Communication with the bus coupler takes place via an asynchronous serial RS485 connection.
A short-circuit proof voltage is provided to supply the potentiometric encoders. Each input has adjustable MIN and MAX values at which an alarm message is sent to the process control system. The module receives the power supply via the T-Bus connector from the bus coupler or from a power module.
In the event of an error, the modules operate with previously defined error values to ensure reliable process control.