Analog Output Devices
Analog output devices connected to a PLC module control actuators and other devices using continuous signals, including:
- control valves,
- variable speed drives (VSDs) for motors,
- pneumatic positioners,
- electric heaters, and
- variable voltage or current suppliers.
The PLC module sends either a voltage signal (e.g., 0-10V, -10 to +10V) or a current signal (e.g., 4-20mA) to these devices to manage processes by precisely adjusting power or flow.
