Instead of sourcing the supplied voltage (from our DC power supply) when sequencing through the array (we're using a 4x8), it grounds my electrode to 0VDC. When it should be grounded (OFF postition), it supplies a voltage that seems to be in the ballpark of the supposed voltage drop through our load resistors (say we'd like to switch a 60VDC signal, it will source approx 12VDC).
Ultimately, what we're doing is trying to generate an electric field on a set of electrodes. We have our power supply wired to the first row terminal (RO). The + lead from the column terminal of our SCXI-1332 goes to a junction on our breadboard. From this junction, one lead goes immediately to our electrodes, and a second lead goes to a resistor (2 MOhm) to simulate a load. From the other side of the resistor, a lead returns to the - side of the column.
This was working in the past, but for some reason, this problem popped up two days ago. I went into the Measurement and Automation Explorer, and used 'refresh', which worked once, but after that, the problem persisted. If anything, that one time made me feel better about my wiring, but not much else.
If anyone could help me, I'd greatly appreciate it.
Thank you,
Cal
I'm not sure which driver controls the SCXI 1000/1128/1332 bundle, but these are the ones displayed in the MAX: ni5401, ni5404, ni5411, ni5412, ni5421, ni5422, ni5431, ni5441, niFgen, niScope.
