Access Barrier PLC Programming Needed
Budget: £18 – £36 GBP
I have a straightforward job: write the PLC logic for a simple access control system that operates one automatic barrier. The barrier must open and close safely based solely on signals coming from detectors (no keypads, cards, or biometrics are involved).
Here is what I need from you:
• A fully commented PLC program that takes the detector inputs, drives the barrier motor/relay outputs, and handles basic timing, safety interlocks, and fault recovery.
• An I/O list that shows every digital / analog point you expect, so my electrician can wire it correctly.
• A short explanation of the operating sequence so our maintenance staff can follow the logic without diving into the code.
If you can simulate the sequence in TIA Portal, RSLogix, Codesys, or any equivalent environment you already use, that’s a plus—just let me know which platform you prefer and I’ll confirm compatibility with our hardware before we start.
I can supply the exact detector and motor specs once we begin; otherwise the sequence is intentionally simple, so focus on clear, reliable logic rather than over-engineering. Deliver the project file and a PDF printout of the ladder (or structured text) when you’re done, and I’ll handle on-site commissioning.
Here is what I need from you:
• A fully commented PLC program that takes the detector inputs, drives the barrier motor/relay outputs, and handles basic timing, safety interlocks, and fault recovery.
• An I/O list that shows every digital / analog point you expect, so my electrician can wire it correctly.
• A short explanation of the operating sequence so our maintenance staff can follow the logic without diving into the code.
If you can simulate the sequence in TIA Portal, RSLogix, Codesys, or any equivalent environment you already use, that’s a plus—just let me know which platform you prefer and I’ll confirm compatibility with our hardware before we start.
I can supply the exact detector and motor specs once we begin; otherwise the sequence is intentionally simple, so focus on clear, reliable logic rather than over-engineering. Deliver the project file and a PDF printout of the ladder (or structured text) when you’re done, and I’ll handle on-site commissioning.