII char-

acters (up to 15 ASCII characters plus the end code (00 hex)).

If there are fewer than 15 characters, the remaining bytes are filled with

00 hex.

The Web password is given with ASCII characters 20 hex (space) to 7E

hex (~).

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 70 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the communications conditions for the Reader/Writer.

Command Format

Response Formats

• Normal Response

7-6-6 Reader/Writer Setting Commands: Communications Settings

SET TAG COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0011 hex FF hex 10 hex C000 hex 0005 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18 Byte-19 Byte-20 Byte-21 Byte-22

Byte

count

Communications conditions

0A hex RF communica-

tions mode

RF communica-

tions speed

RF communica-

tions timeout time

Write verification Reserved

2 bytes 2 bytes 2 bytes 2 bytes 0000 hex

Parameter Description Default setting

tions

Word count The number of words in the RF communications conditions (0005 hex)

Byte count The number of bytes in the RF communications conditions (0A hex)

Commu-

nica-

tions

condi-

tions

RF communica-

tions mode

Specify the communications mode in 4-digit hexadecimal.

0000 hex: Once

0001 hex: Auto

0002 hex: Focus

0000 hex

RF communica-

tions speed

Specify the communications speed in 4-digit hexadecimal.

0000 hex: Automatic (default)

0001 hex: High speed

0002 hex: Normal speed

0000 hex

RF communica-

tions timeout time

Specify the RF communications timeout time.

0001 to EA60 hex (1 to 60,000 [ms])

00FA hex

(250)

Write verification Specify in 4-digit hexadecimal whether to perform write veri-

fication.

0000 hex: Disable, 0001 hex: Enable

0001 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C000 hex 0005 hex

Parameter Description

Word count The word count from the command is set.

7 - 71

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

• Error Response

Execution Examples

Execution to Set the Following RF Communications Conditions in the Reader/Writer

RF communications mode: Once, RF communications speed: Auto, RF communications timeout

time: 250 ms, Write verification: Enabled

TX: 000000000011FF10C00000050A0000000000FA00010000

RX: 000000000006FF10C0000005

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 72 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the RF communications conditions that are set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

GET TAG COMMUNICATIONS CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C000 hex 0005 hex

Parameter Description

conditions

Word count The number of words of the RF communications conditions to read (0005

hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 000D hex FF hex 03 hex 0A hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-1

3Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Communications conditions

RF communica-

tions mode

RF communica-

tions speed

RF communica-

tions timeout time

Write verification Reserved

2 bytes 2 bytes 2 bytes 2 bytes 0000 hex

Parameter Description Default setting

conditions

Word count The number of words in the RF communications conditions (0005 hex)

Byte count The number of bytes in the RF communications conditions (0A hex)

Communica-

tions conditions

RF communica-

tions mode

Gives the communications mode in 4-digit hexadeci-

mal.

0000 hex: Once

0001 hex: Auto

0002 hex: Focus

0000 hex

RF communica-

tions speed

Gives the communications speed in 4-digit hexadeci-

mal.

0000 hex: Automatic (default)

0001 hex: High speed

0002 hex: Normal speed

0000 hex

RF communica-

tions timeout time

Gives the RF communications timeout time.

0001 to EA60 hex (1 to 60,000 [ms])

00FA hex

(250)

Write verification Gives whether write verification is being performed in

4-digit hexadecimal.

0000 hex: Disable, 0001 hex: Enable

0001 hex

7 - 73

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

• Error Response

Execution Examples

Execution When the Following RF Communications Conditions Are Set in the Reader/Writer

RF communications mode: Once, RF communications speed: Auto, RF communications timeout

time: 250 ms, Write verification: Enabled

TX: 000000000006FF03C0000005

RX: 00000000000DFF030A0000000000FA00010000

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 74 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the transmission powers of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET TRANSMISSION POWER

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000B hex FF hex 10 hex C100 hex 0002 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16

Byte

count

Transmission power

04 hex Read transmis-

sion power

Write transmis-

sion power

2 bytes 2 bytes

Parameter Description Default setting

powers

Word count The number of words in the transmission power settings (0002 hex)

Byte count The number of bytes in the transmission power setting (04 hex)

Transmission

power

Read transmis-

sion power

Specify the transmission power for read RF communi-

cations commands in 4-digit hexadecimal.

000F to 001B hex (15 to 27 dBm)

001B hex

(27 [dBm])

Write transmis-

sion power

Specify the transmission power for write RF communi-

cations commands in 4-digit hexadecimal.

000F to 001B hex (15 to 27 dBm)

001B hex

(27 [dBm])

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C100 hex 0002 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 75

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Execution Examples

Execution to Set the Following Transmission Powers in the Reader/Writer

Read transmission power: 27 dBm, Write transmission power: 27 dBm

TX: 00000000000BFF10C100000204001B001B

RX: 000000000006FF10C1000002

7 Modbus/TCP Communications

7 - 76 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the transmission powers that are set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

Execution Examples

Execution When the Following RF Transmission Powers Are Set in the Reader/Writer

Read transmission power: 27 dBm, Write transmission power: 27dBm

TX: 000000000006FF03C1000002

RX: 000000000007FF0304001B001B

GET TRANSMISSION POWER

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C100 hex 0002 hex

Parameter Description

Word count The number of words of the antenna setting to read (0002 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0007 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12

Transmission powers

Read transmis-

sion power

Write transmis-

sion power

2 bytes 2 bytes

Parameter Description Default setting

Byte count The number of bytes in the transmission powers (06 hex)

Transmission

power

Read transmis-

sion power

Gives the transmission power for read RF communica-

tions commands in 4-digit hexadecimal.

000F to 001B hex (15 to 27 dBm)

001B hex

(27 [dBm])

Write transmis-

sion power

Gives the transmission power for write RF communica-

tions commands in 4-digit hexadecimal.

