Accu Sort Systems RFR-02 RFID SYSTEM User Manual RFR02 Installation Guide

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Document Title	RFR02 Installation Guide
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RFR-02
Installation Guide
iii
RFR-02 Installation Guide
RFR-02 Reader Installation Guide Revision 1.0
PN 1000062805 1.0 | CMS 06-0119 | 2006.06.28 | RAY
Document Revision Control
This document is under revision control in accordance with AccuSort’s Quality System. Any addenda or other documents associated
with this manual are under separate revision controls. A revision
number is changed by 0.1 whenever technical information is changed
or added to a document.
Copyright Information
Copyright © 2002-2006 ACCU-SORT® SYSTEMS, INC. All rights
reserved.
No part of this document is to be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying,
recording, or by an information storage and retrieval system without
prior written consent of Accu-Sort Systems, Inc. All drawings and
specifications contained in this manual are the property of Accu-Sort
Systems, Inc. and shall not be reproduced, copied or used in whole or
in part as the basis for the sale or manufacture of products without the
written permission.
Accu-Sort® and the AS logotype are registered trademarks of AccuSort® Systems, Inc.
All other company or product names are mentioned for purposes of
identification only, and may be trademarks of their respective owners.
Disclaimer Information
The information contained in this manual is subject to change without
notice.
Supplemental information or documentation may be required for
certain applications or usage.
The examples and diagrams in this manual are included solely for
illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Accu-Sort
cannot assume responsibility or liability for actual use based on the
examples and diagrams.
No patent liability is assumed by Accu-Sort with respect to use of
information, circuits, equipment, or software described in this manual.
In no event will ACCU-SORT® SYSTEMS, INC. be responsible or
liable for indirect or consequential damages resulting from the use or
application of this equipment.
Accu-Sort Systems, Inc. 511 School House Rd. Telford, PA 18969
1-877-ASI-RFID
Accu-Sort Systems, Inc.
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RFR-02 Installation Guide
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Table of Contents
Table of Contents
RFR-02 .......................................................................................................................................1
Installation Guide .....................................................................................................................1
Table of Contents .....................................................................................................................v
Preface.......................................................................................................................................1
General Precautions................................................................................................................... 1
Installation Notes........................................................................................................................ 1
Warnings.................................................................................................................................... 1
Disclaimer .................................................................................................................................. 1
Software Version........................................................................................................................ 1
Approvals ................................................................................................................................... 2
Product Specifications.............................................................................................................3
Physical Features....................................................................................................................... 3
Performance Features................................................................................................................ 4
Wiring and Cable Pin Diagrams ................................................................................................. 5
1. Setup Port (DB9 FEMALE) ................................................................................................................6
2. RS232/RS422 Communications Port (DB9 FEMALE) ......................................................................7
3. Power Connector (Turck 4 Pin Male EuroFast # FSFD4.4-0.5) ........................................................8
4. Trigger Input 1 (Upper Connector – Turck 5 Pin Female Eurofast
5. Trigger Input 2 (Lower Connector – Turck 5 Pin Female
#FKFDW4.5-0.5) .................8
Eurofast #FKFDW4.5-0.5) ..................9
6. Output Connector (Turck 4 Pin Female EuroFast #FKFD4.4-0.5) ....................................................9
7. Antenna 1 Port (BNC Female).........................................................................................................10
8. Antenna 2 Port (BNC Female).........................................................................................................10
Installation Requirements......................................................................................................11
Power....................................................................................................................................... 11
Antennas.................................................................................................................................. 11
Approved Antenna Choices: ................................................................................................................11
Inputs 1 and 2 .......................................................................................................................... 12
Outputs 1 and 2........................................................................................................................ 12
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Table of Contents
RFR-02 Installation Guide
Reader Mounting Dimensions .................................................................................................. 13
Antenna Mounting .................................................................................................................... 15
General Guidelines ..............................................................................................................................15
Antenna Mounting Example.................................................................................................................16
Modes of Operation................................................................................................................19
Setup Mode.............................................................................................................................. 20
Entering Setup Mode ...........................................................................................................................20
Setup Mode Parameters......................................................................................................................21
Output Message Format........................................................................................................... 31
Response Format with Valid Tag Data Being Read ............................................................................31
Response Format Error Messages......................................................................................................31
ISO Flag Byte Definition ......................................................................................................................32
Trigger Mode............................................................................................................................ 33
Trigger Mode Examples.......................................................................................................................33
Serial Command Mode............................................................................................................. 41
Serial Mode Commands ......................................................................................................................43
Serial Mode Read Rate Diagnostic Commands ..................................................................................57
Quick Reference Command Chart............................................................................................ 60
Using the RFR-02 Setup Program .........................................................................................61
Using the Software................................................................................................................... 61
System Setup.......................................................................................................................................62
Reader Setup.......................................................................................................................................64
Upgrading the RFR-02 Firmware.............................................................................................. 73
Timing for reading data from Tag ............................................................................................. 75
Timing for writing data to Tag ................................................................................................... 75
Troubleshooting .....................................................................................................................77
Glossary ..................................................................................................................................79
Appendix A: ASCII Chart..........................................................................................................1
Revision History .......................................................................................................................1
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Preface
Preface
General Precautions
All service should be performed so as not to violate any compliance.
Use shielded cable with the unit. Before performing any maintenance,
turn off power to the unit and disconnect the power cord. Routinely
check cabling, if a cable is damaged, replace it immediately. Check
mounting structure for tightness and stability. Ensure the power outlet
connected to the unit is properly grounded. Do not apply power to the
unit until all components are properly cabled and grounded.
Installation Notes
Only Accu-Sort System, Inc. employees or individuals that have been
authorized by Accu-Sort Systems, Inc. should install this device.
Warnings
WARNING: Use of any antenna other then ones supplied
with the equipment, or modifications not expressly
approved by the party responsible for compliance could
void the user’s authority to operate the equipment.
WARNING: This device must be installed in a location
that is not accessible to the general public. Install the
device so that the antenna is at least 25 centimeters from
unsuspecting personnel. Failure to install this device as
described will result in a failure to comply with FCC rules
for RF exposure and is discouraged.
Disclaimer
Operation of any radio transmitting equipment, including this product,
may interfere with the functionality of inadequately protected medical
devices. Consult a physician or the manufacturer of the medical
device if you have any questions. Other electronic equipment may
also be subject to interference.
Software Version
This document refers to software version R02STD06 and later
versions. This information may not be valid for earlier versions of the
RFR-02 software.
Accu-Sort Systems, Inc.
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Preface
RFR-02 Installation Guide
Approvals
The RFR-02 Reader and its associated antennas and Power Supply
is approved (or is pending) by the appropriate regulatory agencies.




FCC, Part 15
UL
cUL
CE
NOTE: This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received,
including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to
comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference
when the equipment is operated in a commercial
environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and
used in accordance with the Installation Manual, may
cause harmful interference in which case the user will be
required to correct the interference at his or her own
expense.
NOTE: Changes or modifications not expressly approved
by the party responsible for compliance could void the
user’s authority to operate the equipment.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Product Specifications
Product Specifications
Physical Features
Enclosure

Cast Aluminum
Size



Length: 6.67”
Width: 4.70”
Height: 2.10”
Cabling

App. Specific (does not contribute to length, height or width)
Mounting

See Mounting Instructions
Visual Diagnostics




Power LED (red)
Indicates unit is powered
RX LED (green)
Indicates data received from Host
Tag LED (blue)
Indicates data received from Tag
Ant. LED (yellow)
Indicates which antenna is Active
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Preface
RFR-02 Installation Guide
Performance Features
Ambient Temp. Range

0 – 50 C
Read Rate


300 bytes/sec @ 9600
600 bytes/sec @ 57600
Serial Interfaces


RS232 (Setup)
RS232/422 (Host Comm)
I/O


2 Trigger inputs


+5 to 24 VDC (opto isolated), or
Non-Isolated active low
2 Relay Outputs


Solid State Form A Relays
30VDC Max @300mA (resistive)
Transmit Power

Nominal 22.0 dBm +/- 1.5 dB
Operating Frequency

13.560 Mhz
Modulation Type

ASK (Amplitude Shift Keying)
Protocol

ISO 15693
Antennas

Accu-Sort Systems, Inc.
Dual Antenna option

Timed, Trigger, or Command switching
RFR-02 Installation Guide
Product Specifications
Wiring and Cable Pin Diagrams
1. See Setup Port
2. See RS232/422 Port
3. See Power Connector
4. See Input1 Connector
5. See Input2 Connector
6. See Output Connector
7. Antenna1 Port
8. Antenna2 Port
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Preface
RFR-02 Installation Guide
1. Setup Port (DB9 FEMALE)
1. NC (not connected)
2. Reader TX (232)
3. Reader RX (232)
4. NC
5. GND (ground)
6-9. NC
Pin3 – Reader RX
Pin5 - Ground
Pin9 – N/C
Accu-Sort Systems, Inc.
Pin2 – Reader TX
Pin1 – N/C
Pin6 – N/C
RFR-02 Installation Guide
Product Specifications
2. RS232/RS422 Communications Port (DB9 FEMALE)
1. 422 Isolated GND
2. Reader TX (232)
3. Reader RX (232)
4. NC
5. 232 GND
6. Reader SD- (422)
7. Reader SD+ (422)
8. Reader RD- (422)
9. Reader RD+ (422)
Pin1 – 422 Isolated Ground
Pin2 – RS232
Pin3 – RS232
RX
Pin4 – N/C
Pin5 – RS232 Ground
Pin6 – RS422
SDPin7 – RS422
SD+
Pin8 – RS422
Pin9 – RS422
RD+
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Preface
RFR-02 Installation Guide
3. Power Connector (Turck 4 Pin Male EuroFast # FSFD4.4-0.5)
1. VDD+
2. VDD3. Safety/Chassis Ground
4. NC
Pin1 – VDD+
Pin2 – VDD-
Pin4 – N/C
Pin 3 – Safety
Ground
4. Trigger Input 1 (Upper Connector – Turck 5 Pin Female Eurofast
#FKFDW4.5-0.5)
1. Non-Isolated (Active Low, Internally pulled to +5VDC)
2. +12VDC
3. Optically Isolated +
4. GND
5. Optically Isolated –
Pin 1 – Non-Isolated
Pin4 – GND
Pin5 – Opto-Isolated
Accu-Sort Systems, Inc.
Pin 2 - +12VDC
Pin3 – Opto-Isolated
RFR-02 Installation Guide
Product Specifications
5. Trigger Input 2 (Lower Connector – Turck 5 Pin Female
Eurofast #FKFDW4.5-0.5)
1. Non-Isolated (Active Low, Internally pulled to +5VDC)
2. +12VDC
3. Optically Isolated +
4. GND
5. Optically Isolated –
Pin4 – Ground
Pin5 – Opto-Isolated
Pin 1 – Non-Isolated
Pin 2 - +12VDC
Pin3 – Opto-Isolated +
6. Output Connector (Turck 4 Pin Female EuroFast #FKFD4.4-0.5)
1. Relay 1 Contact
2. Relay 1 Contact
3. Relay 2 Contact
4. Relay 2 Contact
Pin1 – Relay1 Contact
Pin2 – Relay1 Contact
Pin3 – Relay2 Contact
Pin4 – Relay2 Contact
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Preface
RFR-02 Installation Guide
7. Antenna 1 Port (BNC Female)
1. 13.56Mhz Signal
8. Antenna 2 Port (BNC Female)
2. 13.56Mhz Signal
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Installation Requirements
Installation Requirements
Power
There are 2 supply voltage options available for the RFR-02.

12 Volt ( RFR-02 Part # 1000052365 )
Use only Accu-Sort supplied Power Supply part # 1000052837.
Failure to use an AccuSort approved Power supply will void the
product warranty.

10 – 30 Volt ( RFR-02 Part # 1000053245 )
Input range 10 – 30 VDC .
NOTE: Safety earth ground must be attached to the
reader (Failure to do so will void the warranty), designed
for applications where customers are intending to provide
their own DC power.

Flying leaded Shielded Cable (for use with 10– 30 Volt option
only):


Accu-Sort Part #:1000052775
TURCK Part #: RKS 4.4T-2 (2 meter)
Antennas
Use only Accu-Sort provided RFA-02 Antennas. Connecting any
other antenna will disable unit from functioning, and could be in
violation of FCC part 15 regulations.
Approved Antenna Choices:
Antenna Model #
Part #
Description
RFA-02
RFA-02-02
RFA-02-02
RFA-02-02
RFA-02-03
RFA-02-03
RFA-02-03
1000052373
0105496001
0105496002
0105496003
0105574001
0105574002
0105574003
5” x 7”
12” x 16” w/7 Ft cable
12” x 16” w/10 Ft cable
12” x 16” w/15 Ft cable
5” x 16” w/7 Ft cable
5” x 16” w/10 Ft cable
5” x 16” w/ 15 Ft cable
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RFR-02 Installation Guide
Installation Requirements
Inputs 1 and 2
Two optically isolated inputs or two non-isolated inputs are available.
When using isolated inputs user must supply both positive and
negative voltage references. When using non isolated inputs user
must connect to sink output of trigger device (active low). A current
limited (100 ma max) 12VDC connection is provided on each input
connector for purposes of providing power to low current consuming
devices such as a photo-eyes. Non isolated inputs are internally
pulled to +5VDC through a 2.2k ohm resistor. Note avoid sourcing any
voltage into the non-isolated inputs as damage may occur to device.





Pin 1: Non-Isolated Input
Pin 2: +12 VDC internally current limited
Pin 3: Optically Isolated + Input
Pin 4: GND
Pin 5: Optically Isolted – Input
Mating Field Wireable Connector:


Accu-Sort Part # 1000052778
TURCK Part # BSWS-8151
Outputs 1 and 2
Two Solid-State Form A Relay Outputs.


