# :DIFF:YTOP?

:DIFF Scaling Commands

- :DIFF:DAVertical
- :DIFF:TTCHannels
- :DIFF:YBOTtom?
- :DIFF:YOFFset
- :DIFF:YRANge
- :DIFF:YSCale
- :DIFF:YSCale:FINE
- :DIFF:YTOP?
- :DIFF:YUNits

## Query Syntax

    :DIFFN:YTOP?

Where N identifies a specific differential waveform in the form "<connection1-8>_<ch1|ch3|ch5|ch7>". With connection 1, the connection number part (that is, "1_") is optional, and you can simply use the channel number "<ch1|ch3|ch5|ch7>". When two channels are paired to create a differential waveform and a common-mode waveform, the odd-numbered channel is used when specifying the waveform. For example, connection 5 differential waveform 3 (from the pairing of channels 3 and 4) is `DIFF5_3`.

## Description

Queries the amplitude value represented by the graticule's top edge. To query the amplitude value represented by the graticule's bottom edge, use `:DIFF:YBOTtom?`. Use the `:DIFF:YSCale` command to set the amplitude scale (volts or Watts). Use the `:DIFF:YOFFset` command to set the amplitude offset.