Description
The system has not received any feedback from the DeviceNet I/O device and the monitoring timer has expired.
Consequences
The DeviceNet network is not operational and communication will not be possible on the DeviceNet network. The system enters the "System Failure" state. For more information on this troubleshooting, see the DeviceNet Application Manual.
Possible causes
The I/O load on the DeviceNet network might be too high, for example, if a RAPID program attempts to set the I/O signal rate beyond the available bandwidth of the DeviceNet network.
Recommended actions
Reduce the I/O load on the DeviceNet network.