Output 1: Pins 1 and 2
Output 2: Pins 3 and 4
Mating Field Wireable Connector:


Accu-Sort Systems, Inc.
Accu-Sort Part # 1000057444,
TURCK Part # BS8141-0
RFR-02 Installation Guide
Installation Requirements
Reader Mounting Dimensions
(Extracted from drawing #106103, rev01)
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Installation Requirements
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RFR-02 Installation Guide
RFR-02 Installation Guide
Installation Requirements
Antenna Mounting
General Guidelines
To achieve optimum performance from theRFR-02 Reader, antennae
should be mounted as far from metal objects as possible. The RF
energy generated by the Reader/Antenna combination to
communicate with the RFID tags is called the near field. The near field
is the magnetic portion of the RF field and can be influenced by
surrounding metallic objects. These metallic objects if located close
enough to the antennae and are of the right shape and position can
create eddy currents, which diminish and in some instances can
totally cancel out the reading ability of the antenna. These metallic
objects also will detune the antennae which in turn will cut down on
the power transfer between reader and antenna leading to less then
optimum performance.
To cover all possible antenna mounting possibilities is beyond the
intent of this document, but an example of one way to help reduce the
influence of metallic objects on the antenna is shown below. The 5” x
16” antenna is shown in this example being mounted in a roller
conveyor.
Accu-Sort Systems, Inc.
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RFR-02 Installation Guide
Installation Requirements
Antenna Mounting Example
(Extracted and modified from drawing #108804, rev02)
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Installation Requirements
Notes:
Accu-Sort Systems, Inc.
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RFR-02 Installation Guide
Modes of Operation
Modes of Operation
The RFR-02’s modes of operation can be divided into three
categories. The reader can be in Setup mode where the user can
change parameters, or it can be in Trigger mode where the unit acts
only on trigger inputs, or it can be in Serial Command mode where the
unit accepts serial data. See following sections for in depth details on
each mode.
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RFR-02 Installation Guide
Modes of Operation
Setup Mode
All of the user changeable parameters can be configured in setup
mode. These settings will be stored in non-volatile memory only if they
are saved before power-down. If not saved before power-down, the
settings will be lost and the unit will boot-up in its default configuration.
Entering Setup Mode
Setup mode can be entered by either:
1. Powering on the unit, waiting for an ACK (^F, 0x06), then sending
ETX (^C, 0x03) within 3 seconds of receiving the ACK. This
method only works on the setup port. On power up the RFR-02
always defaults its communication to the setup port for 3 seconds,
port configuration is 19200 N81.
2. Typing ‘setup’ in all lower-case characters during normal
operation.
In either case, the RFR-02 will send a SYN character (^V, 0x16) and
display its firmware version. After the firmware version of the unit is
displayed you can view its current configuration by typing a ‘?’
followed by a ‘CR’.
Setup commands are in upper case only and may be followed by 1 or
more characters (normally ASCII digits, but can be other characters
depending on the command), and are terminated by a CR (^M, 0x0d).
Setup commands do not use either transmit or receive headers or
trailers (discussed below).
In setup mode, all valid commands will be acknowledged with the
following sequence:
ASII
LF STX ACK CR LF CR
HEX 0A 02 06 0D 0A OD
Invalid commands will be acknowledged with the following sequence:
ASII
LF STX NCK CR LF CR
HEX 0A 02 15 0D 0A OD
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
Setup Mode Parameters
ANTENNAx
Sets the antenna mode of operation to the following configuration
options.
The default value for ‘x’ is 0 (single antenna attached to antenna 1
port).
The legal settings for the variable ‘x’ are as follows:
Single antenna mode (antenna 1 only)
Dual antenna mode, trigger switching
Dual antenna mode, timer switching (see ANTTIME
command)
Dual antenna mode, serial command switching
In all dual antenna modes, each response from the RFR-02 will start
with either a ‘1’ or a ‘2’, indicating which antenna was used.
NOTE: There is a 10ms delay in switching between
antennas.
ANTTIMExxx
Sets the antenna dwell time for ANTENNA mode 2. The units of
ANTTIME are in 10ms time slices, with the default value for ‘xxx’
being 005 (50ms dwell).
The legal values of ‘xxx’ are 001 to 255, and all 3 digits must be sent.
Example: ANTIME100 will cause the unit to switch between the two
antennae every 1 second.
BAUDx
Sets the baud rate for serial communications on the Setup and
Network ports.
The default value of ‘x’ for is 1, which corresponds to 19200 baud.
The legal values are:
9600 baud
19200 baud
28800 baud
38400 baud
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RFR-02 Installation Guide
Modes of Operation
57600 baud
NOTE: All serial communications use 8 data bits, no
parity, 1 stop bit, and no flow control (N-8-1).
BLOCKNUMxx
Sets the first block number of a tag’s memory contents that the unit
will read from when a trigger event occurs. The legal values of ‘xx’ are
00 to 99, and both digits must be sent. The maximum value depends
on the tag’s memory capacity, and is normally 63 for ISO15693. The
default value for ‘xx’ is 00.
NOTE: This parameter is only valid when used in
conjunction with the following additional parameter
settings:
ANTENNA1
TRIGGER1x, when x = 1 ,3, or 5
TRIGGER2x, when x = 1 or 3
BLOCKSxx
Sets the number of additional blocks of a tag’s memory contents that
the unit will read when a trigger event occurs. The additional blocks to
be read will start immediately after the block define by the
BLOCKNUMxx setting. The legal values of ‘xx’ are 00 to 99, and both
digits must be sent. The default value for ‘xx’ is 00.
NOTE: The maximum value depends on the tag’s memory
capacity, and is normally 63 for ISO15693.
COMMx
Set the unit’s active communication port. Note there can only be one
active port.
The default value for ‘x’ is 0 (setup port RS232), and the legal values
are:
setup port (RS232)
network port (RS232)
network port (RS422)
reserved for future use
DEFAULT
Set all parameters to their default values. See the individual
command descriptions for the default values. This command does not
have any parameters.
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RFR-02 Installation Guide
Modes of Operation
SAVE
Save the current setup parameters to EEPROM.
EXIT
Exit setup mode and return to normal operation. This command does
not have any parameters.
NOTE: The current setup values are NOT automatically
saved into EEPROM. The current setup values will be
used, but the RFR-02 will return to the last saved values at
the next power-up. If you wish to keep the current
configuration as the power-up mode, you must use the
SAVE command before exiting setup.
MATCHxxxxxxxx
Set the filter string for firing the outputs.
The MATCH string is 8 characters, and is used as a “filter” for firing
the outputs in OUTPUTx3 or similar (see below) – even with a valid
read, the output will not fire unless MBYTES (see below) of the
MATCH string match the data read from the tag.
The default value for ‘xxxxxxxx’ is 00000000 (8 characters of ASCII
0, 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30), and the string may be
any set of 8 bytes (0x00 to 0xFF).
All 8 bytes must be sent when setting the MATCH string.
MBYTESx
Set the number of bytes to compare against the MATCH string.
The MBYTES command allows a variable number of bytes to be used
as a filter for firing of OUTPUT1 and OUTPUT2 when set to mode 3
(see below) – even with a valid read the output will not fire unless ‘x’
number of characters of MBYTES equal the characters of the MATCH
string (see above). The comparison of the number of bytes to match
starts from the left most character of the MATCH ‘xxxxxxxx’
parameter.
The default value for ‘x’ is 0, and the legal values are 0 to 8.
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RFR-02 Installation Guide
Modes of Operation
OUTPUT1x
Set the firing mode for OUTPUT1.
OUTPUT 1 will “fire” (connect pins 1 and 2 of the output connector),
based on the result of the last read and the current antenna mode.
The default value of OUTPUT1’x’ is 1, fire OUTPUT1 on valid tag
read. The legal values are:
Do not fire OUTPUT1
Fire OUTPUT1 on valid read from a tag
Fire OUTPUT1 on invalid read from a tag (no read,
misread, collision)
Fire OUTPUT1 on valid read and when the first MBYTESx
of data from the tag match the first MBYTESx of the
MATCH string
In addition to the read condition, OUTPUT1 will fire based on the
antenna used in TRIGGER mode.
In serial command mode (tag read is initiated by a serial command),
OUTPUT1 will be used (if not 0) regardless of which antenna was
used for the read.
In trigger mode (tag read is initiated by a trigger input), OUTPUT1 will
be used with any TRIGGER1 setting > 2 and when TRIGGER2 mode
is 3 or 4 (see below).
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
OUTPUT2x
Set the firing mode for OUTPUT2.
OUTPUT 2 will “fire” (connect pins 3 and 4 of the output connector),
based on the result of the last read and the current antenna mode.
The default value of OUTPUT2’x’ is 2, fire on invalid read from tag.
The legal values are:
Do not fire OUTPUT2
Fire OUTPUT2 on valid read from a tag
Fire OUTPUT2 on invalid read from a tag (no read,
misread, collision)
Fire OUTPUT2 on valid read and the first MBYTES of data
from the tag match the first MBYTES of the MATCH string
In addition to the read condition, OUTPUT2 will fire based on the
antenna used in TRIGGER mode.
In serial command mode (tag read is initiated by a serial command),
OUTPUT2 will be used (if not 0) regardless of which antenna was
used for the read.
In trigger mode (tag read is initiated by a trigger input), OUTPUT2 will
be used with any TRIGGER2x and TRIGGER1x when TRIGGER1x
mode is greater than 2 (see below).
HOLD1xxx
Set the hold time of the solid state relay connected to OUTPUT1. The
units of HOLD1 are 10ms time slices, and the default value for ‘xxx’ is
005 (50ms). The legal values of ‘xxx’ are 005 to 255, and all three
digits must be sent.
HOLD2xxx
Set the hold time of the solid state relay connected to OUTPUT2. The
units of HOLD2 are 10ms time slices, and the default value for ‘xxx’ is
005 (50ms). The legal values of ‘xxx’ are 005 to 255, and all three
digits must be sent.
PROTOCOLx
Sets the Air to Air communications protocol.
The default value of ‘x’ is 2, and corresponds to ISO15693. This
parameter should not be changed.
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RFR-02 Installation Guide
Modes of Operation
RXHDRx
Set the receive header byte to ‘x’.
The receive header byte, if not NUL (0x00), is expected before any
serial command when not in setup mode. This byte is not used by the
RFR-02 when in setup mode, it allows for flexibility in communications
with the host system.
The default value of ‘x’ is NUL (0x00), and legal values are 0x00 to
0xFF. Note that CR (^M, 0x0D) is also a valid byte, but is also the
signal to the RFR-02 for end of command in setup mode. This special
case is handled by sending the 2-byte string CR (in upper case) as
the header byte. i.e. RXHDRCR
In addition, some types of communications software programs do not
like to send a NUL, and so the RFR-02 software when in setup mode
will recognize the special case of sending the 2-byte string 00 (two
ASCII zeros) to set the header byte to NUL. i.e. RXHDR00
RXTRLx
Set the receive trailer byte to ‘x’
The receive trailer byte, if not NUL (0x00), is expected after any serial
command when not in setup mode. This byte is not used by the RFR02 when in setup mode, it allows for flexibility in communications with
the host system.
The default value of ‘x’ is NUL (0x00), and legal values are 0x00 to
0xFF. Note that CR (^M, 0x0D) is also a valid byte, but is also the
signal to the RFR-02 for end of command. This special case is
handled by sending the 2-byte string CR (in upper case) as the trailer
byte. i.e. RXTRLCR
In addition, some types of communication software programs do not
like to send a NUL, and so the RFR-02 software when in setup mode
will recognize the special case of sending the 2-byte string 00 (two
ASCII zeros) to set the trailer byte to NUL. I.e. RXTRL00
TRIGGER1x
Set action taken when TRIGGER1 becomes active.
The default value is 0 (do nothing, serial trigger), and the legal values
are:
Accu-Sort Systems, Inc.
Do nothing (Serial Command mode)
Read BLOCKNUM + BLOCKS additional blocks from
antenna 1
Inventory tags from antenna 1
RFR-02 Installation Guide
Modes of Operation
Read BLOCKNUM + BLOCKS additional blocks from
antenna 1 and use both outputs
Inventory tags from antenna 1 and use both outputs
Read BLOCKNUM + BLOCKS additional blocks from
antenna 1 until valid read or TRIGGER2 is asserted, use
both outputs
Inventory tags from antenna 1 until valid data or
TRIGGER2 is asserted, and use both outputs
When TRIGGER1x (or TRIGGER2x) is non-zero, the RFR-02 will not
respond to serial commands to read or write tags.
When TRIGGER1 is 5 or 6, TRIGGER2 is used to end the TRIGGER1
action and will not perform any action, despite the value of
TRIGGER2.
WARNING: When doing an inventory via TRIGGER1,
TRIGWAIT1xxx must be set to at least 013, otherwise the
inventory function may time-out before the inventory is
complete and the tag could be missed.
TRIGGER2x
Set action taken when TRIGGER2 becomes active.
The default value is 0 (do nothing, serial trigger), and the legal values
are:
Do nothing (Serial Command mode)
Read BLOCKNUM + BLOCKS additional blocks from
antenna 2
Inventory tags from antenna 2
Read BLOCKNUM + BLOCKS additional blocks from
antenna 2 and use both outputs
Inventory tags from antenna 2 and use both outputs
When TRIGGER2x (or TRIGGER1x) is non-zero, the RFR-02 will not
listed to serial commands to read or write to tags.
When TRIGGER1x is 5 or 6, TRIGGER2 is used to end the
TRIGGER1 action and will not perform any action, despite the value
of TRIGGER2.
WARNING: When doing an inventory via TRIGGER2,
TRIGWAIT2 must be set to at least 013 (130ms),
otherwise the inventory may time-out before the inventory
is complete and the tag could be missed.
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RFR-02 Installation Guide
Modes of Operation
TRIGWAIT1xxx
Set the timeout period of TRIGGER1x action.
The units of TRIGWAIT1xxx are a 10ms time slice, and the default
value is 005 (50ms).
The legal values of ‘xxx’ are 005 to 255, and all three digits must be
sent.
WARNING: When doing an inventory via TRIGGER1,
TRIGWAIT1 must be set to at least 013, otherwise the
inventory may time-out before the inventory is complete
and the tag could be missed.
TRIGWAIT2xxx
Set the timeout period of TRIGGER2 action
The units of TRIGWAIT2 are a 10ms time slice, and the default value
is 005 (50ms).
The legal values of ‘xxx’ are 005 to 255, and all three digits must be
sent.
WARNING: When doing an inventory via TRIGGER2,
TRIGWAIT2 must be set to at least 013, otherwise the
inventory may time-out before the inventory is complete
and the tag could be missed.
TXHDRx
Set the transmit header byte to ‘x’.
The transmit header byte, if not NUL (0x00), is sent before any serial
response when not in setup mode. This byte is not used by the
RFR-02 when in setup mode, it allows for flexibility in communications
with the host system.
The default value of ‘x’ is NUL (0x00), and legal values are 0x00 to
0xFF. Note that CR (^M, 0x0D) is also a valid byte, but is also the
signal to the RFR-02 for end of command. This special case is
handled by sending the 2-byte string CR (in upper case) as the
header byte. i.e. TXHDRCR
In addition, some communications software programs do not like to
send a NUL, and so the RFR-02 software when in setup mode will
recognize the special case of sending the 2-byte string 00 (two ASCII
zeros) to set the header byte to NUL. I.e. TXHDR00
TXTRLx
Set the transmit trailer byte to ‘x’
The transmit trailer byte, if not NUL (0x00), is sent after any serial
response when not in setup mode. This byte is not used by the RFRAccu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
02 when in setup mode, it allows for flexibility in communications with
the host system.
The default value of ‘x’ is NUL (0x00), and legal values are 0x00 to
0xFF. Note that CR (^M, 0x0D) is also a valid byte, but is also the
signal to the RFR-02 for end of command. This special case is
handled by sending the 2-byte string CR (in upper case) as the trailer
byte. I.e. TXTRLCR
In addition, some communications software programs do not like to
send a NUL, and so the RFR-02 software when in setup mode will
recognize the special case of sending the 2-byte string 00 (two ASCII
zeros) to set the trailer byte to NUL. I.e. TXTRL00
Display the current setup parameters.
The RFR-02 will reply with it’s ACK message, CR LF STX ACK CR LF
(^M ^J ^B ^F ^M ^J, 0x0D 0x0A 0x02 0x06 0x0D 0x0A), and then a
table of the current values of the user settable parameters. For
example, with all values at their defaults:
PROTOCOL:2
ANTENNA:0
ANTTIME:005
COMM:0
BAUD:1
BLOCKNUM:00
BLOCKS:00
TRIGGER1:0
TRIGWAIT1:005
TRIGGER2:0
TRIGWAIT2:005
OUTPUT1:1
OUTPUT2:2
HOLD1:005
HOLD2:005
MATCH:00000000
MBYTES:0
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RFR-02 Installation Guide
Modes of Operation
Accu-Sort Systems, Inc.
TXHDR:0x00
TXTRL:0x00
RXHDR:0x00
RXTRL:0x00
RFR-02 Installation Guide
Modes of Operation
Output Message Format
Messages from the RFR-02 will include TRHDR and/or TXTRL (if they
are not NUL), and will include the antenna (if the RFR-02 is in any
dual antenna mode), ISO Flag byte, and requested data. Then
general format (with all fields) is:
Response Format with Valid Tag Data Being Read
TXHDR
Antenna
ISO Flags
Data
TXTRL
Parameter
Dependent
Yes
Yes
No
No
Yes
Parameters
that will cause
data to be
included in
response
from unit.
TXHDRx
anything
other
than Null
(0x00)
ANTENNAx Always
= 1,2, or 3
sent see
ISO Flag
Byte
below for
definition
Always
sent
TXTRLx
anything
other
than Null
(0x00)
Response Format Error Messages
NOTE: Not all commands will send a error message,
commands that do not will be so noted.
TXHDR
Antenna
ISO Flags
Data
TXTRL
Parameter
Dependent
Yes
Yes
No
N0
Yes
Parameters
that will cause
data to be
included in
response
from unit.
TXHDRx
anything
other
than Null
(0x00)
ANTENNAx Not Sent
= 1,2, or 3
See
paragraph
below for
possible
error
messages
TXTRLx
anything
other
than Null
(0x00)
The error messages from the RFR-02 are:
These messages will be in the format:

