Futaba FDQ02T2 Wireless Modem with Serial Interface User Manual Your FRH set should contain the following
Futaba Corporation Wireless Modem with Serial Interface Your FRH set should contain the following
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User Manual-Rev.01(141208)
i
WIRELESS DATA COMMUNICATION MODEM
FDQ02T
Wireless Modem with Serial Interface
Instruction Manual
Futaba Corporation
Industrial Radio Control
ii
I Notice
I.I FCC Notice
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.
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 instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
Any unauthorized changes or modifications to this device not expressly approved by Futaba
Corporation could void the user’s authority to operate the device and possibly result in
damage to the equipment and/or cause serious or fatal injuries to the operator or nearby
personnel.
This device is intended to be installed and used in accordance with the instructions
contained in this manual. Failure to comply with these instructions could void the user’s
authority to operate the device and possibly result in damage to the equipment and/or cause
serious or fatal injuries to the operator or nearby personnel.
I.II IC Notice
This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this device may not cause interference, and (2)
this device must accept any interference, including interference that may cause undesired
operation of the device.
This equipment complies with IC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance
20cm between the radiator and your body.
(French)
Cet appareil radio est conforme au CNR-210 d’Industrie Canada. L’utilisation de ce
dispositif est autorisée seulement aux deux conditions suivantes : (1) il ne doit pas produire
de brouillage, et (2) l’utilisateur du dispositif doit être prêt à accepter tout brouillage
radioélectrique reçu, même si ce brouillage est susceptible de compromettre le
fonctionnement du dispositif.
Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour
un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un
minimum de 20 cm de distance entre la source de rayonnement et votre corps.
iii
II Important Safety Information
The list of dangers, warnings and cautions in this section contain important information that
will help ensure safe operation of the system. Please read carefully and understand all of
these items. All installers, operators and maintenance personnel should read and understand
this information before installation, use, or maintenance of the FDQ02T system.
The FDQ02T system by itself is not inherently dangerous. HOWEVER, WHEN THE
FDQ02T IS CONNECTED TO OTHER EQUIPMENT FOR THE PURPOSE OF
CONTROL, SAFETY AND ALL POSSIBLE ASSOCIATED DANGERS MUST
ALWAYS BE GIVEN THE UTMOST CONSIDERATION DURING SYSTEM
INTEGRATION, DESIGN, INSTALLATION, AND USE.
The FDQ02T system may be used in virtually unlimited applications. Many of these
associated systems can, by themselves, pose a mechanical, electrical or other hazard to
operators and other persons or equipment. To address all possible applications and
associated safety hazards in this manual would be impossible. The warnings below and
throughout this manual give information that will allow safe installation and use the modem
system applications. If you have questions regarding the safety of your specific application,
please contact the appropriate people for help. Your Futaba sales representative,
representatives of the equipment being controlled, and the technical support staff at local
branch of Futaba Corporation are among those who can provide assistance with your safety
concerns.
The following warnings are included in the lists that follow but warrant repetition
here:
In installations where the FDQ02T system is used to control motion or operation of
potentially dangerous equipment, it is imperative for safety that all operators and installers
be thoroughly trained in the normal function of that equipment before attempting to control
it remotely with the FDQ02T system.
To help ensure safe operation of the equipment, the FDQ02T system must be connected so
that it will operate in a fail-safe way. In other words, the equipment being controlled should
stop or return to its safest state in the absence of a control signal or total loss of RF
transmission from the FDQ02T system. Our system uses one of the most reliable methods
available to transmit data using radio signals. Many factors can affect a radio signal that
may block it or interfere enough to disrupt regular transmission. Because of this, equipment
motion or dangerous electrical current, for example, that continues during a loss-of-signal
condition could be very dangerous.
iv
Four symbols are used in the margin of the following section and throughout the manual to
indicate the level of hazard or information listed.
The symbols are defined as follows:
Indicates a hazard that will cause severe personal injury, death, or
substantial property damage if the warning is ignored.
Indicates a hazard that can cause severe personal injury, death, or
substantial property damage if the warning is ignored.
Indicates a hazard that will or can cause minor personal injury, or
property damage if the warning is ignored.
Indicates installation, operation, or maintenance information that is
important but not hazard-related.
Please read the following safety information carefully. Some of these notices are duplicated
throughout the manual, in areas of associated content, for your benefit.
II.I General Safety Hazards and Notes
Improper installation and/or operation of the FDQ02T system can
cause serious or fatal injuries to the operator or nearby persons and
cause damage to the FDQ02T system, and any equipment it is used
to control. Please read and understand this manual completely and
the manual of all equipment being controlled before attempting to
operate or install this system.
Always keep this manual at a location readily accessible to anyone
operating the system and related equipment. Ensure that all operators
have read and understood this manual, especially all safety and
operation procedures contained in it. Please refer to the section in
this manual titled How to Obtain Help for the contact that can
supply additional manuals or answers to questions not covered in this
manual. If this product is passed on to a different user, be sure that
this manual accompanies the product.
Be certain that the installer of this equipment reads and understands
the instruction manual of the equipment that is being connecting to
before attempting this installation.
The FDQ02T should NOT be used in a manner in which failure of
the product or loss of the radio signal could cause damage to the
v
equipment being controlled, or to anything in the area in which such
equipment is located. All integrated control systems should be
designed for “fail-safe” operation so that a temporary or permanent
loss of signal will not endanger any person, critical process, or
equipment (refer to the beginning of the safety section for further
explanation). The system design should ensure that the equipment
being controlled will default to its safest state in the event of signal
loss.
The FDQ02T contains no user serviceable parts. If the unit requires
service, contact your sales representative or local branch of Futaba
Corporation per instructions the section titled How To Obtain
Help. Do not disassemble or attempt to repair the FDQ02T yourself.
Doing so could void your warranty and may void the user’s authority
to operate the device.
Contact Futaba before using the FDQ02T in safety critical
applications such as medical equipment, aircraft, hazardous materials
handling, etc.
II.II Installation Safety Hazards and Notes
When mounting the FDQ02T, use M2.6 (ISO) screws.
Use only the proper regulated DC voltage supplied to the FDQ02T.
Use of any other voltage may permanently damage the modem
and/or cause the modem to malfunction and create a shock or fire
hazard.
Be certain that all AC power outlets used the power adapters have
been properly installed, grounded, and fused. An electrical shock
hazard may exist if this unit is powered by a faulty power outlet or
source. If such a situation is discovered, immediately discontinue use
until the power source and outlet have been properly installed,
grounded, and fused by an electrician or other authorized person.
Be sure to wire the power and serial connections correctly. Incorrect
wiring can damage the system, cause it to malfunction and/or create
a shock and fire hazard.
Ensure that the FDQ02T power and the power to the equipment to be
controlled is turned off before connecting or disconnecting the cable
between them. This will help prevent accidental damage to the
system and unexpected operation and/or injury.
vi
Be sure the FDQ02T power, the power to the equipment that is being
connecting to it, and the DC power source are all turned off before
wiring and connecting the power cable.
Be sure that the supplied power is within the specified range (3.5 to
7.0 VDC). Voltages outside the specified range may damage the
FDQ02T.
Be sure that the power source has sufficient current capacity.
Insufficient current may cause the unit to malfunction.
Securely attach the antenna cable, and serial communication
connector to the FDQ02T and equipment/power source to which it is
connected. Failure to do so could cause an unexpected system failure.
II.III Antenna Installation Hazards and Notes
This radio transmitter (identify the device by certification number or
model number if Category II) has been approved by Industry Canada
to operate with the antenna types listed below with the maximum
permissible gain indicated. Antenna types not included in this list,
having a gain greater than the maximum gain indicated for that type,
are strictly prohibited for use with this device.
(1)ANTB18-096A0
(2)TK-1619A
(3)TRAB24003
Be sure to keep all systems and antennas clear of power lines.
Permanent equipment damage and severe shock injury or death can
occur if the system contacts power lines.
This device has been designed to operate with an antenna having a
maximum gain of 2.14 dB. Antenna having a higher gain is strictly
prohibited for use with this device. The required antenna impedances
50 ohms.
Contact Futaba before connecting any antenna not provided by
Futaba specifically for the FDQ02T. Attaching any non-authorized
antenna may be in violation of FCC regulations.
To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically
radiated power (e.i.r.p.) is not more than that permitted for successful
communication.
vii
Before each use, verify that the antenna (and antenna cable, if used)
is securely attached and in good condition. A loose antenna or cable
may severely reduce the operating range of the system.
The FDQ02T operates at frequencies in the 2.4 GHz band. These
frequencies are more directional than lower frequencies and are
easily reflected. If there are metal structures nearby, the effective
range may be shortened or the directional properties may be further
narrowed. To help avoid this, mount the antenna as far away as
possible from surrounding metallic structures.
Multipath problems occur easily at frequencies in the 2.4 GHz band.
When multipath problems are present, moving the antenna as little as
10 cm may result in improved communication or, conversely,
worsened or complete loss of communication. Futaba recommends
that the mounting position of the antenna be determined after testing
and verifying optimal communication conditions.
When installing multiple FDQ02T systems that will use different
frequency pattern number in the same area, these antennas must be
mounted at least 6 feet (2 meters) apart. Failure to do so may
severely reduce the modem operating range.
Please contact Futaba for information about antenna separation when
using the FDQ02T and other wireless products in the same area.
viii
II.IV Environmental Safety Hazards and Notes
If the FDQ02T has been stored at a temperature beyond the specified
operating temperature range for the system, it may not function
properly. Allow it to return to normal temperatures before use. Refer
to APPENDIX A – TECHNICAL SPECIFICATIONS for the actual
operating temperature range.
The FDQ02T is a precision electronic device with a rugged design
that is intended for industrial applications. However, do not install it
where it will encounter excessive vibrations. In some cases, isolation
mounts may be used to isolate the modem from the equipment’s
vibration. Excessive vibration can permanently damage the modem
and/or cause it to malfunction.
Do not operate the FDQ02T in environments where it will be
subjected to excessive moisture (such as rain or water spray), dust,
oil, or other foreign matter (such as metal particles). Doing so may
permanently damage the modem and/or cause it to malfunction. If it
does become wet or contaminated, correct the situation, verify proper
operation and have any problems corrected before using it to control
other equipment. If necessary, the modem can be mounted inside a
protective or waterproof enclosure. If the enclosure is metallic, the
antenna must be mounted externally or the effective operating range
will be severely limited.
The FDQ02T is designed for indoor use. When using it outdoors, the
modem should be mounted in a waterproof enclosure and the
ambient temperature range should be checked to insure that it is
within the modem’s specifications. Always use the modem within its
specified environmental ranges.
II.V Other Notice
Italicized gothic word used in this manual shows functional and
technical term especially important for the FDQ02T.
The device must contain the following permanent labeling on the
exterior of the device as follows:
Contains: FCC ID:AZP-FDQ02T2
Contains: ID : 2914D-FDQ02T2
ix
Operational Safety Hazards and Notes
Before each use of the FDQ02T, ensure that the area where the
equipment will be operated is clear of people or obstacles that may
affect its safe operation.
Before each use of the FDQ02T, verify that both the equipment
being controlled and the modem are in proper operating condition.
When rewriting the FDQ02T’s memory registers, do not turn its
power off until it returns a “P0” response. If the power is interrupted
before a P0 response is returned, the memory contents may be lost or
corrupted and it operation will be unpredictable. If the memory
contents are lost or corrupted, they may be restored to original
default settings by reinitializing them. (See p.25 Memory REGISTER
INITIALIZATION for more details.)
Do not attempt to operate remotely controlled equipment outside the
communication range of the FDQ02T system. Doing so could cause
loss of control of the equipment.
