The GE FANUC A20B-8101-0421 is a printed circuit board (PCB).
- Sensors:These devices collect data from the physical process, such as temperature, pressure, flow rate, and level.
- Controllers:These are programmable devices that receive data from the sensors and send control signals to actuators.
- Actuators:These devices take physical action based on the signals they receive from the controllers, such as opening or closing valves, starting or stopping pumps, or adjusting heater settings.
- Operator stations:These are the human-machine interfaces (HMI) that allow operators to monitor the process, make changes to setpoints, and troubleshoot problems.
- Communication network:This network connects all of the devices in the DCS system together, allowing them to share data and control signals.
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