Yamatake Azbil CMQ-V Series User manual

CMQ-V Series
Digital Mass Flow Controller
User's Manual
Communications
No. CP-SP-1197E
Thank you for purchasing the CMQ-V
Series Digital Mass Flow Controller.
This manual contains information for
ensuring correct use of the CMQ-V
Series communication functions.
This manual should be read by those
who design and maintain devices that
use the CMQ-V Series communication
functions. Be sure to keep this manual
nearby for handy reference.

This product has been designed, developed and manufactured for general-purpose
application in machinery and equipment.
When using this product in application requiring particular safety, special care should
be taken to implement a fail-safe and/or redundant design concept as well as a
periodic maintenance program.
Do not use this product in applications outlined below requiring particular safety.
• Safety devices for plant worker protection
• Start/stop control devices for transportation and material handling machines
• Aeronautical/aerospace machines
• Control devices for nuclear reactors
Never use this product in applications where human safety may be put at risk.
RESTRICTIONS ON USE
Micro FlowTM, µFTM, CMQTM are trademarks of Yamatake Corporation.
©2007 Yamatake Corporation ALL RIGHTS RESERVED
If it is necessary to change the parameters of the CMQ-V Series frequently by
communication, write data at addresses of RAM. The guaranteed data write count at
the EEPROM addresses is limited to 100,000 times.
Note that the data in RAM is cleared, and the data in EEPROM is copied on RAM if the
power supply to the CMQ-V Series interrupted.
IMPORTANT
Be sure that the user receives this manual before the product is used.
Copying or duplicating this user’s manual in part or in whole is forbid-
den. The information and specifications in this manual are subject to
change without notice.
Considerable effort has been made to ensure that this manual is free
from inaccuracies and omissions. If you should find an error or omis-
sion, please contact Yamatake Corporation.
In no event is Yamatake Corporation liable to anyone for any indirect,
special or consequential damages as a result of using this product.
NOTICE

■About Icons
Safety precautions are for ensuring safe and correct use of this product, and for
preventing injury to the operator and other people or damage to property. You
must observe these safety precautions. The safety precautions described in this
manual are indicated by various icons.
The following describes the icons and their meanings. Be sure to read and
understand the following descriptions before reading this manual.
■Examples
i
Triangles warn the user of a possible danger that may be caused by
wrongful operation or misuse of this product.
These icons graphically represent the actual danger. (The example on
the left warns the user of the danger of electrical shock.)
White circles with a diagonal bar notify the user that specific actions are
prohibited to prevent possible danger.
These icons graphically represent the actual prohibited action. (The
example on the left notifies the user that disassembly is prohibited.)
Black filled-in circles instruct the user to carry out a specific obligatory
action to prevent possible danger.
These icons graphically represent the actual action to be carried out.
(The example on the left instructs the user to remove the plug from the
outlet.)
SAFETY PRECAUTIONS
CAUTION Cautions are indicated when mishandling this product might
result in minor injury to the user, or only physical damage to
this product.

ii
CAUTION
Use the CMQ-V Series within the operating ranges recommended in the
specifications of user's manual, CP-SP-1204E and CP-SP-1205E
(temperature, humidity, voltage, vibration, shock, mounting direction,
atmosphere, etc.). Failure to do so might cause malfunction.
Be sure to turn the power off before connecting the controller. Failure
to do so might cause malfunction.
Wire this controller in compliance with the predetermined standards.
Also wire the controller with specified cables and recognized
installation methods.
Failure to do so might cause malfunction.
Make sure that wire scraps, chips or water do not enter inside the case
of the controller. Failure to heed this caution may lead to malfunction.
If there is a risk of a power surge caused by lightning, use Yamatake
Corporation's SurgeNon to prevent possible fire or equipment failure.
Be sure to check that the wiring is correct before turning the power on.
Incorrect wiring could cause damage or malfunction.
Do not disassemble the controller. Doing so might cause malfunction.