000F to 001B hex (15 to 27 dBm)

001B hex

(27 [dBm])

7 - 77

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Function

This command sets the channel in the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET CHANNEL

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex C200 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Channel

02 hex 2 bytes

Parameter Description Default setting

Channel Specify the channel in 4-digit hexadecimal.

0000 hex: Auto

0002 hex: Channel 2

0008 hex: Channel 8

000E hex: Channel 14

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C200 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 78 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution to Set Channel 2 for the Reader/Writer

TX: 000000000009FF10C2000001020002

RX: 000000000006FF10C2000001

7 - 79

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Function

This command is used to check the channel that is set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When Channel 2 Is Set for the Reader/Writer

TX: 000000000006FF03C2000001

RX: 000000000005FF03020002

GET CHANNEL

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C200 hex 1 byte

Parameter Description

channel

Word count Always 0001 hex.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Channel

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description Default setting

Field length Always 0005 hex.

Byte count Always 02 hex.

Channel Gives the channel in 4-digit hexadecimal.

0000 hex: Auto

0002 hex: Channel 2

0008 hex: Channel 8

000E hex: Channel 14

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 80 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the Gen2 session for the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET GEN2 SESSION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 009 hex FF hex 10 hex C300 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Gen2 Session

02 hex 2 bytes

Parameter Description Default setting

Word count The number of words in the Gen2 session setting (0001 hex)

Byte count The number of bytes in the Gen2 session setting (02 hex)

Gen2 session Specify the session to use for RF Tag communications in 4-digit

hexadecimal.

0000 hex: S0 flag

0001 hex: S1 flag

0002 hex: S2 flag

0003 hex: S3 flag

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Func-

tion code

X X 0000 hex 0006 hex FF hex 10 hex C300 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 81

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Execution Examples

Execution to Set S2 as the Gen2 Session for the Reader/Writer

TX: 000000000009FF10C3000001020002

RX: 000000000006FF10C3000001

7 Modbus/TCP Communications

7 - 82 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the Gen2 session that is set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When S2 Is Set as the Gen2 Session for the Reader/Writer

TX: 000000000006FF03C3000001

RX: 000000000005FF03020002

GET GEN2 SESSION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C300 hex 0001 hex

Parameter Description

setting

Word count The number of words in the Gen2 session setting to read (0001

hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Func-

tion code

Byte

count

Gen2 session

X X 0000 hex 0005 hex FF hex 03 hex 02 hex 2 bytes

Parameter Description Default setting

Byte count The number of bytes in the Gen2 session setting that was read (02 hex)

Gen2 session Gives the session that is being used for RF Tag communications in

4-digit hexadecimal.

0000 hex: S0 flag (default)

0001 hex: S1 flag

0002 hex: S2 flag

0003 hex: S3 flag

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 83

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Function

This command sets the access password for RF Tag communications of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET ACCESS PASSWORD

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000B hex FF hex 10 hex C400 hex 0002 hex

Byte-12 Byte-13 ... Byte-16

Byte

count

Access password

04 hex 4 bytes

Parameter Description Default setting

Access password Specify the access password to use for RF Tag communications in

8-digit hexadecimal.

The specified access password is stored in EEPROM memory in

the Reader/Writer.

If the access password in the RF Tag is not all zeros, the access

password that is stored in EEPROM memory must be used to exe-

cute LOCK, WRITE ID, READ DATA, or WRITE DATA commands.

00000000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C400 hex 0002 hex

Parameter Description

Word count Always 0002 hex.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 84 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution to Set the Reader/Writer Access Password to “12345678 hex”

TX: 00000000000BFF10C40000020412345678

RX: 000000000006FF10C4000002

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Function

This command reads the access password that is set for RF Tag communications in the

Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution When the Reader/Writer Access Password Is Set to “12345678 hex”

TX: 000000000006FF03C4000002

RX: 000000000007FF030412345678

GET ACCESS PASSWORD

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C400 hex 0002 hex

Parameter Description

password

Word count The number of words in the access password to read (0002 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-12

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Access password

X X 0000 hex 0007 hex FF hex 03 hex 04 hex 4 bytes

Parameter Description Default setting

Byte count The number of bytes in the access password (04 hex)

Access password Gives the access password to use for RF Tag communications in

8-digit hexadecimal.

The specified access password is stored in EEPROM memory in

the Reader/Writer.

If the access password in the RF Tag is not all zeros, the access

password that is stored in EEPROM memory must be used to exe-

cute LOCK, WRITE ID, READ DATA, or WRITE DATA commands.

00000000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 86 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the RF Tag selection filter conditions for the Reader/Writer.

Command Format

*1. If the RF Tag selection filter conditions settings are disabled, this value is always 0000 hex.

Response Formats

• Normal Response

SET RF TAG SELECTION FILTER CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 002D hex FF hex 10 hex C500 hex 0013 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18 Byte-19 ... Byte-50

Byte

count

RF Tag selection filter conditions

Enable/disable Address Data length Data

26 hex 2 bytes 2 bytes 2 bytes 32 bytes

Parameter Description Default setting

tion filter conditions

Word count The number of words in the RF Tag selection filter conditions (0013 hex)

Byte count The number of bytes in the RF Tag selection filter conditions (26 hex)

RF Tag selection

filter conditions

Enable/disable Specify whether to enable or disable RF Tag selection

filter conditions in 4-digit hexadecimal.

0000 hex: Disable

0001 hex: Enable

0000 hex

Address*1. Set the address (in words) of the RF Tag to check for in

4-digit hexadecimal.

Setting ranges (word address specifications)

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

*You cannot specify 0000 to 07FF hex (reserved area).

0000 hex

Data length*1. Specify the number of words of data to check in 4-digit

hexadecimal.

Setting range: 0000 to 0010 hex

0000 hex

Data*1. Specify the data to check for. (Always 16 words.)

*Fill unused data with 0000 hex.

*In compliance with Gen2 standards, bits 0 to 255 are

masked, so the last bit of word 16 (bit 256) is ignored.

