Hello, I am using a CRIO 4-Slot chassis with a 9002 controller and a 9201 (8 channel) analog input module. I am building 3 identical systems, and I noticed that one of my systems has a voltage offset in the analog input. Specifically, I looked at the AI cal (lsb and offset) for the systems, and the offset for this system is different. If I probe the first channel info, the good system has the following parameters: lsb - 5143521 offset - 12693677 The system that isn't reading correctly has the following: lsb - 5140959 offset - 2745370 What causes the difference in offsets? I had previously had a 9215 module plugged into the system with the bad offset, could that affect it? I have tried recompiling my FPGA vi, redownloading the fpga vi to flash memory, with no luck. I am using LV 8.2. Since I can't see the modules themselves in MAX, how do I figure this one out? Thanks, Rob

Real-Time Measurement and Control

It appears that I had not refreshed, and posted my previous post without seeing that the grounding issue was already discussed as the culprit.

Best Regards,

JLS

Best,
JLS
Sixclear

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