I/O Wiring—General
Input or output cables should not be run through the same multi-core cable or share the same wire.
Allow for voltage drop and noise interference with input lines used over an extended distance. Use wire
that is properly sized for the load.
Analog Inputs
Shields should be connected at the signal source.
2 wire connection
RTD
RTD
4 wire connection
* RTD input types PT1000/NI1000 support a two-wire connection, because the high resistance (1000 ohm)
of the sensor element compensates for voltage drop.
Unitronics
IO - PT 400, IO - PT 4K
I / O E x p a n s i o n M o d u l e s
PT1000/NI1000
3 wire connection
RTD
*
5
Need help?
Do you have a question about the IO-AI4-AO2 and is the answer not in the manual?
Questions and answers