iii
CMQ-V Series Digital Mass Flow Controller
Manual No. CP-SP-1204E
First-time users of the CMQ-V Series, and those in charge of maintenance
or hardware design for incorporating a CMQ-V Series controller in instru-
mentation should read this manual.
This manual outlines the product, tells how to install, wire, and incorporate
the product into instrumentation, and describes its operation, inspection and
maintenance, troubleshooting, and hardware specifications.
CMQ-V Series Digital Mass Flow Controller (for Hydrogen and Helium Gases)
Manual No. CP-SP-1205E
First-time users of the CMQ-V Series (for hydrogen and helium gases), and
those in charge of maintenance or hardware design for incorporating a
CMQ-V Series controller (For hydrogen and helium gases) in instrumenta-
tion should read this manual.
This manual outlines the product, tells how to install, wire, and incorporate
the product into instrumentation, and describes its operation, inspection and
maintenance, troubleshooting, and hardware specifications.
Digital Mass Flow Controller CMQ-V Series: Communications
Manual No.CP-SP-1197E
This manual.
Those using the communications functions of the CMQ-V series should
read this manual.
This manual describes an outline of communications, wiring,
communications procedures, CMQ-V series communications data, trouble-
shooting, and communications specifications.
The Role of This Manual
Four manuals have been prepared for the CMQ-V Series. Read the manual according to your specific requirements.
The below lists all the manuals that accompany the CMQ-V Series and gives a brief outline of the manual. If you
do not have the required manual, contact Yamatake Corporation or your dealer.
MLP100 Loader Package for CMQ-V Series Digital Mass Flow Controller
Manual No. CP-SP-1216E
This manual is supplied with the MLP100 Loader Package.
The manual describes the software used to make various settings for CMQ-
V Series using a personal computer. Personnel in charge of design or set-
ting of a system using CMQ-V Series must thoroughly read this manual.
The manual describes installation of the software into a personal computer,
operation of the personal computer, various functions, and setup proce-
dures.

Organization of This User's Manual
iv
This manual is organized as follows:
Chapter 1. OUTLINE
This chapter briefly describes communication functions of the CMQ-V
Series.
Chapter 2. WIRING
This chapter describes RS-485 wiring methods to make a communication
link between the CMQ-V Series and other instruments.
Chapter 3. SETTING
This chapter describes CMQ-V Series communication settings.
Chapter 4. COMMUNICATION PROCEDURE
This chapter describes communication procedures, message configuration,
data read/write and signal timing operations.
Chapter 5. COMMUNICATION DATA TABLE
This chapter provides various data address tables for communications on
the CMQ-V Series.
Chapter 6. COMMUNICATION PROGRAM FOR MASTER STATION
This chapter gives precautions for programming and an example of a com-
munication program for the CMQ-V Series.
Chapter 7. TROUBLESHOOTING
This chapter describes checkpoints to diagnose failures in CMQ-V Series
communications.
Chapter 8. SPECIFICATIONS
This chapter lists communication specifications for the CMQ-V Series.
APPENDIX
The appendix provides code tables.
Conventions Used in This Manual
The following conventions are used in this manual:
Handling Precautions
: Handling Precautions indicate items that the user should pay attention
to when handling the CMQ-V Series.
Note : Notes indicate useful information that the user might benefit by
knowing.
(1), (2), (3) : The numbers with the parenthesis indicate steps in a sequence or
indicate corresponding parts in an explanation.
DISP key : This indicates a key on the setup display.

