1000-2024
Description Immediate Attention Required: Fieldbus I/O Module [ ] Not Detected on IoNet [ ]
Possible Cause Note: If this diagnostic is active, the module needs to be replaced immediately. If it is simplex, the
devices under this PFFA have lost communication. If it is redundant and not replaced, and a controller on the remaining
module's IONet goes down, then control is lost for all devices under the PFFA modules.
• PFFA module did not complete Start
• PFFA module configuration files missing
• PFFA module restarted
• PFFA module configured for Hot Backup, but only one network is connected
• Serial connection between PFFA modules is broken
• Network issue
Solution
• If the Control/Status communication is working correctly, any additional diagnostics should indicate the cause of the
problem.
• Build and download parameters to the PFFA module and controller.
• Verify Serial cable is attached correctly.
• Verify that the Ethernet cables and network switch are operating correctly.
• Manually restart the PFFA module.
2400
Description EtherCAT scan bus error
Possible Cause
• EtherCAT device(s) is unplugged or without power
• An Ethernet cable is disconnected or damaged
• Redundancy mode is not set correctly
• Redundant Ring is broken
Solution
• Ensure all devices are connected and powered.
• Verify all Ethernet LINK lights are lit.
• Verify redundant configuration is correct.
2401
Description EtherCAT All Ethernet links disconnected
Possible Cause
• Ethernet LINK between Mark VIe controller and EtherCAT network is lost
• EtherCAT device(s) are unplugged or without power
Solution
• Reconnect Ethernet cables.
• Verify all Ethernet LINK lights are lit.
• Verify all EtherCAT devices are powered.
Controllers GEH-6855_Vol_II System Guide 81
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