Resistance value of channel’s shunt resistor
When working with the session-based interface, the analog input
indicates resistance in ohms. This value is automatically set if the
shunt resistor is located internally on the device and is read only.
Before starting an analog output channel with an external shunt resistor, specify the shunt resistance value.
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');
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