Contents
v
SAFETY PRECAUTIONS
The Role of This Manual
Organization of This User's Manual
Conventions Used in This Manual
Chapter 1. OUTLINE
■Features •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1
Chapter 2. WIRING
2-1 RS-485 Connection ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••3
2-2 Connector Pin Layout of the CMQ-V Series••••••••••••••••••••••••••••••••••4
Chapter 3. SETTING
■Setting method of communication functions ••••••••••••••••••••••••••••6
■Setting items of communication functions•••••••••••••••••••••••••••••••6
Chapter 4. COMMUNICATION PROCEDURE
4-1 Outline of Communication •••••••••••••••••••••••••••••••••••••••••••••••••••7
■Communication procedures •••••••••••••••••••••••••••••••••••••••••••••7
4-2 Message Structure•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••8
■Message structure •••••••••••••••••••••••••••••••••••••••••••••••••••••••8
■Data link layer••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••8
■Application layer••••••••••••••••••••••••••••••••••••••••••••••••••••••••10
4-3 Description of Commands••••••••••••••••••••••••••••••••••••••••••••••••••11
■Continuous data read command (RS command) •••••••••••••••••••••••11
■Continuous data write command (WS command)•••••••••••••••••••••••12
■Continuous data read command (RD command) •••••••••••••••••••••••13
■Continuous data write command (WD command) ••••••••••••••••••••••14
4-4 Termination Code Table ••••••••••••••••••••••••••••••••••••••••••••••••••••15
■ Normal and warning termination •••••••••••••••••••••••••••••••••••••••••15
■ Error termination •••••••••••••••••••••••••••••••••••••••••••••••••••••••••15
4-5 Timing Specifications ••••••••••••••••••••••••••••••••••••••••••••••••••••••16
■ Timing specifications for instruction and response message ••••••••••••16
■ RS-485 driver control timing specifications ••••••••••••••••••••••••••••••••16
■ Other precautions ••••••••••••••••••••••••••••••••••••••••••••••••••••••••17

vi
Chapter 5. COMMUNICATION DATA TABLE
5-1 Basic Communication Data Processing ••••••••••••••••••••••••••••••••••••18
■Communication data types and formats ••••••••••••••••••••••••••••••••18
■Communication data storage memory ••••••••••••••••••••••••••••••••••18
■Data address••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••19
■Data read / write count••••••••••••••••••••••••••••••••••••••••••••••••••19
■Data unit and decimal point position •••••••••••••••••••••••••••••••••••19
5-2 Communication Data Table•••••••••••••••••••••••••••••••••••••••••••••••••20
■Device related data •••••••••••••••••••••••••••••••••••••••••••••••••••••20
■Operating status related data •••••••••••••••••••••••••••••••••••••••••••21
■Flow set value ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••23
■Totalized flow related data ••••••••••••••••••••••••••••••••••••••••••••••23
■Function setup related data•••••••••••••••••••••••••••••••••••••••••••••24
■Parameter setup related data •••••••••••••••••••••••••••••••••••••••••••30
Chapter 6. COMMUNICATION PROGRAM FOR MASTER STATION
6-1 Precautions for Programming ••••••••••••••••••••••••••••••••••••••••••••••32
6-2 Examples of Communication Program •••••••••••••••••••••••••••••••••••••33
■Before executing the program ••••••••••••••••••••••••••••••••••••••••••33
■Executing the program •••••••••••••••••••••••••••••••••••••••••••••••••33
■Data read/write sample program ••••••••••••••••••••••••••••••••••••••••34
Chapter 7. TROUBLESHOOTING
■Check items in case communication is disabled •••••••••••••••••••••••39
Chapter 8. SPECIFICATIONS
■RS-485 specifications•••••••••••••••••••••••••••••••••••••••••••••••••••40
APPENDIX
■Code table ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••41
■Connection with CMC10L •••••••••••••••••••••••••••••••••••••••••••••••42

