Resistance value of channel's shunt resistor
When working with the session-based interface, the analog input current channel's ShuntResistance property indicates resistance in ohms. This value is automatically set if the shunt resistor is located internally on the device and is read only.
Set the shunt resistance of an analog input current channel.
Create a session and add an analog input current channel.
s = daq.createSession('ni') ch = addAnalogInputChannel(s,'cDAQ1Mod7',0,'Current');
Set the ShuntLocation to External and the ShuntResistance to 20.
ch.ShuntLocation = 'External'; ch.ShuntResistance = 20
ch = Data acquisition analog input current channel 'ai0' on device 'cDAQ1Mod7': ShuntLocation: External ShuntResistance: 20 Coupling: DC TerminalConfig: Differential Range: -0.025 to +0.025 A Name: '' ID: 'ai0' Device: [1x1 daq.ni.CompactDAQModule] MeasurementType: 'Current' ADCTimingMode: HighResolution