NO TAG
No tag was read or it could be in “Quiet” mode
NO ANT
An Accu-Sort antenna was not detected. Check
your antenna connection.
COLL
More than one tag responded.
MISREAD
The data returned from the tag was garbled.
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RFR-02 Installation Guide
Modes of Operation
ISO Flag Byte Definition
The ISO Flags (if not 0x00) will indicate an error occurred. Flags will
correspond to the specific error (Taken from ISO 15693-3) as listed
below.
Accu-Sort Systems, Inc.
0x00
No Error
0x01
Command is not supported
0x02
Command is not recognized
0x03
Command option is not supported
0x0F
Error with no information (error code not supported)
0x10
Block is not available (doesn’t exist)
0x11
Block is already locked
0x12
Block is locked so its content cannot be changed
0x13
Block was not successfully programmed
0x14
Block was not successfully locked
All others
Reserved for Future Use (RFU)
RFR-02 Installation Guide
Modes of Operation
Trigger Mode
When either TRIGGER1x or TRIGGER2x is not “0”, the RFR-02 will
operate in Trigger Mode. In this mode, the only way to get the RFR02 to communicate with a tag is by the trigger inputs. The RFR-02
can be setup to have either trigger use one or both outputs. Use
discretion when assigning outputs because it may be confusing if both
triggers are set up to use both outputs.
Another point to mention about Trigger Mode is that if the triggers are
operating in trigger switched dual antenna mode (ANTENNA1) that
TRIGGER1 will switch to antenna 1 when activated, and TRIGGER2
will switch to antenna 2 when activated.
In Trigger Mode, all serial input is ignored by the RFR-02 and it only
accepts input from the triggers. The only exception is that sending
‘setup’ to the unit will put the RFR-02 into Setup Mode. Note you must
know the current COMMx setting and BAUDx setting for the unit to
accept the setup command.
Example: If COMMx = 0 (Setup Port active) and you try and send the
setup command on the Network Port the unit will not respond, the
same is true concerning the BAUDx setting.
NOTE: A trigger signal must be active for a minimum of
10ms to be accepted.
Trigger Mode Examples
The following examples will be based upon the tag data shown in the
screen capture shown below.
The Tag UID is: Hex E0 07 81 26 AD 83 5D 67 (unless otherwise
noted)
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RFR-02 Installation Guide
Modes of Operation
Read Block 0 of Tag using Trigger Input 1 and Antenna 1
with 50msec timeout with a Transmit Header set to 5B0X
(ASCII ‘[‘) and a Transmit Trailer set to 5D0X (ASCII ‘]’).
Parameters that have been changed from their default settings are as
follows:
ANTENNA1
TRIGGER11
TXHDR0x5B, [
TXTRL0x5D, ]
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
Response With Valid Tag Data Read
NOTE: Commas are shown for clarity purposes and are
not part of data.
 NP stands for Non Printable character.
 NA stands for Not Applicable so no character will be
sent.
When TRIGGER1 is asserted, the output data string will be:
Example TXHDR Antenna ISO
Flag
NUL
ASCII
Hex
5B
31
00
Tag Data
TXTRL
0,0,0,0
30,30,30,30
5D
Response with No Tag Data Read
When TRIGGER1 is asserted, the output data string will be:
Example TXHDR Antenna ISO
Flag
NA
ASCII
Hex
5B
31
Tag Data
TXTRL
NO TAG
NA
5D
4E,4F,20,54,41,47
Read Blocks 0 Thru 4 of Tag using Trigger Input 1 and
Antenna 1 with 50msec timeout
Parameters that have been changed from their default settings are as
follows:
ANTENNA1
BLOCKS04
TRIGGER11
TXHDR0x5B, [
TXTRL0x5D, ]
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RFR-02 Installation Guide
Modes of Operation
Response With Valid Tag Data Read
When TRIGGER1 is asserted, the output data string will be:
Example TXHDR Antenna ISO
Flag
ASCII
Tag Data
NUL
TXTRL
0,0,0,0,1,1,1,1,2,2,
2,2,3,3,3,3,4,4,4,4,
Hex
5B
31
00
30,30,30,30,31,31,31,
31,32,32,32,32,33,33,
33,33,…….,34
5D
Response With No Tag Data Read
When TRIGGER1 is asserted, the output data string will be:
Example TXHDR Antenna ISO
Flag
ASCII
NA
Hex
5B
31
NA
Tag Data
TXTRL
NO TAG
5D
4E,4F,20,54,41,47
Inventory Tag UID Using Trigger Input 1 and Antenna 1 with
200msec timeout
Parameters that have been changed from their default settings are as
follows:
ANTENNA1
TRIGGER12
TRIGWAIT1020
TXHDR0x5B, [
TXTRL0x5D, ]
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
Response With Valid Tag UID Read and Trigger 1 asserted for the
1st time
When TRIGGER1 is asserted for the 1st time, the output data string
will be:
Example TXHDR Antenna ISO
Flag
ASCII
NA
Hex
5B
31
NA
Tag Data
TXTRL
Not shown due to many
Non printable characters
5D
67,5D,83,AD,26,81,07,E0
(UID sent reverse order)
Response with Valid Tag UID Read and Trigger 1 asserted for the
2nd time
When TRIGGER1 is asserted for the 2nd time and Tag has not been
removed from antenna’s field, the output data string will be:
Example TXHDR Antenna ISO
Flag
ASCII
NA
Hex
5B
31
NA
Tag Data
TXTRL
NO TAG
5D
4E,4F,20,54,41,47
NOTE: The Tag did not send its UID the second time
because the 1st inventory command left the tag in “Quiet
mode”, if tag is removed from the antenna’s field and then
placed back in field it will again respond with its UID.
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RFR-02 Installation Guide
Modes of Operation
Response With No Tag in antenna Field
When TRIGGER1 is asserted, the output data string will be:
Example TXHDR Antenna ISO
Flag
NA
ASCII
Hex
5B
31
Tag Data
TXTRL
NO TAG
NA
5D
4E,4F,20,54,41,47
Read Blocks 5 and 6 of Tag Using Trigger1 and Data Match
Parameter to Close Output 1
Parameters that have been changed from their default settings are as
follows:
ANTENNA1
TRIGGER13
TRIGWAIT1100
OUTPUT13
BLOCKNUM05
BLOCKS01
MATCH55556666
MBYTES8
HOLD1100
TXHDR0x5B, [
TXTRL0x5D, ]
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
Response With Valid Tag Read of Blocks 5 and 6 with matching
data.
When TRIGGER1 is asserted, the output data string will be:
And Output 1 will close for 1 second.
Example TXHDR Antenna ISO
Flag
NUL
ASCII
5B
Hex
31
Tag Data
TXTRL
5,5,5,5,6,6,6,6,
00
5D
35,35,35,35,36,36,36,36
Response with Valid Tag Read of Blocks 5 and 6 without
matching data (all 0’s in blocks 5 and 6).
When TRIGGER1 is asserted, the output data string will be:
And Output 1 will not close.
Example TXHDR Antenna ISO
Flag
ASCII
NUL
Hex
5B
31
00
Tag Data
TXTRL
0,0,0,0,0,0,0,0,
5D
30,30,30,30,30,30,30,30
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RFR-02 Installation Guide
Modes of Operation
Response with No Tag Data read
When TRIGGER1 is asserted, the output data string will be:
And Output 1 will not close
Example TXHDR Antenna ISO
Flag
ASCII
NA
Hex
5B
31
NA
Tag Data
TXTRL
NO TAG
5D
4E,4F,20,54,41,47
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
Serial Command Mode
When in Serial Command Mode, the RFR-02 will only accept serial
input and will ignore both triggers.
The outputs, if used, are independent of which antenna is used.
Serial commands require RXHDR and/or RXTRL (if they are not
NUL), but do not require a CR.
If the RFR-02 is in dual antenna mode but not timer switched mode
(ANTENNAx is 3), the antenna must be specified in the 2nd byte of
most commands. See below for details on which commands require
the antenna to be specified. Note that 1 selects antenna 1, 2 selects
antenna 2, and 0 uses the currently selected antenna.
Messages from the RFR-02 will include TRHDR and/or TXTRL (if they
are not NUL), and will include the antenna (if the RFR-02 is in any
dual antenna mode), as well as the requested data. Then general
format (with all fields) is:

Serial Mode Response Format with Valid Tag data being Read
TXHDR
Antenna
ISO Flags
Data
TXTRL
Parameter
Dependent
Yes
Yes
No
No
Yes
Parameters
that will cause
data to be
included in
response
from unit.
TXHDRx
anything
other
than Null
(0x00)
ANTENNAx See ISO
=3
Flag Byte
below for
definition.
Normally
0x00
Always
sent
TXTRLx
anything
other
than Null
(0x00)
Serial Mode Response Format with Error Message
TXHDR
Antenna
ISO Flags
Data
TXTRL
Parameter
Dependent
Yes
Yes
No
N0
Yes
Parameters
that will
cause data to
be included in
response
from unit.
TXHDRx
anything
other
than Null
(0x00)
ANTENNAx Not Sent
=3
See
paragraph
below for
possible
error
messages
TXTRLx
anything
other
than Null
(0x00)
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RFR-02 Installation Guide
Modes of Operation
NOTE: The RFR-02 will write to as many blocks as
necessary to fit the intended message. For example
writing “1234567890” starting at block 00 will overwrite
blocks 0-2.
The error messages from the RFR-02 are:
These messages will be in the format:

