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SEPAM - is event filtering supported for Modbus events on Sepam Series 20, 40, 60, or 80?

Some of the modern digital protection relays on the market include a feature known as event filtering.

With this feature, it is possible to "mask out" or to stop certain types of events from being logged or reported by the relay.  For example, you could configure the relay to report all Protection Trip events, and all events involving status changes of the Circuit Breaker position.  However, you might want to stop events such as transitions on a specific Logic Input from being reported, in order to avoid filling up the onboard Event Buffers of the relay.

For Sepam 20, 40, 60, and 80 relays, this event filtering feature is not currently supported.  All events that are described in the Modbus documentation for each Sepam platform will be logged and saved to the event buffers of the relay.

On a Sepam 80, even if you assign a particular Logic Input to "Other Use," and remove all the Alarm Messages in the Matrix, an event will still be logged each time there is a state change with the input.

The only way to disable events entirely for a Logic Input would be to disable that input completely.

So, if you are trying to minimize the number of events logged by the relay, you should be aware that all inputs that are enabled will report events to the relay's onboard event buffers.


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