Industrial control & monitoring — the PLCs and supervisory systems that automate industrial processes.
Trace a 24 V PNP field switch through input qualification, a PLC read/execute/write scan cycle and an output module to a solenoid-driven cylinder.
Evaluate start permits on a guarded mixer, latch a first-out running trip, and practice restore-reset-restart sequencing.
Trace a two-wire pressure transmitter through cable and shunt resistance, an ADC and PLC scaling, and diagnose compliance limits and span mismatches.
Tune a PI level loop around a transparent tank with a modulating inlet valve, hydrostatic transmitter and gravity outlet.
Heat a process vessel and follow a qualified high alarm, a separately qualified high-high trip, and acknowledge/reset/rearm sequencing.
Ramp a slew-limited frequency command and watch synchronous speed, slip and the base-frequency torque envelope respond, with a drive-fault coast-down.