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5 Message Communications
CompoNet Communications Unit User’s Manual (I582-E1)
5-2
Sendi
ng Me
ssages f
rom
CS/CJ-s
er
ies
5
5-
2-1 H
ow to Issue
Explicit
Messages by CMND
Instr
uct
ion
5-2
Sending Messages from CS/CJ-series
This section describes how to send/receive messages using the Master Unit (Model: CS1W-CRM21/
CJ1W-CRM21).
The Master Unit (Model: CS1W-CRM21/CJ1W-CRM21) uses the CMND instruction to issue Explicit
Messages.
To issue an Explicit Message, be sure to attach the FINS command (2802) at the beginning and issue it
to the Master Unit. Upon receipt of this command, the Master Unit transforms the command data to an
Explicit Message and transfer the message to the destination node. You cannot directly specify the des-
tination node using the CMND instruction when issuing an explicit message.
S: First Word Address of Command Storage Area
Set the first word address of the command data to transfer to the CompoNet Master Unit.
Previously set the data to transfer to consecutive word addresses as shown below.
*1 For the CompoNet Communications Unit on an inverter, set 0001 to 002A, 0064, 0065, 0094, or 00F7 hex.
5-2-1
How to Issue Explicit Messages by CMND Instruction
Word Address
Bit No.
15 to 8
7 to 0
S
Command code (Set the FINS Explicit Message command (2802).)
S + 1
Node address of the Slave/Master to which the Explicit Message is sent: 0 to 3F hex (0 to 63)
S + 2
Explicit Message service codes
Write: 10, Read: 0E
S + 3
Class ID code (Set the CompoNet Class code of the target function.)
*1
S + 4
Instance ID code (Set the CompoNet Instance ID code of the target function.)
S + 5
Attribute ID code (Set the CompoNet Attribute
ID code of the target function.)
Attachment data (in case of a write request
etc.)
…
Attachment data (in case of a write request etc.)
(↑) CMND (490)
S
D
C
Summary of Contents for 3G3AX-MX2-CRT-E
Page 94: ...3 Network Startup 3 36 CompoNet Communications Unit User s Manual I582 E1...
Page 118: ...4 Remote I O 4 24 CompoNet Communications Unit User s Manual I582 E1...
Page 134: ...5 Message Communications 5 16 CompoNet Communications Unit User s Manual I582 E1...
Page 167: ...I 1 I CompoNet Communications Unit User s Manual I582 E1 Index...
Page 171: ......