00....00 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C500 hex 0013 hex

7 - 87

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

• Error Response

Execution Examples

Example 1: Execution When Enabling RF Tag Selection Filter Conditions for the Reader/Writer with

the Following Settings

Address: 3000 hex, Data length: 1 word, Data to check for: 1234 hex

TX: 00000000002DFF10C500001326000130000001123400…00

RX: 000000000006FF10C5000013

Example 2: Execution When Disabling RF Tag Selection Filter Conditions for the Reader/Writer

TX: 00000000002DFF10C50000132600000000000000000…00

RX: 000000000006FF10C5000013

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 88 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command reads the RF Tag selection filter conditions that are set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

*1. If the RF Tag selection filter conditions settings are being disabled, this value is always 0000 hex.

GET RF TAG SELECTION FILTER CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C500 hex 0013 hex

Parameter Description

selection filter conditions

Word count The number of words in the RF Tag selection filter conditions to

read (0013 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0028 hex FF hex 03 hex 26 hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14 Byte-15 ... Byte-46

RF Tag selection filter conditions

Enable/disable Address Data length Data

2 bytes 2 bytes 2 bytes 32 bytes

Parameter Description Default setting

Byte count The number of bytes in the RF Tag selection filter conditions (26 hex)

RF Tag selection

filter conditions

Enable/disable Gives whether RF Tag selection filter conditions are

enabled or disabled in 4-digit hexadecimal.

0000 hex: Disable

0001 hex: Enable

0000 hex

Address*1. Gives the address (in words) of the RF Tag to check for

in 4-digit hexadecimal.

1000 to 17FF hex: EPC area

2000 to 27FF hex: TID area

3000 to 37FF hex: User area

0000 hex

Data length*1. Gives the number of words of data to check in 4-digit

hexadecimal.

0000 to 0010 hex

0000 hex

Data*1. Gives the data to check for. (Always 16 words.)

*Unused data is filled with 0000 hex.

*In compliance with Gen2 standards, bits 0 to 255 are

masked, so the last bit of word 16 (bit 256) is ignored.

00....00 hex

7 - 89

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

• Error Response

Execution Examples

Execution When RF Tag Selection Filter Conditions for the Reader/Writer Are Enabled with the Fol-

lowing Settings

Address: 3000 hex, Data length: 1 word, Data to check: 1234 hex

TX: 000000000006FF03C5000013

RX: 000000000029FF0326000130000001123400…00

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 90 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the RSSI filter conditions for the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

SET RSSI FILTER CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000D hex FF hex 10 hex C600 hex 0003 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Byte

count

RSSI filter conditions

Enable/disable High threshold Low threshold

06 hex 2 bytes 2 bytes 2 bytes

Parameter Description Default setting

Word count The number of words in the RSSI filter conditions (0003 hex)

Byte count The number of bytes in the RSSI filter conditions (06 hex)

RSSI filter

conditions

Enable/disable Specify whether the RSSI filter is enabled or disabled in

4-digits hexadecimal.

0000 hex: Disable

0001 hex: Enable

0000 hex

High threshold*1

*1. When you disable the RSSI filter conditions, set the high and low thresholds to 0000 hex. When you enable

the RSSI filter, set the high threshold value for the reception level to a higher value than the low threshold level.

Otherwise, a command parameter error will occur.

Specify the high threshold for the reception level in signed

4-digit hexadecimal.

FFF6 to FFBA hex (0 or -70 to -10) [dBm]

0000 hex

Low threshold*1 Specify the low threshold for the reception level in signed

4-digit hexadecimal.

FFF6 to FFBA hex (0 or -70 to -10) [dBm]

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C600 hex 0003 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

7 - 91

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Execution Examples

Example 1: Execution When Enabling RSSI Filter Conditions for the Reader/Writer with the Follow-

ing Settings

High threshold: -40 dBm (FFD8 hex), Low threshold: -64 dBm (FFC0 hex)

TX: 00000000000DFF10C6000003060001FFD8FFC0

RX: 000000000006FF10C6000003

Example 2: Execution When Disabling RSSI Filter Conditions for the Reader/Writer

TX: 00000000000DFF10C600000306000000000000

RX: 000000000006FF10C6000003

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under Response Format for Error

Completion on page 7-7.

7 Modbus/TCP Communications

7 - 92 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the RSSI filter conditions that are set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

*1. If the RSSI filter conditions are disabled, the high and low threshold levels will always be 0000 hex.

• Error Response

GET RSSI FILTER CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C600 hex 0003 hex

Parameter Description

Word count The number of words in the RSSI filter conditions to read (0003 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0009 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14

RSSI filter conditions

Enable/disable High threshold Low threshold

2 bytes 2 bytes 2 bytes

Parameter Description Default setting

Byte count The number of bytes in the RSSI filter conditions (06 hex)

RSSI filter

conditions

Enable/dis-

able

Gives whether the RSSI filter is enabled or disabled in 4-dig-

its hexadecimal.

0000 hex: Disable

0001 hex: Enable

0000 hex

High threshold

Gives the RSSI high threshold level in signed 4-digit hexa-

decimal.

FFF6 to FFBA hex (0 or −70 to −10) [dBm]

0000 hex

Low threshold

Gives the RSSI low threshold level in signed 4-digit hexa-

decimal.

FFF6 to FFBA hex (0 or −70 to −10) [dBm]

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 93

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Execution Examples

Execution When RSSI Filter Conditions for the Reader/Writer Are Enabled with the Following Set-

tings

High threshold: -40 dBm (FFD8 hex), Low threshold: -64 dBm (FFC0 hex)

TX: 000000000006FF03C6000003

RX: 000000000009FF03060001FFD8FFC0

7 Modbus/TCP Communications

7 - 94 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the time to stop the transmission power.

Command Format

*1. If you set a stop time, do not set the continuous transmission time to 0000 hex (unlimited). A command

parameter error will occur if only the stop time or only the continuous transmission time is set to 0.