Without implementing proper serial communication flow control
settings, the baud rate between the modem and its terminal
equipment (wire linked) can exceed the wireless link data rate and
cause the modem buffer to overflow. This can result in malfunction
of the systems being controlled and/or data corruption. Ensure that
the appropriate flow control settings are being used for your upper
layer application protocol.
Exposure to Radio Frequency Radiation
For FCC RF safety requirements a minimum of 20 cm separation
distance should be kept between the antenna and the user.
x
III System Identification
For future reference, please take a moment to fill in the information below. This
information will help us respond as quickly as possible should your FDQ02T modem ever
need repair or replacement.
Model Name and Number: FDQ02T
Serial Number:
Date of Purchase:
Distributor Name:
Distributor Address:
Distributor Phone Number:
xi
IV Limited Warranty
FUTABA WARRANTS ONLY THAT THE INDUSTRIAL RADIO CONTROL SYSTEM
GOODS OR PRODUCTS FURNISHED HEREWITH SHALL BE FREE FROM
DEFECTS IN MATERIAL AND WORKMANSHIP UNDER NORMAL CONDITIONS
OF USE AND SERVICE FOR A PERIOD OF ONE (1) YEAR FROM THE DATE OF
SALE TO THE PURCHASER WHO IS THE FIRST BUYER OF THE GOODS FOR USE
OR CONSUMPTION AND NOT FOR RESALE OTHER THAN AS A COMPONENT
OF ANOTHER PRODUCT MANUFACTURED FOR SALE BY SUCH PURCHASER
(“CONSUMER”). FUTABA’S LIABILITY, WHETHER BASED ON BREACH OF
WARRANTY OR NEGLIGENCE, SHALL BE LIMITED, AT FUTABA’S ELECTION,
TO REPLACEMENT OR REPAIR OF ANY SUCH NONCONFORMING GOODS,
F.O.B. FUTABA’S U.S.A. PLANT, OR, AT FUTABA’S ELECTION, CREDIT FOR THE
NET PURCHASE PRICE OF SUCH GOODS. ALL CLAIMS HEREUNDER MUST BE
MADE IN WRITING DURING THE WARRANTY PERIOD, AND FUTABA SHALL
HAVE THE RIGHT PRIOR TO ANY RETURN OF GOODS TO INSPECT ANY
GOODS CLAIMED TO BE NONCONFORMING, AND IN ANY EVENT RESERVES
THE RIGHT TO REJECT CLAIMS NOT COVERED BY WARRANTY. THIS LIMITED
WARRANTY CONSTITUTES FUTABA’S SOLE WARRANTY. FUTABA MAKES
NO OTHER WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, AND
EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
FUTABA’S WARRANTY SHALL NOT APPLY IF, AMONG OTHER LIMITATIONS
CONTAINED HEREIN OR FURNISHED WITH THE PRODUCT, BUYER, OR
CONSUMER, OR ANY USER OF THE PRODUCT (A) ALTERS SUCH PRODUCT,
OR (B) REPLACES ANY PART OF SUCH PRODUCT WITH ANY PART OR PARTS
NOT FURNISHED BY FUTABA FOR THAT PURPOSE, OR IF, AMONG SUCH
OTHER LIMITATIONS, PRODUCT FAILS TO OPERATE PROPERLY OR IS
DAMAGED DUE TO ATTACHMENTS OR COMPONENTS THAT ARE NOT
FURNISHED BY FUTABA FOR USE WITH OR REPAIR OF THE PRODUCT UNLESS
SUCH USE IS AUTHORIZED IN WRITING IN ADVANCE BY FUTABA.
THIS LIMITED WARRANTY EXTENDS ONLY TO THE CONSUMER AND IS NOT
ASSIGNABLE OR TRANSFERABLE. This limited warranty shall not apply to fuses,
lamps, batteries, or other items that are expendable by nature, unless otherwise expressly
provided.
This limited warranty does not cover any defect or damage to any of the goods caused by or
attributable to force, accident, misuse, abuse, faulty installation, improper maintenance,
improper electrical current, failure to install or operate in accordance with Futaba’s written
instructions, repair or alteration by unauthorized persons, or leaking batteries. THE
GOODS ARE SENSITIVE ELECTRONIC DEVICES REQUIRING SPECIAL
HANDLING, AND THIS LIMITED WARRANTY DOES NOT APPLY TO
PRODUCTS NOT HANDLED IN ACCORDANCE WITH INSTRUCTIONS SET
FORTH IN THE MANUAL.
THIS LIMITED WARRANTY DOES NOT COVER INDUSTRIAL RADIO
CONTROL PRODUCTS PURCHASED OR USED OUTSIDE OF THE UNITED
STATES WITHOUT FUTABA’S PRIOR APPROVAL.
xii
V Returns
Futaba’s authorization must be obtained prior to return of any item for warranty or other
repair or replacement or credit and will reflect Futaba’s warranty service procedure.
Consumer’s warranty rights are governed by the terms of Futaba’s Limited Warranty, as
above described. Products returned for warranty repair or replacement or credit must be
carefully and securely packed for return, preferably in the original carton or equivalent. The
Consumer must also include in the carton a legible copy of the bill of sale or invoice which
shows the date of sale and the original Buyer’s and Consumer’s names, and also a letter
which gives the Consumer’s return address and contact telephone number, the model and
serial numbers of the product(s) returned, and a brief explanation of the problem or claimed
defect. Any returned products that are replaced by Futaba shall become the property of
Futaba. If after inspection Futaba determines the defect is not covered by its limited
warranty, Futaba will notify Consumer of its determination and will not undertake any
repairs or product replacement until Consumer agrees to pay for all necessary parts and
materials, labor (to be charged at Futaba’s standard repair rate then in effect), and other
expenses including all shipping charges and insurance. Futaba reserves the right to retain
possession of any product returned by Consumer because of defects not covered by
Futaba’s warranty until Futaba receives Consumer’s agreement as above noted or, if
Consumer wants the product returned without repair or replacement, Consumer reimburses
Futaba for all shipping and handling charges incurred by Futaba. Issuance of credit for
returned items shall be made at Futaba’s unfettered discretion. Consumer will not be
entitled to return defective goods for cash refunds. Consumer must inspect goods
immediately and no rejection or revocation of acceptance shall be permitted more than ten
(10) days after delivery to, or first use by, Consumer of the goods, whichever occurs first.
VI Patents – Copyrights – Trademarks – Proprietary
Rights
If this product was manufactured according to designs or processes specified by Consumer,
Consumer shall indemnify and save Futaba, its affiliates, officers, agents, and employees,
harmless from any expense, loss, attorneys’ fees, costs, damages, or liability which may be
incurred as a result of actual or alleged infringement of patent, copyright, or trademark
rights. Furnishing of these products does not convey a license, implied or otherwise, under
any patent, copyright, or trademark right in which Futaba has an interest, nor does it convey
rights to trade secrets or any other proprietary information of Futaba.
VII Limitation of Damages and Action
IN NO EVENT SHALL FUTABA BE LIABLE TO CONSUMER, OR ANY OTHER
PERSON FOR ANY INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES
RESULTING FROM THE USE OF OR INABILITY TO USE THIS PRODUCT,
WHETHER ARISING FROM BREACH OF WARRANTY OR NEGLIGENCE OF
FUTABA, OR OTHERWISE. Any action hereunder must be commenced within one (1)
year of accrual of cause of action or be barred and forever waived. No modification or
alteration of Futaba’s Limited Warranty or any other provision of this paragraph or the
above paragraphs shall result from Futaba’s acknowledgment of any purchase order,
shipment of goods, or other affirmative action by Futaba toward performance following
receipt of any purchase order, shipping order, or other form containing provisions, terms, or
conditions in addition to or in conflict or inconsistent with any such provisions.
xiii
TABLE OF CONTENTS
1 INTRODUCTION ............................................................................................. 1
1.1 Special Features .................................................................................................. 2
1.2 How To Obtain Help ............................................................................................. 3
1.3 Physical Description............................................................................................. 4
2 SYSTEM INSTALLATION ............................................................................... 5
2.1 Communication Cable Connection ....................................................................... 6
2.2 Reset signal ......................................................................................................... 8
2.3 Initialization time .................................................................................................. 8
2.4 Other Installation Precautions .............................................................................. 9
3 SYSTEM OPERATION .................................................................................. 11
3.1 Packet transmission mode ................................................................................. 12
3.2 Header-less Stream mode ................................................................................. 14
3.3 Extended Reception mode ................................................................................. 15
3.4 Communication time .......................................................................................... 17
3.5 Repeater function .............................................................................................. 19
3.6 Frequency Channel............................................................................................ 20
4 FUNCTION CONTROL METHODS ............................................................... 21
4.1 Interface ............................................................................................................ 22
4.2 Serial Interface Setting ....................................................................................... 23
4.3 Terminal Software Setup for Memory Register Control ....................................... 24
4.4 Memory Register Setting.................................................................................... 24
4.5 Command Control .............................................................................................. 26
5 MEMORY REGISTER DESCRIPTION .......................................................... 27
5.1 Memory Register Description ............................................................................. 28
6 COMMAND SET DESCRIPTION................................................................... 39
6.1 Command Set Description ................................................................................. 40
7 APPENDIX .................................................................................................... 57
7.1 Conversion Circuit ............................................................................................. 58
7.2 Specification of the Connectors .......................................................................... 59
7.3 Specification ...................................................................................................... 60
7.4 Outline View ...................................................................................................... 62
1
1
SECTION
1 INTRODUCTION
2
1.1 Special Features
The following list highlights some of the special features of the FDQ02T. For more
complete system specifications please refer to p.60 SPECIFICATIONS.
Approved under FCC Part 15.247 rules -- no special user license required
Operating range greater than 3000 feet, line-of-sight -- configurable as a repeater for
extended range of application service area
2.4 GHz Direct Sequence Spread Spectrum (DSSS) communication system provides
unsurpassed immunity to interference and RF noise
Fast switching Time-Division-Duplex (TDD) provides virtual full-duplex
communication between terminal equipments at rates up to 115.2kbps
User selectable frequency pattern number
Supports 1:1, 1:n, and n:m wireless network topology
Serial communication interface allows direct connection to a micro controller chip. By
converting its level by the external interface circuit, conformable to RS232C, RS422
and RS485
Small size allows easy integration with many systems
Supply voltage range is DC voltage in 3.5 to 7.0 V DC (modem) / 6.0 to 9.0 V DC
(Amp.)
3
1.2 How To Obtain Help
Please contact your local sales representative or local branch of Futaba Corporation at the
address shown below for help with the following:
Application information regarding the FDQ02T or other Futaba products
Technical assistance or training
Answers to safety questions and issues
Additional manuals or other documentation
Repair or service
Comments regarding the product or this manual
Japan
Futaba Corporation
Radio Control Equipment Group
1080 Yabutsuka, Chosei,
Chiba, 299-4395 JAPAN
Tel: +81 (475) 32-6173, Fax: +81(475) 32-6179
Internet: www.futaba.co.jp
Europe
PENDING
When requesting repairs, please provide as much detail as possible regarding the failure and
its cause or symptoms. Doing so will help our service department find the problem quickly,
resulting in a shorter repair time.
The FDQ02T contains no user serviceable parts. If the unit requires
service, contact your sales representative or local branch of Futaba
Corporation as per instructed in this section. Do not disassemble or
attempt to repair the modem yourself. Doing so could void your
warranty and may void the user’s authority to operate the device.
CAUTION
4
1.3 Physical Description
Please review the following section and take a moment to familiarize yourself with the
FDQ02T wireless modem.
