The following table defines values for each property constant in the IviDmm class.
| Property |
Value Name |
Defined Value |
Definitions |
| APERTURE TIME UNITS |
Seconds |
0 |
Reports that the units for the value returned by IviDmm Aperture Time are seconds |
|
Power Line Cycles |
1 |
Reports that the units for the value returned by IviDmm Aperture Time are Powerline Cycles. |
| AUTO ZER0 |
Off |
0 |
Disables auto-ranging. The DMM sets the range to the value it most recently calculated. Further queries of this property return the actual range. |
|
On |
1 |
Configures the DMM to take a Zero Reading for each measurement. The DMM subtracts the Zero Reading from the value it measures. |
|
Once |
2 |
Configures the DMM to calculate the range before the next measurement. The DMM uses this range value for all subsequent measurements. Further queries of this property should return the actual range. |
| FUNCTION |
DC Volts |
1 |
Sets the DMM to measure DC
voltage. |
|
AC Volts |
2 |
Sets the DMM to measure AC
voltage. |
|
DC Current |
3 |
Sets the DMM to measure DC
current. |
|
AC Current |
4 |
Sets the DMM to measure AC current. |
| 2 Wire Resistance |
5 |
Sets the DMM to measure 2-wire resistance. |
| 4 Wire Resistance |
101 |
Sets the DMM to measure 4-wire resistance. |
| Frequency |
104 |
Sets the DMM to measure
frequency. |
| Period |
105 |
Sets the DMM to measure period. |
| AC + DC Volts |
106 |
Sets the DMM to measure AC plus DC voltage. |
| AC + DC Current |
107 |
Sets the DMM to measure AC plus DC current. |
| Temperature |
108 |
Sets the DMM to measure temperature in Celsius. |
| MEAS COMPLETE DEST |
None |
-1 |
The measurement complete signal is not routed. |
| External |
2 |
Routes the measurement-complete signal to the external connector. |
| PXI TRIG0 or VXI TTL0 |
111 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL0. |
| PXI TRIG1 or VXI TTL1 |
112 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL1. |
| PXI TRIG2 or VXI TTL2 |
113 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL2. |
| PXI TRIG3 or VXI TTL3 |
114 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL3. |
| PXI TRIG4 or VXI TTL4 |
115 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL4. |
| PXI TRIG5 or VXI TTL5 |
116 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL5. |
| PXI TRIG6 or VXI TTL6 |
117 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL6. |
| PXI TRIG7 or VXI TTL7 |
118 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL7. |
| ECLO |
119 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on ECL0. |
| ECL1 |
120 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on
ECL1. |
| PXI Star |
131 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on the PXI Star trigger bus. |
| RTSI0 |
140 |
|
| RTSI1 |
141 |
|
| RTSI2 |
142 |
|
| RTSI3 |
143 |
|
| RTSI4 |
144 |
|
| RTSI5 |
145 |
|
| RTSI6 |
146 |
|
| RANGE |
On |
-1.0 |
Configures the DMM to calculate the range before each measurement automatically. When this property is set to IVIDMM_VAL_AUTO_RANGE_ON, you can obtain the actual range the DMM is currently using by getting the value of the IviDmm Auto Range Value
property. |
| Off |
-2.0 |
Disables auto-ranging. The DMM sets the range to the value it most recently calculated. Further queries of this property return the actual range. |
| Once |
-3.0 |
Configures the DMM to calculate the range before the next measurement. The DMM uses this range value for all subsequent measurements. Further queries of this property should return the actual range. |
| SAMPLE TRIGGER |
Immediate |
1 |
1 |
| External |
2 |
2 |
| Software Trigger Function |
3 |
The DMM exits the Wait-For-Trigger state or the Wait-For-Sample-Trigger state when the IviDmm Send Software Trigger VI executes. |
| Interval |
10 |
The DMM exits the Wait-For-Sample-Trigger state when the length of time specified by the IviDmm Sample Interval property elapses. |
| PXI TRIG0 or VXI TTL0 |
111 |
111 |
| PXI TRIG1 or VXI TTL1 |
112 |
112 |
| PXI TRIG2 or VXI TTL2 |
113 |
113 |
| PXI TRIG3 or VXI TTL3 |
114 |
114 |
| PXI TRIG4 or VXI TTL4 |
115 |
115 |
| PXI TRIG5 or VXI TTL5 |
116 |
116 |
| PXI TRIG6 or VXI TTL6 |
117 |
117 |
| PXI TRIG7 or VXI TTL7 |
118 |
118 |
| ECLO |
119 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on ECL0. |
| ECL1 |
120 |
120 |
| PXI Star |
131 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on the PXI Star trigger bus. |