Chapter 1. OUTLINE
If the optional model is provided with the RS-485 communications function, communication with a PC, PLC or
other host devices are available using a user-configured program.
The communication protocol can be selected from the Controller Peripheral Link (CPL) communications
(Yamatake's host communication protocol). This chapter describes the CPL communications.
■Features
The features of the CMQ-V's communications function are as follows:
• Up to 31 units can be connected to a single master station as a host device.
• When the communication specifications of the host device conform to the RS-
232C interface, the communication converter CMC10L (sold separately) is
required. The CMC10L allows the conversion between RS-232C and RS-485.
• Almost all of the device parameters can be communicated.
For details on communication parameters, refer to;
Chapter 5, COMMUNICATION DATA TABLE.
1
RS-485 connection example
Slave station
(CMQ-V series, etc)
Master station
Connection between master station and slave station
RS-232C
RS-485 (3-wire system)
RS-232C/RS-485 converter

Chapter 2. WIRING
2
Handling Precautions
• Wiring way except the RS-485 communications wiring, refer to;
CMQ-V series Digital Mass Flow Controller user's manual No.CP-SP-
1204E or CMQ-V Series Digital Mass Flow Controller (for Hydrogen and
Helium Gases) user's manual No.CP-SP-1205E.
CAUTION
Use the CMQ-V Series within the operating ranges recommended in the
specifications of user's manual, CP-SP-1204E and CP-SP-1205E
(temperature, humidity, voltage, vibration, shock, mounting direction,
atmosphere, etc.). Failure to do so might cause malfunction.
Be sure to turn the power off before connecting the controller. Failure to do so
might cause malfunction.
Wire this controller in compliance with the predetermined standards. Also
wire the controller with specified cables and recognized installation methods.
Failure to do so might cause malfunction.
Make sure that wire scraps, chips or water do not enter inside the case of the
controller. Failure to heed this caution may lead to malfunction.
If there is a risk of a power surge caused by lightning, use Yamatake
Corporation's SurgeNon to prevent possible fire or equipment failure.
Be sure to check that the wiring is correct before turning the power on.
Incorrect wiring could cause damage or malfunction.
Do not disassemble the controller. Doing so might cause malfunction.

2 - 1 RS-485 Connection
3
Chapter 2. WIRING
An example of connection methods in such a case is shown below.
• Connect terminating resistors of 150Ω±5%, 1/2W min. at each end of the trans-
mission line.
• Terminal block is required for the CMQ-V series because of the connector type
connection.
• The cable to the terminal block from the CMQ-V series must be as short as pos-
sible.
• The FG grounding must not be made at the both shielded wire ends but only at
one location.
• Yamatake’s CMC10L001A000 can be used as a converter of the host station.
Handling Precautions
Be sure to connect SG terminals each other. Failure to do so might cause
unstable communications.
FG
FG
CMQ-V Series
(slave station)
CMQ-V Series
(slave station)
CMQ-V Series
(slave station)
CMQ-V Series
(slave station)
Terminating
resistor
Terminating
resistor
Shielded cable
Shielded cable
Terminal
block
Terminal
block
DA
DB
SG
DA
DB
SG
7
8
9
7
8
9
DA
DB
SG
FG
Master station
DA
DB
SG
DA
DB
SG
7
8
9
7
8
9

2 - 2 Connector Pin Layout of the CMQ-V Series
4
Chapter 2. WIRING
The following shows the connector pin layout of the CMQ-V Series with the communication functions:
●Connector pin layout
Mounted connector part number: HIF3BA-20PA-2.54DS
Manufacturer: Hirose Electric Co. Ltd.
●Mating connector table (All connectors are made by Hirose Electric Co. Ltd.)
20 19
21
Front view
Connector type Mating connector part No. Mating contact Recommended wire
part No.
Contact crimp type HIF3BA-20D-2.54C HIF3-2226SCC AWG#22 to #26
(single wire allowed)
Forced pressure HIF3BA-20D-2.54R Not required AWG#28 (Flat ribbon cable
type only)

