Parity Error

What does 1508.2 mean?

This status bit, when active (1), indicates that the parity check performed on the received data frame failed. This means the count of '1' bits in the data did not match the expected parity (even, odd, or none), signifying data corruption during transmission or a mismatch in parity settings between the devices.

• Mismatched parity settings (Even, Odd, or None) between the SCU and the Destination Device.
• Noise or electromagnetic interference on the communication line causing single-bit errors.
• Faulty serial port hardware on either the SCU or the Destination Device.
• Incorrect data transmission from the Destination Device due to internal issues.

Click steps to track your progress.

1. 1

   Verify that the parity setting (Even, Odd, or None) is identical on both the SCU and the Destination Device.

2. 2

   Inspect the serial communication cable for proper shielding and ensure it is routed away from high-voltage or high-current cables that generate noise.

3. 3

   Check the physical connections of the serial cable at the SCU and Destination Device terminals for secure and clean contacts.

4. 4

   If persistent, try temporarily disabling parity on both devices (if allowed and acceptable for application integrity) to test for communication establishment.