Response Formats

• Normal Response

• Error Response

SET TRANSMISSION TIME

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000B hex FF hex 10 hex C700 hex 0002 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16

Byte

count

Stop time Continuous trans-

mission time

04 hex 2 bytes 2 bytes

Parameter Description Default setting

Word count The number of words in the transmission time setting (0002 hex)

Byte count The number of bytes in the transmission time setting (04 hex)

Stop time

Specify the time to stop the output during RF communications com-

mand execution in 4-digit hexadecimal.

0000 hex or 000A to 03E8 hex

(0000 hex = None, or 10 to 1,000) [ms]

0000 hex

Continuous transmis-

sion time

Specify the maximum time to continuously output radio waves

during RF communications command execution in 4-digit hexadeci-

mal.

0000 hex or 0190 to 2710 hex

(0000 hex = Unlimited, or 400 to 10,000) [ms]

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex C700 hex 0002 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

7 - 95

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Execution Examples

Example 1: Execution to Set the Following Times in the Reader/Writer

Stop time: 10 ms (000A hex), Continuous transmission time: 400 ms (0190 hex)

TX: 00000000000BFF10C700000204000A0190

RX: 000000000006FF10C7000002

Example 2: Execution to Set the Following Times in the Reader/Writer

Stop time: None, Continuous transmission time: Unlimited

TX: 00000000000BFF10C70000020400000000

RX: 000000000006FF10C7000002

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 96 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the transmission times that are set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

GET TRANSMISSION TIME

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex C700 hex 0002 hex

Parameter Description

mission time settings

Word count Always 0002 hex.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0007 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12

Stop time Continuous trans-

mission time

2 bytes 2 bytes

Parameter Description Default setting

Field length Always 0007 hex.

Byte count The number of bytes in the transmission times to read (04 hex)

Stop time Gives the time that is set to stop the output during RF communica-

tions command execution in 4-digit hexadecimal.

0000 hex or 000A to 03E8 hex

(0000 hex = None, or 10 to 1,000) [ms]

0000 hex

Continuous transmis-

sion time

Gives the maximum time that is set to continuously output radio

waves during RF communications command execution in 4-digit

hexadecimal.

0000 hex, 0190 to 2710 hex (0000 hex: Unlimited, or 400 to 10,000)

[ms]

0000 hex

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identifier Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 97

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-6 Reader/Writer Setting Commands: Communications Settings

Execution Examples

Execution When the Following RF Transmission Times Are Set in the Reader/Writer

Stop time: 10 ms (000A hex), Continuous transmission time: 400 ms (0190 hex)

TX: 000000000006FF03C7000002

RX: 000000000007FF0304000A0190

7 Modbus/TCP Communications

7 - 98 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command sets the colors of the NORM/ERR indicators during command execution.

Command Format

*1. To prevent the NORM/ERR indicators from lighting at all during command execution, set all of the lighting

conditions to “Do not flash.” You cannot prevent them from lighting by setting only individual conditions.

7-6-7 Reader/Writer Setting Commands: Device Settings

SET OPERATION INDICATOR CUSTOM CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000D hex FF hex 10 hex B800 hex 0003 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18

Byte

count

Color to flash once

for normal com-

mand execution

Color to flash once

for command error

Color to flash once

for unstable com-

munications

06 hex 2 bytes 2 bytes 2 bytes

Parameter Description

tions

Word count The number of words in the operation indicator custom condition settings (0003 hex)

Byte count The number of bytes in the operation indicator custom condition settings (06 hex)

Color to flash once

for normal com-

mand execution

Specify the color to flash once when V780 command processing ends nor-

mally in 4-digit hexadecimal.

0000 hex: Default

0001 hex: Green

0002 hex: Red

0003 hex: Yellow

0004 hex: Blue

0005 hex: Cyan

0006 hex: Magenta

0007 hex: White

FFFF hex: Do not flash.*1

0000 hex

Color to flash once

for command error

Specify the color to flash once when V780 command processing ends in an

error in 4-digit hexadecimal.

*The color settings are they same as for flashing once for normal command

completion, given above.

0002 hex

Color to flash once

for unstable com-

munications

Specify the color to flash once when the results of executing communica-

tions diagnostics indicates that communications are unstable in 4-digit hexa-

decimal.

*The colors settings are they same as for flashing once for normal command

completion, given above.

0003 hex

7 - 99

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-7 Reader/Writer Setting Commands: Device Settings

Precautions for Correct Use

If you set all of the conditions to “Do not flash,” the NORM/ERR indicators will not light at all

even during operation in Focus Mode.

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution to Set Operation Indicator Custom Conditions for the Reader/Writer

Example 1: Execution to Change to the Following Colors for the NORM/ERR Indicators during Com-

mand Execution

Normal completion: Cyan, Error completion: Magenta, Unstable communications: White

TX: 00000000000DFF10B800000306000500060007

RX: 000000000006FF10B8000003

Example 2: Execution to Change the NORM/ERR Indicators to Not Light at All during Command

Execution

TX: 00000000000DFF10B800000306FFFFFFFFFFFF

RX: 000000000006FF10B8000003

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex B800 hex 0003 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 100 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the NORM/ERR indicator lighting colors for communications results

that are set in the Reader/Writer.

Command Format

Response Formats

• Normal Response

GET OPERATION INDICATOR CUSTOM CONDITIONS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex B800 hex 0003 hex

Parameter Description Default setting

settings

Word count The number of words in the operation indicator custom conditions to read (0003

hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0009 hex FF hex 03 hex 06 hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-13 Byte-14

Color to flash once

for normal com-

mand execution

Color to flash once

for command error

Color to flash once

for unstable com-

munications

2 bytes 2 bytes 2 bytes

Parameter Description

Byte count The number of bytes in the operation indicator custom settings (06 hex)

Color to flash once

for normal com-

mand execution

Gives the color to flash once when V780 command processing ends nor-

mally in 4-digit hexadecimal.

