Abnormal Codes Returned During Communication Using Mc Protocol - Mitsubishi MELSEC-F User Manual

11 TROUBLESHOOTING

11.4.3 Abnormal codes returned during communication using MC protocol

Error code
Error
(hexadecimal)
10 PC number error
H
11 Mode error
H
18 Remote error
H
11 - 20
This section explains the abnormal codes (error codes) that are added to responses
when communicating using MC protocol (An abnormal code is added only when an
end code is "5B".)
For more details on the end codes (error codes) that are added to responses, see
Section 11.4.2.
For more details on the end codes (error codes) that are stored in the buffer memory of
the Ethernet module, see Section 11.4.4.
Response format
Subheader
Description of error
The PC number designated was not "FF".
Poor communication between the Ethernet module and the PLC
(1) After the Ethernet module receives a request successfully from an
external device, the Ethernet module and the PLC could not
communicate for some reason (noise, etc.).
Remote RUN/STOP not accessible.
The PLC base module status is CPU ERR or PROG ERR.
End code Abnormal code
When an abnormal code is stored, the end code is "5B
MELSEC-F
00
H
Corrective action
(1) Set the PC number to "FF"..
(1) Communicate again. If an error occurs again,
check noise, etc. and replace the Ethernet
module, then communicate again.
(1) Check whether or not the base module has a
CPU ERR (light on) or PROG ERR (flashing
light).
."
H
11 - 20