Specifications

Using the DMM and ARB 83Chapter 4
Note A data file using this format can be generated by an E1563A Digitizer using
an appropriate action or the using the “WaveformDataWrite” or other
supplied standard action.
How to download a custom data type waveform is shown in testplan
‘
arbcustom_file.tpa’. The downloaded waveform is a 1 kHz (1.0 mS),
2 V peak ramp, consisting of 21 segments. A review of the testplan is as
follows:.
Test Group/Test/Action Name Description
testgroup Arb waveform from file Downloads a waveform from a file.
Switching Connect Arb channel 1 output to ABus1 and UUT Common.
test setup Arb Setup arb output circuitry.
arbConfOutControls Configures Arb’s output circuitry.
arbSet Sends setup data to Arb.
test get and download data Gets download waveform data from file and downloads the data to the Arb.
WaveformDataRead Reads data from file and store it in an array variable.
Arb_Dl_Waveform_Data Download the data into the Arb that was read from the file to generate a
data type waveform.
The ‘waveform_name’ parameter is set to “wave1” to give the
downloaded waveform that name.
The waveform time or frequency is set to 1 kHz using the ‘SampleTime’
parameter value in the “WaveformDataRead” action where frequency = 1 /
(sample time * number of samples) = 1 / (0.000047619 * 21 = 0.001 S =
1kHz
test output custom waveform Executes the downloaded waveform.
arbInitiate Initialize the Arb to output the waveforms. Start outputting the waveform.
Arb_Select_Wave_By_Name Selects and outputs the waveform using the name entered in the
‘waveform_name’ parameter (i.e., “wave1”) This is the same name as the
name in the ‘waveform_name’ parameter of the “Arb_Dl_Waveform_Data”
action.
DialogOkay This optional action is used here to view waveform.
Figure 4-13. Entering File Name and Sample Time
Enter file name and path here
Enter waveform time/frequency here (e.g., “SampleTime’ of
0.000047619 = frequency of 1 kHz (0.000047619 * 21) = 0.001 S;
1 / 0.001 = 1 kHz)
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