orlee Posted February 7, 2009 Share Posted February 7, 2009 Using Modbus RTU with several devices (This is not a modbus specific topic, so I posted it here), When I power up the Azeotech PC with no connection to the modbus, I get a clear indication on the Value channel that there is no data. A RED X across the value. When in operation, all data is shown up and tables of channels fill up. However, when now a device drop and dont communicate, the LAST VALUE is displayed on the screen, no dtat is updated anymore, and nobody get noticed that we have wrong process value display. SURE, there is a timeout event, but operators dont relate this event with the data. Is there a way to get back that wondefull red X on the value when we have a comm issue? Link to comment Share on other sites More sharing options...
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