0001 hex: Green

0002 hex: Red

0003 hex: Yellow

0004 hex: Blue

0006 hex: Magenta

0007 hex: White

FFFF hex: Do not flash.

0001 hex

Color to flash once

for command error

Gives the color to flash once when V780 command processing ends in an

error in 4-digit hexadecimal.

*The colors settings are they same as for flashing once for normal command

completion, given above.

0002 hex

Color to flash once

for unstable com-

munications

Gives the color to flash once when the results of executing communications

diagnostics indicates that communications are unstable in 4-digit hexadeci-

mal.

*The colors settings are they same as for flashing once for normal command

completion, given above.

0003 hex

7 - 101

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-7 Reader/Writer Setting Commands: Device Settings

• Error Response

Execution Examples

Execution When the Following NORM/ERR Indicator Lighting Colors Are Set for Command Execu-

tion by the Reader/Writer

Normal completion: Green, Error completion: Red, Unstable communications: Yellow

TX: 000000000006FF03B8000003

RX: 000000000009FF0306000100020003

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 102 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the model number of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

7-6-8 Maintenance Commands: Device Information

GET MODEL INFORMATION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D000 hex 0010 hex

Parameter Description

Word count The number of words in the model number information to read (0010 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-40

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Model information

X X 0000 hex 0023 hex FF hex 03 hex 20 hex 32 bytes

Parameter Description

Byte count The number of bytes in the model number information that was read (20 hex)

Model information Gives the model information that was read with up to 32 bytes of ASCII characters

(up to 31 ASCII characters plus the end code (00 hex)).

If there are fewer than 31 characters, the remaining bytes are filled with 00 hex.

The model number is given with ASCII characters 20 hex (space) to 7E hex (~).

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 103

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-8 Maintenance Commands: Device Information

Execution Examples

Execution to Read the Model Number When a V780-HMD68-ETN Reader/Writer Is Being Used

TX: 000000000006FF03D0000010

RX:

000000000023FF0320563738302D484D4436382D45544E0000000000000000000000000000000

00000

7 Modbus/TCP Communications

7 - 104 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command reads the firmware version of the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

GET FIRMWARE VERSION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D100 hex 0006 hex

Parameter Description

Word count The number of words in the firmware version information to read (0006 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 000F hex FF hex 03 hex 0C hex

Byte-9 Byte-10 Byte-11 Byte-12 Byte-1

3Byte-14 Byte-15 Byte-16 Byte-17 Byte-18 Byte-19 Byte-20

Firmware version

Major version of

Run Mode pro-

gram

Minor version of

Run Mode pro-

gram

Run Mode pro-

gram revision

Major version of

Safe Mode program

Minor version of

Safe Mode pro-

gram

Safe Mode pro-

gram revision

2 bytes 2 bytes 2 bytes 2 bytes 2 bytes 2 bytes

Parameter Description

Byte count The number of bytes in the firmware version information (0C hex)

Firmware version Major version of Run

Mode program

0000 to 0099 hex (BCD)

Minor version of Run

Mode program

0000 to 0099 hex (BCD)

Run Mode program revi-

sion

0000 to 9999 hex (BCD)

Major version of Safe

Mode program

0000 to 0099 hex (BCD)

Minor version of Safe

Mode program

0000 to 0099 hex (BCD)

Safe Mode program revi-

sion

0000 to 9999 hex (BCD)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion

code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

7 - 105

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-8 Maintenance Commands: Device Information

Execution Examples

Execution with the Following Firmware Versions in the Reader/Writer

Run Mode program version: 1.2.3, Safe Mode program version: 1.2.2

TX: 000000000006FF03D1000006

RX: 00000000000FFF030C000100020003000100020002

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 106 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Function

This command is used to check the MAC address from the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

Execution Examples

Execution to Read a MAC Address of “11-22-33-44-55-66” from the Reader/Writer

TX: 000000000006FF03D2000003

RX: 000000000009FF0306112233445566

GET MAC ADDRESS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D200 hex 0003 hex

Parameter Description

Word count The number of words in the MAC address to read (0003 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-14

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

MAC address

X X 0000 hex 0009 hex FF hex 03 hex 06 hex 6 bytes

Parameter Description

Byte count The number of bytes in the MAC address that was read (06 hex)

MAC address Gives the MAC address that was read as a 12-digit hexadecimal between

000000000000 and FFFFFFFFFFFF hex.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 107

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-8 Maintenance Commands: Device Information

Function

This command is used to check the operating status from the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

GET OPERATING STATUS

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D300 hex 0002 hex

Parameter Description

Word count The number of words in the Reader/Writer operating status to read (0002 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0007 hex FF hex 03 hex 04 hex

Byte-9 Byte-10 Byte-11 Byte-12

Reader/Writer operating status

Mode Status

2 bytes 2 bytes

Parameter Description

Byte count The number of bytes in the Reader/Writer operating status that was read

(0C hex)

Reader/Writer

operating status

Mode Gives the mode of the Reader/Writer that was read in 4-digits hexadeci-

mal.

0000 hex: Safe Mode

0001 hex: Run Mode

Status Gives the status of the Reader/Writer that was read in 4-digits hexadeci-

mal.

0001 hex: Idling

0002 hex: RF Tag communications in progress

0003 hex: Changing settings

0004 hex: Error

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion

code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

7 Modbus/TCP Communications

7 - 108 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution with the Following Reader/Writer Operating Status

Mode: Run Mode, Status: Idling

TX: 000000000006FF03D3000002

RX: 000000000007FF030400010001

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 109

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-8 Maintenance Commands: Device Information

Function

This command is used to check the time information from the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

GET TIME INFORMATION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D400 hex 0002 hex

Parameter Description

Word count The number of words in the time information to read (0002 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 ... Byte-12

Transaction

identifier

Protocol identi-

fier

Field length Unit

identifier

Function

code

Byte

count

Time information

X X 0000 hex 0007 hex FF hex 03 hex 04 hex 4 bytes

Actual

time

flag:*1

0/1

Hour: 0

to 23

Minutes:

0 to 59

Sec-

onds: 0

to 59

byte

Parameter Description

Byte count The number of bytes in the time information that was read (04 hex)

Time information Gives the time information that is managed inside the Reader/Writer in 4-digit hexa-

decimal.

