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Timeout reads back the data from the multimeter.
If the buffer is set to Internal, this value is the time needed to read the samples from the multimeter. If the buffer is set to Output, this value also includes the time required for the multimeter to measure the data. If the multimeter is set to external triggering, the time between external triggers must also be considered when setting this value.
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Samples specifies the number of readings to take each time a trigger from the selected trigger source is received.
The default value is one sample per trigger. The valid range is 1 to 50,000 samples per trigger. If the value selected is not within the range, it is changed to the nearest acceptable value.
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VISA session is a unique reference to an instrument I/O session. It identifies which device to communicate with and all configuration information to perform the I/O.
A VISA session is a unique logical identifier used by VISA to communicate with a resource. The VISA session is maintained by the VISA resource name control and is not seen by the user.
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Source specifies the trigger source. The choices are external (hardware triggering), software triggering, or internal (auto triggering).
The following are valid ranges:0 | Internal (default) | 1 | External | 2 | Software |
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Function sets the function to be configured by the other control settings.
The following are valid ranges:0 | DC Voltage (default) | 1 | AC Voltage | 2 | 2-Wire Resistance | 3 | 4-Wire Resistance | 4 | DC Current | 5 | AC Current | 6 | Frequency | 7 | Period | 8 | Continuity | 9 | Diode Testing | 10 | VDC:VDC Ratio |
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Range/Resolution selects automatic or manual ranging and resolution. You can set the resolution to 4, 5, or 6 full digits, plus a half-digit that can only be a 0 or 1. Use 6.5 digits for high accuracy or 4.5 digits for high speed. The default resolution is 5.5 digits.
If TRUE (default), the VI uses automatic ranging and resolution. If FALSE, the VI uses manual ranging and resolution.
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error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurs before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
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code is the error or warning code. The default is 0.
If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
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Manual Res. is expressed in terms of the number of digits the multimeter can measure or display.
You can set the resolution to 4, 5, or 6 full digits, plus a 1/2 digit, which can be only 0 or 1. Select 6.5 digits to increase measurement accuracy and improve noise rejection. Select 4.5 digits to increase measurement speed.
The following are valid ranges: 0 | 4.5 Digits | 1 | 5.5 Digits (default) | 2 | 6.5 Digits |
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Manual Range specifies the desired range for the selected function.
The valid range depends on the Function setting. Function can have the following settings:
- AC Voltage: 0.1, 1, 10, 100, 1K Volts
- DC Voltage: 0.1, 1, 10, 100, 1K Volts
- 2-Wire Resistance: 100, 1K, 10K, 100K, 1M, 10M, 100M Ohms
- 4-Wire Resistance: 100, 1K, 10K, 100K, 1M, 10M, 100M Ohms
- DC Current: 0.01, 0.1, 1, 3 Amps
- AC Current: 1, 3 Amps
- Frequency: Auto ranging
- Period: Auto ranging
- Continuity: Auto ranging
- Diode: Auto ranging
- Ratio: Auto ranging
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Manual Delay specifies a delay between the trigger signal and each sample that follows.
The valid range is 0 to 3600 seconds. If the value you select is not within the range, the nearest acceptable value is used.
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dup VISA session is a copy of VISA session. Use dup VISA session programmatically to pass VISA Session to any calling VIs.
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Measurements displays the output of the selected function.
This includes all mathematical operations except MIN/MAX. This array records all measurements taken when multiple triggers or samples are selected.
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error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
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code is the error or warning code.
If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
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You can select autoranging, or set a manual range for all functions except frequency, period, continuity, diode check, and ratio. Selecting one of these functions sets autoranging by default. To optimize for speed, turn resolution to 4.5 digits, set a manual range, set trigger delay to minimum, and turn off error queries.