Figure 1–1: Upper View
(1) Communication Connector A
Used to connect to the DTE(Data Terminal Equipment) with interface cable. Also
controlling functions such as hardware reset and RS232C/RS485 selecting pins are
available. Signal is CMOS level.
(2) Communication Connector B
It is a power supply of power amplifier input.
The control signal is input from the Communication Connector A.
(3) Antenna Connector
Used to connect to antennas for transmit and receive functions.
(4) Mounting Hole
Used to install a modem from the front surface. It is easy to install a modem, however, only
three holes are available.
Communication Connector A
Communication Connector B
Antenna
Mounting Hole
5
2
SECTION
2 SYSTEM INSTALLATION
6
2.1 Communication Cable Connection
Use the serial communication cable prepared by Futaba to connect the FDQ02T to the
external terminal equipment. For the connection of the modem, see PIN ASSIGNMENT.
The signal level of the FDQ02T is CMOS. If the interface of the equipment to be connected
is RS232C or RS485, the level conversion circuit is required.
Please connect connector A-12pin and B-2pin.
Figure 2-1: PIN ASSIGNMENT
Table 2-1 : PIN ASSIGNMENT ( Communication Connector A )
Pin
No.
Name
I/O
Meaning
Terminal
treatment
１
STAND-BY
Input
Standby mode transition/return
C-MOS
２
RxD
Output
Output received data
C-MOS
３
TxD
Input
Input transmitted data
47kΩ pull down
４
Reserved
Input
Do not use.
47kΩ pull down
５
GND
－
Signal ground
－
６
DSR
Output
Initialization completed
C-MOS
７
RTS
Input
Flow control
47kΩ pull down
８
CTS
Output
Flow control
C-MOS
９
Reserved
Input
Do not use.
47kΩ pull down
１０
VCC
－
3.5V ~ 7.0V
－
１１
POWER-ON
Input
Power on/reset
47kΩ pull down
１２
RX/TX
Output
Set external amplifier to
receiver or transmitter
C-MOS
１３
/INIT
Input
Memory register initialization
47kΩ pull up
１４
Reserved
Input
Do not use
47kΩ pull up
(1) The terminals of the radio modem are based on the DCE (Data Communication
Equipment) mode. Accordingly, the transmission corresponds to the input, while the
reception corresponds to the output.
(2) Only supplying the power to the number 10-pin does not activate the MODEM. Raise
the number 11-pin to the Hi-level to turn on the modem. This operation works as a reset
function as well.
(3) The number 1-pin is used for controlling the standby mode.
Lo: Communication mode / Hi: Standby mode
No.1
No.14
No.1
No.3
Communication Connector A
Communication Connector B
7
Be sure to add a pull-down circuit externally. (Refer to the Standby mode)
(4) The level of the number 6-pin turns to Hi-level when the modem gets ready to accept
commands after the modem is turned on or reset. To use this function, add a pull-down
circuit externally. (Refer to the Standby mode)
(5) The number 12-pin is used to control the external amplifier’s transmission and
reception.
Lo: Transmission / Hi: Reception
(6) If the number 13-pin is at Lo-level when the modem is turned on or reset, the pin
initializes the memory register and makes the modem start working.
(7) Do not connect anything to the number 14-pin.
(8) As the input terminals accept 5V, users can use this interface for 5V-systems.
Table 2-2：Signal definition
Logic
Voltage
Signal
0（ON）
Lo
Space
1（OFF）
Hi
Mark
Table 2-3 : PIN ASSIGNMENT ( Communication Connector B )
Pin
No.
Name
I/O
Meaning
Terminal
treatment
１
VCC
－
6.0V ~ 9.0V
－
２
RX/TX
Input
Set receiver or transmitter
C-MOS
３
GND
－
Signal ground
－
Ensure that the FDQ02T modem power and the power to the
equipment to be controlled is turned off before connecting or
disconnecting the cable between them. This will help prevent
accidental damage to the system and unexpected operation and/or
injury.
In addition to this manual, read the operation manual of a PC
(Personal Computer) and PLC (Programmable Logic Controller) to
be connected.
CAUTION
WARNING
8
2.2 Reset signal
The reset signal at the number 11-pin (POWER-ON) is shown in the figure bellow. The
reset conducted by the reset signal is equivalent to rebooting the power.
Figure 2-2：Reset signal
2.3 Initialization time
(1)The initialization time, which is between the time to turn on the modem and the
time to accept the first command, is 150ms maximum.
(2)When using the RST command to carry out the software-reset, it takes 100ms to
reset the modem and accept the first command after entering the RST command.
Note: This is based on the premise that the modem accepts the RST command
while it is in the standby mode for reception.
(3)When using the INT command to initialize the memory register, it takes 150ms or
less to reset the modem and accept the first command after entering the INT
command.
Note: This is based on the premise that the modem accepts the INT command while
it is in the standby mode for reception.
(4)When using the /INIT pin to initialize the memory register, it takes 250ms or less to
accept the first command after turning on the modem.
The next figure shows the boot-up sequence to initialize the modem by the /INIT
pin.
Note: Min 100ms for initialization (1000ms is recommended. Never use the modem with
this level at Lo.)
Max 20ms for no initialization
Figure 2-3：Initialization sequence
1ms Min
Hi
Lo
VCC
POWER-
ON
/INIT
0ms
Min
Note
9
2.4 Other Installation Precautions
2.4.1 Modem Installation Precautions
Securely attach the antenna cable, and serial communication
connector to the FDQ02T and equipment/power source to which it
is connected. Failure to not do so could cause an unexpected system
failure.
The FDQ02T is a precision electronic device. Its rugged design is
intended for industrial applications. However, do not install it where
it will encounter excessive vibrations. In some cases, isolation
mounts may be used to isolate the modem from the equipment
vibration. Excessive vibration could permanently damage the modem
and/or cause it to malfunction.
If the FDQ02T has been stored at a temperature beyond the specified
operating temperature range for the system, it may not function
properly. Allow it to return to normal temperatures before use. Refer
to p.60 SPECIFICATION for the actual operating temperature range.
Do not operate the FDQ02T in environments where it will be
subjected to excessive moisture (such as rain or water spray), dust,
oil or other foreign matter (such as metal particles). Doing so may
permanently damage the modem and/or cause it to malfunction. If it
does become wet or contaminated, correct the situation, verify proper
operation and have any problems corrected before using it to control
other equipment. If necessary, the modem can be mounted inside a
protective or waterproof enclosure. If the enclosure is metallic, the
antenna must be mounted externally or the effective operating range
will be severely limited.
The FDQ02T is designed for indoor use. When using it outdoors, the
modem should be mounted in a waterproof enclosure and the
ambient temperature range should be checked to insure that it is
within the modem’s specifications. Always use the modem within its
specified environmental ranges.
WARNING
WARNING
WARNING
WARNING
WARNING
10
2.4.2 Antenna Installation Precautions
Before each use, verify that the antenna (and antenna cable, if used)
is securely attached and in good condition. A loose antenna or cable
may severely reduce the operating range of the system.
Avoid mounting the antenna near large metallic objects or inside
metal enclosures. Such objects can severely reduce the operating
range of the system.
The FDQ02T operates at frequencies in the 2.4 GHz band. These
frequencies are much directional than lower frequencies and are
easily reflected. If there are metal structures nearby, the effective
range may be shortened or the directional properties may be further
narrowed. To help avoid this, mount the antenna as far away as
possible from surrounding metallic structures.
Multipath problems occur easily at 2.4 GHz frequencies. When
multipath problems are present, moving the antenna as little as 10 cm
may result in improved communication or, conversely, a further
diminished or total loss of communication. Futaba recommends that
the mounting position of the antenna be determined after testing and
verifying optimal communication conditions.
Please contact Futaba for information about antenna separation when
using the FDQ02T and other wireless products in the same area.
WARNING
WARNING
CAUTION
CAUTION
11
3
SECTION
3 SYSTEM OPERATION
12
3.1 Packet transmission mode
3.1.1 Abstract
In the Packet Transmission mode, the communication is carried out by the follows
procedure:
(1) Once the power of the modem is turned on, the modem becomes the State for
Reception.
(2) The transmission command “TXT” or “TBN” makes the MODEM to the State for
Transmission.
(3) One transmission command can send one packet. The maximum length of the user’s
message is 255 bytes for a packet.
(4) Receiving a packet, the destination modem returns an “ACK” to the sender modem.
Receiving the “ACK,” the sender modem ends the communication. The sender
modem returns its response, which depends on the cause of success or failure in the
communication. Meanwhile, the packet of a message that has failed to be transmitted
will be destroyed.
(5) Prior to sending messages consecutively, the modem checks the responses whether
the previous transmission has been successful or not.
(6) The modem returns to the State for Reception after finishing the transmission.
3.1.2 T Transmission command and reception header
The transmission commands used for the Packet Transmission mode are “TXT”, “TXR”,
“TBN” or “TBR.” Depending on the transmission commands, there are four different
formats that are used to output received data to external equipment. The external
equipment can find the data format by its reception deader.
Table 3-1：Transmission command and reception header
Transmission
command
Reception
header
Function
TXT
RXT
Transmit text data
TXR
RXR
Transmit text data via repeater
TBN
RBN
Transmit binary data
TBR
RBR
Transmit binary data via repeater
The followings are the input format of transmission data from the external equipment to
the modem and the reception format from the modem to the external equipment.
(1) Text data transmission
Transmission : @TXT[destination address] [message] [CRLF]
Example : @TXT012HELLO [CRLF]
Reception : RXT[sender address] [message] [CRLF]
The “TXR” and “TBR” commands via repeater are not utilized for the modem, but are
explained here for the future upgrade.
13
Example : RXT0015HELLO [CRLF]
(2) Text data transmission via repeater
Transmission : @TXT[repeater address] [destination address][message][CRLF]
Example : @TXT003012HELLO [CRLF]
Reception : RXT[repeater address] [sender address][message][CRLF]
Example : RXT003015HELLO [CRLF]
(3) Binary data transmission
Transmission : @TBN[destination address] [the number of bytes of the message]
[message] [CRLF]
Example : @TBN012005HELLO [CRLF]
Reception : RBN[sender address] [the number of bytes of the message] [message]
[CRLF]
Example : RBN015005HELLO [CRLF]
(4) Binary data transmission via repeater
Transmission : @TBN[repeater address] [destination address]
[the number of bytes of the message] [message] [CRLF]
Example : @TBN003012005HELLO [CRLF]
Reception : RBN[repeater address] [destination address]
[the number of bytes of the message] [message] [CRLF]
Example : RBN003015005HELLO [CRLF]
3.1.3 Broadcast communication
If the destination address is set to 255, the sender modem broadcasts to all the other
modems, which is called broadcast communication. In the broadcast communication, the
sender modem can transmit its data to multiple modems simultaneously. However, the
modem cannot determine whether all the other modems have received the data without a
failure because ACK is not returned from any of them in the broadcast communication.
In the broadcast communication, the sender modem repeats retransmission inevitably up to
the predetermined count and then returns an “end” response to its external equipment.
Meanwhile, if the receiver modems have received data properly, the modems output the
data to their external equipment. However, the modems do not output the retransmitted data
to their external equipment if the data has been once accepted properly.
14
3.2 Header-less Stream mode
3.2.1 Abstract
The Header-less Stream mode, a special Packet Transmission mode, does not require the
procedures for transmission commands that are necessary in the Packet Transmission mode,
but requires only inputting transmission data directly.
(1) The destination address can be set in memory register or by command.
(2) The transmission triggers such as terminator, timeout and a specified number of bytes
can be set in the memory register.
(3) The maximum length of the message in a packet is 255 bytes , and the number is
including terminator.
(4) Receiving a packet, the destination modem returns an ”ACK” to sender modem.
