User Manual

Command Groups
NOTE. The oscil
loscope s tores waveforms that are ≤2500 data points long. The
oscilloscope truncates waveforms longer than 2500 data points.
Waveform Prea mb le
Each wavefor
m that is transferred has an associated waveform preamble that
contains information such as the horizontal scale, vertical scale, and other settings
in place when the waveform was created. Refer to the WFMPre? commands for
more information about the waveform preamble.
Scaling Waveform Data
Once you transfer the waveform data to the controller, you can convert the data
points into voltage values for analysis using information from the waveform
preamble.
Transferring Waveform
Data
Data transfer times depend on data format, data width, and the speed of the
controller. (See page 4-1, Programming Examples.)
From the oscilloscope. To transfer waveforms from the oscilloscope to an
external controller, follow these steps:
1. Use the DATa:SOUrce command to select the waveform source.
2. Use the DATa:ENCdg command to specify the waveform data format.
3. Use the DATa:WIDth command to specify the number of bytes per data point.
4. Us
etheDATa:STARt and DATa:STOP commands to specify the part of the
waveform that you want to transfer.
5. U
se the WFMPre? command to transfer w aveform preamble information.
6. Use the CURVe command to transfer waveform data.
To the oscilloscope. To transfer waveform data to an oscilloscope waveform
storage location, follow these steps:
1. Use the DATa:DESTination command to specify the stored waveform location.
2. Use the DATa:ENCdg command to specify the waveform data format.
3. Use the DATa:WIDth command to specify the number of bytes per data point.
4. Use the DATa:STARt command to specify the first data point in the waveform
record.
5. Use the WFMPre? command to transfer waveform preamble information.
6. Use the CURVe command to transfer waveform data.
2-30 TDS200, TDS1000/2000, TDS1000B/2000B, TDS2000C, TPS2000 Programmer