Ok, thanks for replying.
In fact I finally solved the problem and it is possible to use at the same time both motion I/O and Digital I/O from PXI-7344 boards. So my SCB-68 is supplying analog outputs thanks to digital ports from PXI-7344.
By the way I would like to share another topic which deals with programming.
I am currently doing some tests on a project and the steering of equipments are correct.
But I would like to optimize the steering of the cylinder with the pressure setpoint output since I am running at the momemt in servo axis without any feedback yet.
In fact I am using the normal motion vis (Target Load Position.vi, start motion.vi and I would like to know how to configure it well in closed-loop mode with UMI-7764. I know the encoder inputs are only for position encoder feedback - so they are not suitable for anything else. The analog inputs are actually for analog position feedback.
The control loops on the motion controller - axis configured as servo axis - the motion controller dosen't care if it is controlling position or force (just the name of the VIs, e.g. "Load Position.flx" is a bit confusing for this use case, but that contains the motion VIs, e.g. a "Load Force VI").
So if you can advise me on how to make or get an efficient vi for closed loop control in servo axis with the feedback of the charge amplifier with motion control (UMI-7764), it would be nice.
Thanks