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Signal Conditioning
Connect a signal to a PCI 6225 board and a PCIe 7842 board at the same time
I have a signal from a pressure sensor that is converted from 4-20mA to a 0-10V signal with a Phoenix contact MACX MCR-UI-UI-NC.
This signal is connected at the same time on an AI from a PCI 6225 board and an AI from a PCIe 7842 board.
The two boards are connected with differential.
When we read the measurement from the boards, we have inconsistent measurement on the PCI 6225.
For example, if I have 5.8V (read from a voltmeter on each card), I read in my application 5.8V on the FPGA board but 10.7V from the PCI 6225.
If I unconnect the FPGA board, I read 5.8V on the PCI 6225.
I have connected my signal:
- On the PCI 6225: AI35+ and AI35-
- On the PCIe 7842: AI0+ and AI0-
I used this as reference:
What did I do wrong?