NO TAG
No tag was read or it could be in “Quiet” mode
NO ANT
An Accu-Sort antenna was not detected. Check
your antenna connections.
COLL
More than one tag responded.
MISREAD
The data returned from the tag was garbled.
The ISO Flags (if not 0x00) will indicate an error occurred, and the
next byte after the Flags will correspond to the specific errors which
are shown on page 32.
Serial Mode Command Format
Accu-Sort Systems, Inc.
RXHDR
Antenna
Serial
RXTRL
Command
Parameter
Dependent
Yes
Yes
No
Yes
Parameters
that will
cause data
to be
included in
command
to unit.
RXHDRx ANTENNAx
=3
anything
other
than Null
(0x00)
See
specifics
of each
serial
command
RXTRLx
anything
other
than
Null
(0x00)
RFR-02 Installation Guide
Modes of Operation
Serial Mode Commands
For all examples shown assume that the unit has its setup parameters
at their default values, except for the following:
TXHDR0x5B, ASCII = [
TXTRL0x5D, ASCII = ]

“E” End current continuous reading commands
The “E” command is sent to end commands that have put the
RFR-02 in a continuous read condition. Commands that require
the “E” to end them are “I” (Inventory) and the continuous read
commands; R04, R05, R06, R07.
Example
ASCII
HEX
Command
45
Response
NA
NA

“A” Switch currently selected antenna
Only active in dual antenna mode (ANTENNA3), this command
will switch the current antenna.
Example
ASCII
HEX
Command
41
Response
NA
NA

“Ia” Do an inventory of tags.
If in dual antenna mode (ANTENNA3), specify which antenna to
use, “a”= 1 or 2.
Report the UIDs of tags in proximity to the antenna. Once the UID
of the tag has been read, it will be in “Quiet” mode until the tag
leaves the field of the antenna.
Note that the bytes of the UID are output in reverse order (the
same order that the RFR-02 expects the UID in a command).
Example
ASCII
HEX
Command
49
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RFR-02 Installation Guide
Modes of Operation
[Many NP
characters]
Response
5B,67,5D,83,AD,26,81,07,E0,5D
The tag will be in “Quiet” mode until the tag leaves the field of the
antenna. To stop the inventory, type “E” (no RXHDR or RXTRL is
necessary).

“L” Lock blocks.
There are two options available:

La00bb
Lock block bb. If in dual antenna mode (ANTENNA3), specify
which antenna to use, “a”= 1 or 2.
Locking a block prevents writing data to the specified block. This
is a permanent irreversible change to the tag.
If the lock is successful, the response will be TXHDR (if any), the
antenna (if in dual antenna mode), “YL” (Yes Lock), and TXTRL (if
any).
The example below is locking block 30 of a tag that is in the
antenna’s field.
Example
ASCII
HEX
Command
L0030
4C,30,30,33,30
Response
[YL]
5B,59,4C,5D
An unsuccessful lock can reply with any of the following errors:
NO TAG
NO ANT
COLL
MISREAD
NL
The first four are normal RFR-02 error messages, the fifth is
based on the ISO error flag byte, and probably represents trying to
lock a previously locked block.
The example below is locking block 30 without a tag in the antenna’s
field.
Example
ASCII
HEX
Command
L0030
4C,30,30,33,30
Response
[NO TAG]
5B,4E,4F,20,54,41,47,5D

Accu-Sort Systems, Inc.
La02bbuuuuuuuu
RFR-02 Installation Guide
Modes of Operation
Lock block bb of tag with UID uuuuuuuu. If in dual antenna mode
(ANTENNA3), specify which antenna to use, “a”= 1 or 2.
Note that, since the UID is specified, an ISO15693 tag will
respond even if it is in Quiet mode.
Locking a block prevents writing data to the specified block. This
is a permanent irreversible change to the tag.
If the lock is successful, the response will be TXHDR (if any), the
antenna (if in dual antenna mode), “YL” (Yes Lock), and TXTRL (if
any).
The example below is locking block 40 of a Tag with a UID of
E0,07,00,00,06 A6,B8,0B
Example
ASCII
HEX
Command
L,0,2,4,0,(Tag
UID omitted
due to many
ASCII NP
characters)
[YL]
4C,30,32,34,30,0B,B8,A6,06,00,00,07,E0
Response
5B,59,4C,5D
An unsuccessful lock can reply with any of the following errors:
NO TAG
NO ANT
COLL
MISREAD
NL
The first four are the normal RFR-02 error messages; the fifth is
based on the ISO error Flag Byte, and probably represents trying
to lock a previously locked block.
The example below is locking block 40 of a Tag with a UID of
E0,07,00,00,06 A6,B8,0B, the tag is not in the antenna’s field
Example
ASCII
HEX
Command
L,0,2,4,0,(Tag
UID omitted
due to many
ASCII NP
characters)
[NO TAG]
4C,30,32,34,30,0B,B8,A6,06,00,00,07,E0
Response
5B,4E,4F,20,54,41,47,5D
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RFR-02 Installation Guide
Modes of Operation

“O” Fire output via serial command.
There are two subcommands available.


O01
Close output 1 for the time specified by the HOLD1 setup
parameter.
O02
Close output 2 for the time specified by the HOLD2 setup
parameter.
The example below will close Output 1 for the time specified by
setup parameter HOLD1xxx. No response is expected with this
command.
Example
ASCII
HEX
Command
O01
4F,30,31
Response
NA
NA

“Qauuuuuuuu” Put tag with UID uuuuuuuu into Quiet mode.
If in dual antenna mode (ANTENNA3), specify which antenna to
use, “a”= 1 or 2.
In Quiet mode, a tag will not respond to requests until it leaves the
field of the antenna (Quiet mode does not persist when the tag
leaves the antenna’s field).
The example below is putting the Tag with a UID of
E0,07,00,00,06,A6,B8,0B, into Quiet mode. No response is
expected with this command.
Example
ASCII
HEX
Command
Q, (Tag UID
omitted due to
many ASCII
NP
characters)
NA
51,0B,B8,A6,06,00,00,07,E0
Response
NA
NOTE: For the following examples of Read commands
assume that tag data contents are as pictured in below
figure, and the setup parameters for the Transmit header
and trailer are as follow:
 TXHDR0x5B = ASCII [
 TXTRL0x5D = ASCII ]
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation

“R” Read Tag
Read tag. There are eight available read commands:

Ra00bb
Read block “bb” a single time. If in dual antenna mode
(ANTENNA3), specify which antenna to use, “a”= 1 or 2.
The example below will read block 05 of the tag in antenna’s field.
Example
ASCII
HEX
Command
R0005
52,30,30,30,35
Response
[,NUL,5,5,5,5,] 5B,00,35,35,35,35,5D
Note the null character ISO error flag of (0x00) is sent first after the
transmit header and indicates that no errors occurred, if in dual
antenna mode the first character after the transmit header would have
been either a “1” or “2” depending on which antenna read the tag after
which the ISO error flag would be sent.
Response from above command when no tag is being read is shown
below.
Example
ASCII
HEX
Command
R0005
52,30,30,30,35
Response
[NO TAG]
5B,4E,4F,20,54,41,47,5D
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Modes of Operation

Ra01bbnn
Read block bb and nn additional blocks a single time. If in dual
antenna mode (ANTENNA3), specify which antenna to use, “a”= 1
or 2.
The example below will start reading at block 00 of the tag and
also read 4 additional blocks of data starting from the first block
after 00.
Example
ASCII
HEX
Command
R010004
52,30,31,30,30,30,34
Response
[,NUL,0,0,0,0,1,1
,1,1,2,2,2,2,3,3,3
,3,4,4,4,4,]
5B,00,30,30,30,30,31,31,31,31,32,32……………3
4,5D
Response from above command when no tag is being read is
shown below.
Example
Command
ASCII
HEX
R010004
52,30,30,30,35
Response
[NO TAG]
5B,4E,4F,20,54,41,47,5D

Ra02bbuuuuuuuu
Read block bb from tag with UID uuuuuuuu a single time. If in
dual antenna mode (ANTENNA3), specify which antenna to use,
“a”= 1 or 2.
Note that, since the UID is specified, an ISO15693 tag will
respond even if it is in Quiet mode.
The example below will read block 05 from a tag with the UID of
E0,07,00,00,06,A6,B8,0B,.
Example
ASCII
HEX
Command R0205 (Tag
52,30,32,30,35,0B,B8,A6,06,00,00,07,E0
UID omitted
due to many
ASCII NP
characters)
Response [,NUL,5,5,5,5,] 5B,00,35,35,35,35,5D
Response from above command when no tag is being read is
shown below.
Example
Accu-Sort Systems, Inc.
ASCII
HEX
RFR-02 Installation Guide
Modes of Operation
Command R0205 (Tag UID
omitted due to
many ASCII NP
characters)
Response [NO TAG]

52,30,32,30,35,0B,B8,A6,06,00,00,0
7,E0
5B,4E,4F,20,54,41,47,5D
Ra03bbnnuuuuuuuu
Read block bb and nn additional blocks from tag with UID
uuuuuuuu a single time. If in dual antenna mode (ANTENNA3),
specify which antenna to use “a”= 1 or 2.
Note that, since the UID is specified, the tag will respond even if it
is in Quiet mode.
The example below will start reading at block 00 of the tag with
the UID of E0,07,00,00,06,A6,B8,0B, and will also read 4
additional blocks of data starting from the first block after 00.
Example
ASCII
Command R030004 (Tag
UID omitted due
to many ASCII
NP characters)
Response
[,NUL,0,0,0,0,1,1,1,1,
2,2,2,2,3,3,3,3,4,4,4,4
,]
HEX
52,30,33,30,30,30,34,0B,B8,A6,06,00,00,07,
E0
5B,00,30,30,30,30,31,31,31,31,32,32………
……34,5D
Response from above command when no tag is being read is
shown below.
Example
ASCII
Command R030004 (Tag
UID omitted due
to many ASCII
NP characters)
Response [NO TAG]
HEX
52,30,33,30,30,30,34,0B,B8,A6,06,0
0,00,07,E0
5B,4E,4F,20,54,41,47,5D
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RFR-02 Installation Guide
Modes of Operation

Ra04bb
Continuous read and transmit of block bb (the same tag will be
read repeatedly). If in dual antenna mode (ANTENNA3), specify
which antenna to use, “a”= 1 or 2.
Block bb is read continually from whatever tag is in the antenna
field until the RFR-02 receives an “E” end continuous command
(no RXHDR or RXTRL is required). This is most useful for a
stream of tags passing a fixed antenna. Note that this command
will continually send data if a tag is read, care should be taken by
the end user to appropriately manage the host system receive
buffers.
The example below will continually read and transmit block 01 of
the tag that is in antenna’s field.
Example
ASCII
HEX
Command
R0401
52,30,34,30,31
Response
[NUL,1,1,1,1,]
5B,00,31,31,31,31,5D
Response from above command when no tag is being read is
shown below.
Note if no tag is in the antenna field there will be no data sent by
the RFR-02, this helps reduce the amount of data that the host
system needs to handle.
Example
ASCII
Command
R0401
Response
NA

HEX
52,30,34,30,31
NA
Ra05bbnn
Continuous read and transmit of block bb and following nn blocks.
If in dual antenna mode (ANTENNA3), specify which antenna to
use, “a”= 1 or 2.
Block bb and the subsequent nn blocks are read continually from
whatever tag is in the antenna field until the RFR-02 receives an
“E” (no RXHDR or RXTRL is required). This is most useful for a
stream of tags passing a fixed antenna.
The example below will start reading at block 00 and will also read
4 additional blocks of data starting from the first block after 00,
while continually transmitting data.
Accu-Sort Systems, Inc.
Example
ASCII
HEX
Command
R050004
52,30,35,30,30,30,34
RFR-02 Installation Guide
Modes of Operation
Response
[,NUL,0,0,0,0,1,1,1,1,
2,2,2,2,3,3,3,3,4,4,4,
4,]
5B,00,30,30,30,30,31,31,31,31,32,32………
……34,5D
Response from above command when no tag is being read is
shown below.
Note if no tag is in the antenna field there will be no data sent by
the RFR-02, this helps reduce the amount of data that the host
system needs to handle.
Example
ASCII
Command
R050004
Response
NA

HEX
52,30,34,30,31
NA
Ra06bb
Continuous read of block bb, transmit only once. If in dual
antenna mode (ANTENNA3), specify which antenna to use, “a”= 1
or 2.
Block bb is read continuously from whatever tag is in the field,
until the RFR-02 receives an “E” (no RXHDR or RXTRL is
required). However, unlike the 04 option, the data is only
transmitted once, when it changes (see note below). This is most
useful for a stream of tags passing a fixed antenna where the
sending of redundant data is not necessary and the tags being
read have different data in the block of tag memory that was
specified by the read command.
NOTE: Versions of RFR-02 firmware up to and including
R02STD05.hex SII require the contents of two successive
tags be different for the specified tag memory block to be
read. If the contents are identical the first tag passing over
the antenna will read while the second will not. Versions of
firmware after R02STD05 do not require successive tags
to have different data contents but need the “E” command
to be sent between reads of different tags with the same
data.
The example below will continually read but transmit only once
block 01 of the tag that is in the antenna’s field.
Example
ASCII
HEX
Command
R0601
52,30,36,30,31
Response
[NUL,1,1,1,1,]
5B,00,31,31,31,31,5D
Response from above command when no tag is being read is
shown below.
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Modes of Operation
Note if no tag is in the antenna field there will be no data sent by
the RFR-02, this helps reduce the amount of data that the host
system needs to handle.
Example
ASCII
Command
R0601
Response
NA

