Mitsubishi MELSEC L Series User Manual page 246

Error code
Error item
(Hexadecimal)
4C00
H
Multiple CPU-
4C08
H
related error
4C09
H
*1 To check logging status, use LCPU Logging Configuration Tool. For operation, refer to the following.
MELSEC-L CPU Module User's Manual (Data Logging Function)
244
Error details
The specified device is unavailable for the
motion CPU or outside the device range.
There are a total of 33 or more DDWR and
DDRD requests.
The specification of the requested CPU
module No. is illegal.
Corrective action
Check the request data contents.
Execute again after reducing the number of DDWR and
DDRD requests to be executed simultaneously.
Check the request data contents.