Solution
The NI 9151 R Series expansion chassis for C Series I/O imposes speed limits on some modules. In addition, the NI 9151 does not support sharing a timebase between modules with delta-sigma ADCs.
Modules that require high SPI CLK frequencies are not suitable for use with the NI 9151. Modules that require High Speed ​​Interface (DDR clock and maximum SPI throughput) are not supported. These constraints are due to propagation delays and signal integrity from the cable connecting to the NI 9151.
Below is a list of modules that are
speed-limited by the NI 9151 R Series expansion chassis or that
cannot share the timebase.
C Series Module Type | Model Numbers |
---|
Analog Input Modules | NI 9201, NI 9203, NI 9205, NI 9206, NI 9221 |
Analog Output Modules | NI 9263, NI 9264, NI 9265 |
Digital Modules | NI 9403, NI 9425 |
Delta Sigma type ADC Modules | NI 9218, NI 9225, NI 9227, NI 9229, NI 9230, NI 9232 , NI 9234, NI 9235, NI 9236, NI 9237, NI 9238, NI 9239, NI 9242, NI 9244, NI 9246, NI 9247, NI 9251 |
Delta-Sigma DAC Module | NI 9260 |
CAN Modules | NI 9852, NI 9853 |
Note: The following modules are
not supported on the NI 9151 expansion chassis.