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MELSEC-Q
4 WHEN THE QCPU ACCESSES THE OTHER STATION PLC USING THE
DATA LINK INSTRUCTION
4.9 Error Codes for Data Link Instructions
When the execution results of the data link instruction shown in this chapter end error,
the returned error code is the same error code as is shown in the following manual.
Q corresponding Ethernet Interface module
Section 11.3.3 of User's Manual (Basic)
The error code for data link instruction is stored in the Ethernet module error log area
and the following area:
1) SEND, RECV (RECVS), READ (SREAD),
WRITE (SWRITE), REQ : Control data completion status
((S1) + 1)
2) ZNRD : Buffer memory (Address 207)
3) ZNWR : Buffer memory (Address 209)
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