Mitsubishi Electric MELSEC-Q Series User Manual page 214

(3) Operation error
For the following cases, an operation error occurs; Error flag (SM0) turns on and the error code is stored in SD0.
Error code
2112
4002
4003
4004
4100
4101
212
Condition that an operation error occurs
When the module specified by Un is not an intelligent function module
When attempt to execute an unsupported instruction
When the number of devices for the instruction is incorrect
When the device that cannot be used for the instruction is specified
When the data that cannot be used for the instruction is contained
When the number of data used for the instruction is set beyond the allowable range.
Or when the storage data or constants of the device specified with the instruction exceeds the allowable
range (including a dummy device).
The number of points required for each data is described below.
• Control data: 8 points
• Slave station setting data: 64 points
• Reserved station specification data: 4 points
• Error invalid station specification data: 4 points
• Communication and automatic update buffer assignment data: 78 points
If D12284 is set as the start device number of the slave station setting data (S2) on the condition
Ex.
that D0 to D12287 is set to the device in the CPU module, the slave station setting data (S2)
becomes D12284 to D12347 (64 points) and an error occurs due to values out of the range.