Would Auto-demote be useful in this case?

[AS_9720957]

Hi,

I have set up a number of temperature/humidity hardware controllers to a KEPserverEX.

These hardware controllers will have to be powered off from time to time when the hardware is not being used.

The client is a log software that automatically generates monthly data log files and requires no
administration.

When the hardware is shut down it will generate a fault in the KEPserverEX event log and the client will time out on these OPC channels. Client log interval is 10 minutes with a scan of 2 cycles/s and channel.

If I use the Auto-demote in KEPserverEX will the client receive anything else but a non response and time out on each request made to a non powered controller?

I am open for any suggestions but particularly interested in the Auto-demote function.

Would the Auto-demote add anything positive to my timeouts or is there a better way to handle this state?

I am using KEPserverEX v6.9 and protocol Modbus RTU serial using Ethernet encapsulation.

[pshashipreetham · Accepted solution]

Yes, Auto-Demote would be useful in this case.

When enabled, Auto-Demote allows KEPServerEX to stop polling devices that are offline or not responding after a configurable number of retries. This prevents constant retries and reduces unnecessary load and error logs.

In your setup, when a temperature/humidity controller is powered off, Auto-Demote will:

• Automatically stop polling the device after failures

• Prevent repeated timeouts and reduce log clutter

• Resume communication when the device is powered back on

The client will still see bad quality or no data for the duration the device is down, but the communication channel will be more stable overall.

Set Auto-Demote on the device or channel level and adjust retry and recovery timing based on your logging cycle.

Thanks,

[AS_9720957]

Thank you Shashi,

I have not had the time to try it yet, but will do so shortly.