PLC v/s DDC

A

Thread Starter

Anonymous

What is the opinion of the members on the use of PLC and DDC in control applications? Where is the cut off for use of PLC or DDC in control applications? What are the advantages of one over the other?
 
M

Michael Batchelor

In the past I have only seen DDC equipment used in building environmental controls like HVAC systems or water controls. But with Device-NET beginning to show up all over the place, they're starting to
look very similar.

I have never delved into the differences, but just plugging in a CAT5 cable plus getting back a boatload of status information seems like a step forward to me.

I don't know what the actual differences between DDC field devices and Device-NET field devices are. Maybe a lot. Maybe one is a descendant of the other. I can't say.

Michael
 
Top