Mitsubishi MELSEC Q Series

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18.3 Actions for Lit/Flashing ERR. LED
18
TROUBLESHOOTING
(b) Error Code list (2000 to 2999)
Table18.4 Error Codes
Error code Error message Error information
LED status
CPU operation status
RUN ERR.
2000 UNIT VERIFY ERR.
Module No.
*1
Off/On Flashing/On
Stop/Continue
*2
2100 SP.UNIT LAY ERR.
Module No.
*1
Off Flashing Stop
2103 SP.UNIT LAY ERR.
Module No.
*1
Off Flashing Stop
* 1 The error information (module No.) stored in "Event information" on the <<Event history>> tab of the C Controller setting utility is
displayed as given below.
"Error information: XX - YYY"
XX (DEC.): Slot No. (0 to 63), CPU No. (1 to 4)
YYY (HEX.): Start I/O No. 16 (000 to 0FF, 3E0 to 3E3)