Issue
Modbus device is offline in Vista.
Product Line
TAC Vista
Environment
- TAC Vista
- Xenta 511
- Xenta 913
- Xenta 700
Cause
The Modbus device online check has to read at least one variable for the device to come online in Vista. If you only write values to the Modbus device, it will appear offline.
Resolution
As a workaround, you may create a dummy variable that you read from in Xbuilder
