상황
This circuit demonstrates a typical PLC-based temperature control loop with PID algorithm and SSR actuation.
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01
Used NMOS transistor to model SSR switching for simplicity
02
Analog temperature sensor modeled as a low-voltage DC source
03
PLC represented as a multi-terminal IC block with analog input and digital output
When designing or documenting industrial PLC control panels for heating processes, particularly with PID regulation and SSR-driven resistive loads.