PRO-Logic expansion modules are designed to increase the available number of input and output signals of the PRO-Logic master modules. They are connected to the local bus of the F100 and F200 master modules. Supply voltage: 24 V DC. PRO-Logic expansion modules also include PRO-Logic communication and strain gauge modules. PRO-Logic devices are widely used in the following areas: Power supply and energy distribution (ATS), heating, ventilation and air conditioning, water supply, water treatment and sewage, lighting, conveyors, filling and packaging machines, automatic dosing systems, machine tools, furnaces, boilers, and other technological and production processes.