Single Ended vs Differential

[bodoo23]

I actually don't understand which device determines whether the wiring will be single ended vs differential.
being single ended or differential is a property of transmitter or input module (or both) ?
Briefly, I'd like to ask how can I decide which wiring method to use ?

 

[gclshortt]

http://www.plctalk.net/qanda/showthread.php?t=60109

http://www.plctalk.net/qanda/showthread.php?t=80631

The above threads may help you out.
Regards,

 

[bodoo23]

http://www.plctalk.net/qanda/showthread.php?t=60109

http://www.plctalk.net/qanda/showthread.php?t=80631

The above threads may help you out.
Regards,

Thanks for the links, they are very useful links. But i couldn't find the answer of question above.

 

[mylespetro]

These pictures might help. As far as which wiring methods to use, it seems to depend on if your signals will be in an electrically noisy area.


Edit: These are for Allen-Bradley PLC cards, but the concept should translate.

 

[Ken Moore]

As mentioned, differential gives you better noise reduction. With single ended, all the instruments share a common. One noisy signal can make all signals noisy. The single ended/differential is determined by how the input module is configured, and how it is wired. A lot of budget mined folks always use single ended. If possible I steer my clients, to differential. Less potential for issues.