Receiving the “ACK,” the sender modem ends the communication.
(5) The sender modem does not return any response regardless of success or failure in the
communication. It is necessary for application software to checking the establishment
of the communication.
(6) Since the modem has a transmission buffer inside, you can enter transmission data
consecutively without waiting the end of transmission like in the Packet Transmission
mode.
(7) This mode is compatible and can communicate with the Packet Transmission mode.
3.2.2 Format
The Header-less Stream mode does not out put the responses such as P1, P0 and N1 in
response to transmission commands. In addition, it doesn’t output the reception header or
CRLF code, which is used in the Packet Transmission mode, but outputs instead special
characters (terminators), which are used as packet separators, as part of data.
The followings are the transmission and reception formats in the Header-less Stream mode.
１．Packet Transmission mode（Reference）
Transmission : @TXT002HELLO [CRLF]
Reception : RXT001HELLO [CRLF]
２．Header-less Stream mode (When terminator is CRLF.)
Transmission : HELLO [CRLF]
Reception : HELLO [CRLF]
３．Transmission in the Header-less Stream mode, Reception in the Packet Transmission
mode（text mode）
Transmission : HELLO [CRLF]
Reception : RXT001HELLO [CRLF] [CRLF]
４．Transmission in the Header-less Stream mode, Reception in the Packet Transmission
mode（binary mode）
Transmission : HELLO [CRLF]
Reception : RBN001007HELLO [CRLF] [CRLF]
５．Transmission in the Packet Transmission mode, Reception in the Header-less Stream
mode
Transmission : @TXT002HELLO [CRLF]
Reception : HELLO
15
3.2.3 Transmission trigger
In the Header-less Stream mode, transmission starts under the following conditions.
(1) Terminator mode
A designated terminator or data of 255 bytes or larger is entered.
(2) Timeout mode
No data has been entered for more than the specified time or data of 255 or larger is
entered.
3.3 Extended Reception mode
Extended Reception is a function to avoid transmission errors and response delays due to
repetition of retransmissions when multiple modems transmit messages at the same time
accidentally like contention mode in the Packet Transmission or Header-less Stream mode.
3.3.1 Operations in the Extended Reception mode
In the Extended Reception mode, once a modem has started receiving data during
retransmission (during ACK-wait, Random-wait and Carrier-sense), the modem will fully
complete the data reception, return its “ACK” and then resume the retransmission.
The following figure shows steps of operations in Extended Reception while the two
modems transmit messages at the same time.
Figure 3-1：Operations in the Extended Reception mode
DTE1
Modem1
Modem2
DTE2
TXT command
P1
TXT
command
ACK
Output received message
after outputting P0 response
Simultaneous
transmission
End random-wait
beforehand
P1
Transmissi
on
Output
received message
P0
Stop random-wait and
start Extended Reception
Return ACK and then transmit
P0
ACK
16
(1) The modem1 and 2 transmit messages at the same time.
(2) Both modems wait for “ACK”, but they time-out.
(3) Of the two modems, the one that has finished the random-time earlier (modem2 in this
case) retransmits its message.
(4) Receiving a message retransmitted during the random-wait, the modem1 receives the
whole message and then returns “ACK”.
(5) The modem1 does not output but keep its received message and transmits its own
message.
(6) The modem2 returns “ACK.”
(7) Receiving “ACK,” the modem1 outputs P0 response and the received message.
3.3.2 Contention between transmission and reception
If a modem receives a transmission command during reception, the modem completes the
reception, returns ACK and then starts processing the transmission command. Like the
Extended Reception mode, the modem outputs the received message only after completing
its transmission and outputting P0 response.
Figure3-2：Contention between reception and transmission
DTE1
Modem1
Modem2
DTE2
@TXT**
P1
P0
RXT***
Message
ACK
P1
P0
Message
ACK
Wait until transmission ends
RXT**
Output received message
after outputting P0
response
@TXT**
17
3.4 Communication time
The time consumed for each communication sequence in the Packet Transmission mode is
as follows.
(1) Time for entering a transmission command
The time consumed for entering a transmission command to the modem from its terminal
depends on the communication parameters between them.
Parameters are:
１．Transmission rate (300ps to 115.2kbps)
２．Data length (7 or 8 bits)
３．Parity bit (yes or none)
４．Stop-bit length (one or two bits)
５．Start-bit length (one bit)
For example, in the case of 9600bps for transmission rate, 8 bits for data length, no parity,
one stop bit and one start bit, the time consumed for sending one bit will be 104μs. And the
time for sending the data of a byte that consists of 10 bits will be 1.04ms.
In the case of sending a message data of ten bytes by “TXT” command, the time consumed
for sending the message will be 19.8ms because the transmission format becomes
“@TXT001ABCDEFGHIJ [CRLF]”, which is 19 bytes.
(2) Time to generate a transmission packet
The internal processing time to generate a transmission packet after accepting a command
is 1ms or less even though the length of the message data varies from 1 to 255 bytes.
In the Header-less Stream mode, it takes 2ms or less.
(3) Time for carrier sense
Prior to transmission, the modem checks SS correlation. If any SS correlation is detected
within 0.1ms, the modem does not transmit any data.
(4) Time to switch between transmission and reception
The internal processing time consumed for switching transmission to reception or vice
versa is approximately 0.07ms.
(5) Transmission time via radio
Depending on the number of bytes of a message data (1 to 255), the time consumed to
transmit the message is obtained from the following calculation.
1.74ms + (the number of bytes in the message) × 0.06ms
(6) Waiting time for “ACK”
This is the time consumed for waiting for “ACK” after completing transmission via radio.
The waiting time is 2ms.
The modem determines that the transmission has failed if it could not receive “ACK”
packet in that period of time. Then the modem waits for the random-wait time and then
repeats the above steps starting from the carrier sense if the number of retransmissions has
not reached the predetermined number. If there is no remaining number of retransmissions,
the modem ends its transmission, outputting the response of “transmission failure”.
(7) Time to transmit “ACK” or “NAK”
The time consumed for transmitting “ACK” or “NAK” is 1.74ms.
(8) Time for random-wait
When SS correlation has been detected by carrier sense, or when retransmission is required
due to the transmission failure, carrier sense will start only after waiting for the random
time in order to avoid collisions between packets. The time for random-wait is from 1ms to
7ms.
18
(9) Time for reception process
Approximately 0.2ms is consumed for the receiver modem to check the address in the data
and other information sent from the sender modem. The receiver modem recognizes the
data having passed the check and outputs it to its terminal.
The next example shows an approximate time necessary for sending a message of 10 bytes
when the parameters are 9600bps for transmission rate, 8 bits for data length, no parity, one
stop bit and one start bit.
In this example that includes one retransmission, the modem1 enters into the
Retransmission Routine because of no response from the modem2 after waiting for “ACK”.
In Retransmission Routine, the modem1 does a random-wait of 1ms to 7ms in order to
avoid collisions between packets, and then restarts transmission.
Figure 3-3：Communication time in the Packet Transmission mode (an example)
DTE1
Modem1
Modem2
DTE2
@TXT***: 20ms
P1
Packet generation:
0.1ms
Carrier-
sense/transmission
switch: 0.17ms
Reception
processing: 0.2ms
Change to
transmission: 0.07ms
ACK transmission:
1.74ms
P0: 2ms
RXT***: 19ms
Message
transmission:
2.34ms
Command
processing 0.1ms
ACK-wait: 2ms
Random-wait:
1ms ~ 7ms
Carrier-
sense/transmission
switch: 0.17ms
Reception switch:
0.07ms
Message
transmission:
2.34ms
Reception
processing: 0.2ms
19
3.5 Repeater function
This function is not installed in the modem at present. This section is only for explanation
for the future upgrade.
3.5.1 Abstract
Using repeaters is useful in extending communication area and eliminating dead-point area
where radio signal intensity is insufficient.
The repeater function can coexist with the modem function. If a modem receives a packet
whose “destination address” matches with the modem’s address, the modem outputs the
received data to its external equipment. (Modem operation) If a modem receives a packet
whose “repeater address” matches with the modem’s address, the modem transfers the
packet. (Repeater operation)
If a modem is used as a repeater, there is no need for the modem to have its external
equipment. When a conflict occurs between a transmission command and a transfer
operation, the priority will be given to the one that emerged first. If a transfer request
occurred afterward, the transfer is carried out after transmission. In contrast, if a
transmission request occurred afterward, the transmission is carried out after transmission.
A repeater station, for its installation purpose, should be used as a master station. (Not
mandatory)
Figure 3-4: Repeater
3.5.2 Repeater address
In the Packet Transmission mode, the repeater address is set by transmission command.
In the Header-less Stream mode, there are two ways bellow:
(1) Setting by memory register
(2) Setting by PAS command
3.5.3 Communication time via repeater
The communication time through a repeater is about twice as long as the time consumed in
the direct communication.
Repeater = Master
Obstacle
Destination
Sender
20
3.6 Frequency Channel
The FDQ02T can operate on 22 available frequencies between 2405.376 MHz and 2475.008
MHz with 2.048 MHz separation between each frequency.
See the table below for the exact frequency assignments.
Table 3-2 ： Frequency Channel
Channel №
Frequency(MHz)
Channel №
Frequency (MHz)
2
2405.376
24
2427.904
4
2407.424
26
2429.952
6
2409.472
28
2432.000
8
2411.520
30
2434.048
10
2413.568
32
2436.096
12
2415.616
34
2438.144
14
2417.664
36
2440.192
16
2419.712
38
2442.240
18
2421.760
40
2444.288
20
2423.808
42
2446.336
22
2425.856
70
2475.008
21
4
SECTION
4 FUNCTION CONTROL METHODS
22
4.1 Interface
4.1.1 Pin Assignment
The figure below shows the pin location of the serial communication connector,
following the DCE (Data Communication Equipment) specification.
Figure 4–1: Serial Communication Connector Location
Pin
No.
Name
I/O
Meaning
Terminal
treatment
１
STAND-BY
Input
Standby mode transition/return
C-MOS
２
RxD
Output
Output received data
C-MOS
３
TxD
Input
Input transmitted data
47kΩ pull down
４
Reserved
Input
Do not use.
47kΩ pull down
５
GND
－
Signal ground
－
６
DSR
Output
Initialization completed
C-MOS
７
RTS
Input
Flow control
47kΩ pull down
８
CTS
Output
Flow control
C-MOS
９
Reserved
Input
Do not use.
47kΩ pull down
１０
VCC
－
3.5V ~ 7.0V
－
１１
POWER-ON
Input
Power on/reset
47kΩ pull down
１２
RX/TX
Output
Set external amplifier to
receiver or transmitter
C-MOS
１３
/INIT
Input
Memory register initialization
47kΩ pull up
１４
Reserved
Input
Do not use
47kΩ pull up
Table 4–1: Pin Descriptions
(1) The terminals of the radio modem are based on the DCE (Data Communication
Equipment) mode. Accordingly, the transmission corresponds to the input, while the
reception corresponds to the output.
(2) Only supplying the power to the number 10-pin does not activate the MODEM. Raise
the number 11-pin to the Hi-level to turn on the modem. This operation works as a reset
function as well.
No.1
No.14
No.1
No.3
Communication Connector A
Communication Connector B
23
(3) The number 1-pin is used for controlling the standby mode.
Lo: Communication mode / Hi: Standby mode
Be sure to add a pull-down circuit externally. (Refer to the Standby mode)
(4) The level of the number 6-pin turns to Hi-level when the modem gets ready to accept
commands after the modem is turned on or reset. To use this function, add a pull-down
circuit externally. (Refer to the Standby mode)
(5) The number 12-pin is used to control the external amplifier’s transmission and reception.
