Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 370 / 478

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