Maximum clock frequency cRIO 9022

[spalinowy]

I recently wanted to read data from an SSI absolute encoder on a cRIO 9022 with NI9403 card. It turns out that I can only generate the clock signal at 12 kHz and the processor on cRIO is 40 MHz. Am I doing something wrong, or is there such a limit to the signal generated?

[Dharani.R]

The update rate of the NI 9403 module is ~142 KHz (https://www.ni.com/pdf/manuals/374069a_02.pdf - page 5). Are you using this module in cRIO in scan interface mode? If yes, you will be limited to scan rate speed (https://semiengineering.com/understanding-ni-compactrio-scan-mode/).So you can go with NI FPGA mode.