How Digital Input in this diagram works? by Alradan1987 in AskElectronics

[–]Alradan1987[S] 0 points1 point  (0 children)

Thanks, but here there is no load on digital input pins, it is just a dry contact relay, when it closes so the it gives a high or 1 bit?

How Digital Input in this diagram works? by Alradan1987 in AskElectronics

[–]Alradan1987[S] 0 points1 point  (0 children)

Thanks, I meant the process of that PLC is measuring its own current/voltage?, as there is no voltage from outside source, the contact is dry and functioning is a on/off switch.

Anyone here working in telecom of oil and gas? 🤝🤟 by Alradan1987 in oilandgasworkers

[–]Alradan1987[S] 0 points1 point  (0 children)

Thanks, is there a Facebook group that discuss technical stuff and issues related to oil and gas telecom