Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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Mitsubishi Computer Link Master (A-compatible 1C Frame, Model 1) Appendix E
• Sending Commands Common to ACPU
The values in parentheses are hexadecimal.
Send/Receive User-specified Computer Link Commands, with ASCII
Conversion
(Sequence No. 800 (Hex 0320)) Command Code: User-specified
This sequence converts the text data of a user-specified Computer Link command into ASCII and sends to the
Mitsubishi Computer Link Module with the specified station number (and the PLC number that follows). The
response data is converted into hexadecimal and stored in the CS/CJ-series CPU Unit starting from the speci-
fied word.
Send Data Word Allocation (3rd Operand of PMCR(260))
Receive Data Word Allocation (4th Operand of PMCR(260))
Sequence
No.
Communications
sequence name
Computer Link
command
Function
818 (0332) Loopback test TT (Loopback
test) Executes a loopback test at the Mitsubishi Computer Link Module
with the specified station number (and the PLC number that fol-
lows). (E.g, if the data starting from the specified word + 3 is sent
from the host, the Computer Link Module will return the data
unchanged to the host.)
Offset Contents (data format) Data
+0 Number of send data words
(4 digits hex) 0004 to 00FA hex (4 to 250 decimal)
+1 Station No.
(2 digits hex) PLC No.
(2 digits hex) Station No.: 00 to FF hex
PLC No.: 00 to FF hex
+2 Command (4 digits hex) Specify the service command code to
be used in ASCII.
+3 Number of send bytes
(4 digits hex) 0000 to 007A hex (0 to 122 decimal)
Specify the number of text data bytes
for the communications line (i.e., twice
the number of text bytes in S+4
onwards)
+4 Text data Set the text data for the command. The
specified hexadecimal data will be con-
verted into ASCII and sent.
Number of send bytes
Number of send data words +0
+1
+2
PLC No.
+3
+4
Station No.
Command
Text data
First word of
send data
Offset Contents (data format) Data
+0 Number of receive data bytes 0002 to 00FA hex (2 to 250 decimal)
+1 Station No.
(2 digits hex) PLC No.
(2 digits hex) Station No: 00 to FF hex
PLC No.: 00 to FF hex
+2 Receive data (4 digits hex) Any receive data is converted into
hexadecimal and stored.
Receive data
storage words
Number of receive data words +0
+1 PLC No.
+2
Station No.
Receive data