"The PLC is fixed hardware, you can't simply patch that."
Oh yes you can patch it - that's how I got the 20 year old laminator working where I work. If the hardware is still good you can absolutely change firmware if you have the PLC control software (like RockWell ControlFlash) or know how to manipulate the ladder logic directly.
Oh yes you can patch it - that's how I got the 20 year old laminator working where I work. If the hardware is still good you can absolutely change firmware if you have the PLC control software (like RockWell ControlFlash) or know how to manipulate the ladder logic directly.