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Troubleshooting with the DeviceNet Unit Indicators Section 9-1
DeviceNet Unit Response
Continues processing but data exchange with the CPU Unit is stopped.
The routing table is treated as missing.
Records the error in the error log.
Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)
Bit 14 (Error Flag) and bit 03 (the Structure Error Flag) will be ON.
CIO Area Flags Allocated to DeviceNet Unit
Bits 00 and 12 of n+10 (the Unit Error Flag and Routing Table Error Flag) will
be ON.
Correction
Register the routing table in the CPU Unit again and restart the CPU Unit.
Replace the CPU Unit if the error recurs.
Routing Table Logic Error
Likely Cause
There is an error in the contents of the routing table.
DeviceNet Unit Response
Records the error in the error log.
The routing table is treated as missing and processing continues.
Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)
Bit 14 (Error Flag) and bit 03 (the Structure Error Flag) will be ON.
CIO Area Flags Allocated to DeviceNet Unit
Bits 00 and 12 of n+10 (the Unit Error Flag and Routing Table Error Flag) will
be ON.
Correction
Refer to 1-6-3 Creating Routing Tables. Set the routing table in the CPU Unit
correctly and restart the DeviceNet Units.
I/O Refresh Error
Likely Cause
The I/O areas set in the master scan list or slave scan list do not exist in the
CPU Unit. This error can occur when the Unit is mounted to a different CPU
Unit with a different number of EM banks or EM that has been converted to
file memory.
Note This error may occur during remote I/O communications, too.
DeviceNet Unit Response
Records the error in the error log.
Stops remote I/O communications for the function (master or slave) using the
non-existent area.
There is a possibility that this error will occur again. If it does occur again,
restart remote I/O communications to return the system to normal operation.
Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)
Bit 14 (Error Flag) and bit 03 (the Structure Error Flag) will be ON.
7-segment MS indicator NS indicator Error log (Hex)
HC Red (flashing) --- 021A
7-segment MS indicator NS indicator Error log (Hex)
Hd Red (flashing) --- 0347