I'd like to use the PXIe-6358 analog input with NRSE or RSE configuration. But when I try to set the mode to anything else than "Differential" I get:
DaqError: Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property. Property: DAQmx_AI_TermCfg Requested Value: DAQmx_Val_NRSE Possible Values: DAQmx_Val_Diff Channel Name: Dev1/AI1 Task Name: _unnamedTask<2C> Status Code: -200077
I could not find any information in the Datasheet, Specification and API Documentation that says that the PXIe-6358 does not support NRSE, so I do not understand what is the problem here.
The error is correct. You cannot configure single-ended configurations on the PXIe-6538. The 6358 has simultaneously-sampled analog input; on simultaneous devices, the channels are always differential.
(The NI 6358 datasheet states "Number of channels: 16 differential". For comparison, the NI 6363, which has multiplexed analog input and can do single-ended measurements, has "Number of channels: 16 differential or 32 single ended" in its datasheet.)
(I am the OP)
thanks bstreiff for clarifying.
Now I looked really closely at the X Series User Manual again and also found the following:
Refer to one of the following sections, depending on your device: • Analog Input on MIO X Series Devices—NI 632x/634x/6351/6353/6355/6361/6363/6365/6375 devices can be configured for single-ended and differential analog input measurements. • Analog Input on Simultaneous MIO X Series Devices—NI 6356/6358/6366/6368/6376/6378 devices can be configured for differential analog input simultaneous sampled measurements.
What I still find confusing is: If I look into the help under "Supported Properties by Device -> NI PXIe-6358 Supported Properties -> Analog Input >> Input Configuration >> Terminal Configurations" it still lists the NRSE and RSE and so on as valid values. But I guess that just means the values that are valid for this typedef...