FPGA Analog Out is not generating a signal.

[Roese]

I'm using a PXI-7842R Multifunction Module.  I'm trying to generate a voltage out of the Analog Output pins.  It seems to be pretty basic stuff.  I've already set up to generate digital signals on the DIO lines, and they work fine.

However, when sending a value to the designated AO pins, I get a steady '0' volts.  The pins that are not being used measure -10V.  Am I missing something? I'm at a loss.  I've attached an image of the block diagram...it's pretty basic.

[RavensFan · Accepted solution]

Pictures don't tell us much.

What values do you have in those controls?

Why do you have them as single precision floats?

Those red coercion dots  show that there is a coercion happening when those values are passed into the FPGA node.  Those are blue which means they are looking for an integer.

As I recall, you need to wire an I16 integer to that terminal.  It has a value of a -32768 to 32767 which scales to the range of -10V to 10V assuming that is the voltage output range of your analog channel.