# Querying Waveform Data

Migration Guide

- Migration Guide
- SCPI Differences
- SCPI Similarities
- SCPI Command Subsystem Comparison
- SCPI Programming Tools
- Setting Up the Oscilloscope in SCPI Programs
- Synchronizing Analysis with Acquired Data in SCPI Programs
- Querying Measurement Results
- Querying Waveform Data
- Waveform Load/Save Format Support
- Debugging SCPI Programs
- Example Programs for Common Oscilloscope Tasks, Old vs. New

Float format waveform data is recommended in Infiniium 2026 because it has sufficient precision for captured and processed waveform data with half as many bytes as the double format. The number of bytes used for a waveform data point is important when saving or transferring deep memory waveforms. Float data can be easily imported into packages like NumPy or MATLAB.

Comparisons of the formats available for waveforms, color grade databases, and histogram databases are shown in the following tables.

Waveform Y Data Format Comparison
Waveform Data Format | Available in earlier Infiniium | Available in Infiniium 2026
--- | --- | ---
ASCII | X | X
BYTE | X1 |
WORD | X1 | X
Single-precision floating-point (float) |  | X2
Double-precision floating-point (double) |  | X2
1 Indefinite-length binary block data transfers supported by ":WAVeform:STReaming ON" setting.
2 Indefinite-length binary block data transfers supported by "IBLock" queries.

Waveform XY Data Format Comparison
Waveform Data Format | Available in earlier Infiniium | Available in Infiniium 2026
--- | --- | ---
ASCII |  | X
Single-precision floating-point (float) |  | X2
Double-precision floating-point (double) |  | X2
2 Indefinite-length binary block data transfers supported by "IBLock" queries.

Color Grade Database Format Comparison
Waveform Data Format | Available in earlier Infiniium | Available in Infiniium 2026
--- | --- | ---
ASCII |  | X
Binary | X (unsigned 64-bit integer) | X (unsigned 32-bit integer)
Single-precision floating-point (float) | X |
XML (*.cgsi format file) |  | X

Histogram Database Format Comparison
Waveform Data Format | Available in earlier Infiniium | Available in Infiniium 2026
--- | --- | ---
ASCII | X | X
Binary | X (unsigned 64-bit integer) | X (unsigned 32-bit integer)