5
Chapter 2. WIRING
●Connector signal table
Handling Precautions
• Either pin No. 6 and pin No. 9 is able to connect as SG.
• For details on wiring way, see the CMQ-V Series Digital Mass Flow
Controller user's manual No. CP-SP-1204E or CMQ-V Series Digital Mass
Flow Controller (for Hydrogen and Helium Gases) user's manual No. CP-
SP-1205E.
Pin Signal name Description Remarks
number
20 +5V (5mA max.) 5Vdc reference voltage output 5mA max.
19 FLOW OUT Instantaneous flow rate (PV) 0 to 5Vdc/ 1 to 5Vdc/ 0 to 20mAdc/
voltage output/ setting flow rate 4 to 20mAdc
(SP) output
18 A.GND Analog ground Common of analog signals
17 FLOW SP INPUT Instantaneous flow rate setting 0 to 5Vdc/ 1 to 5Vdc/ 0 to 20mAdc/
(SP) voltage input 4 to 20mAdc
16 MODE INPUT External 3-stage switching input 3-stage switching input of Open/ GND/ 5V
15 DI3 External contact input 3 Switching input of Open/ GND
14 DI2 External contact input 2
13 DI1 External contact input 1
12 EV2 OUT Event output 2 Open collector non-insulated output
11 EV1 OUT Event output 1
10 ALM OUT Alarm output
9 SG (D.GND) RS-485 communications SG Same as the common of digital signal
8 DB RS-485 communications DB
7 DA RS-485 communications DA
6 SG (D.GND) RS-485 communications SG Same as the common of digital signal
5 TEST For test For test (connecting is prohibited)
4 POWER GND Power supply ground In order to decrease the voltage drop
3 POWER GND Power supply ground caused by wiring resistance, connect each
2 POWER (24V) Power supply +24Vdc two wires to the power supply in parallel.
1 POWER (24V) Power supply +24Vdc

Chapter 3. SETTING
6
Setup the following to operate the communication functions of the CMQ Series:
■Setting method of communication functions
Follow the following procedure to set the functions:
(1)Display the instantaneous flow rate by pressing the DISP key.
>> “PV” lamp and “L/min” lamp ("mL/min" in MQV9200) start lighting.
(2) Keep pressing the ▼key and the ENT key at the same time for 3 seconds or
more.
>> The item No. c-0 1 appears on the 7-segment display and mode changes to
the function setup mode.
(3) Select a desired setup item by pressing either ▲key or ▼key and then press
the ENT key.
>> The current setting flashes on the 7-segment display.
(4) Select a desired setting by pressing either ▲key or ▼key.
(5) After a desired setup mode is selected, confirm it by pressing the ENT key.
>> At this point the setup is updated. (After about one second, the item number
display is returned.)
(6) If other setting items are desired, return to (3) for setting. If no other item is
desired to be set, proceed to the item (7).
(7) Press the DISP key to make the status from the function setup mode to instan-
taneous flow rate display.
Handling Precautions
• If any key is not pressed for one minute after the function setup mode,
the display automatically returns to the instantaneous flow rate display.
• If the DISP key is pressed without pressing the ENT key after carrying
out the operation in step (4), the setting remains at the previous value
without being update.
■Setting items of communication functions
Function Item Setup item and description Factory Remarks
setup item setting
c-3 0 Station address 0: Communications function 0 The communications function does
disabled not work at 0. Set a different ad-
1 to 127: Station address dress from the slave station.
c-3 1 Transmission speed 0: 38400bps 1
1: 19200bps
2: 9600bps
3: 4800bps
4: 2400bps
c-3 2 Data format 0: 8 bit data, even parity, 1 stop bit 0
1: 8 bit data, no parity, 2 stop bits

Chapter 4. COMMUNICATION PROCEDURE
4 - 1 Outline of Communication
■Communication procedures
The communication procedure is as follows:
(1)The instruction message is sent from the host device (master station) to one unit
(slave station) to communicate with.
(2)The slave station receives the instruction message, and performs read or write
processing according to the content of the message.
(3)The slave station sends a message corresponding to the processing content as a
response message.
(4)The master station receives the response message.
7

