Tutorial
Taking measurements
This tutorial explains how to take measurements and query the results.
Taking a measurement and querying the result
In the following command example, after the load is turned on, INIT:ACQ is entered to immediately take a measurement, and then the measurement is queried.
| 1 | :TRIGger:ACQuire:SOURce IMM | 'Set the measurement trigger source to IMMediate. |
|---|---|---|
| 2 | :INPut ON | 'Turn the load on. |
| 3 | :INITiate:ACQuire | 'Start measurement. |
| 4 | :FETCh? | 'Query the measured value. |
In the line 3, the PLZ12005WH/PLZ20005WH switches to measurement trigger wait state, but since the trigger source is set to IMMediate in line 1, measurement starts immediately.
Taking several measurements and querying the results
In the following command example, after the load is turned on, INIT:ACQ is entered to immediately take three measurements, and then the measurement is queried.
| 1 | :TRIGger:ACQuire:SOURce IMM | 'Set the measurement trigger source to IMMediate. |
|---|---|---|
| 2 | :TRIGger:ACQuire:COUNt 3 | 'Set the measurement count to 3. |
| 3 | :INPut ON | 'Turn the load on. |
| 4 | :INITiate:ACQuire | 'Start measurement. |
| 5 | :DATA:R? | ‘Query the measured value. |
In the line 4, the PLZ12005WH/PLZ20005WH switches to measurement trigger wait state, but since the trigger source is set to IMMediate in line 1, measurement starts immediately. Since the measurement count is set to 3 in line 2, measurement is taken three times. When several measurements are taken, use DATA:R? (line 5) to query the measured values.
For the differences in the methods of querying measured values, see “Querying measured values”.
Starting a measurement with a trigger and querying the results
You can use a trigger to take measurements by setting the measurement trigger source (TRIG:ACQ:SOUR) to anything other than IMMediate. Here, an example of starting a measurement with a DIGITAL2 input after the load is turned on and querying the measured values is explained.
| 1 | :TRIGger:ACQuire:SOURce DIGITAL2 | 'Set the trigger source to DIGITAL2. |
|---|---|---|
| 2 | :INPut ON | 'Turn the load on. |
| 3 | :INITiate:ACQuire | 'Switch to measurement trigger wait state (start a measurement with DIGITAL2 input). |
| 4 | :FETCh? | 'Query the measured value. |
The PLZ12005WH/PLZ20005WH switches to measurement trigger wait state in line 3. Because the trigger source was set to DIGITAL2 in line 1, when a signal is received through pin 13 of the EXT CONT connector when the PLZ12005WH/PLZ20005WH is in the trigger wait state, measurement starts.
Electronic Load PLZ12005WH/PLZ20005WH