Acquiring Communication Error Information - Mitsubishi Electric MELSEC iQ-R Series User Manual

Acquiring communication error information

CPU module
T0
SET Y12
FROM
X02 X05
FROM
X02 X05
Message communication
completion
(1) Message communication command
(2) Slave information storage area: Stores the status of each slave node during the I/O communication.
(3) Message communication result
(4) Message communication data
(5) Attribute
 Set the command data in 'Message communication command' (Un\G272 to Un\G287) (110H to 11FH).
 When 'Message communication request' (Y12) is turned on, the communication error information of the corresponding slave node stored in the RJ71DN91 is
stored in 'Message communication data' (Un\G304 to Un\G423) (130H to 1A7H).
 When the read processing completes, the processing result is stored in 'Message communication result' (Un\G288 to Un\G303) (120H to 12FH) and
'Message communication completion' (X02) turns on.
 The communication error information of the slave node stored in 'Message communication data' (Un\G304 to Un\G423) (130H to 1A7H) is written to the CPU
module.
 When the read processing completes with an error, 'Message communication error signal' (X05) turns on. The content of 'Message communication result'
(Un\G288 to Un\G303) (120H to 12FH) is read, and the cause of the error is checked.
RJ71DN91
0110H
Ò
(1)
011FH
Ó
Message communication
request
(2)
0120H
Ö
(3)
012FH
0130H
(4)
01A7H
Ô
Message communication
completion
Õ
Slave node (MAC ID)
I/O
communication Class 1
Instance
(5)
(5)
Instance
Ó
(5)
(5)
(5)
Class
Instance
(5)
(5)
(5)
Instance
(5)
1.2 Master Function (Message Communication)
1
1 FUNCTIONS
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