asking for an input

[yacine93]

Hi friends 

While I'm analyzing a ladder program of an industrial machine I found an input with this number 200.00 or 254.06 but I didn't understand what does it mean or which input it represent , thank you for answer me . 

[Mendon Systems]

Those are probably not inputs. Any CIO words that are not assigned to I/O modules can be used for internal storage bits. I suspect that somewhere else in the program you will find rungs with logic and a coil for those bits.

[Michael Walsh]

If there are no coils, then they could come from somewhere else, such as EtherNet/IP connections, ControllerLink communications or many other communication options including from an HMI (touchscreen).

[yacine93]

17 hours ago, Mendon Systems said:

Those are probably not inputs. Any CIO words that are not assigned to I/O modules can be used for internal storage bits. I suspect that somewhere else in the program you will find rungs with logic and a coil for those bits.

thanks friend for reply

 

[yacine93]

yes micheal i think you are right because there is an HMI thank you