*1 This byte indicates whether the actual time was set from the host device.

0: The time has not been set, so the time information gives the running time since

the power supply to the Reader/Writer was turned ON.

1: The time was set, so the time information is the running time from the time set

from the host device.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 110 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution When the Time Information in the Reader/Writer Is 09:30:10

TX: 000000000006FF03D4000002

RX: 000000000007FF030400091E0A

7 - 111

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-8 Maintenance Commands: Device Information

Function

This command sets the time information in the Reader/Writer.

When the Reader/Writer is restarted, the time information is reset. (All zeros will be set for the actual

time flag, hour, minutes, and seconds.)

Command Format

Response Formats

• Normal Response

• Error Response

SET TIME INFORMATION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Command Format Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 000B hex FF hex 10 hex D400 hex 0002 hex

Byte-12 Byte-13 Byte-14 Byte-15 Byte-16

Byte

count

Time information

Reserved Hour: 0

to 23

Minutes:

0 to 59

Sec-

onds: 0

to 59

04 hex 1 byte 1 byte 1 byte 1 byte

Parameter Description

Word count The number of words of time information (0002 hex)

Byte count The number of bytes of time information (04 hex)

Time information The time to set in the Reader/Writer in 8-digit hexadecimal.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex D400 hex 0002 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 112 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution to Set the Time Information in the Reader/Writer to 09:30:10

TX: 00000000000BFF10D40000020400091E0A

RX: 000000000006FF10D4000002

7 - 113

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-9 Maintenance Commands: Log Information

Function

This command is used to check the log of system errors that have occurred in the Reader/Writer.

The system error log is retained even when the Reader/Writer is restarted.

Command Format

Response Formats

• Normal Response

7-6-9 Maintenance Commands: Log Information

GET SYSTEM ERROR LOG

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D600 hex 0079 hex

Parameter Description

Word count The number of words in the system error log information to read (0079 hex)

Parameter Description

Byte count The number of bytes in system error log (F2 hex)

Number of records Gives the number of records in the valid data of the system error log.

Newest record

in system error

log

Time information Gives the time information in 8-digit hexadecimal

(actual time flag, hour, minutes, and seconds).

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

Reserved (Reserved for future use as error device information.)

Attached information 1 Additional error information 1 (00 hex if there is no attached information)

Attached information 2 Additional error information 2 (00 hex if there is no attached information)

Newest record

− 1 in system

error log

--- ---

... ... ...

Newest record

− 14 in system

error log

--- ---

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Number of records

X X 0000 hex 00F5 hex FF hex 03 hex F2 hex 1 word

Byte-11 ... Byte-26 Byte-27 ... Byte-42 ...

Byte-235

...

Byte-250

Newest record in system

error log

Newest record - 1 in system

error log

... Newest record - 14 in system

error log

16 bytes 16 bytes ... 16 bytes

Time information Error code Reserved Attached information 1 Attached information 2

4 bytes 2 bytes 2 bytes 4 bytes 4 bytes

7 Modbus/TCP Communications

7 - 114 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response

Execution Examples

Execution with the Following System Error Log in the Reader/Writer

TX: 000000000006FF03D6000079

RX: 0000000000F5FF03F2000201091F1E80110000000000000000000001091E0A8012

0000000000000000.....00

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

Number of

records

Newest record Time information: 09:31:30, Error code: 8011 hex (IP address conflict), Attached infor-

mation: None

Newest record − 1 Time information: 09:30:10, Error code: 8012 hex (BOOTP server connection failed),

Attached information: None

7 - 115

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-9 Maintenance Commands: Log Information

Function

This command clears the log of system errors (fatal errors) that is stored in the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

CLEAR SYSTEM ERROR LOG

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0009 hex FF hex 10 hex D700 hex 0001 hex

Byte-12 Byte-13 Byte-14

Byte

count

Clear type

02 hex 2 bytes

Parameter Description

mation

Word count The number of words for system error log clear (0001 hex)

Byte count The number of bytes for system error log clear (02 hex)

Clear type 0000 hex: Clear all

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 10 hex D700 hex 0001 hex

Parameter Description

Word count The word count from the command is set.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

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Execution Examples

Execution to Clear the System Error Log in the Reader/Writer

TX: 000000000009FF10D7000001020000

RX: 000000000006FF10D7000001

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-9 Maintenance Commands: Log Information

Function

This command is used to check the log of command errors that have occurred in the Reader/Writer.

The command error log information is cleared when the Reader/Writer is restarted.

Command Format

Response Formats

• Normal Response

GET COMMAND ERROR LOG

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D800 hex 0061 hex

Parameter Description

Word count The number of words in the command error log to read (0061 hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

Number of records

X X 0000 hex 00C5 hex FF hex 03 hex C2 hex 2 bytes

Byte-11 ... Byte-34 Byte-35 ... Byte-58 ... Byte-179 ... Byte-202

Newest record in the command

error log

Newest record - 1 in the com-

mand error log

... Newest record -7 in the command

error log

24 bytes 24 bytes ... 24 bytes

Time information IP address of the

remote device

Transaction identi-

fier Command code Error code

4 bytes 4 bytes 2 bytes 2 bytes 2 bytes

Reserved Attached information 1 Attached information 2

2 bytes 4 bytes 4 bytes

Parameter Description

Number of records Gives the number of records in the valid data of the system error log.

Newest record in

the command

error log

Time information Gives the time information in 8-digit hexadecimal

(actual time flag, hour, minutes, and seconds).