HEX
52,30,36,30,31
NA
Ra07bbnn
Continuous read of block bb and next nn blocks, transmit only
once. If in dual antenna mode (ANTENNA3), specify which
antenna to use, “a”= 1 or 2.
Block bb and the next nn blocks are read continuously from
whatever tag is in the field, until the RFR-02 receives an “E” (no
RXHDR or RXTRL is required). However, unlike the 05 option,
the data is only transmitted once, when it changes. This is most
useful for a stream of tags passing a fixed antenna where the
sending of redundant data is not necessary and the tags being
read have different data in the block of tag memory that was
specified by the read command.
NOTE: Versions of RFR-02 firmware up to and including
R02STD05.hex SII require the contents of two successive
tags be different for the specified tag memory block to be
read. If the contents are identical the first tag passing over
the antenna will read while the second will not. Versions of
firmware after R02STD05 do not require successive tags
to have different data contents but need the “E” command
to be sent between reads of different tags with the same
data.
NOTE: There is a limit of 20 characters (a total of 5
blocks) in the data read from the tag for this command.
The example below will start reading at block 00 and will also read
4 additional blocks of data starting from the first block after 00, but
will transmit the data only one time.
Example
ASCII
HEX
Command
R070004
52,30,37,30,30,30,34
Response
[,NUL,0,0,0,0,1,1,1,1,
2,2,2,2,3,3,3,3,4,4,4,
4,]
5B,00,30,30,30,30,31,31,31,31,32,32………
……34,5D
Response from above command when no tag is being read is
shown below.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
Note if no tag is in the antenna field there will be no data sent by
the RFR-02, this helps reduce the amount of data that the host
system needs to handle.
Example
ASCII
Command
R070004
Response
NA

HEX
52,30,37,30,30,30,34
NA
“S” Carrier Off (silence).
Response shown below from above command.
Example
ASCII
Command
Response
NA
HEX
53
NA
This turns off the RF carrier (unit’s transmitter turned off). Note
that the antenna does not need to be specified, even in dual
antenna mode and there is no response back from the unit.
This can be useful after an Inventory command, since turning off
the carrier will clear the “Quiet” mode of the tag.

“W” Write to tag.
There are two available options:

Wa00bbdddd
Write data dddd to block bb. If in dual antenna mode
(ANTENNA3), specify which antenna to use, “a”= 1 or 2
Note that the data dddd is 4 binary bytes (each byte can have any
value, 0x00 to 0xFF). While the examples in this document use
ASCII characters for clarity, this is not a requirement.
If the write is successful, the response will be TXHDR (if any), the
antenna (if in dual antenna mode), “YW” (Yes Write), and TXTRL
(if any).
An unsuccessful write can reply with any of the following errors:
NO TAG
NO ANT
COLL
MISREAD
NW
The first four are normal RFR-02 error messages, the fifth is
based on the ISO Flag Byte, and probably represents trying to
write to a locked block.
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Modes of Operation
The example below will successfully write “ABCD” to block 05 of
the tag.
Example
ASCII
HEX
Command
W0005ABCD
57,30,30,30,35,41,42,43,44
Response
[YW]
5B,59,57,5D
The example below will try and write “ABCD” to block 05 of the
tag, but no tag will be present in the antenna’s field.
Example
ASCII
HEX
Command
W0005ABCD
57,30,30,30,35,41,42,43,44
Response
[NO TAG]
5B,4E,4F,20,54,41,47,5D
The example below will try and write “ABCD” to block 05 of the
tag, but this block will be locked. Note the character “^R” (0x12) is
the ISO Flag Byte and in this instance tells you that the block has
been locked, so it’s memory contents cannot be changed.
Example
Command
ASCII
HEX
W0005ABCD
57,30,30,30,35,41,42,43,44
Response
[NW,DC2(Non
Printable)]
5B,4E,57,12,5D

Wa02bbuuuuuuuudddd
Write data bytes dddd to block bb of tag with UID uuuuuuuu. If in
dual antenna mode (ANTENNA3), specify which antenna to use,
“a”= 1 or 2.
Note that the data dddd is 4 binary bytes (each byte can have any
value, 0x00 to 0xFF). While the examples in this document use
ASCII characters for clarity, this is not a requirement.
Note that, since the UID is specified, the tag will respond even if it
is in Quiet mode.
If the write is successful, the response will be TXHDR (if any), the
antenna (if in dual antenna mode), “YW” (Yes Write), and TXTRL
(if any).
An unsuccessful write can reply with any of the following errors:
NO TAG
NO ANT
COLL
MISREAD
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Modes of Operation
NW
The first four are normal RFR-02 error messages, the fifth is
based on the ISO flagbyte, and probably represents trying to write
to a locked block.
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RFR-02 Installation Guide
Modes of Operation
The example below will successfully write “ABCD” to block 05 of a
tag with a UID of E0,07,00,00,06.A6,B8,0B. Note tag UID sent in
reverse.
Example
ASCII
HEX
Command W0205,(Tag UID
57,30,32,30,35,0B,B8,A6,06,00,00,0
omitted due to
7,E0,41,42,43,44
many ASCII NP
characters),ABCD
5B,59,57,5D
Response [YW]
The example below will try and write “ABCD” to block 05 of a tag
with a UID of E0,07,00,00,06.A6,B8,0B, but no tag will be present
in the antenna’s field. Note tag UID sent in reverse.
Example
ASCII
HEX
57,30,32,30,35,0B,B8,A6,06,00,00,0
Command W0205,(Tag UID
omitted due to
7,E0,41,42,43,44
many ASCII NP
characters),ABCD
5B,4E,4F,20,54,41,47,5D
Response [NO TAG]
The example below will try and write “ABCD” to block 05 of a tag
with a UID of E0,07,00,00,06.A6,B8,0B, but this block will be
locked. Note tag UID sent in reverse.
Example
ASCII
HEX
Command W0205,(Tag UID
57,30,32,30,35,0B,B8,A6,06,00,00,0
omitted due to
7,E0,41,42,43,44
many ASCII NP
characters),ABCD
Response
Accu-Sort Systems, Inc.
[NW,DC2(Non
Printable)]
5B,4E,57,12,5D
RFR-02 Installation Guide
Modes of Operation
Serial Mode Read Rate Diagnostic Commands

Ra96bbnn
Read rate test. If in dual antenna mode (ANTENNA1 or
ANTENNA3), specify which antenna to use, “a”= 1 or 2.
This read rate test reads block bb and the next nn blocks 100
times, and counts the number of successful and unsuccessful
reads.
The example below will start reading at block 00 and will also read
9 additional blocks of data starting from the first block after
00.Each block will be read 100 times. The number of successful
and unsuccessful reads if any will be displayed.
Example
ASCII
Command R960009
Response
[VALID,SP,READS:SP,
100/100,SP(100.0%)SP
,SP CR,LF]
HEX
52,39,36,30,30,30,39
5B,56,41,4C,49,44,2052,45,41,44,53,3A,20,
31,30,30,2F,31,30,30,20,28,31,30,30,2E,30,
25,29,20,20,OD,OA,5D
Response from above command with no tag being read is shown
below.
Example
Command
ASCII
Response
[VALID,SP,READS:SP,
0/100,SP,(0.0%)SP,SP
100,SP,NOTAGS,SP,S
P,CR,LF ]
R960009
HEX
52,39,36,30,30,30,39
5B,56,41,4C,49,44,20,52,45,41,44,53,3A,20
,30,2F,31,30,30,20,28,30,2E,30,25,29,20,20
,31,30,30,20,4E,4F,54,41,47,53,20,20,OD,O
A,5D
Note SP is shown in the ASCII response to show where spaces
are inserted within the response message; also note the CR and
LF before the TXTRL.
If there are read errors, they will be reported along with the valid
read information. For example, in single antenna mode
R960009
Might return
[VALID READS: 85/100 (85.0%) 4 NOTAGS 5
MISREADS 6 COLLISIONS]
Note that Ra960000 does the same test as Ra99 with extended
result reporting.
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RFR-02 Installation Guide
Modes of Operation

Ra97bb
Read rate test. If in dual antenna mode (ANTENNA3), specify
which antenna to use, specify which antenna to use, “a”= 1 or 2.
This read rate test reads blocks 0 to bb 100 times each, and
counts the number of successful and unsuccessful reads.
The example below will read block 00 thru 09 100 times per each
block with a tag in the antenna’s field. The number of successful
and unsuccessful reads of the entire 1000 reads will be displayed.
Example
ASCII
Command
R9709
Response
[VALID,SP,READS:SP,
1000/1000,SP(100.0%)
SP,SP CR,LF]
HEX
52,39,37,30,39
5B,56,41,4C,49,44,2052,45,41,44,53,3A,20,
31,30,30,30,2F,31,30,30,30,,20,28,31,30,30
,2E,30,25,29,20,20,OD,OA,5D
Response from above command with no tag being read is shown
below.
Example
ASCII
Command
R9709
Response
[VALID,SP,READS:SP,
0/1000,SP,(0.0%)SP,S
P1000,SP,NOTAGS,S
P,SP,CR,LF ]
HEX
52,39,37,30,39
5B,56,41,4C,49,44,20,52,45,41,44,53,3A,20
,30,2F,31,30,30,30,20,28,30,2E,30,25,29,20
,20,31,30,30,30,20,4E,4F,54,41,47,53,20,20
,OD,OA,5D
Note the CR/LF before the TXTRL.
If there are read errors, they will be reported along with the valid
read information.
Note that Ra9700 does the same testing as Ra99 with extended
result reporting.

Ra98bb
Read rate test. If in dual antenna mode (ANTENNA3), specify
which antenna to use, “a”= 1 or 2. This read rate test reads block
bb 100 times and counts the number of successful and
unsuccessful reads.
The example below will read block 09 100 times with a tag in the
antenna’s field. The number of successful and unsuccessful reads
will be displayed.
Example
ASCII
Command R9809
Response
Accu-Sort Systems, Inc.
[VALID,SP,READS:SP,
100/100,SP(100.0%)SP
,SP CR,LF]
HEX
52,39,38,30,39
5B,56,41,4C,49,44,20,52,45,41,44,53,3A,20
,31,30,30,2F,31,30,30,20,28,31,30,30,2E,30
,25,29,20,20,OD,OA,5D
RFR-02 Installation Guide
Modes of Operation
Response from above command with no tag being read is shown
below.
Example
ASCII
Command R9809
Response
[VALID,SP,READS:SP,
0/1000,SP,(0.0%)SP,S
100,SP,NOTAGS,SP,S
P,CR,LF ]
HEX
52,39,38,30,39
5B,56,41,4C,49,44,20,52,45,41,44,53,3A,20
,30,2F,31,30
30,20,28,30,2E,30,25,29,20,20,31,30,30,20,
4E,4F,54,41,
47,53,20,20,OD,OA,5D
Note the CR/LF before the TXTRL.
R9809
Might also return
[VALID READS: 88/100 (88.0%) 3 NOTAGS 4
MISREADS 5 COLLISIONS]
Note that Ra9800 does the same testing as Ra99 with extended
result reporting.

Ra99
Read rate test. If in dual antenna mode (ANTENNA3), specify
which antenna to use, “a”= 1 or 2. This read rate test reads block
0 100 times and counts the number of successful reads.
The example below will read block 00 100 times with a tag in the
antenna’s field. The number of successful reads will be displayed.
Example
ASCII
Command
R99
Response
[VALID,SP,READS:SP,
100/100,CR,LF]
HEX
52,39,39
5B,56,41,4C,49,44,20,52,45,41,44,53,3A,20
,31,30,30,2F,31,30,OD,OA,5D
Response from above command with no tag being read is shown
below.
Example
ASCII
HEX
Command
R99
52,39,39
Response
[VALID,SP,READS:SP,
0/100,CR,LF]
5B,56,41,4C,49,44,20,52,45,41,44,53,3A,20
,30,2F,31,30,30,OD,OA,5D
Note the CR/LF but before the TXTRL.
If there are read errors, they are not reported.
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Modes of Operation
Quick Reference Command Chart
Command Antenna
Option
Block #
00
01
02
03
04
05
06
07
bb
bb
bb
bb
bb
bb
bb
bb
96
97
98
99
bb
bb
bb
00
02
bb
bb
00
02
bb
bb
Additional Block
UID
Data
nn
nn
uuuuuuuu
uuuuuuuu
nn
nn (max 20
bytes)
nn
Accu-Sort Systems, Inc.
uuuuuuuu
uuuuuuuu
uuuuuuuu
01
02
dddd
dddd
RFR-02 Installation Guide
Using the RFR-02 Setup Program
Using the RFR-02 Setup Program
Make sure the RFR-02 reader is mounted properly.
Attach a DB9 RS232 cable between the setup port of the RFR-02
reader and your PC’s COMM port.

