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

7-segment

MS indicator

 

NS indicator

Error log (Hex)

 

 

 

 

 

HC

Red (flashing)

---

 

021A

 

 

 

 

 

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

7-segment

MS indicator

 

NS indicator

Error log (Hex)

 

 

 

 

 

Hd

Red (flashing)

---

 

0347

 

 

 

 

 

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.

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Omron CJ1W-DRM21 Routing Table Logic Error, There is an error in the contents of the routing table, Refresh Error