IP address of the

remote device

Gives the IP address that was read in 8-digit hexadecimal.

Example: C0A801C8 hex (192.168.1.200)

Transaction iden-

tifier

The transaction identifier specified in the command that produced the

error

Command code Gives the command code in 8-digit hexadecimal.

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

Reserved (Reserved for future use as error device information.)

Attached infor-

mation 1

Gives additional information 1 on the error in 16-digit hexadecimal.

Attached infor-

mation 2

Gives additional information 2 on the error in 16-digit hexadecimal.

7 Modbus/TCP Communications

7 - 118 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response

Execution Examples

Execution with the Following Command Error Log in the Reader/Writer

TX: 000000000006FF03D8000061

RX: 0000000000C5FF03C2000201091F1EC0A80178000000041005000000000000000

0000001091E0AC0A801780000000320040000000000000000…00

Newest record -

1 in the com-

mand error log

--- ---

... ... ...

Newest record -7

in the command

error log

--- ---

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

Number of

records

Newest record

Time information: 09:31:30, IP address: 192.168.1.121, Command code: 0004 hex

(WRITE DATA), Error code: 1005 hex (command parameter error), Attached informa-

tion: None

Newest record - 1 Time information: 09:30:10, IP address: 192.168.1.120, Command code: 0003 hex

(READ DATA), Error code: 2004 hex (address error), Attached information: None

Parameter Description

7 - 119

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-9 Maintenance Commands: Log Information

Function

This command is used to check the most recent command error information from the Reader/Writer.

The most recent command error information is cleared when the Reader/Writer is restarted.

Command Format

Response Formats

• Normal Response

GET MOST RECENT COMMAND ERROR INFORMATION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex D900 hex 000C hex

Parameter Description

error information

Word count The number of words in the most recent command error information to read (000C

hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 001B hex FF hex 03 hex 18 hex

Byte-9 ... Byte-12 Byte-13 ... Byte-16 Byte-17 Byte-18 Byte-19 Byte-20 Byte-21 Byte-22

Most recent command error information

Time information IP address of the remote

device

Transaction identifier Command code Error code

4 bytes 4 bytes 2 bytes 2 bytes 2 bytes

Byte-23 Byte-24 Byte-25 Byte-26 Byte-27 Byte-28 Byte-29 Byte-30 Byte-31 Byte-32

Most recent command error information

Reserved Attached information 1 Attached information 2

2 bytes 4 bytes 4 bytes

Parameter Description

Byte count The number of bytes in the most recent command error information that

was read (18 hex)

Most recent com-

mand error infor-

mation

Time information Gives the time information in 8-digit hexadecimal

IP address of the

remote device

Gives the IP address that was read in 8-digit hexadecimal.

Example: C0A801C8 hex (192.168.1.200)

Transaction iden-

tifier

The transaction identifier specified in the command that produced the

error

Command code Gives the command code in 8-digit hexadecimal.

Error code For details, refer to ?9-2-1 ?????? (P.9-3)?.

Reserved (Reserved for future use as error device information.)

Attached infor-

mation 1

Gives additional information 1 on the error in 8-digit hexadecimal.

Attached infor-

mation 2

Gives additional information 2 on the error in 8-digit hexadecimal.

7 Modbus/TCP Communications

7 - 120 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

• Error Response

Execution Examples

Execution with the Following Most Recent Command Error Information in the Reader/Writer

Time information: 09:31:30, IP address: 192.168.1.121, Command code: 0004 hex (WRITE DATA),

Error code: 1005 hex (command parameter error), Attached information: None

TX: 000000000006FF03D900000C

RX:

00000000001BFF031801091F1EC0A8017800000004100500000000000000000000

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 - 121

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-10 Maintenance Commands: RF Communications Information

Function

This command us used to check the attached information (i.e., the EPC code and reception level)

that resulted from communications for a single-access command with the immediately preceding RF

Tag .

If communications for the immediately preceding single-access command ended in an error,

attached information of 00 hex will be returned.

Command Format

Response Formats

• Normal Response

7-6-10 Maintenance Commands: RF Communications Information

GET RF TAG ADDITIONAL INFORMATION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex DA00 hex 0021 hex

Parameter Description

communications

Word count Always 0021 hex.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0045 hex FF hex 03 hex 42 hex

Byte-9 Byte-10 Byte-11 ... Byte-72 Byte-73 Byte-74

StoredPC EPC code Reception level

2 bytes 62 bytes 2 bytes

Parameter Description

StoredPC Gives the StoredPC data in 4-digit hexadecimal.

The upper 5 bits are the EPC word length.

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the StoredPC

are filled with 00 hex.

Reception level Gives the reception level in signed hexadecimal.

FFFF to FF9D hex (-1 to -99) [dBm]

7 Modbus/TCP Communications

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• Error Response

Execution Examples

Execution for the Following Attached Information as the Results of Reader/Writer Communications

with the Immediately Preceding RF Tag

StoredPC: 3000 hex, EPC code: 111122223333444455556666 hex, Reception level: -27 (FFE5 hex)

TX: 000000000006FF03DA000021

RX: 000000000045FF0342300011112222333344445555666600…00FFE5

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion

code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-10 Maintenance Commands: RF Communications Information

Function

This command measures the ambient noise level around the Reader/Writer.

Command Format

Response Formats

• Normal Response

• Error Response

GET NOISE LEVEL

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex DB00 hex 000F hex

Parameter Description

Word count Always 000F hex.

The noise information for channels 1 to 15 is read at the same time.

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 0021 hex FF hex 03 hex 1E hex

Byte-9 Byte-10 ... Byte-37 Byte-38

Channel 1 noise

level

... Channel 15 noise

level

2 bytes ... 2 bytes

Parameter Description

Channel 1 noise level Gives the noise level for channel 1 in signed 2-digit hexadecimal.

