The 5 PLC programming languages (IEC 61131-3) | Real example in PLC S7-1200
This video explains the five PLC programming languages defined in the IEC 61131-3 standard.
The same motor start and stop system is programmed using:
Ladder Diagram (LD)
Function Block Diagram (FBD)
Structured Text (ST)
Instruction List (IL)
Sequential Function Chart (SFC)
📌 The example is tested on a Siemens S7-1200 PLC using TIA Portal.
📌 A simulation is also performed in Studio 5000.
This video is geared towards students, technicians, and engineers who want to understand which PLC language to use and when.
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