Solution
NI CompactRIO Scan Mode does scan all analog input channels. This means you cannot meet the maximum sampling rate of a multiplexed module when used in Scan Mode.
Even if you are not reading all of the channels in LabVIEW, you can still monitor them in
NI Distributed System Manager.
There is no functionality to disable these channels. If you need the higher sampling rate for that specific module, you can use it in
FPGA Mode or
Real-Time (NI-DAQmx) Mode .