Lo: Transmission / Hi: Reception
(6) If the number 13-pin is at Lo-level when the modem is turned on or reset, the pin
initializes the memory register and makes the modem start working.
(7) Do not connect anything to the number 14-pin.
(8) As the input terminals accept 5V, users can use this interface for 5V-systems.
Table 2-2：Signal definition
Logic
Voltage
Signal
0（ON）
Lo
Space
1（OFF）
Hi
Mark
4.2 Serial Interface Setting
For connecting the FDQ02T modem with an external terminal equipment, RS232C is
appropriate for 1 to 1 topology. And set the RS485 mode to make RS485 multi-dropping
topology for multiple equipment connection. Interface configuration can be made with Pin
12 (/RS485ENB) of the serial communication connector.
To configure the RS485 mode, pull down Pin 12 with 10k ohm register. In this case, do
NOT connect this pin DIRECTLY to the GND. This is because in RS485 mode, this pin
will be as an output pin, after the initialization completes, to control the output buffer of the
RS485 driver IC chip. As for the RS232C interface, no connection is required because it is
pulled up inside.
Since the interface level of the FDQ02T modem is CMOS, the level conversion circuit
must be provided outside for connecting it with the RS232C or RS485 interface.
Figure 4–1: Connection Example to PC
Converter
PC
RS-232C
FDQ modem
24
4.3 Terminal Software Setup for Memory Register Control
Communication or terminal software is necessary to set the memory registers. Nearly any
PC communication software can be used. Launch the communication software and set the
terminal’s communication parameters as shown below. Refer to your specific
communication software instructions how to set these parameters.
bit rate: 9600 bps
data length: 8 bits
stop bits: 1 bit
parity bit: none
flow control: none
local echo: yes
terminator: carriage return + line feed
4.4 Memory Register Setting
Memory registers set the operation mode and communication parameters of the modem
and retain them in memory. All of the settings of the modem are made by these memory
registers.
Since the memory register is based on rewritable non volatile memories, these memories
can be readily rewritten by external terminal equipment such as PC and their contents will
be kept even after the power is turned off. This non volatile memory can be rewritten about
1 million times.
4.4.1 Memory Register Referencing and Setting
Memory registers are referenced and set with the REG command. (For more information,
refer to REG section at p.39 COMMAND SET DESCRIPTION)
Example procedure:
1. To view the current value of register 00, enter: @REG00 CR/LF
2. Modem responds with 00H CR/LF (REG00 is assumed to be 00H in this case and
varies in each setting case)
3. To set register REG00 to 0FH, enter: @REG00:0FH CR/LF
4. Modem responds with “P0” CR/LF
5. Enter “@RST CR/LF” or cycle the modem power, to activate new values
@ = command header (specify following characters are command)
CR/LF Terminator (carriage return + line feed)
When rewriting the modem’s memory registers, do not turn the
modem’s power off until the modem returns “P0” response. If the
power is interrupted before “P0” is returned, the memory contents
may be lost or corrupted and the modem operation will be
unpredictable.
CAUTION
25
If the memory contents are lost or corrupted, they can be restored to
original default settings by reinitializing them. (See the section below
titled p.25 MEMORY REGISTER INITIALIZATION)
Input character arrays of commands quickly and sequentially.
Too slow input (taking more than 5 seconds in the initial setting)
results in command error.
4.4.2 Memory Register Initialization
The memory registers can be restored to the factory default values at any time by using
one of the following two methods.
1) Memory Register Initialization by hardware:
Use either methods stated below, in which the modem attempts to read Pin 13
(/DefParam) of the serial communication connector at the startup and starts initializing
the memory registers when it is “L”.
Method 1. Set “L” level to Pin 13 (/INIT) of the serial communication connector
with the power turned off. When the power is re-supplied, the memory registers
are initialized and the modem starts operation in the factory default state.
Method 2. Set “L” level to Pin 13 (/INIT) of the serial communication connector
while the power turned on. In this state, force “L” to Pin 11 (POWER ON) of the
serial communication connector more than 1ms, then return the level to “H”. The
modem once becomes the Shutdown mode and returns to Active mode. Since this
sequence is the same as the reset, the memory registers are initialized and the
modem starts operation in the factory default state.
2) Memory Register Initialization by Command:
1. With the modem power is on and the communication software running, enter “@INI
CR/LF” at the terminal prompt.
2. The modem responds with “P0” response and immediately begins to operate using
the initialized factory default state.
While initializing the memory registers, do not turn the modem’s
power off. It take about 1 sec. to initialize the memory registers.
CAUTION
CAUTION
26
4.5 Command Control
Some FDQ02T parameters can be changed by issuing commands from the terminal
equipment. Various applications can be supported with the flexibility that command control
offers.
Command Entry
When a command is issued to the modem from the terminal equipment, a command
header (one byte character) should be used the modem to acknowledge the command
from ordinary data. The command header is initially set to “@” (40H) but can be
changed to another character by changing the value stored in the memory register
REG10.
Commands must use all upper case letters (A to Z). The modem does not recognize
lower case letters (a to z) in commands.
A two byte terminator (carriage return (0DH) + line feed (0AH)) is used to terminate a
command. “CR/LF” shows the terminator in this manual. PC can send this two byte
character with pressing ENTER key once using a communication software. But some
setting is necessary in the software.
The modem immediately executes a command once it’s recognized. If the command
requires a response, the modem returns the response to the terminal equipment
when its internal processing is completed.
The following is an example of a command entry and response:
@BCL CR/LF :command issued from the terminal equipment
P0 CR/LF : successive completion response is returned
27
5
SECTION
5 MEMORY REGISTER DESCRIPTION
28
5.1 Memory Register Description
The FDQ02T modem contains 28 memory registers which are used to control and store
communication parameters and operation mode settings. After rewriting new register
settings, the power must be cycled, a hardware reset asserted, or a software RST
command is issued to validate the new settings.
The following table briefly lists each register, register function and default value:
Register
Function
Default Value
Meaning
REG00
Own (sender) address
00H
Address 0
REG01
Reserved
F0H
－
REG02
Destination address
00H
Address 0
REG03
Special mode
F0H
Communication mode
REG04
ID code 1（low-order digits）
00H
Refer to REG04
REG05
ID code 2 (high-order digits)
00H
Refer to REG05
REG06
Frequency Pattern
00H
Pattern 0
REG07
Reserved
05H
－
REG08
Repeater address
FFH
Repeater invalid
REG09
Reserved
13H
－
REG10
Command header
40H
‘＠’
REG11
Retransmission count
32H
50 times
REG12
Reserved
B4H
－
REG13
Buffer data timeout
1EH
30 seconds
REG14
Command input timeout
32H
5 seconds
REG15
Command recognition interval
00H
0 second
REG16
Terminator 1
0DH
ＣＲ
REG17
Terminator 2
0AH
ＬＦ
REG18
Radio communication setting 1
8CH
Refer to REG18
REG19
Radio communication setting 2
00H
Refer to REG19
REG20
Wired communication setting 1
05H
Refer to REG20
REG21
Wired communication setting 2
09H
Refer to REG21
REG22
Wired communication setting 3
00H
Refer to REG22
REG23
Wired communication setting 4
00H
Refer to REG23
REG24
Special communication setting 1
C0H
Refer to REG24
REG25
Special communication setting 2
40H
Refer to REG25
REG26
Data input timeout
00H
Terminator valid
REG27
reserved
00H
－
Table 5–1: Memory Registers
Suffix ‘H’ of each default value denotes HEX radix expression in the value.
29
REG00: Own (sender) address [default value: 000]
This register is used to set the address of a modem. Valid values are from 000 to 254.
The value in this register is used as a sender address in every data packet being sent.
When the address-check function is used, it is possible to receive a packet if the
packet contains such value as a destination address.
REG01: Reserved [default value: 240]
The FDQ02T does not use this register. Keep the default value as it is.
REG02: Destination Address [default value: 000]
In the Header-less Stream mode, this register is used to set the address of a destination
modem. Valid values are from 000 to 255.
This destination address is attached to every data packet to be sent.
When using the address-check function, set the destination address in this register.
When using the “DAS” command, however, the address defined by the “DAS”
command is always prioritized.
The destination address 255 represents the broadcast communication.
REG03: Special mode [default value: F0H]
This register is used to set a special operating mode. The default is the
Communication mode.
REG04: ID Code 1 [default value: 00H]
Used with ID code 2 (REG05), set the ID code. Valid values are 000 to 255.
Together with ID code 2, up to 65535 ID codes can be set.
The ID code identifies the group of the modems works in the same group. The ID
code is used to prevent erroneous connection with other systems and for
communication security.
Before transmission, radio data packets are scrambled using a pseudo-random data
sequence generated with this ID code as the seed. During reception, the original data
is restored by de-scrambling it with the pseudo-random data sequence. The modems
with different ID codes cannot communicate with each other.
REG05: ID Code 2 [default value: 00H]
Used with ID code 1 (REG04), set the ID code. Valid values are 000 to 255.
Together with ID code 1, up to 65535 ID codes can be set.
In case plural modems are used as a single system, always set the same ID code for all
modems and repeaters.
30
REG06: Frequency pattern [default value:00H]
This register is used to set a frequency pattern. The valid values are from 00H to 15H.
To establish communication in a system, the same frequency pattern should be used.
In contrast, to let multiple systems operate in the same area, each system should have
different frequency patterns.
When using multiple systems in the same area, frequencies may periodically match
and interfere with each other even if the systems are using different frequency
patterns.
REG07: Reserved [default value: 05H]
The FDQ02T does not use this register. Keep the default value as it is.
REG08: Repeater Address [default value: FFH]
This register is used to set repeater address when using repeater in the Header-less
Stream mode.
When not using repeater, set “FFH” at this register, making the communication direct.
REG09: Reserved [default value: 13H]
The FDQ02T does not use this register. Keep the default value as it is.
REG10: Command Header [default value: 40H]
Sets the character that identifies the start of a command.
The default is character “@” (40H).
When this character is input from the terminal equipment after no character is
received for the command recognition interval (REG15) or longer, subsequent
input character is recognized as a command for the modem.
REG11: Retransmission Count [default value: 32H]
Sets the maximum number of packet retransmission attempts. Valid values are 000
to 255.
When retransmission exceeds the retransmission count (retransmission count plus
one), the modem outputs an error response to the terminal equipment.
REG12: Reserved [default value: B4H]
The FDQ02T does not use this register. Keep the default value as it is.
31
REG13: Buffer Data Timeout [default value: 1EH]
This register is used to set the waiting time to clear the content of the buffer after the
last change in the buffer.
Valid values are from 000 to 255 seconds with an increment of 1 second. The default
value is 30 seconds.
If the Buffer Data Timeout is not necessary, set it at “0.”
This value should be longer than the Data Input timeout (REG26).
REG14: Command Input Timeout [default value: 32H]
Sets the character input timeout interval for command input. It is used as the
timeout between the command header and the character following it and between
each character of the command.
At the timeout, the modem operation transits from command-input-state to data-
wait-state.
Valid values are 000 to 255, representing tenths of seconds in 0.1 second increments.
(Set an integer value equal to ten times the number of seconds desired.)
A setting of 000 disables this timeout function
REG15: Command Recognition Interval [default value: 00H]
When a message data contains a command header character (in case of binary data
or data in two-byte Chinese characters), data following the command header
character will be interpreted as a command, the message does not transmit properly.
Sets the necessary vacant duration time interval to discriminate between ordinary
data character and a command header character. Input a command after a longer
interval than time interval setting.
Valid values are 0.1 to 25.4 sec., representing tenths of seconds in 0.1 second
increments. (Set an integer value equal to ten times the number of seconds desired.)