Cable Wiring:



Pin 2 to 2
Pin 3 to 3
Pin 5 to 5
Power up the RFR-02 and the PC.
Using the Software
When the PC has booted, double click the RFR-02 Setup icon on the
desktop.
NOTE: Be sure the RFR-02 has been powered on for at
least 10 seconds before clicking on the Reader Setup or
Tag Operations button!
The window shown below will appear on the screen.
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Using the RFR-02 Setup Program
System Setup
Use the System Setup window to select a COM port to communicate
with the RFR-02 Reader, as well as the baud rate to be used.
To get to the RFR-02 System Setup window, click System Setup on
the RFR-02 Setup window.
The software defaults to COM1 and a baud rate of 19200 8/N/1.
When the RFR-02 Reader is put into default mode, it will
communicate at 19200 8/N/1.
To change the COM port used:
1. Click on the COM dropdown list and choose a new port.
2. Click OK.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Using the RFR-02 Setup Program
To change the baud rate:
1. Click on the Baud dropdown list and choose a new baud rate from
those available.
2. Click OK.
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Using the RFR-02 Setup Program
Reader Setup
Use the Reader Setup window to view or change setting and reset
RFR-02 Reader defaults.
To get to the RFR-02 Reader Setup window, click Reader Setup on
the RFR-02 Setup window.
NOTE: If any errors occur while opening this window, click
Finished and make sure that the System Setup is correct.
To change the setup of the RFR-02 Reader:
Click View/Change Settings. A tabbed window will open that
allows you to change all the parameters of the reader. The
firmware version is displayed in the title bar. See Setup Mode
Parameters in this manual for further details on the individual
settings.
To return the RFR-02 to its factory default settings:
Click Default Unit.
To save the parameters inside the RFR-02 so that they will be
used even after the unit has been reset:
Click Save Settings.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Using the RFR-02 Setup Program
Communications Tab
The Communications Tab on the View/Change Settings (the
firmware is displayed in the header) window allows the user to change
the baud rate and communications port/protocol used by the reader.
To change the Com port used:
1. Click on the Comm dropdown list to choose a new port and
protocol combination.
2. Click OK.
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Using the RFR-02 Setup Program
To change the Baud rate used:
1. Click on the Baud dropdown list and choose a new baud rate.
2. Click OK.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Using the RFR-02 Setup Program
I/O Tab
The I/O Tab on the View/Change Settings window allows the user to
configure the Triggers, Outputs, and their respective timers. From
this menu the user can also configure the Match string, # of bytes to
match, BlockNum and Blocks.
NOTE: Be aware that the unit will not operate properly if
BlockNum + Blocks is greater than 63!
To change trigger settings:
1. Click on the Trigger1 or Trigger2 dropdown list and choose a
new setting. See Setup Mode Parameters in this manual for
further details on the individual settings.
2. Click OK.
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Using the RFR-02 Setup Program
To change output settings:
1. Click on the Output1 or Output2 dropdown list and choose a new
setting. See Setup Mode Parameters in this manual for further
details on the individual settings.
2. Click OK.
Change the Match, BlockNum, # of bytes to match, Blocks, and
Timer field settings as needed. See Setup Mode Parameters in this
manual for further details on the individual settings.
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Using the RFR-02 Setup Program
Headers/Trailers Tab
Use the Headers/Trailers Tab to configure transmit and receive
headers and trailers used by the RFR-02. They are one character
each maximum and must be entered as the decimal equivalent of the
character. Consult an ASCII chart for the proper value (See appendix
A).
To change the Transmit Header, Transmit Trailer, Receive
(Header), and Receive Trailer settings:
1. Input each field value as needed.
2. Click OK.
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Using the RFR-02 Setup Program
Antenna Tab
Use this tab to set the RFR-02 to operate in single or dual antenna
mode, and the how it will switch between active antennas.
To adjust the antenna mode setting:
1. Click on the Antenna dropdown list and select the desired mode.
2. Enter a timer value as needed in the Timer field.
3. Click OK.
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Using the RFR-02 Setup Program
Tag Operation
This section of the program provides an interface to the tag data. The
user can read from and write to a tag.
To read from the tag:
1. Select the block you wish to begin reading from the Start
dropdown list located in the Reading group.
2. Select the last block you wish to read from the End dropdown list.
3. Click Read to read the data from the tag. If successful, the data
will appear in the table on the left side of the window.
To write data to the tag:
1. Select the beginning block you want to write to from the Start
dropdown list located in the Writing group.
2. Type the data you wish to write to the tag in the Data text field.
3. Click Write to send the data to the tag. If the write was successful,
you should see the written data in the table on the left side of the
window.
NOTE: The RFR-02 will write to as many blocks as
necessary to fit the intended message. For example
writing “1234567890” starting at block 00 will overwrite
blocks 0-2.
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Using the RFR-02 Setup Program
Upgrading the RFR-02 Firmware
Before attempting to download new firmware to the RFR-02, it is a
good idea to make a note of the current setup parameters. The
parameters will return to default settings when the new code is
installed.
To update the firmware follow these steps:
1. Attach a DB9 RS232 cable between the setup port of the reader
and your PC’s COMM port.
Cable Wiring: Pin 2 to 2
Pin 3 to 3
Pin 5 to 5
2. Open the RFR-02 Setup program shown below.
3. Click System Setup and confirm the following settings.