FFFF to FF9D hex (-1 to -99) [dBm]

... ...

Channel 15 noise level Gives the noise level for channel 15in signed 2-digit hexadecimal.

FFFF to FF9D hex (-1 to -99) [dBm]

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 83 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 124 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

Execution Examples

Execution When the Reader/Writer Measures the Following Noise Levels

Channel 1 noise level: -40 dBm (FFD8 hex), Channel 2 noise level: -77 (FFB3 hex), … , Channel 15

noise level: -77(FFB3 hex)

TX: 000000000006FF03DB00000F

RX: 000000000021FF031EFFD8FFB3…FFB3

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7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-10 Maintenance Commands: RF Communications Information

Function

This command gets the most recent communications diagnostic information.

Command Format

Response Formats

• Normal Response

GET COMMUNICATIONS DIAGNOSTIC INFORMATION

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8 Byte-9 Byte-10 Byte-11

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

X X 0000 hex 0006 hex FF hex 03 hex DC00 hex 002E hex

Parameter Description

mation

Word count The number of words in the communications diagnostic information to read (002E

hex)

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit

identifier

Function

code

Byte

count

X X 0000 hex 005F hex FF hex 03 hex 5C hex

Byte-9 ... Byte-88

Most recent communications

diagnostic information

92 bytes

Byte-9 ... Byte-12 Byte-13 Byte-14 Byte-15 Byte-16 Byte-17 Byte-18 Byte-19 Byte-20

Communications diagnostic information

Time information Command code Error code Diagnostic results Detailed diagnos-

tic results

4 bytes 2 bytes 2 bytes 2 bytes 2 bytes

Byte-21 Byte-22 Byte-23 Byte-24 Byte-25 Byte-26 Byte-27 Byte-28 Byte-29 Byte-30 Byte-31 Byte-32

Communications diagnostic information

Reserved 1 Reserved 2 Reserved 3 Reserved 4 Reception level Noise level

2 bytes 2 bytes 2 bytes 2 bytes 2 bytes 2 bytes

Byte-33 Byte-34 Byte-35 Byte-36 Byte-37 Byte-38 Byte-39 ... Byte-100

Communications diagnostic information

Reserved 5 Reserved 6 Stored PC EPC code

2 bytes 2 bytes 2 bytes 62 bytes

7 Modbus/TCP Communications

7 - 126 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

*1. All of the most recent communications diagnostic information will be 00 hex if communications diagnostics

are disabled.

*2. This data is output for diagnostic processing only in Focus Mode. It is not output in any other mode.

Parameter Description

Byte count The number of bytes in the most recent communications diagnosis infor-

mation (5C hex)

Most recent com-

munications diag-

nostic information

Time informa-

tion

Gives the time information in 8-digit hexadecimal

(actual time flag, hour, minutes, and seconds).

Command code Gives the command code in 8-digit hexadecimal.

Error code For details, refer to Exception Code on page 7-7 under Response Format

for Error Completion on page 7-7.

Diagnostic

results

Gives the diagnostic results in 4-digit hexadecimal.

FFFF hex: Error (Set when the error code is not normal.)

0000 hex: Normal

0001 hex: Insufficient power to send

0002 hex: Insufficient power to receive

0003 hex: Too much noise

0005 hex: Insufficient read data (Diagnostic processing for these results

is performed only in Focus Mode.)

0006 hex: Excessive read data (Diagnostic processing for these results is

performed only in Focus Mode.)

Diagnostic

details

Gives the diagnostic details in 4-digit hexadecimal.

Bit 0: Insufficient power to send flag

Bit 1: Insufficient power to receive flag

Bit 2: Too much noise

Bit 3: Reserved

Bit 4: Insufficient data read flag

Bit 5: Excessive data read flag

Bits 6 to 15: Reserved (all zeros)

*Bits 4 and 5 are output for diagnostic processing only in Focus Mode.

They are not output in any other mode.

Reserved 1 to 4 0000 hex: No specifications

Reception level Gives the reception level in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99) [dBm]

Noise level Gives the noise level in signed 4-digit hexadecimal.

FFFF to FF9D hex (-1 to -99) [dBm]

Reserved 5 and

0000 hex: No specifications

Stored PC Gives the StoredPC data of the RF Tag for diagnostics in 4-digit hexadec-

imal.

The upper 5 bits are the EPC word length.

EPC code Gives the Tag-specific information according to Gen2 standards.

All bytes of the EPC code section that exceed the EPC word length in the

StoredPC are filled with 00 hex.

7 - 127

7 Modbus/TCP Communications

UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

7-6 V780 Command Details

7-6-10 Maintenance Commands: RF Communications Information

• Error Response

Execution Examples

Execution with the Following Most Recent Communications Diagnostic Information in the

Reader/Writer

Time information: 09:31:30, Command code: 0003 hex (READ DATA), Error code: 0000 hex (nor-

mal), Diagnostic results: Insufficient power to send (0001 hex), Diagnostic details: Insufficient power

to send + Insufficient power to receive (0003 hex), Reception level: -41 dBm (FFD7 hex), Noise

level: -70 dBm (FFBA hex), EPC code: 11…11

TX: 000000000006FF03DC00002E

RX: 00000000005FFF035C 01091F1E 0003 0000 0001 0003 0000000000000000 FFD7

FFBA 00000000 30001111…11110000…0000

Byte-0 Byte-1 Byte-2 Byte-3 Byte-4 Byte-5 Byte-6 Byte-7 Byte-8

Transaction identi-

fier

Protocol identifier Field length Unit iden-

tifier

Function

code

Excep-

tion code

X X 0000 hex 0003 hex FF hex 90 hex 1 byte

Parameter Description

Exception code For details, refer to Exception Code on page 7-7 under 7-2-3 Response Format for

Error Completion on page 7-7.

7 Modbus/TCP Communications

7 - 128 UHF RFID System V780-series Reader/Writer User’s Manual (Z389)

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