When set to 000, the command header is recognized at any time, and when set to
255, all command header character are ignored.
REG16: Terminator 1 [default value: 0DH]
Set an arbitrary 1 byte terminator. In case of a 2-byte terminator, set the first byte
character of the terminator.
REG17: Terminator 2 [default value: 0AH]
Set another arbitrary 1 byte terminator. In case of a 2-byte terminator, set the last
character of the terminator .
32
REG18: Communication Setting 1 [default value: 8CH]
Bits 7 – 6: Protocol
bit 7
bit 6
Setting
0
0
Data transparent mode
0
1
Reserved
1
0
Packet transmission mode
1
1
Headerless stream mode
Table 5–7: Protocol
Bits 5: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
Bit 4 Transmission format
0
transmit in the text form (default value)
1
transmit in the binary form
Table 7–4 Transmission format
Selects the transmission format. When data are transmitted to the destination
station which is set to the normal packet transmission mode, output text format
(RXT, RBN) from the receiver modem (destination station) differs depend on this
setting.
This setting does not effect in the receiver modem set as headerless stream mode.
Bits 3 – 2 Terminator Setting
bit 3
bit 2
setting
0
0
two kinds of arbitrary 1 byte code (REG16, REG17)
0
1
arbitrary 1 byte code (REG16) ＋ a wild card (any character)
1
0
arbitrary 2 byte code (REG16 + REG17)
1
1
carriage return (CR) ＋ line feed (LF) (default value)
Table 7–5 Terminator setting
Sets the terminator to identify the breakpoint of a packet. The modem transmits data
considering this character as the breakpoint of a packet.
In case of using an arbitrary terminator, set it to REG16 and 17.
Bit 1: Source address check
0
Inhibit source address checking (default value)
1
Activate source address checking
Table 5–4: Source Address Check Settings
33
When the source address checking is active and the source address in the
received packet header does not match the destination address setting (REG02),
the data is discarded (data cannot be received).
Bit 0: Destination address check
0
Inhibit destination address checking on receipt (default)
1
Activate destination address checking on receipt
Table 5–5: Destination address check
When the destination address checking is active and the destination address in
the received packet header does not match the received modem’s local station
address (REG00), the data is discarded (data cannot be received).
REG19: Communication Setting 2 [default value: 00H]
Bit 7 - 6: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
Bit 5: Broadcast Reception
0
Enable broadcast transmission reception (default value)
1
Disable broadcast transmission reception
Table 5–7: Broadcast Reception Settings
Enable/disable reception of broadcast transmission in packet transmission mode
(Mode 3 and 5).
Bit 4 - 2: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
Bit 1: Master/Slave
0
Slave station (default)
1
Master station
Table 5–11: Master/Slave
There should be no more or no less than one master station among a group of modems
that communicate each other. The number of slave stations can be up to the number
defined by the REG00. (253 Max)
The master station transmits beacon as a reference.
Bit 0: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
34
REG20: Wired communication Setting 1 [default value: 05H]
Bit 7: Data Length
0
8 bit data bytes (default value)
1
7 bit data bytes
Table 5–13: Data Length Settings
Bit 6: Parity Bit
0
No parity bit (default value)
1
Parity bit
Table 5–14: Parity Settings
Bit 5: Even/Odd Parity
0
Even parity (default value)
1
Odd parity
Table 5–15: Odd/Even Parity Settings
Invalid when bit 6 is set to 0, without parity.
Bit 4: Stop Bit
0
1 stop bit (default value)
1
2 stop bits
Table 5–16: Stop Bit Settings
Bits 3 – 0: Baud rate setting
Bit 3
Bit 2
Bit 1
Bit 0
Setting
0
0
0
0
300 bps
0
0
0
1
600 bps
0
0
1
0
1200 bps
0
0
1
1
2400 bps
0
1
0
0
4800 bps
0
1
0
1
9600 bps (default)
0
1
1
0
19200 bps
0
1
1
1
38400 bps
1
0
0
0
Reserved
1
0
0
1
Reserved
1
0
1
0
Reserved
1
0
1
1
Reserved
1
1
0
0
57600 bps
1
1
0
1
115200 bps
1
1
1
0
Reserved
1
1
1
1
Reserved
Table 5–17: Baud Rate
35
REG21: Wired communication Setting 2 [default value: 09H]
Bits 7 – 5: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
Bit 4: Command Header
0
Use REG 10 character
1
Use Break signal
Table 5–16: Command Header
Bit 3 - 2: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
Bit 1: Flow Control
0
Software flow control (default value)
1
Hardware flow control
Table 5–18 Software/Hardware Flow Control Settings
Selects the flow control method. This setting must match the connected terminal
equipment’s setting.
Hardware flow control uses the two control lines RTS and CTS. When using with
the RS485 interface, be sure to set to 0.
Software flow control uses XON and XOFF codes.
Bit 0: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
REG22: Wired communication Setting 3 [default value: 00H]
Bit 7: Enable and Disable Reception
0
Enable reception at the initial state (default value)
1
Disable reception at the initial state
Table 5–19: Enable/Disable Reception
The initial state is in reception enable. Depending on an usage of the modem, the
initial state of the modem may be better in the reception disable state. In such a case,
use this setting.
Issue the REN command to enable reception.
Bit 6 - 0: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
36
REG23: Wired communication Setting 4 [default value: 00H]
Bit 7 - 5: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
Bit 4 : CR/LF addition/deletion
(1) Setting at the headerless stream mode
0
does not add CR/LF code to the received data (default value)
1
adds CR/LF code to the received data
Table 7–6: Addition of CR/LF code
In the headerless stream mode, setting is made whether the CR/LF character is
added to the received data or not.
In the communication between the modems set to the headerless packet mode, this
setting is invalid because the terminator is originally added to the transmit data.
However, when a packet is received from the modem in the packet transmission
mode, there is no addition of the CR/LF terminator. In this case, set this bit to 1.
Then the received packet is output with the CR/LF character is added.
(2) Setting at the packet transmission mode
0
adds the CR/LF to the received data (default value)
1
does not add the CR/LF to the received data
Table 7–7: Deletion of CR/LF character
In the packet transmission mode, setting is made whether the CR/LF character is
added to the received data or not.
At the receiver modem (set to the packet transmission mode), the sender (set to the
headerless stream mode) side terminator (CR/LF character as default) plus
packet transmission mode terminator (CR/LF) are output. To avoid such
redundant outputs, set this bit of the modem in the normal packet transmission
mode to 1.
Bit 3 - 0: Reserved
The FDQ02T does not use this register. Keep the default value as it is.
37
REG24: Reserved [default value: C0H]
The FDQ02T does not use this register. Keep the default value as it is.
REG25: Reserved [default value: 40H]
The FDQ02T does not use this register. Keep the default value as it is.
REG26: Data input timeout [default value: 00H]
Sets the vacant duration time interval to recognize as the end of the message data
input in the headerless stream mode.
REG27: Reserved [default value: 00H]
The FDQ02T does not use this register. Keep the default value as it is.
39
6
SECTION
6 COMMAND SET DESCRIPTION
40
6.1 Command Set Description
This section provides a description of each command available in the FDL command set.
The table below lists each command and it applicability in each operation mode.
Command
Function
1
ARG
Reference All Memory Resisters
2
BCL
Clear Transmit and Receive Buffers
3
DAS
Reference and Set the Destination Address
4
DBM
Read Signal Strength
5
HOP
Refer to or set frequency pattern
6
INI
Initialize All Memory Resisters
7
ODA
Disable Received Data Output
8
OEN
Enable Received Data Output
9
PAS
Reference and Set Repeater Address
10
RDA
Disable Wireless Reception
11
REG
Reference and Set Memory Resisters
12
REN
Enable Wireless Reception
13
RID
Display Received Serial ID
14
RNO
Reference and Set Retransmission Count
15
ROF
RF Circuit Block Power Down
16
RON
RF Circuit Block Power Up
17
RST
Reset
18
SAS
Reference and Set Local Station Address
19
STS
Read Status
20
TBN
Transmit Binary Data
21
TBR
Transmit Binary Data Through Repeater
22
TID
Display Local Station Serial ID
23
TS2
Test radio link
24
TXR
Transmit Text Data Through Repeater
25
TXT
Transmit Text Data
26
VER
Reference Version Information
Table 6–1: Command to Mode Availability
The symbols used in this section have the following meaning:
> : Input character from the terminal equipment to the modem
< : Output from the modem to the terminal equipment
@ : Command header
CR/LF : Terminator (carriage return + line feed)
[ ] : Required input parameter/s Be sure to input.
( ) : Optional input parameter/s May be omitted
{} : 485 mode local station address (REG00). Be sure to
input at 485 mode
In the Syntax and Response segments of the following command descriptions the
terminator symbol (CR/LF)has been omitted for clarity.
41
ARG Reference All Memory Registers
Syntax
ARG{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
All settings are indicated (REG00 to REG27)
N0: command error (Except 485 mode)
Function
Recalls the contents of all 28 memory registers.
Example
>@ARG CR/LF : Recall the contents of all the memory registers
<REG00 : 001 CR/LF : Consecutive output of register contents
<REG01 : 240 CR/LF : Register values output in hexadecimal codes
<REG02 : 002 CR/LF
<REG03 : F0H CR/LF
|
|
<REG26 : 00H CR/LF
<REG27 : 00H CR/LF
BCL Clear Transmit and Receive Buffers
Syntax
BCL{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
On headerless stream mode , clears the contents of the transmit and receive
buffers of the modem.
Example
>@BCL CR/LF : clear the buffer contents
<P0 CR/LF : command accepted
Example
>@BIV025 CR/LF : Set the receiving (transmission) interval at 250 ms
<P0 CR/LF : command accepted
>@BIV CR/LF : Refer the current value
<025 CR/LF : 025 (25 0ms) returns
Notes Values set by the BIV command will be lost by turning the power on or resetting.
Generally, this parameter is no need to modifying. Use with the default value.
42
DAS Reference and Set Destination Address
Syntax
DAS(set destination address)
set destination address : the desired destination address (000 to A23)
Response
xxx : current value (reference)
P0 : command accepted (setting)
N0 : command error
Function
References or sets the destination address of the modem connection established
with in the data transparent mode and headerless stream mode
The current DAS value can be referenced by entering the command with no
parameter.
The DAS command is used for temporary modifying destination address.
Change the value of REG02 to change the default value.
Example
>@DAS002 CR/LF : set the destination address to 002
<P0 CR/LF : command accepted
>@DAS CR/LF : reference the destination address
<002 CR/LF : current value output (002)
Notes
This command cannot be used in packet transmission mode.
The local station address (REG00) must be set to communicate with the remote
modem. Communication cannot be established unless the addresses coincide with
each other.
This command is not arrowed to use in 485 mode.
DBM Read Signal Strength
Syntax
DBM{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
-xxxdBm : signal strength
N0 : command error (Except 485 mode)
Function
Reads the received signal strength and outputs the value in dBm.
Higher values represent stronger signal strength and better receiving conditions.
Example
>@DBM CR/LF : read signal strength
<-78dBm CR/LF : signal strength is -78dBm.
43
Notes
The range available for measurement is –40 dBm to –100 dBm. Since the signal
strength indication has a slight error in its value, use this result for your ‘rule of a
thumb’ reference.
This command outputs the strength of last received packet.
HOP Refer to or set frequency pattern
Syntax
HOP
HOP(:pattern number)
Pattern number : 00 ~ 21
Response
xx : when referring
P0 : normal end (when setting)
N0 : command error
Function
This command refers to or sets frequency pattern.
To refer to the current setting, enter this command alone. To set a pattern number,
enter this command with the pattern number.
