Find allowable values in matlab data acquisition toolbox

I am trying to set up an NI9237 module. I would like to obtain (through matlab) the allowable values for (internal) excitation voltage, nominal bridge resistance, bridge mode etc. I would also like a generic approach to this so that I can plug any type of hardware module in and it spits out the allowable values for any user-changeable setting.

I know they are in there somewhere because if I try to specify a value that is not allowed, the error message lists the allowable values.

Is this possible?

Thanks

[Walter Roberson]

If you would normally

set(OBJECT, PARAMETER, VALUE)

then try

possible_values = set(OBJECT, PARAMETER)

and likely the result will be a description of the permitted values.

[CM]

Hi Walter, thanks for the tip. That almost works. Unfortunately the answer I get is blank:

x=set(ch{iChannelDevice}, 'ExcitationVoltage')

x =

    '{}'

This got all the available details. Two of the three that I want have empty answers:

    x=set(ch{iChannelDevice})
    BridgeMode: [ Unknown | Full | Half | Quarter ]
    ExcitationSource: [ Internal | External | None | Unknown ]
    ExcitationVoltage: {}
    NominalBridgeResistance: {}
    Range: -0.025 to +0.025 VoltsPerVolt
    Name: {}
    ADCTimingMode: {}

[Walter Roberson]

I am not at all sure, but I suspect that is a reflection of the fact that ExcitationVoltage is only set in some modes.