Omron CJ1W-DRM21, CS1W-DRM21 operation manual Set the slaves’ node addresses again

Troubleshooting with the DeviceNet Unit Indicators Section 9-1

Structure Error:

I/O Area Range Exceeded

Structure Error: Unsupported Slave

Verification Error:

Non-existent Slave

Correction

Set the slaves’ node addresses again.

7-segment	MS indicator	NS indicator	Error log (Hex)
d1	---	Red (flashing)	0343

Likely Cause

The slave’s I/O area isn’t within the allowed range. (Occurs with the scan list disabled.)

DeviceNet Unit Response

Records the error in the error log. The master will periodically attempt to reconnect with the slave with the structure error.

Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)

Bit 14 (the Error Flag) and bit 04 (the Structure Error Flag) will be ON.

CIO Area Flags Allocated to DeviceNet Unit

Bit 01 of n+12 (the Structure Error Flag) and bits 00 and 01 of n+10 (the Unit Error Flag and Master Function Error Flag) will be ON.

Correction

Set the slaves’ node addresses again or use user-set allocations.

7-segment	MS indicator	NS indicator	Error log (Hex)
d2	---	Red (flashing)	0343

Likely Cause

The size of the slave’s input and/or output area exceeded 200 bytes. (Occurs with the scan list disabled.)

DeviceNet Unit Response

Records the error in the error log.

The master will periodically attempt to reconnect with the slave with the struc- ture error.

Flags Allocated for C200H DeviceNet Master Unit (CIO n+24)

Bit 14 (Error Flag) and bit 04 (the Structure Error Flag) will be ON.

CIO Area Flags Allocated to DeviceNet Unit

Bit 01 of n+12 (Structure Error Flag) and bits 00 and 01 of n+10 (Unit Error Flag and Master Function Error Flag) will be ON.

Correction

Use slaves with input and output areas of 200 bytes max.

7-segment	MS indicator	NS indicator	Error log (Hex)
d5	---	Red (flashing)	0344

Likely Cause

Aslave registered in the scan list doesn’t exist or the local node’s (master’s) node address is registered in the scan list. (Occurs with the scan list enabled.)

DeviceNet Unit Response

Records the error in the error log.

•If a slave is involved, the master will periodically attempt to reconnect.

•If the master is involved, it will not send an OPEN frame to itself.

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