Setting frequency pattern once releases synchronization.
The setting by this command is temporarily effective. It returns to the value defined
by the REG06 after resetting.
Example
>@HOP CR/LF : reference the pattern number
<00 CR/LF : output value (pattern number 00)
>@HOP:21 CR/LF : set pattern number to 21.
<21 CR/LF : output value (pattern number 21)
INI Initialize All Memory Registers
Syntax
INI{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Sets the all contents of the memory registers to the factory default values.
Example
>@INI CR/LF : initialize all memory registers
<P0 CR/LF : command accepted
44
Notes
Custom settings of all memory registers are lost when this command is executed.
If the group address (REG01) is designated while RS485 multi-drop connection is
being made in the RS485 mode, the local station address of all modems will be
initialized to 000. Exercise care when issuing this command.
For a list of the factory default values, see the section titled p.27 MEMORY
REGISTER DESCRIPTION.
ODA Disable Received Data Output
Syntax
ODA{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Disables output of any data received via the wireless link to the terminal
equipment.
Data received, while output is disabled, is stored in the receive buffer.
When the modem’s power is turned on (or a reset), the modem is in the state to
enable the received data output.
Example
>@ODA CR/LF : disable the output of received wireless data
<P0 CR/LF : command accepted
(Data is not output during this period even if received.)
>@OEN CR/LF : enable the output of received wireless data.
<P0 CR/LF : command accepted
<RXT002HELLO CR/LF : outputs data stored in the receive buffer
<RXT003MAIL CR/LF :
OEN Enable Received Data Output
Syntax
OEN{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
45
N0 : command error (Except 485 mode)
Function
Enables output of any data received via the wireless link to the terminal equipment.
This command enables serial data output after it has been disabled with the ODA
command.
When the modem’s power is turned on (or a reset), the modem is in the state to
enable the received data output.
Example
>@ODA CR/LF : disable serial output of received wireless data
<P0 CR/LF : command accepted
(Data is not output during this period even if received.)
>@OEN CR/LF : enable serial output of received wireless data.
<P0 CR/LF : command accepted
<RXT002HELLO CR/LF : outputs data stored in receive buffer
<RXT003MAIL CR/LF : and any new data received
PAS Reference and Set Repeater Address
Syntax
PAS (:Repeater Address1 :Repeater Address2)
Repeater Address : repeater address to pass through
Response
xxx : xxx : current address (reference)
P0 : command accepted (setting)
N0 : command error
Function
In the headerless stream mode , references and sets the repeater address to
pass through
When no repeater address is set, the current setting can be referenced.
This command is used to temporarily change repeater address. To change the
default value, change REG13.
Example
>@PAS CR/LF : references the current repeater address
<004 : A00 CR/LF : current repeater address is 004
<P0 CR/LF : command accepted
< @PAS:002:A00 CR/LF : sets the repeater address to 002
<P0 CR/LF : command accepted
Notes
This command is not allowed to be used in 485 mode.
46
RDA Disable Wireless Reception
Syntax
RDA{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Disables wireless reception in the packet transmission mode.
The status when the modem is powered ON or reset follows bit 7 of REG22.
Example
>@RDA CR/LF : disable wireless reception
<P0 CR/LF : command accepted
>@REN CR/LF : enable wireless reception
<P0 CR/LF : command accepted
REG Reference and Set Memory Register
Syntax
REG[register number](: value) {;Local Station Address}
register number : register number to be set (00 to 27)
value : value to be set. Input 2 hexadecimal digits (0 through
9 and A through F) followed by the number radix
designator H.
Local Station Address : local station address for 485 mode (000 to A22 ).
Response
xxx : current value (reference)
P0 : command accepted (setting)
N0 : command error (Except 485 mode)
N6 : memory register write error
Function
References or sets memory registers.
The current register value is referenced by omitting the “value” parameter.
Example
>@REG00 CR/LF : reference the contents of register 00
<01H CR/LF : displays current value
>@REG00 : 023 CR/LF : set value of memory register 00 to 023 (decimal)
<P0 CR/LF : command accepted
Notes
The register can be rewritten sequentially. However, to make its parameter valid
after rewriting it, re-supply the power, reset the modem or use RST command.
47
While rewriting the memory register, do not turn off the power until response is
output. Otherwise, the memory registers content may be collapsed.
When the response of the memory register write error is output, set the values
after initializing the memory register.
REN Reception Enable
Syntax
REN{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Enables wireless reception in the packet transmission mode.
The status when the modem is powered ON or reset follows bit 7 of REG22.
Use this command to enable wireless reception after reception is disabled with
the RDA command.
Example
>@RDA CR/LF : disable wireless reception
<P0 CR/LF : command accepted
>@REN CR/LF : enable wireless reception.
<P0 CR/LF : command accepted
RID Display Received Serial ID
Syntax
RID{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
XXXXXXXXXXXX : displays the received serial ID code（12 digits）
N0 : command error (Except 485 mode)
Function
Outputs the serial ID code in the received packet and displays it.
The serial ID code consists of 12 digits; upper three digits are 0 and the lower 9
digits are the product serial number of the transmitted-end modem.
Be noted that the serial ID code of the packet received last is displayed. When
packets are received from multiple stations and their data are stored in the receiving
buffer, those data may not be corresponding to the serial ID code readout with RID
command.
48
To use it more securely, it is recommended to readout the local serial ID code with
TID command and pad it (either all or a part of it) in the transmitting packet.
When no packet is received, “All Zero” is displayed as the result of this command
execution.
The serial ID code is no relation with ID code setting of REG04 and 05.
Example
>@RID CR/LF : requests the received remote station’s serial ID code
< XXXXXXXXXXXX CR/LF :outputs the received remote station’s serial ID code
RNO Reference and Set Retransmission Count
Syntax
RNO (:Retransmission count) {; Local Station Address}
Retransmission count : maximum number of retransmissions (000 to 255)
Local Station Address : local station address for 485 mode (000 to A22).
Response
xxx : current set value
P0 : command accepted
N0 : command error (Except 485 mode)
Function
This command references or sets the number of retransmissions (retransmission
count) to attempt before making decision as transmission failure.
The current value can be referenced by issuing the command with no parameter.
RNO command is used to temporarily change the retransmission count. To
change the default value, change the setting of REG11.
Example
>@RNO CR/LF : reference the retransmission count
<050 CR/LF : output the current set value (50 times)
>@RNO010 CR/LF : set the retransmission count to 10 times
<P0 CR/LF : command accepted
ROF RF Circuit Block Power Down
Syntax
ROF{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Turn off the power of RF circuit block and stops RF operation.
49
This function is used to save the current consumption when no transmit/receive are
required.
Example
>@ROF CR/LF : turn off RF circuit block
<P0 CR/LF : command accepted
>@RON CR/LF : turn on RF circuit block
<P0 CR/LF : command accepted
RON RF Circuit Block Power Up
Syntax
ROF{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Turn on the power of RF circuit block and activates RF operation.
Use this command to activate RF circuit block after its power down state set by
the ROF command.
The status when the modem is powered ON or reset, the RF circuit block is in the
operation state.
Example
>@ROF CR/LF : turn off RF circuit block
<P0 CR/LF : command accepted
>@RON CR/LF : turn on RF circuit block
<P0 CR/LF : command accepted
RST Reset
Syntax
RST{Local Station Address}
Local Station Address : local station address for 485 mode (000 to A22).
Response
P0 : command accepted
N0 : command error (Except 485 mode)
Function
Resets the modem to restore the power on state.
When any memory register is rewritten with REG command before issuing this
command, the value rewritten becomes valid and active. Temporary settings like
DAS and FRQ command become invalid and the memory register settings is
loaded.
50
Example
>@RST CR/LF : reset the modem
<P0 CR/LF : command accepted
Note
When a serial communication parameter in memory register is changed with REG
command, the response of “P0” returns according to the changed setting
parameter, which may cause communication error. In such a case, set the
communication parameter of the terminal equipment in correspondence with the
new setting immediately after the issuance of RST command.
SAS Reference and Set Local Station Address
Syntax
SAS (:set value){Local Station Address}
set value : new local station address (000 to 999)
Local Station Address : local station address for 485 mode (000 to 999).
Response
xxx : current value (reference)
P0 : connection established (setting)
N0 : command error
Function
References or sets the local station address.
The current value can be referenced by entering this command with no parameter.
For setting, input the desired value to set.
The SAS command is for temporary local address and setting. To more permanently
change the local station address value, use REG00.
Example
>@SAS001 : set the station address to 001
<P0 : connection established
>@SAS : reference the local station address
<001 : output the current value (001)
STS Read Status
Syntax
STS{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
xxxxxxxx : modem’s current status (x = 0 or 1)
N0 : command error (Except 485 mode)
Function
Reads the modem status register. (Represented with an 8-bit binary number.)
51
X X X X X X X X
Bit
Name
Status
1
0
0
Connection
Connected
Disconnected
1
Reception
Disabled
Enabled
2
Output message
Disabled
Enabled
3
Receive buffer
Data exist
Data empty
4
Transmit buffer
Data exist
Data empty
5
Reserved
-
-
6
Reserved
-
-
7
Reserved
-
-
Figure 6–2: Modem Status Bit Description
Example
>@STS CR/LF : read the current status
<00001010 CR/LF : Received data exist, Output message enabled,
Reception disabled ,Disconnected.
TBN Transmit Binary Data
Syntax
TBN[destination address][message byte length]{Local Station Address}[message]
Destination address : address of the transmission (000 to A23)
Message byte length : message length (001 to 255)
Local Station Address : local station address for 485 mode (000 to A22).
Message byte : arbitrary binary data (255 or less)
Response
P0 : data transmission succeeded
P1 : command accepted, data being transmitted
N0 : command error (Except 485 mode)
N1 : data transmission failed -- no response from destination station
N2 : data transmission failed -- destination station is in the reception disabled state
N3 : data transmission failed -- destination station cannot receive because its receive
buffer is full
Function
Transmits binary data in the packet transmission mode.
Any message length between 1 to 255 bytes is accepted.
The modem counts the number of message characters and transmits the message.
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem retransmits the message the number of times of the
Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>TBN002005HELLO CR/LF : transmit “HELLO” from station 001 to station 002
<P1 CR/LF : data being transmitted
<P0 CR/LF : data transmission succeeded.
>@TBN003004MAIL CR/LF : retransmit “MAIL” from station 001 to station 003
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<P1 CR/LF : data being transmitted
<N1 CR/LF : transmission failed, no response from destination station
Notes
Set the message length to 255 byte or less. The message length exceeding 255
byte will be command error.
Message must be terminated with 2 byte (CR/LF) character, others will be
command error.
In broadcast transmission, the receiving result of the destination station cannot
be confirmed at the sender side.
TBR Transmit Binary Data through Repeater
Syntax
TBR [repeater address] [destination address] [message byte length]{Local Station
Address}[message]
Repeater address : repeater address to pass through (000 to 999)
Destination address : address of destination station (000 to A23)
Message byte length : message byte length (001 to 255)
Local Station Address : local station address for 485 mode (000 to A22).
Message byte : arbitrary binary data (255 or less)
Response
P0 : data transmission succeeded
P1 : command accepted, data being transmitted
P2 : data packet reached to repeater
N0 : command error (Except 485 mode)
N1 : data transmission failed -- no response from destination station
N2 : data transmission failed -- destination station is in the reception disabled state
N3 : data transmission failed -- destination station cannot receive because its receive
buffer is full
Function
In the packet transmission mode, transmits binary data through repeater.
Any message length between 1 to 255 bytes is accepted.
The modem counts the number of message characters and transmits the message.
