Device Read Command Error (Encapsulation)

What does RHxx129 mean?

An error response was received by the system when attempting a device read command from the external device. This indicates a problem retrieving data from the external device, potentially affecting system monitoring or operation. The specific nature of the error may be detailed in the Encapsulation Error Code field.

Click steps to track your progress.

1. 1

   Inspect EtherNet/IP network cable connections at the Omron driver and the external device for physical integrity and secure seating.

2. 2

   Verify network link and activity status indicators on both the Omron EtherNet/IP unit and the external device.

3. 3

   Verify the configured IP address, subnet mask, and gateway settings for both the Omron EtherNet/IP driver and the external device for correctness.

4. 4

   Access the Omron CS/CJ Series PLC's EtherNet/IP driver diagnostic buffer or status registers to retrieve the specific Encapsulation Error Code.

5. 5

   Check the external device's own diagnostic logs or status screen for any internal errors, communication faults, or configuration issues preventing it from responding to read requests.