| RTSI0 |
140 |
|
| RTSI1 |
141 |
|
| RTSI2 |
142 |
|
| RTSI3 |
143 |
|
| RTSI4 |
144 |
|
| RTSI5 |
145 |
|
| RTSI6 |
146 |
|
| TEMP TC REF JUNC TYPE |
Internal |
1 |
Sets the DMM to use a fixed value for the thermocouple junction compensation. |
| Fixed |
2 |
Sets the DMM to use a fixed value for the thermocouple junction compensation. |
| TEMP TC TYPE |
B |
1 |
Sets the DMM to measure temperature from a B-type thermocouple. |
| C |
2 |
Sets the DMM to measure temperature from a C-type thermocouple. |
| D |
3 |
Sets the DMM to measure temperature from a D-type thermocouple. |
| E |
4 |
Sets the DMM to measure temperature from a E-type thermocouple. |
| G |
5 |
Sets the DMM to measure temperature from a G-type thermocouple. |
| J |
6 |
Sets the DMM to measure temperature from a J-type thermocouple. |
| K |
7 |
Sets the DMM to measure temperature from a K-type thermocouple. |
| N |
8 |
Sets the DMM to measure temperature from a N-type thermocouple. |
| R |
9 |
Sets the DMM to measure temperature from a R-type thermocouple. |
| S |
10 |
Sets the DMM to measure temperature from a S-type thermocouple. |
| T |
11 |
Sets the DMM to measure temperature from a T-type thermocouple. |
| U |
12 |
Sets the DMM to measure temperature from a U-type thermocouple. |
| V |
13 |
Sets the DMM to measure temperature from a V-type thermocouple. |
| TEMP TRANSDUCER TYPE |
Thermocouple |
1 |
Sets the DMM to measure temperature using a thermocouple. Use the IviDmmThermocouple extension group to configure additional settings for this transducer type. |
| Thermistor |
2 |
Sets the DMM to measure temperature using a thermistor. Use the IviDmmThermistor extension group to configure additional settings for this transducer type. |
| 2-Wire RTD |
3 |
Sets the DMM to measure temperature using a 2-wire temperature resistance device. Use the IviDmmResistanceTemperatureDevice Extension Group to configure additional settings for this transducer type. |
| 4-Wire RTD |
4 |
Sets the DMM to measure temperature using a 4-wire temperature resistance device. Use the IviDmmResistanceTemperatureDevice Extension Group to configure additional settings for this transducer type. |
| TRIGGER DELAY |
On |
-1.0 |
Configures the DMM to calculate the trigger delay before each measurement. |
| Off |
-2.0 |
Stops the DMM from calculating the trigger delay. Sets the trigger delay to the last trigger delay the DMM calculated.
 |
Note After you set this property to IVIDMM_VAL_AUTO_DELAY_OFF, further queries of this property should return the actual delay. |
|
| TRIGGER SLOPE |
Positive |
0 |
Sets the trigger event to occur on the rising edge of the trigger pulse. |
| Negative |
1 |
Sets the trigger event to occur on the falling edge of the trigger pulse. |
| TRIGGER SOURCE |
Immediate |
1 |
The DMM exits the Wait-For-Trigger state or the Wait-For-Sample-Trigger state immediately after entering. It does not wait for a trigger of any kind. |
| External |
2 |
The DMM exits the Wait-For-Trigger state when a trigger occurs on the external trigger input. |
| Software Trigger Function |
3 |
The DMM exits the Wait-For-Trigger state or the Wait-For-Sample-Trigger state when the IviDmm Send Software Trigger VI executes. |
| PXI TRIG0 or VXI TTL0 |
111 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL0. |
| PXI TRIG1 or VXI TTL1 |
112 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL1. |
| PXI TRIG2 or VXI TTL2 |
113 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL2. |
| PXI TRIG3 or VXI TTL3 |
114 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL3. |
| PXI TRIG4 or VXI TTL4 |
115 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL4. |
| PXI TRIG5 or VXI TTL5 |
116 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL5. |
| PXI TRIG6 or VXI TTL6 |
117 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL6. |
| PXI TRIG7 or VXI TTL7 |
118 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on TTL7. |
| ECLO |
119 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on ECL0. |
| ECL1 |
120 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on ECL1. |
| PXI Star |
131 |
The DMM exits the Wait-For-Trigger or the Wait-For-Sample-Trigger state when it receives a trigger on the PXI Star trigger bus. |
| RTSI0 |
140 |
|
| RTSI1 |
141 |
|
| RTSI2 |
142 |
|
| RTSI3 |
143 |
|
| RTSI4 |
144 |
|
| RTSI5 |
145 |
|
| RTSI6 |
146 |
|