How to detect whether cRIO modules are connected

[Staab_Engineering]

I have some FPGA code that streams data off a 9219 and 9239 module. I want to disable that code if the modules aren't connected. I've tried checking for 0 values of the Module ID and Serial Number, but neither of those seems to be working. What property or method do you query in LVFPGA to see whether the module is connected?

[KateB · Accepted solution]

Check an error output on FPGA IO node of particular module. If I/O is not existed, it'll give an error.