Omron CJ1W-DRM21 Operation Manual page 276

9 Troubleshooting and Maintenance
Event name Structure Error
Meaning The scan list is disabled and an error occurred that prevented making I/O allocations.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
The I/O words allocated to slave over-
lap.
The I/O words allocated to the slave
exceed the valid range.
The I/O size of the slave exceeds 200
bytes for outputs or 200 bytes for
inputs.
Attached None
information
Precautions/ None
Remarks
Event name Master I/O Refresh Error
Meaning The I/O memory in the destination CPU Unit for I/O refreshing could not be found when refreshing the master function
data in the CPU Unit.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
I/O words are allocated in an EM
bank that does not exist.
Attached None
information
Precautions/ None
Remarks
9-46
Source details
Minor fault Recovery
Continues. Operation
Data type
---
Correction
Correct the node addresses of the
slaves so that I/O area words do not
overlap.
Correct the node addresses of the
slaves so that the I/O area words do
not exceed the valid range.
Use a slave with 200 output bytes or
less and 200 input bytes or less.
Source details
Minor fault Recovery
Continues. Operation
Data type
---
Correction
Correct the I/O allocations so that
only I/O words that exist in the I/O
memory of a CPU Unit are allocated.
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Event code 34BE0000 hex
CJ-series Unit Detection
timing
Error reset Log category
The Unit will continue processing the connection again
with the slave that has the error, and remote I/O will also
continue.
Name
---
Prevention
Set the node addresses of the slaves
so that I/O area words do not overlap.
Set the node addresses of the slaves
so that the I/O area words do not
exceed the valid range. Or, use the
slaves with user allocations.
Use a slave with 200 output bytes or
less and 200 input bytes or less.
Event code 34BF 0000 hex
CJ-series Unit Detection
timing
Error reset Log category
Remote I/O communications stop.
Name
---
Prevention
Allocate only I/O words that exist in
the I/O memory of a CPU Unit.
When trying to
establish an ID
connection
System
At power ON or
Controller reset
System