Using a pci-7332 in combination with the umi-7774 for driving a stepper motor. Have an issue with the analog input being 0.488Vdc off from the actual reading. I've tried several voltage sources only to have the same issue. I've even used the sample code provided by NI app engineer (found on discussion board analog input issue with the pci-7332) and no result. What could be the reason for the offset?

Motion Control and Motor Drives

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From the db15 analog input through umi through cable to pci board resistor inputs

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