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem retransmits the message the number of times of the
Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>TBR100002005HELLO CR/LF : transmit “HELLO” from station 001 to station 002
<P1 CR/LF : data being transmitted
<P2 CR/LF : data packet reached to repeater
<P0 CR/LF : data transmission succeeded
Notes
Set the message length to 255 byte or less. The message length exceeding 255
byte will be command error.
Message must be terminated with 2 byte (CR/LF) character, others will be
command error.
In broadcast transmission, the receiving result of the destination station cannot
be confirmed at the sender side.
53
TID Display Local Station Serial ID
Syntax
TID{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
XXXXXXXXXXXX : displays the local serial ID code (12 digits)
N0 : command error (Except 485 mode)
Function
Readout the local serial ID code of the modem and display it. This command
corresponds to RID command.
The local serial ID code consists of 12 digits; upper three digits are 0 and the
lower 9 digits are the product serial number of the modem.
Be noted the usage of RID command, the serial ID code of the packet received
last is displayed. When packets are received from multiple stations and their data
are stored in the receiving buffer, those data may not correspond to the serial ID
code readout with the RID command.
To use it more securely, it is recommended to readout the local serial ID code with
the TID command and pad it (either all or a part of it) in the transmitting packet.
The serial ID code is no relation with ID code setting of REG04 and 05.
Example
>@TID CR/LF : requests the modem’s local serial ID code
< XXXXXXXXXXXX CR/LF :outputs the modem’s local serial ID code
TS2 Teat radio link
Syntax
TID{Local Station Address}
Local Station Address : local station address for 254mode (000 to 254).
Response
P0 : command accepted
Connect : connect link, start measurement
oooooooooooooooooooooooooooooooooo
BER=0.0E-3 PER=0.00 PWR=-060dBm : read out
Disconnect : disconnect link
N0 : command error
N2 : destination modem rejects reception
N7 : the modem is trying to establish synchronization and cannot start the
test
Function
To help evaluate the radio link condition, this command measures and outputs the
“Bit Error Rate,” “Packet Error Rate” and “Signal Intensity.”
54
The command accompanying a destination address requests a connection to the
destination address. The command without a destination address requests a
connection to the address defined by the DAS command. The modem that has
received a connection request starts actions of the TS2 immediately.
The modem to which the command is entered is called “TS2 master.” The
destination modem is called “TS2 slave.” The TS2 slave does not output any
measurement results.
Ten-consecutive failures in reception disconnect the radio link. Meanwhile, the TS2
master keeps outputting connection request.
The TS2 master modem renews the measurement result approximately every
0.27second and continues outputting the measurement results until the TS2
command is terminated. To stop measurement, enter the command “RST” or turn
off the modem.
The radio modem, being turned into a special mode by this TS2 command, may
output command error or irrelevant responses against all commands except RST
command.
The TS2 command always conducts “address check.”
TXR Transmit Text Data through Repeater
Syntax
TXR [repeater address] [destination address]{Local Station Address}[message]
repeater address : address of repeater to pass through (000 to 999)
destination address : address of destination station (000 to A23)
Local Station Address : local station address for 485 mode (000 to A22).
message : any text data (255 or less)
Response
P0 : data transmission succeeded
P1 : command accepted, data being transmitted
P2 : data packet reached to repeater
N0 : command error (Except 485 mode)
N1 : data transmission failed -- no response from the destination station
N2 : data transmission failed -- destination station is in the reception disabled state
N3 : data transmission failed -- destination station cannot receive because its receive
buffer is full.
Function
Transmits text data in the packet transmission mode through repeater.
Any message length between 1 to 255 bytes is accepted. The completion of data
input is recognized by the terminator.
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem retransmits the message the number of times of the
Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>@TXR100002HELLO CR/LF: transmits HELLO from station 001 to station 002 through
repeater 100
<P1 CR/LF : data being transmitted
55
<P2 CR/LF : data packet reached to repeater
<P0 CR/LF: data transmission succeeded
Notes
Set the message length to 255 byte or less. The message length exceeding 255
byte will be command error.
When the same character as the terminator (CR/LF) is contained in a message, the
modem distinguishes it as the end of a command and ignore the subsequent data. In
such a case, use TBR command.
In broadcast transmission, the receiving result of the destination station cannot
be confirmed at the sender side.
TXT Transmit Text Data
Syntax
TXT [destination address]{Local Station Address}[message]
destination address : address of destination station (000 to A23)
Local Station Address : local station address for 485 mode (000 to A22).
message : any text data (255 or less)
Response
P0 : data transmission succeeded
P1 : command accepted, data being transmitted
N0 : command error (Except 485 mode)
N1 : data transmission failed - no response from the destination station
N2 : data transmission failed - destination station is in the reception disabled state
N3 : data transmission failed – destination station cannot receive because its receive
buffer is full.
Function
Transmits text data in the packet transmission mode.
Any message length between 1 to 255 bytes is accepted. The completion of data
input is recognized by the terminator (CR/LF).
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem will retransmit the message the number of times of
the Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>@TXT002HELLO CR/LF: transmits HELLO from station 001 to station 002
<P1 CR/LF : data being transmitted
<P0 CR/LF: data transmission succeeded
>@TXT003MAIL CR/LF : transmits MAIL from station 001 to station 003
<P1 CR/LF : data being transmitted
<N1 CR/LF: transmission failed. no response from destination station
Notes
Set the message length to 255 byte or less. The message length exceeding 255
byte will be command error.
When the same character as the terminator (CR/LF) is contained in a message, the
modem distinguishes it as the end of a command and ignores the subsequent data.
In such a case, use TBN command.
56
In broadcast transmission, the receiving result of the destination station cannot
be confirmed at the sender side.
VER Reference Version Information
Syntax
VER{Local Station Address}
Local Station Address : local station address for 485 mode (000 to 999).
Response
Program Version x.xxx :Hardware system version
N0 : command error (Except 485 mode)
Function
Reads the modem’s hardware system version.
Example
>@VER CR/LF : read the version information
<Ver 1.000 CR/LF : this modem firmware is version 1.000
Futaba Corporation Rev. 120626-02
7 APPENDIX
7
SECTION
58
7.1 Conversion Circuit
Examples of the level conversion circuit are shown as a reference, which is just for the
confirmation of system operation. This example does not guarantee the operation under
users’ actual operation environment.
7.1.1 RS-232C Level Converter
Wire the control line when necessary. Tie down unused input pin(s) to GND and leave the
485ENB pin open.
1
5
9
6
STAND_BY
DSR
RxD
RTS
TxD
CTS
DTR
DCDin
GND
DSUB
9pin
RS232C
Driver/receiver
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Vcc
10uF
0.1uF
RxD
TxD
GND
DSR
RTS
CTS
Vcc
POWER ON
RX/TX
/INIT
Reserve
STAND_BY
Reserve
Reserve
Figure B–1: RS-232C Level Conversion Circuit
7.1.2 RS422 Level Converter
Wire the output terminator (100 ohm) of the RS422 line driver, the input terminator (100
ohm) of the receiver, the input pull-up (1k ohm) and the input pull-down (1k ohm), when
necessary.
Provide a surge absorber (e.g. Z2012 made by Ishizuka Denshi) when long RS422 line is
used or there is much noisy environment, etc.
7.1.3 RS485 Level Converter
Wire the terminator of the RS485 bus (100 ohm), the input pull-up (1k ohm) and the input
pull-down (1k ohm), when necessary.
When long RS485 line is used or there is much noise, provide the surge absorber (e.g.
Z2012 made by Ishizuka Denshi) according to the situation.
Futaba Corporation Rev. 120626-02
7.2 Specification of the Connectors
(1) Serial Communication connector A
Connector: MOLEX 53780-1490 (14 pins)
(2) Serial Communication connector B
Connector: JST SM03B-SRSS-TB(LF)(SN) (3pin)
(2) Antenna connector
RF connector: HIROSE U.FL-R-SMT
The antenna connector is guaranteed for 30 times of plugging in/out.
When plugging out the antenna connector, use the specially prepared
tool of E.FL-LP-N, provided by HIROSE (HIROSE Product No.
CL331-0441-9).
60
7.3 Specification
7.3.1 Radio Characteristics
Engineering standard FCC Part 15.247 (no user license required)
>FCC ID : AZP-FDQ02T2
RSS-210 ISSUE6 (no user license required)
>CERTIFICATION No. 2914D-FDQ02T2
RF power output 22.7mW max.
Modulation Direct sequence spread spectrum
Communication scheme Single communication
Frequency band 2405.376 to 2475.008 MHz
Frequency channel 22 channels
Data barer rate 134 kbps
Oscillation PLL synthesizer
Service area In an outdoor environment: more than 3000 feet (line-of-sight)
RF connector Hirose U.FL-R-SMT
In/out of connector 30 times max. using E.FL-LP-N extractor (for exclusive use)
7.3.2 Communication Control
Radio link control Command control
Error checking CRC-CCITT (16 bit)
Error handling ARQ (Automatic Retransmission Request)
Multi-access function Connect on clearest channel from selected frequency group
7.3.3 Data Terminal Interface
Physical interface Molex 53780-1470 (14 pins)
JST SM03B-SRSS-TB(LF)(SN) (3pin)
Interface specification Serial communication
Input CMOS level (5V tolerant with hysteresis)
Output CMOS level
Communication Full-duplex or half-duplex system
Synchronization Asynchronous
Transmit/receive buffer Approx. 3 k bytes in total
Baud rate 300 / 600 / 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 115200 bps
Flow control Hardware flow / Software flow
Data length 7 or 8 bit
Stop bit 1 or 2 bit
Parity Even, odd, or none
7.3.4 Power Supplying
7.3.4.1 Modem (Connector A)
Supply voltage 3.5 to 7.0 V DC
Current consumption 110 mA or less in the active mode
35 mA or less in the RF stop mode
1mA or less in the standby mode
7.3.4.2 Power Amp. (Connector B)
Supply voltage 6.0 to 9.0 V DC
Current consumption 150 mA or less in the transmitter mode
5 mA or less in the receiver mode
Futaba Corporation Rev. 120626-02
7.3.5 Environmental
Operating temperature -20 to +50 ℃
Storage temperature -30 to +60℃
Operating humidity 90%RH max. (no condensation)
Storage humidity 90%RH max. (no condensation)
Vibration resistance JIS-C-60068-2-6:1999 (50m/s2, 10 to 150 Hz, 15 cycles
Shock resistance JIS-C-60068-2-27:1995 (500m/s2)
(JIS specification is Japanese Industry Standard)
7.3.6 Miscellaneous
Memory register Rewritable times: approx. 1 million times
Case Ni plated steel plate
Outer dimensions 60 (W)×50(D)×8(H)mm
Weight Aprox. 30g
† Operating distances depend on the conditions such as obstructions and electrical interference. Under ideal, line-of-
sight conditions, reliable operating distances greater than specified may be achieved. Optional, directional antennas
can significantly increase the operating range.
* Specifications and appearance are subject to change without prior notice.
62
7.4 Outline View
7.4.1 FDQ02T
7.4.2 Communication Cable A
No.1
No.14
No.1
No.3
Communication Connector A
Communication Connector B
Futaba Corporation Rev. 120626-02
7.4.3 Antenna Type A
7.4.4 Antenna Type B
7.4.5 Antenna Type C
64
Futaba Corporation
Electronic Systems Business Center
1080 Yabutsuka Chosei
Chiba, 299-4395 JAPAN
Tel: +81 (475) 32-6173,
Fax: +81(475) 32-6179
Internet: www.futaba.co.jp
In the United States
Futaba Corporation of America
Industrial Radio Control Department
1605 Penny Lane
Schaumburg, IL 60173
Tel: (847) 884-1444,
Fax: (847) 884-1635
Internet: www.futaba.com