COMM: Set to Comm Port of your PC.
BAUD: 19200 N/8/1
Click OK when complete.
4. Click Update Firmware.
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5. From the resulting window, click Choose File and then browse for
file you wish to download. An example of an update file name
would be R02STDxx.hex.
6. Make sure the power to the RFR-02 is turned off.
7. Click Download and then immediately apply power to the RFR-02
unit, the status bar next to the Download button should start to
increment. If it doesn’t, click Stop and go back to step 6.
Approximate download time is 2 minutes.
8. Click OK when Firmware Download Complete message appears.
9. Click Finished when you are done downloading units.
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Using the RFR-02 Setup Program
Timing for reading data from Tag
The following list of times is based upon an unaddressed read with no
headers or trailers used. The times shown are total reader through put
times and are based upon when the reader receives the first character
of a command from a host to when the reader sends the last
character of the requested data. All recorded times are with a
stationary tag centered on the antenna.
COMM BAUD RATE
Command
R0000
R010009
R010019
R010029
R010039
R010049
R010063
# of
Blocks
(bytes)
19200
Time
(ms)
38400
Time
(ms)
57600
Time
(ms)
10
42
76
118
171
234
342
30
61
103
155
220
326
27
58
100
152
216
323
1 (4)
10 (40)
20 (80)
30 (120)
40 (160)
50 (200)
64 (256)
Timing for writing data to Tag
The following list of times is based upon an unaddressed read with no
headers or trailers used. The times shown are total reader through put
times and are based upon when the reader receives the first character
of a command from a host to when the reader sends the last
character of the YW response which indicates that data has been
correctly written to the tag. All recorded times are with a stationary tag
centered on the antenna. Please note that at the present time the ISO
15693 tag only supports the single block write command. For the
timing needed to write multiple blocks of data multiply the time listed
below by the number of blocks to write, remember to factor in any
latency associated with the Host controller. The example below shows
the command to write the ASCII data FFFF to block 01 of the tag.
COMM BAUD RATE
Command
W0001FFFF
# of
Blocks
(bytes)
1 (4)
19200
38400
57600
Time
(ms)
Time
(ms)
Time
(ms)
23
21
26
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Troubleshooting
Troubleshooting
Reader not responding to serial commands:
1. Verify the power indicator is lit, if not apply power to the unit.
2. Verify the serial communications indicator flashes when a byte is
sent
3. Check communications cabling.
4. Make sure unit is configured to work on the port and baud rate
that you are using.
5. Verify you are using the correct headers and trailers and both
Trigger settings are (0).
NOTE: See Setup mode of operation for further details on
configuring unit.
Unable to read a Tag present in the field (Tag Comm indicator
does not light):
1. Check antenna cabling.
2. Ensure the antenna is not near any metal surfaces or sources of
EMI.
3. Check antenna indicator ensuring that it matches port connected
to antenna.
4. Make sure protocol is correct for the tag type being used.
5. If using a terminal emulation program ensure that printable
characters are programmed into tag.
6. Ensure that antenna is tuned properly using Complex Impedance
Analyzer, Accu-Sort part #1000052875.
7. Ensure that tag is not being detuned by article that it is attached
to. Items such as metal and conductive plastics that contain
carbon will detune tag and reduce its performance. Items that are
carried within article that tag is attached to may also lead to
detuning of tag.
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Troubleshooting
Reader does not respond to a trigger
1. Verify Trigger cabling is correct.
2. If using Non-Isolated inputs, be aware the trigger is active low and
should be connected to an open collector type drive circuit. If
using isolated inputs you must provide both positive and negative
voltage connections.
3. Verify that the Trigger you are using is set up properly.
4. Verify Trigger signal is asserted for more than 10ms to overcome
internal debounce.
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Glossary
Glossary
ACK - A control character sent to acknowledge that a transmission block has been received.
active/passive device - In 20mA current loop communications, a device capable of providing the
current for the loop (active) and a device that draws the current from the equipment it is connected to
(passive).
Active tag- An RFID tag that has a transmitter to send back information, rather than reflecting back a
signal from the reader, as a passive tag does. Active tags generally use a battery to transmit a signal to
a reader. However, some tags can gather energy from other sources.
address - A unique designation for the location of data or the identity of a smart device; allows each
device on a single communications line to respond to its own message.
alphanumeric - The character set which contains letters, digits and other characters such as
punctuation marks.
Amplitude- The maximum absolute value of a periodic curve measured along its vertical axis (the
height of a wave, in layman's terms).
Amplitude modulation-. Changing the amplitude of a radio wave. A higher wave is interpreted as a 1
and a normal wave is interpreted as a zero. By changing the wave, the RFID tag can communicate a
string of binary digits to the reader.
ANSI (American National Standards Institute) - The principle standards development group in the
U.S. A non-profit, non-governmental group supported by over 1000 trade organizations, professional
societies, and companies. Member body to the ISO (International Standards Organization).
Antenna- An RFID tag antenna is the conductive element that enables the tag to send and receive
data. Passive, low- (135 kHz) and high-frequency (13.56 MHz) tags usually have a coiled antenna that
couples with the coiled antenna of the reader to form a magnetic field. UHF tag antennas can be a
variety of shapes. Readers also have antennas which are used to emit radio waves. The RF energy
from the reader antenna is "harvested" by the antenna and used to power up the microchip, which then
changes the electrical load on the antenna to reflect back its own signals.
Antenna gain- In technical terms, the gain is the ratio of the power required at the input of a loss-free
reference antenna to the power supplied to the input of the given antenna to produce, in a given
direction, the same field strength at the same distance. Antenna gain is usually expressed in decibels
and the higher the gain the more powerful the energy output. Antennas with higher gain will be able to
read tags from farther away.
ASCII (American Standard Code for Information Interchange) - Pronounced ask-ee. A seven bit
plus parity code established by ANSI to achieve compatibility between data services.
asynchronous transmission - Transmission in which the time intervals between transmitted
characters may be of unequal length. Transmission is controlled by start and stop bits at the beginning
and end of each character.
baud rate - A unit used to measure communications speed or data transfer rate; represents the
number of discrete conditions or events per second.
BCC (Block Check Character) - Used to check transmission accuracy, a character transmitted by the
sender after each message block and compared with a block check character computed by the
receiver.
bed width - The width of the conveyor bed measured in inches.
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BEL - A control character that is used when there is a need to call for attention; it may control alarm or
attention devices.
belt width - The width of the conveyor belt measured in inches.
bit (binary digit) - The contraction of binary digit, the smallest unit of information in the binary system;
a one or zero condition.
bottom read - When the antenna or scanner is mounted under the conveyor to read codes on the
bottom of the boxes or on the front or back of the boxes. If used there is not enough clearance for a
standard front or back read.
BPS (Bits per Second) - Unit of data transmission rate. See baud rate.
bridge - An interface between links in a communication network that routes messages from one link to
another when a station on one link addresses a message to a station on another link.
buffer - A temporary storage device used to compensate for a difference in data rate and data flow
between two devices (typically M).
bus - An internal pathway along which electronic signals travel between the components of an
electronic device.
button - A graphic user interface component that allows users to select a given software function.
Instead of physically pressing a button, the user simply clicks on the desired button to access a menu,
tab screen, or function.
byte - A binary element string functioning as a unit, usually shorter than a computer "word." Eight-bit
bytes are most common. Also called a "character."
capture count - The number of consecutive identical valid decodes that result in a valid read.
cart - A signal, typically provided by a photoeye or proximity switch, that informs the scan head of the
presence of an object within its reading zone. Also called trigger.
communications protocol - The rules governing exchange of information between devices connected
together on the same communications line.
configuration - The arrangement and interconnection of hardware components within a system, and
the hardware (switch and jumper) and software selections that determine the operating characteristics
of the system.
configuration file - The set of attributes which belongs to and defines the operation of a single
physical device.
conveyor speed - The speed that the conveyor is moving measured in feet per minute. Conveyor
speed directly impacts the time that the code is in front of the scanner; therefore, it affects the number
of reads that are possible.
CR (Carriage Return) - An ASCII or EBCDIC control character that moves the cursor or print
mechanism to the left margin.
CTS (Clear to Send) - The modem interface signal that indicates to the DTE device to begin
transmission.
current loop - Method of interconnecting terminals and transmitting signals, whereby a mark (binary 1)
is represented by current on the line and a space (binary 0) is represented by the absence of current.
decoder - As part of an reading system, the electronic package which receives the signals from the
reader, performs the algorithm to interpret the signals into meaningful data and provides the interface to
other devices.
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Glossary
decoder logic - The electronic package that receives signals from the reader, interprets the signals
into useful data, and provides the interface to other devices.
default(s) - Original parameters as programmed by Accu-Sort at the factory.
depth of field - The distance between the maximum and minimum plane in which a tag can be read.
DIP switches - Switches that are the approximate size of an integrated circuit.
downloading - The process of sending configuration parameters, operating software or related data
from a central source to remote stations.
drop-down list, menu - A graphical user interface component that allows the user to select from a list
of options that are displayed when a specific function has been selected. This options list drops down
from the selected function.
DSR (Data Set Ready) - An RS232 modem interface control signal which indicates that the terminal is
ready for transmission.
DTR (Data Terminal Ready) - Modem interface signal which alerts the modem that the DTE device is
ready for transmission.
duplex transmission - See full and half duplex.
EDI (Electronic Data Interchange) - A method by which data is electronically transmitted from one
point to another.
EIA-232 - Interface between data terminal equipment and data communication equipment employing
serial binary data interchange.
EIA-422 - Electrical characteristics of balanced-voltage digital interface circuits.
EIA-485 - The recommended standard of the Electronic Industry Association that specifies the electrical
characters of generators and receivers for use in balanced digital multi-point systems.
ENQ (Enquiry) - A transmission control character used as a request for a response from a remote
station. (^E)
error - A discrepancy between a computed, observed or measured value or condition and the true,
specified or theoretically correct value or condition.
ESC (Escape) - A control character which is used to provide additional control functions. It alters the
meaning of a limited number of continuously following bit combinations. (^[)
ETX (End of Text) - A transmission control character that terminates a text.
even parity - A data verification method in which each character must have an even number of on bits.
expansion bus - Allows the microprocessor to communicate with controllers for peripheral devices,
such as a network card or an internal modem.
far distance - The distance (in inches) from the face of the scanner to the farthest point at which a
code can be successfully read.
feet per minute (FPM) - Typically used to define the speed of a conveyor. Conveyor speed may also
be defined in meters per second.
flying lead - A lead that exits the back of the connector hood on the outside of the cable jacket. It is
normally attached to the drain wire or shield and connected to the chassis of the switch, modem, etc. It
can also be a hardware control lead.
Frequency- The number of times a signal executes a complete cycle through its maximum and
minimum values and returns to the same value.
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full duplex (FDX) - Simultaneous, two-way, independent transmission in both directions.
gateway - A device used to connect networks using different protocols so that information can be
passed from one system or network to the other(s).
gateway address - Like all other devices on a network, the device serving as the gateway must also
have an IP address so that devices wishing to communicate with devices outside its own network can
fine the gateway which will forward its data. Like all other addresses, it is displayed in the dotteddecimal format.
half duplex (HDX) - Transmission in either direction, but not simultaneous.
handshaking - Exchange of predetermined signals between two devices establishing a connection.
Usually part of a communications protocol.
hardware cart - This is an electrical signal from a relay, photoeye, or proximity switch indicating that an
object is passing by the scanner.
Harvesting- A term sometimes used to describe the way passive tags gather energy from an RFID
reader’s antenna.
header - A means of identifying the beginning of a message to be sent to the host. One example is
 or Start of Text.
hexadecimal - A base-16 numbering system that uses the symbols 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F.
High-frequency- From 3 MHz to 30 MHz. High-frequency RFID tags typically operate at 13.56 MHz
and can be read from less than 3 feet away and transmit data faster than low-frequency tags. But they
consume more power than low-frequency tags.
host - 1) A central controlling computer in a network system. 2) Any device on a network system that
provides a controlling function to another device on the network. 3) Any intelligent device for which
another device is providing a communication interface to a network.
induct photoeye - The cart cycle begins when the start of cart photoeye is blocked and continues until
the cart photoeye is unblocked. Blocking the induct photoeye causes relay decisions and data
communication. For this placement the distance between the cart and induct photoeyes must be less
than the minimum box size plus the minimum box spacing.
Inlay- An RFID microchip attached to an antenna and mounted on a substrate. Inlays are essentially
unfinished RFID labels.
input/output modules - Since many readers are operating in environments that have electrical noise
problems, it is helpful to have equipment electrically isolated from other equipment. The standard
method for isolating inputs and outputs is through the use of optically isolated input/output modules.
These flexible modules allow the reader to control high voltage outputs that are susceptible to noise.
Since they are isolated from each other the noise is not picked up in the scanner. The modules come in
both input and output versions. The output versions are controlled by a 5VDC input. The output of the
modules can range from 24VAC - 140VAC or 3VDC - 200VDC. Foreign voltage ranges are available.
The maximum current that the modules can supply is limited by the output voltage and the module type.
The input versions are controlled by either a DC or AC input ranging from 3VDC - 32VDC or 90VAC 140VAC. Foreign voltage ranges are available. The output of the modules is a 5VDC level. The
maximum current is limited by the input modules. These output modules are commonly used to control
diverters, alarms, external relays, etc. The input modules can be used for photoeye inputs.
interface - A shared boundary defined by common physical interconnection characteristics, signal
characteristics and meanings of interchanged signals.
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Glossary
I/O - The abbreviation for input/output. The keyboard and a printer, are examples of I/O devices. I/O
activity is different from computational activity. When a program sends a document to the printer, it is
engaging in I/O activity; when the program sorts a list of terms, it is engaging in computational activity.
IP (internet protocol) address - IP address is the numeric address given to a network card which
enables other devices on a network to find it. For readability, this number is displayed in dotted-decimal
format (e.g. 127.0.0.1) as opposed to the binary equivalent (e.g.
01111111000000000000000000000001).
jumper - A wire that connects a number of pins on one end of a cable only, such as looping back
Request to Send from Clear to Send pins 4 and 5.
LAN - The acronym for local area network. A LAN system is usually confined to the same building or a
few nearby buildings, with all equipment linked by wiring dedicated specifically to the LAN.
LCD (Liquid Crystal Display) - A low-power display often used for notebook computers. An LCD
consists of a liquid crystal solution between two sheets of polarizing material. An electric current causes
each crystal to act like a shutter that can open to allow light past or close to block the light.
LED (Light Emitting Diode) - A semiconductor generally made from gallium arsenide, that can serve
as a visible or near infrared light source when voltage is applied continuously or in pulses. LEDs have
extremely long lifetimes when properly operated.
LF (Line Feed) - An ASCII control character that moves the cursor or print mechanism to the next line.
(^J)
light curtain - A sensing device connected to a system that uses a series of transmitters and receivers
to create a curtain of light that is both 90 degrees and perpendicular to the conveyors direction of travel.
This device is used by the system to detect either the presence and/or the height of packages as they
enter the cameras scanning area.
Low-frequency- From 30 kHz to 300 kHz. Low-frequency RFID tags typical operate at 125 kHz or 134
kHz. The main disadvantages of low-frequency tags are they have to be read from within three feet and
the rate of data transfer is slow.
mA - The abbreviation for milliampere(s).
match - A condition in which decoded data matches data in the match entry.
match entry - An output condition in which decoded data matches and the data in a match entry
configuration.
memory - A computer can contain several different forms of memory, such as RAM, ROM, and video
memory. The term memory is generally used to define RAM. When a computer has 512 MB of memory,
it actually has 512 MB of RAM.
memory address - A specific location, usually expressed as a hexadecimal number, in the computers
RAM.
message - 1) A meaningful combination of alphanumeric characters that establishes the content and
format of a report. 2) In a communication network, the unit of exchange at the application layer.
message buffer - Storage register for the temporary storage of data that allows decoding to continue
while the host is retrieving data from the serial port.
message buffer warning - An output condition that occurs when the message buffer has used a
defined amount of the message buffer.
MHz - The abbreviation for megahertz.
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Glossary
microprocessor - The primary computational chip inside the computer, referred to as the "brain." The
microprocessor contains an arithmetic processing unit and a control unit. Software written for one
microprocessor must usually be revised to run on another microprocessor.
mil - One thousandth of an inch (0.001 inch). Bars and spaces of codes are commonly referred to as
being a certain number of mils wide.
modulo check digit or character - A calculated character within a data field used for error detection.
The calculated character is determined by a modulus calculation on the sum or the weighted sum of the
data field contents.
mouse - A pointing device that controls the movement of the cursor on a screen. Mouse-aware
software allows the user to activate commands by clicking a mouse button while pointing at objects
displayed on the screen.
MTBF - The abbreviation for mean time between failures.
multidrop line - A single communications circuit that interconnects many stations, each of which
contains terminal devices. See EIA-485.
NAK (Negative Acknowledgment) - A control character used to indicate that the previous
transmission block was in error and the receiver is ready to accept retransmissions.
NCDRH (National Center for Devices and Radiological Health) - This organization (a service of the
Food and Drug Administration) is responsible for the safety regulations governing acceptable limitations
on electronic radiation from laser devices. Accu-Sort is in compliance with the NCDRH regulations.
NEMA - In order to rate the quality of an enclosure the National Electrical Manufacturers Association
(NEMA) has developed a system for rating all enclosures. A partial list of the NEMA enclosures is
shown below along with what particles it is designed to restrict.
Ratings
3 - Enclosures are intended for indoor or outdoor use primarily to provide protection
against windblown dust, rain, and sleet, and is undamaged by the formation of ice on the
enclosure.
4 - Enclosures are intended for indoor or outdoor use primarily to provide protection
against windblown dust and rain, splashing water, and hose-directed water; undamaged
by the formation of ice on the enclosure.
4X - Enclosures are intended for indoor or outdoor use primarily to provide protection
against corrosion windblown dust and rain, splashing water, and hose directed water;
undamaged by the formation of ice on the enclosure.
6 - Enclosures are intended for use indoors or outdoors where occasional submersion is
encountered.
12 - Enclosures are intended for indoor use primarily to provide a degree of protection
against dust, falling dirt, and dripping noncorrosive liquids.
13 - Enclosures are intended for indoor use primarily to provide a degree of protection
against dust, spraying of water, oil, noncorrosive coolant.
net mask - A numeric value that is used by devices to determine whether the device it wishes to
communicate with is on the same network. If not, the data must be forwarded via a gateway. May also
be referred to as subnet mask.
network - A series of stations (nodes) connected by some type of communication medium. A network
may be made up of a single link or multiple links.
node - The connection point at which media access is provided.
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Glossary
noise- Unwanted electrical signals or electromagnetic energy found in the operating environment of
RFID equipment. Noise can be caused by other RF devices, electric motors and other machines.
no-match - An output condition in which decoded data does not match an entry in the match code
table.
no-read - When the reader is unable to capture a code as it passes through the scan zone.
non-read - The absence of data at the scanner or camera output after an attempted scan due to no
code, defective code, scanner failure or operator error.
NVC - The acronym for non-valid code. Defines the condition that occurs when an object has been
scanned and no bar code could be decoded. Usually, this indicates that either no code was on the
object or the code was badly damaged and could not be decoded.
odd parity - A data verification method in which each character must have an odd number of on bits.
optimum reading distance - Typically, the center of the depth of field.
output counter - A counter that is associated with each output condition. The counter increments by 1
each time the condition occurs.
trigger or cart - The standard abbreviation for a signal indicating that an object is passing by the
reader is called cart. This signal indicates to the reader to start or stop reading.
trigger or cart cycle - The time during which the reader is attempting to read the bar code.
hardware cart - This is an electrical signal from a relay, photoeye, or proximity switch indicating that an
object is passing by the scanner.
start and end of cart photoeyes - The cart cycle begins when the start of cart photoeye is blocked
and continues until the end of cart photoeye is unblocked. Relay decisions and data communication
take place after the end of cart photoeye is unbroken.
induct photoeyes - The cart cycle begins when the start of cart photoeye is blocked and continues
until the cart photoeye is unblocked. Blocking the induct photoeye causes relay decisions and data
communication. For this placement the distance between the cart and induct photoeyes must be less
than the minimum box size plus the minimum box spacing.
software cart - A serial message from an external device that controls the cart cycle.
self cart - This form of cart requires no input signal. The scanner is continuously attempting to decode
bar codes. When a scanner is in self cart, there is no way of determining if there is a package present
or a no-read.
package spacing - This is the spacing between items on a conveyor. Package spacing is measured
one of two ways: Leading edge of one box to leading edge of the next or trailing edge of one box to
trailing edge of the next. Package spacing is critical to system operations.
parameter - A value or opinion that the user specifies to a program. A parameter is sometimes called a
switch or an argument.
parity bit - A bit that is set at "0" or "1" in a character to ensure that the total number of 1 bits in the
data field is even or odd.
percent good reads - The number of successful reads per refresh period. This is valid only when the
refresh period is set to 0.
peripheral device - An internal or external device, such as a printer, a disk drive, or a keyboard,
connected to a computer.
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photoeye - Used as a presence detector to identify objects in the scanners reading zone. The
photoeye emits a beam and is used with a reflector to create a photoelectric circuit. When the beam is
blocked by an object, breaking the circuit, a signal called CART is sent to the scanner.
polling - A means of controlling devices on a multipoint line.
Programming a tag- Writing data to an RFID tag.
protocol - A formal set of conventions governing the formatting and relative timing of message
exchange between two communicating systems.
pulses per inch (PPI) - Defines the number of pulses per inch of transport travel as provided by the
tachometer.
pulse width - A change from the leading edge of a bar or space to the trailing edge of a bar or space
over time. Pulse width is also referred to as a transition.
queue - A buffer used to hold data in order until it is used or transmitted.
radio frequency (RF) - Non-optical automatic identification devices that use radio waves to transmit
data.
Radio Frequency Identification (RFID)- A method of identifying unique items using radio waves.
Typically, a reader communicates with a tag, which holds digital information in a microchip.
reader- A device used to communicate with RFID tags. The reader has one or more antennas, which
emit radio waves and receive signals back from the tag.
reader field- The area of coverage. Tags outside the reader field do not receive radio waves and can't
be read.
read-only - A read-only file is one that users are prohibited from editing or deleting. A file can have
read-only status if:
Its read-only attribute is enabled.
It resides on a physically write-protected diskette.
It is located on a network in a directory to which the system administrator has assigned readonly rights to the user.
read range- The distance from which a reader can communicate with a tag.
read rate- The number of tags that can be read within a given period.
relay - Relays are simply electrical switches that are typically used to control external diverts, alarms,
etc. Relay types available are FORM A and FORM C. FORM C type relays have both normally open
and normally closed contacts available while FORM A type relays have only normally open contacts
available.
relay output duration - This is the time (in seconds) after the relay is energized that it should be
turned off.
relay output delay - The time lapse between an event and the energizing of the relay.
resolution - The narrowest element dimension which can be distinguished by a particular reading
device or printed with a particular device or method.
response time - The elapsed time between the generation of the last character of a message at a
terminal and the receipt of the first character of the reply. It includes terminal delay and network delay.
RFID tag- A microchip attached to an antenna that is packaged in a way that it can be applied to an
object. The tag picks up signals from and sends signals to a reader. The tag contains a unique serial
number, but may have other information, such as a customers' account number.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Glossary
ROM - The acronym for read-only memory. The computer contains programs essential to its operation
in ROM. A ROM chip retains its contents even after the computer is turned off.
RPM - The abbreviation for revolutions per minute.
RS232 - Interface between data terminal equipment and data communication equipment employing
serial binary data interchange.
RS422 - The Electronic Industries Association standard that specifies the electrical characteristics of
balanced voltage digital interface circuits.
RS485 - The Electronic Industries Association standard that specifies the electrical characters of
generators and receivers for use in balanced digital multipoint systems.
RTS (Request To Send) - An RS232 modem interface signal which indicates that the DTE has data to
transmit.
SCSI - The acronym for small computer system interface. An I/O but interface with faster data
transmission rates than standard ports. Up to seven devices can be connected to one SCSI interface.
self cart - This form of cart requires no input signal. The scanner is continuously attempting to decode
bar codes. When a scanner is in self cart, there is no way of determining if there is a package present
or a no-read.
sensor - A device that detects or measures something and generates a corresponding electrical signal
to an input circuit of a controller.
serial port - An I/O port used most often to connect a modem or a mouse to your computer, identifiable
by its 9-pin connector.
serial transmission - The most common transmission mode; serial, information bits are sent
sequentially on a single data channel.
serial asynchronous transmission of data - The following are common communications interfaces:
RS232, RS422, RS485, 20mA current loop and RS423.
When data is transmitted serially from a communications port, the information is transferred
between the two devices one data bit at a time. The data flow can follow one of three different
communications modes: simplex, half duplex, or full duplex. Each character of data within the
data flow is transported in a binary bit frame called the asynchronous data frame.
The start bit begins each frame. A low voltage signal on the data communications line marks the
beginning of the start bit, at which point the receiving device begins looking for binary zeros and
ones (0s and 1s). The following five to eight data bits (the number depends on the format used)
comprise the binary character. For error detection, an optional parity bit can define whether the
total number of zeros or ones was even or odd.
There are five different parity selections:


