Many of the power controllers support digital communications. Adding digital communications to thyristor units introduces further sophistication into process management. This enables digital accuracy in downloading setpoints, complete diagnostics of the load and is ideal for large, multi-zone installations.
The need for calibration of analog signals is eliminated and wiring is reduced since only a single digital link is needed to connect all zones to a central programmer. Digital communications also enables logging of process parameters, energy consumption, abnormal conditions, faults and alarms.