Today is...
Monday, July 22, 2019
Welcome to Control.com, the global online
community of automation professionals.
Featured Video...
Featured Video
A tutorial introduction to programming using the QuickBuilder Programming Environment.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
System Powered and Field Powered Devices in Mark V
How are the contact inputs in Mark V powered?

Does all the contact inputs in Mark V are powered by control system itself or they are externally powered devices also?

>Does all the contact inputs in Mark V are powered by
>control system itself or they are externally powered devices
>also?

In general, the Mark V provides the power for all the discrete (contact) inputs to the Mark V. But, if you can be more specific there are exceptions to most rules in any GE control system, even the Mark V.