EXPERIMENT 012

PLC FUNDAMENTALS

Industrial Automation

ARCHIVED

OVERVIEW

Basic ladder logic programming and I/O mapping using a simulated PLC environment for motor start/stop control circuits.

RESULT

Successfully simulated self-holding circuits and interlocks. Realized the conceptual similarity between PLC scan cycles and standard microcontroller main loops.

STACK

OpenPLCLadder LogicModbus TCP

EVIDENCE

[ LADDER LOGIC SCHEMATIC ]

[ SERIAL LOG ]

[11:05:22.000]> OpenPLC Runtime starting...

[11:05:22.450]> Compiling program logic.st

[11:05:24.100]> Optimization complete. 0 Errors.

[11:05:24.200]> Modbus TCP server listening on :502

[11:06:10.050]> Modbus Client connected (127.0.0.1)

[11:06:12.000]> COIL 0x01 written: TRUE (Motor RUN)

[11:06:12.012]>