what type of instrumentation is considered Digital Input, Digital Output, Analog In..

[Baja1]

Within a Chemical/Process Plant what type of instrumentation is considered Digital Input, Digital Output, Analog Input or Analog Output? Where would this type of explanation be online?

 

[Mickey]

See links

http://www.canadu.com/lp/pdf/itv-m2.pdf

http://en.wikipedia.org/wiki/Programmable_logic_controller

 

[widelto]

try this book:
http://www.cfdvs.iitb.ac.in/download/Docs/verification/course/plcbook.pdf

 

[Baja1]

Mickey, thanks for the link and info. I was also trying to find an explanation and list process controls instrumentation and whether for example a flow transmitter is a DI, DO, AI or AO? As well for pressure transmitters, control valves, etc.

 

[Baja1]

Widel, I think that has it.

 

[gbeaker]

Input = in
output = out

digital = on or off only
analog = everything in between