PDO data is not present (Cn to Mn) (_ecPDO_DATA_MISSING_CN_TO_MN)

What does 10030 mean?

This fault indicates a loss of Process Data Object (PDO) communication between a remote axis (Client Node, CN) and the manager (Master Node, MN), specifically when at least two consecutive PDO packets are not received. For a NextMove e100, it means a drive has disappeared from the network. Unresolved, this can lead to loss of control over the remote axis and system instability.

• Intermittent or broken EtherCAT communication cable (e.g., CAT5e/CAT6) between the Master Node and Client Node.
• Incorrect EtherCAT network configuration (e.g., Master Node not mapping expected PDOs from Client Node).
• Client Node (drive) power cycling or temporary power loss causing it to drop off the network.
• Excessive electromagnetic interference (EMI) on the EtherCAT network cable disrupting data packets.
• Master Node's cycle time too short or Client Node's response time too slow, leading to missed PDOs.

Click steps to track your progress.

1. 1

   1. Inspect the EtherCAT cable between the Master Node and Client Node for physical damage, ensuring secure connections at both RJ45 ports.

2. 2

   2. Verify the EtherCAT cable shield is properly terminated at the master and slave devices to mitigate EMI.

3. 3

   3. Check the Master Node's configuration file for correct PDO mapping and update rates for the Client Node.

4. 4

   4. Monitor the network status LEDs on both the Master and Client Node (e.g., EtherCAT Link/Activity LEDs) for link integrity.

5. 5

   5. Review the Master Node's diagnostic log for specific communication errors related to the Client Node ID.

6. 6

   6. Temporarily reduce the EtherCAT Master's cycle time or increase the watchdog timeout period (if configurable) to test for timing issues.