PROFIBUS: Parameter or configuration error

What does A00700 mean?

This alarm indicates an issue with the PROFIBUS communication, specifically that an incorrect parameter or configuration telegram was received. This prevents the drive from being properly controlled or configured via the bus, leading to communication failure with the master.

• The PROFIBUS GSD file used in the PLC/controller's hardware configuration does not match the actual GSD revision or capabilities of the drive.
• Inconsistent parameter assignments between the PROFIBUS master (PLC) and the drive (slave), such as incorrect Process Data Object (PDO) mapping.
• Incorrect PROFIBUS address (e.g., P2020) set on the drive, or a duplicate address on the PROFIBUS network.
• Faulty PROFIBUS cable or connector, leading to corrupt telegrams being received by the drive.
• Baud rate mismatch (e.g., P2012) between the PROFIBUS master and the drive, causing data interpretation errors.

Click steps to track your progress.

1. 1

   1. Verify the drive's PROFIBUS address (P2020) and baud rate (P2012) match the configuration in the PLC/controller's hardware configuration.

2. 2

   2. Ensure the correct GSD file for the specific drive model and firmware version is imported and used in the PLC/controller project.

3. 3

   3. Compare the PROFIBUS telegram configuration (e.g., P2051 - send PZD, P2053 - receive PZD) in the drive with the PLC's mapping for consistency.

4. 4

   4. Check the PROFIBUS cable integrity, termination resistors (e.g., at X101 terminals), and connector pins for damage or loose connections.

5. 5

   5. Perform a cold restart of both the drive and the PROFIBUS master (PLC) to re-initialize communication.

6. 6

   6. Use a PROFIBUS diagnostic tool to analyze the bus traffic and identify any corrupted telegrams or communication errors.