Further flexibility is provided by a series of options that allow additional modules to be plugged into dedicated slots for extra I/O or digital communications. Connectivity with PLC, SCADA, or DCS systems is straightforward with support for common industrial protocols such as Profibus, DeviceNet, Modbus TCP/IP and Modbus-RTU. For versatility, the single driver module supports up to four power modules, enabling support for seven different load configurations. The power modules come in four sizes: 100A, 160A, 250A and 400A. Predictive Load Management provides benefits including power demand optimization, no phase angle disturbance and reduction of total harmonic distortion, energy savings and no costly power spikes.