4 - 2 Message Structure
8
Chapter 4. COMMUNICATION PROCEDURE
■Message structure
The following shows the message structure:
Messages are broadly classified into two layers; the data link layer and the
application layer.
• Data link layer
This layer contains the basic information required for the communication such
as the destination of the communication message and the check information of
the message.
• Application layer
Data is read and written in this layer. The content of the layer varies
according to the purpose of the message.
Messages comprise parts (1) to (9) as shown in the figure below.
The command (details sent from the master station) and the response (details
returned from the slave station) are stored in the application layer.
■Data link layer
●Outline
The data link layer is of a fixed length. The position of each data item and the
number of its characters are already decided. Note, however, that the data
positions of the data link layer from ETX onwards shift according to the number
of characters in the application layer. The character length, however, remains
unchanged.
●Response start conditions
• The device sends the response message only when (1) message structure, station
address, sub-address, checksum and message length of a single frame in the data
link layer are all correct. If even one of these is incorrect, no response messages
are sent, and the device waits for new message.
• Number of word addresses accessible by a single frame
02H 58H 0DH03H
STX X ETX
0AH
CR LF
(2)(1) (3) (4) (5) (6) (7) (8) (9)
Data link layer Application layer Data link layer
1 frame
(1) STX (start of message)
(2) Station address
(3) Sub-address
(4) Device code
(5) Send message = command,
response message = response
(6) ETX (end of command/response)
(7) Checksum
(8) CR (delimiter)
(9) LF (delimiter)
Type Description of command RAM area EEPROM area
RS Decimal format read command 1 to 10 1 to 10
WS Decimal format write command 1 to 10 1 to 10
RD Hexadecimal format read command 1 to 10 1 to 10
WD Hexadecimal format write command 1 to 10 1 to 10

9
Chapter 4. COMMUNICATION PROCEDURE
●List of data link layer data definitions
The following list shows the definitions for data in the data link layer:
●Description of data items
• STX (02H)
When STX is received, the device judges this to be the start of the send message.
For this reason, the device returns to the initial state whatever reception state it
was in, and processing is started on the assumption that the STX, the first
character, has been received. The purpose of this is to enable recovery of the
device's response at the next correct message (e.g. RETRY message) from the
master station in the event that noise, for example, causes an error in the sent
message.
• Station address
Of the messages sent by the master station, the device creates response messages
only when station addresses are the same. Station addresses in the messages are
expressed as two-digit hexadecimal characters.
The station address is set up by the station address setup (setup setting C65).
However, when the station address is set to 0 (30H 30H), the device creates no
response even if station addresses match.
The device returns the same station address as that of the received message.
• Sub-address
The C35/36 does not use the sub-address. For this reason, set "00" (30H 30H).
The device returns the same sub-address as that of the received message.
• Device code
The device sets X (58H) or x (78H) as the device code. This code is determined
for each device series, and other codes cannot be selected. The device returns the
same device code as that of the received message. X (58H) is used as the default,
and x (78H) is used for judging the message as the resend message.
• ETX
ETX indicates the end of the application layer.
• Checksum
This value is for checking whether or not some abnormality (e.g. noise) causes
the message content to change during communications.
The checksum is expressed as two hexadecimal characters.
Data name Character code Number of Meaning of data
characters
STX 02H 1 Start of message
Station address 0 to 7FH are expressed as 2 Identification of device
hexadecimal character codes. to communicate with
Sub-address "00" (30H, 30H) 2 No function
Device code "X" (58H) or "x" (78H) 1 Device type
ETX ETX (03H) 1 End position of the
application layer
Checksum 00H to FFH are expressed as two- 2 Checksum of message
digit hexadecimal character codes.
CR 0DH 1 End of message (1)
LF 0AH 1 End of message (2)

