SIMATIC S7-1200, Analog input, SM 1238 Energy Meter 480 V AC, power measurement module for data acquisition in 1- and 3-phase supply systems (TN, TT) up to 480 V AC Current range: 1 A, 5A acquisition of voltage, current, phase angles, power, energy values, frequencies Channel diagnostics SIMATIC S7-1200 Basic Controller - Flexible thanks to wide variety of communication options The SM 1238 Energy Meter 480VAC expansion module is designed for recording energy data in an S7-1200 station. It registers more than 200 different electrical and other measured values. These are processed directly in the CPU and can be visualized using a Basic Panel. This enables users to acquire transparency about the energy requirements of individual components of their production system.