Modbus IO server causes cRIO CPU to go to 100%

I have 2 e / s Modbus server set up on my cRIO-9022 system. I use Modbus ethernet to communicate. Each server is intended for a different IP address for the Modbus device to what he's talking about. Modbus devices are configured with these IP addresses.

In normal operation, the CPU of the cRIO is about 10% use. However, I am trying to build in the correction of the mistakes of my VI. The question I have, is that when one of the modbus devices is dissconnected, the CPU usage gets locked at 100%. I guess that's because the IO server is trying to reestablish the connection and failing.

What would be the why of the handeling this case to prevent hanging on 100% CPU?

This is unexpected behavior that appears also when any other server I/O trying to settle the slave as well and I filed a request for Corrective Action with R & D to help resolve the issue in a future version of LabVIEW. A potential solution for those who have the DSC module is programmatically toggle the server I/O with the engine control features available in the palette of DSC.

Tags: NI Software

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