02-05-2008 09:42 AM
02-05-2008 02:53 PM
MeCoOp,
What you have is a loop powered sensor. Look at figure 5 of the cFP-AI-111 manual http://www.ni.com/pdf/manuals/373281b.pdf. For each sensor connect Vsup from a given channel to the + of the sensor. Connect Iin of the same channel to the - of the sensor. Use twisted pair cable to help minimize noise.
You will need an external 24V supply connected to the C and V terminals of the AI-111 to power the module and all the loops.
02-05-2008 04:13 PM
02-06-2008 08:00 AM