Yaskawa MP3200 Troubleshooting Manual - Manual (Page 101)

5.2 Troubleshooting Message Communications
Message Communications Errors
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 Checking the Status (PARAM01)
If the value of the processing result (PARAM00) is 88 hex, indicating that a communications section
error occurred, check the status in PARAM01 to isolate the error.
 REQUEST
This bit shows the request processing status of the message function.
 RESULT (Processing Result)
These bits show the result of executing the message function.
*1. When this error occurs, detailed information is given in (  ) PARAMETER.
*2. This error occurs if the message function is executed while the 218IFD is not ready to receive message send or
receive requests.
 COMMAND
These bits show the processing command of the message function. The processing that was executed can be
determined from this information.
Bit Status Meaning
0 Processing is being requested.
1 Processing request was ended.
Code Abbreviation Meaning
0 CONN_NG
The message send failed or connection ended with an error in Ethernet com-
munications.
1 SEND_OK The message was sent normally.
2 REC_OK The message was received normally.
3 ABORT_OK The request to abort execution was completed.
4 FMT_NG A parameter formatting error occurred. *1
5 SEQ_NG A command sequence error occurred. *2
6 RESET_NG A reset occurred. *2
7 REC_NG A data reception error (error detected in the lower-layer program) occurred.
Code Abbreviation Meaning
1 U_SEND General-purpose message transmission (for no-protocol communications)
2 U_REC General-purpose message reception (for no-protocol communications)
3 ABORT Forced abort
8 M_SEND
MEMOBUS command transmission: Completed when the response is
received.
9 M_REC
MEMOBUS command reception: Sends a response when the MEMOBUS
command is received.
C MR_SEND MEMOBUS response transmission
F E D C B A 9 8 7 6 5 4 3 2 1 0
Bits 0 to 7: (f) PARAMETER
Bits 8 to B: (e) COMMAND
Bits C to E: (d) RESULT
Bit F: (c) REQUEST