The scenario
This circuit demonstrates a typical PLC-based temperature control loop with PID algorithm and SSR actuation.
What is in this drawing
Read the decisions behind it.
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.
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