Checksum mismatch in read response

What does 00D1 mean?

The checksum received from the read response did not match the checksum of the data stream. This indicates data corruption or a transmission error during the block-transfer read operation.

• The checksum from the read response did not match the checksum of the data stream

Click steps to track your progress.

1. 1

   Inspect all communication cables (e.g., Ethernet/IP) connected to the Logix 5000 controller and relevant communication modules for physical damage, secure connections, and proper shielding.

2. 2

   Verify the network configuration (IP address, subnet mask, gateway, duplex settings) of the Logix 5000 communication module and any connected devices involved in the block-transfer read operation.

3. 3

   Check the status indicators (LEDs) on the Logix 5000 communication module for any error codes or abnormal operational states.

4. 4

   Measure the DC power supply voltage to the Logix 5000 chassis and communication modules, ensuring it is within specified operational limits.

5. 5

   Review the Logix 5000 controller's module diagnostics and I/O status in Studio 5000/RSLogix 5000 for specific error messages related to the block-transfer operation.