Appendix A System Functions
A.2.3 Parameter Details
A-16
2. COMMAND
3. RESULT
4. PARAMETER
PARAMETER indicates one of the error codes shown in Table A. 2. when RESULT is
set to 4 (FMT_NG). Otherwise, it indicates the address of the remote station.
5. REQUEST
1 = Request
0 = Acceptance completion report
Code Symbol Meaning
1 U_SEND General-purpose message sent.
2 U_REC General-purpose message received.
3 ABORT Aborted.
8 M_SEND MEMOBUS command sent: Processing completed upon
receiving response.
9 M_REC MEMOBUS command received: Followed by the sending
response.
C MR_SEND MEMOBUS response sent.
Code Symbol Meaning
1 SEND_OK Sending has been completed normally.
2 REC_OK Receiving has been completed normally.
3 ABORT_OK Abort completed.
4 FMT_NG Parameter format error
5 SEQ_NG, or INIT_NG Command sequence error:
The token has not been received yet.
The communications system has not been connected.
6 RESET_NG, or
O_RING_NG
Reset state:
Out-of-ring. The token was not be received even after
the token monitor time had elapsed.
7 REC_NG Data receive error (error detected by a lower-level pro-
gram)
Table A.2 Error Codes
Code Error
00 No errors.
01 Station address outside the allowable range
02 MEMOBUS response receiving time error
03 Retry count setting error
04 Cyclic area setting error
05 Message signal CPU number error
06 Message signal register number error
07 Message signal word count error
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