Plastic Actuated Ball Valves
AS-i Bus System
Series 92/94 Electric Actuator and Type-21 Ball Valve
A single pair of wires, which handles power and communications, is used to control the network by means of "chaining" the actuators with the PLC. Each actuator (or device) will then have its own unique address within the system and only that device with the proper address will respond to system commands.