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6.5
Channel Setup commands
(a)
Input channel units string – ‘uiu’
The input channel has an associated free-form text field that can be used to identify the
units being used. This command is used to set this and its only parameter is a max of 5
characters for the units string.
The current units string can be retrieved using the query ‘uiu?’. The data returned is as
follows:
INPUT UNITS STR:
<units>
… where…
<units>
=
the exact units string as displayed on the front panel
(b)
Input channel range – ‘uir’
Use this command to set the range of the input channel. The single parameter is the actual
value for the range. The number of decimal places passed in the range value dictates the
number of decimal places shown for the main data output (up to a max of 4 decimal places
– any more will get chopped off)
The current range of the input channel is retrieved using the query ‘uir?’. The data returned
is as follows:
INPUT RANGE:
<range>
… where…
<range>
=
the range of the channel (engineering units)
(c)
Input channel full scale – ‘uif’
This command is used to set the full scale voltage for the input channel. The single
parameter is the actual full scale value.
The full scale voltage setting for the input channel is retrieved using the query ‘uif?’. The
data returned is as follows:
INPUT FULLSCALE:
<fs>
… where:
<fs>
=
the full scale voltage of the channel
For more information on the use of input range and full scale, see the Principles section -
7.2.