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Chapter 4. COMMUNICATION PROCEDURE
• How to calculate a checksum
(1) Add the character codes in the message from STX through ETX in single
byte units.
(2) Take two's complement of the low-order one byte of the addition result.
(3) Convert the obtained two's complement to a two-byte ASCII code.
The following is a sample checksum calculation:
[Sample message]
STX: 02H
'0': 30H (first byte of the station address)
'1': 31H (second byte of the station address)
'0': 30H (first byte of the sub-address)
'0': 30H (second byte of the sub-address)
'X': 58H (device code)
'R': 52H (first byte of the command)
'S': 53H (second byte of the command)
(omitted)
ETX: 03H
(1) Add the character codes in the message from STX through ETX in single
byte units.
The add operation in single byte units is as follows:
02H + 30H + 31H + 30H + 30H + 58H + 52H + 53H + • • • + 03H.
Assume that the result is 376H.
(2) The low-order one byte of the addition result 376H is 76H. The two's
complement of 76H is 8AH.
(3) Convert the obtained 8AH to a two-byte ASCII code.
The result is:
'8': 38H
'A': 41H,
and the two bytes, '8'(38H) and 'A'(41H), are the checksum.
• CR/LF
This indicates the end of the message. Immediately after LF is received, the
device enters a state allowed to process the received message.
■Application layer
The table below shows the configuration of the application layer.
Item Description
Command "RS" (decimal number format continuous address data read command)
"WS" (decimal number format continuous address data write command)
"RD" (hexadecimal number format continuous address data read command)
"WD" (hexadecimal number format continuous address data write command)
Data delimiter RS, WS: "," (comma)
RD, WD: None
Word address RS, WS: "501W", etc.
RD, WD: "01F5", etc.
Read count Numerical value of characters expressed as "1" for example
Numerical value RS, WS: Numerical value of characters expressed as "100" for example
to be written RD, WD: Numerical value of characters expressed in hexadecimal as
"0064" for example

4 - 3 Description of Commands
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Chapter 4. COMMUNICATION PROCEDURE
■Continuous data read command (RS command)
This command reads data of continuous addresses by a single command.
●Send message
This command enables the content of continuous data addresses starting with the
specified read start address to be read as a single message. The figure below
shows the structure of the application layer of the send message when the data is
read.
●Response message
If the message is correctly received, a response message corresponding to the
command content is returned.
The figure below shows the structure of the application layer of the response
message when the data is read.
●Maximum number of read data per message
Up to 10 words for both RAM and EEPROM areas
(2)(1) (3) (4)
Application layer
(1) Continuous read command
(2) Data delimiter
(3) Data address
(4) Number of read data
R0S,15 1W,1
(2)
0
• Normal termination (reading of single data item)
0
• Normal termination (reading of multiple data items)
0 0
• Abnormal termination
X X The abnormal termination code is entered at XX.
For details of codes, refer to;
4-4, Termination Code Table (on page 15).
(2)(1) (3)
(1) Termination code
(2) Data delimiter
(3) Data
(4) Data 2 to (n-1)
(5) Data n
,
(1) (2) (3) (4) (5)
,,,
(2) (2)
(1)

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Chapter 4. COMMUNICATION PROCEDURE
■Continuous data write command (WS command)
This command writes data to continuous addresses.
●Send message
The figure below shows the structure of the application layer of the send message
for the data write command.
●Response message
The figure below shows the structure of the application layer of the response
message for the data write command.
●Maximum number of write data per message
Up to 10 words for both RAM and EEPROM areas
(2)(1) (3) (4)
(1) Write command
(2) Data delimiter
(3) Start write data address
(4) Write data (first word)
(5) Write data (second word)
W0S,15 1W,1
(2)
,65
(2) (5)
0
• Normal termination
0
• Abnormal termination or warning
X X The abnormal termination code is entered at XX.
For details of codes, refer to;
4-4, Termination Code Table (on page 15).
(1)
(1)
(1) Termination code