ODD - last data bit is a logical 0 if the total number of logical 1s in the first seven data bits is
odd.
EVEN - last data bit is a logical 0 if the total number of logical 1s in the first seven data bits
is even.

MARK - last data bit is always a logical 1 (i.e.: high/mark).

SPACE> - last data bit is always a logical 0 (i.e.: low/space).

OFF (NONE) - last data bit is not present.
The method used to catch errors by using parity bits is as follows: When the transmitter frames
a character, it tallies the number of 0s and 1s within the frame and attaches a parity bit. (The
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RFR-02 Installation Guide
parity bit varies according to whether the total is even or odd.) The receiving end then counts
the 0s and 1s and compares the total to the odd or even recorded by the parity bit. If a
discrepancy is noticed by the receiving end, it can flag the error and request a retransmission of
the data.
A stop bit is used to signal the end of the character. Stop bits are typically one or two bits in
length. The slower the transmission speed, the more stop bits required for recognition of the end
of the data frame.
In addition to the direction of data flow and the data framing, there are other considerations to
insure uniform transmissions. Certain operating parameters must be followed to prevent the loss
of valuable data.
The first consideration is the speed of transmission, known as baud rate. Serial data
transmission is measured in bits per second (BPS). The baud rate selections available for the
6000 are: 110, 300, 1200, 2400, 4800, 9600 and 19200. To enable two devices to interact, they
must both be transmitting/receiving data at the same baud rate. If it is not possible to do this,
there must be a buffer (typically additional storage memory) that accommodates the differences
in communications speed.
Many serial communications links also use a flow control system to handle data transmission in
addition to memory buffers.
X-ON/X-OFF Protocol
A common type of flow control is the X-ON/X-OFF protocol. When a receive buffer nears its
memory capacity, the receiving device sends an ASCII X-OFF signal to the transmitting device,
telling it to stop sending data. When the memory buffer has enough space to handle more data,
the X-ON signal is sent to the transmitting device, telling it to start sending data again.
ACK/NAK Protocol device transmits a message to the host, the host responds with either an
ACK (06H) or a NAK (15H). If the host transmits an ACK to the device, the device deletes its
transmit message and the communication sequence is complete. If the host transmits a NAK,
the device will retransmit. The device resends data a maximum of three times. Optionally this
may be changed to 1, 2, 3, or infinite retransmits by the user. If the device receives a fourth
NAK, it will delete the data in its transmit buffer and display "MAX REXMITS."
A transmitting device ignores ACK and NAK characters received during data transmission. If, for
example, a device receives a NAK during a data transmission, it will not resend the data at the
completion of the transmission.
The device also has a retransmit timer. This timer is activated each time the device transmits
data to the host. If the timer runs for two seconds (this is also changeable) and the device does
not receive an ACK or NAK from the host, a timeout occurs and the device retransmits its data.
Each time the device retransmits because of a timeout, it treats the timeout the same as
receiving a NAK from the host computer. If the device does not receive an ACK before the end
of the fourth timeout, it will delete the data in its transmit buffer and display "MAX REXMITS."
The device deletes data in its transmit buffer and displays the error message when any
combination of four timeouts and NAKs from the host occurs.
When the device receives a message from the host, it calculates the BCC for the message and
compares the calculated BCC to the received BCC. If the two values match, the device
transmits an ACK, ending the communication. If the values do not match, the device transmits a
NAK to the host and waits for the host to retransmit the message. The host, like the device,
should retransmit a maximum of three times.
The sequence number starts at zero (30H) and is incremented each time a device transmits a
new message. When the sequence number reaches nine (39H), it wraps around to one (31H). If
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Glossary
the sequence number skips a number, the receiving device knows that a message was lost. If
the same sequence number is received on two sequential messages, the second message is
responded to with an ACK or NAK (as appropriate) and ignored.
shielding - Protective covering that eliminates electromagnetic and radio frequency interference.
side read - The scanner/antenna is mounted to read the side of a box as it passes by the head.
signal - An impulse or fluctuating electrical quantity (i.e.: a voltage or current) the variations of which
represent changes in information.
Singulation- A means by which an RFID reader identifies a tag with a specific serial number from a
number of tags in its field.
slider bar - A graphical user interface that enables the user to select an ascending/descending value
for a definable parameter by clicking on the slider bar and then sliding (via the mouse) until the desired
value is shown.
software cart - A serial message from an external device that controls the cart cycle.
spot - The undesirable presence of an area of low reflectance in a space. start and stop characters
start and end of cart photoeyes - The cart cycle begins when the start of cart photoeye is blocked
and continues until the end of cart photoeye is unblocked. Relay decisions and data communication
take place after the end of cart photoeye is unbroken.
start bit - In asynchronous transmission, the first bit or element in each character, normally a space,
that prepares the receiving equipment for the reception and registration of the character.
stop bit - The last bit in an asynchronous transmission, used to indicate the end of a character,
normally a mark condition, that serves to return the line to its idle or rest state.
STX (Start of Text) - A transmission control character that precedes a text and is used to terminate a
heading. (^B)
syntax - The rules that dictate how the user must type a command or instruction so that the computer
will understand it.
system.ini file - When the user starts Windows, it consults the system.ini file to determine a variety of
options for the Windows operating environment. Among other things, the system.ini file records which
video, mouse, and keyboard drivers are installed for Windows. Running the Control Panel or Windows
Setup program may change options in the system.ini file.
tachometer (tach) - Hardware device used to provide conveyor speed information to the scanner or
camera in x pulses per inch.
tag - A collection of information associated with a single variable or I/O point.
tap(s) - Taps (or channels) refer to the number of data paths out of the linear CCD sensor. A linear
CCD sensor consists of a line of light-sensitive areas. The charge collected in all these areas is shifted
to a parallel array of non-light sensitive holding areas all at once. The charges are then shifted along
the second set of areas in a bucket brigade fashion with the last areas charge being shifted off the
sensor entirely (for further processing). This holding area does not have to all be shifted out of a single
port the holding line may be broken into several sections, each with its own exit from the sensor. Each
exit is called a tap or channel. Generally, the more taps the more quickly the image data may be shifted
out of the sensor. Current camera configurations offer either 2 or 4 taps. Tap Frequency (MHz) is the
clock rate at which pixels are shifted out of the CCD sensor.
TCP/IP - An industry standard suite of protocols providing communications in a heterogeneous network
environment. TCP/IP stands for Transport Control Protocol/Internet Protocol.
terminal program - Computer software that sends, receives, and displays serial data.
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tracking - Process of keeping track of packages as they travel through the scanning area. Tracking can
be done based on the leading edge or trailing edge of packages. Belt speed (as monitored via the
tachometer signal) and camera mounting also figure into the tracking process.
trailer - A means of identifying the end of a message sent to the host. One example is  or End of
Text.
transceiver- A device that both transmits and receives radio waves.
transmit point - The time it takes to transmit the decoded results from the time the object is first
sensed (by photoeye or light curtain) until the completion of transmission to the host. Transmit point is
shorter (faster) for cameras because it is not required to accommodate a scanning pattern length.
Transponder- A radio transmitter-receiver that is activated when it receives a predetermined signal.
trigger - A signal, typically provided by a photoeye or proximity switch, that informs the scan head of
the presence of an object within its reading zone. Also called cart.
trigger or cart cycle - The time during which the scanner is attempting to read the bar code.
ultra-high frequency (UHF)- From 300 MHz to 3 Ghz. Typically, RFID tags that operate between 866
MHz to 960 MHz.
Uniform Code Council (UCC)- The nonprofit organization that overseas the Uniform Product Code,
the barcode standard used in North America.
Unique Identifier (UID)- A serial number that identifies the transponder. The U.S. Department of
Defense has also developed an identification scheme called UID.
UPS - The abbreviation for uninterruptible power supply. A battery-powered unit that automatically
supplies power to your computer in the event of an electrical failure.
utility - A program used to manage system resources including memory, disk drives, and printers.
wedge - A device that plugs in between a keyboard and a terminal. It allows data to be entered either
by keyboard or by various types of scanners.
word - A unit of data which contains two bytes (16 bits).
write-protected - Read-only files are said to be write-protected. The user can write-protect a 3.5-inch
diskette by sliding its write-protect tab to the open position and a 5.25-inch diskette by placing an
adhesive label over its write-protect notch.
XON - A control character sent by the receiving device to signal the transmitting device to begin
sending data.
XOFF - A control character sent by the receiving device to signal the transmitting device to stop
sending data.
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Appendix A: ASCII Chart
Appendix A: ASCII Chart
HEXADECIMAL & DECIMAL CHARACTER ASCII TABLE
DEC
HEX
ASCII
DEC
HEX
ASCII
DEC
HEX
ASCII
DEC
HEX ASCII
000
00
^@
NUL
032
20
SPC
064
40
096
60
001
01
^A
SOH
033
21
065
41
097
61
002
02
^B
STX
034
22
066
42
098
62
003
03
^C
ETX
035
23
067
43
099
63
004
04
^D
EOT
036
24
068
44
100
64
005
05
^E
ENQ
037
25
069
45
101
65
006
06
^F
ACK
038
26
070
46
102
66
007
07
^G
BEL
039
27
071
47
103
67
008
08
^H
BS
040
28
072
48
104
68
009
09
^I
HT
041
29
073
49
105
69
010
0A
^J
LF
042
2A
074
4A
106
6A
011
0B
^K
VT
043
2B
075
4B
107
6B
012
0C
^L
FF
044
2C
076
4C
108
6C
013
0D
^M
CR
045
2D
077
4D
109
6D
014
0E
^N
SO
046
2E
078
4E
110
6E
015
0F
^O
SI
047
2F
079
4F
111
6F
016
10
^P
DLE
048
30
080
50
112
70
017
11
^Q
DC1 XON
049
31
081
51
113
71
018
12
^R
DC2
050
32
082
52
114
72
019
13
^S
DC3 XOFF
051
33
083
53
115
73
020
14
^T
DC4
052
34
084
54
116
74
021
15
^U
NAK
053
35
085
55
117
75
022
16
^V
SYN
054
36
086
56
118
76
023
17
^W
ETB
055
37
087
57
119
77
024
18
^X
CAN
056
38
088
58
120
78
025
19
^Y
EM
057
39
089
59
121
79
026
1A
^Z
SUB
058
3A
090
5A
122
7A
027
1B
^[
ESC
059
3B
091
5B
123
7B
028
1C
^\
FS
060
3C
092
5C
124
7C
Accu-Sort Systems, Inc.
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RFR-02 Installation Guide
Appendix A: ASCII Chart
DEC
HEX
ASCII
DEC
HEX
ASCII
DEC
HEX
ASCII
DEC
HEX ASCII
029
1D
^]
GS
061
3D
093
5D
125
7D
030
1E
^^
RS
062
3E
094
5E
126
7E
031
1F
^-
US
063
3F
095
5F
127
7F
DEL
Accu-Sort Systems, Inc.
RFR-02 Installation Guide
Revision History
Revision History
This document is under revision control. The revision number is
increased whenever technical information is changed or added. Any
document with a revision number less than 1.0 is preliminary. Any
document with a revision number of 1.0 or greater has been approved
and, if it is a standard document, released by Accu-Sort Systems
ECO process.
Document ECO
Revision
Number
Number
Date
Changes Made
0.1
N/A
06/29/06 Document submitted for review
1.0
N/A
07/18/06 Initial Release
Accu-Sort Systems, Inc.
2
Revision History
Accu-Sort Systems, Inc.
RFR-02 Installation Guide

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