Omron CJ1W-SCU32 Operation Manual page 370

A Standard System Protocol
Receive Data Word Allocation (4th Operand of PMCR(260))
Receive data
storage words
Offset
+0 Number of receive data words
+1 Response code (4 digits hex)
+2 Run status
(2 digits hex)
+3 Error status, etc.
on
Echoback Test
(Sequence No. 620 (Hex 026C))
This sequence executes an echoback test at the specified node.
Send Data Word Allocation (3rd Operand of PMCR(260))
First word of
send data
Offset
+0 Number of send data words
+1 (Undefined)
+2 Number of bytes to send (4 digits hex)
+3 Test data
on
Receive Data Word Allocation (4th Operand of PMCR(260))
Receive data
storage words
Offset
+0 Number of receive data words
+1 Response code (4 digits hex)
+2 Test data
on
R-36
+0 Number of receive data words
Response code
+1
+2 Run status
Error status, etc.
+3
on
Contents (data format)
Number of send data words
+0
(Undefined)
+1
Node No.
Number of bytes to send
+2
+3 Test data
on
Contents (data format)
Node No.
(2 digits BCD)
Number of receive data words
+0
Response code
+1
+2 Test data
on
Contents (data format)
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Data
0003 to 00FA hex (3 to 250 decimal)
The CompoWay/F command response code is
stored in hexadecimal code.
The run status, error status, and other status infor-
mation is stored in hexadecimal code.
Data
0004 to 00FA Hex (4 to 250 decimal)
00 to 99
0001 to 007A Hex (1 to 122 decimal)
Set the number of data bytes for the test.
The test data is sent.
Data
0003 to 00FA hex (3 to 250 decimal)
The CompoWay/F command response code is
stored in hexadecimal code.
The test data is stored.