High Voltage SourceMeter Instrument Reference Manual Section 3:
2470-901-01 Rev. A / May 2019 3-11
Communications activity indicator
The activity indicator is located to the right of the communications indicator. When the instrument is
communicating with a remote interface, the up and down arrows flash.
Figure 34: Communications indicator
If a service request has been generated, SRQ is displayed to the right of the up and down arrows. You
c
an instruct the instrument to generate a service request (SRQ) when one or more events or
conditions occur. This indicator stays on until the serial poll byte is read or all the conditions that
caused SRQ are cleared.
Active buffer indicator
The Active Buffer indicator shows the name of the active reading buffer. Select the indicator to open a
menu of available buffers. Select a buffer name in the list to make it the active reading buffer. The
name of the new active reading buffer is updated in the indicator bar.
The green bar next to the buffer name indicates how full the buffer is.
Figure 35: Active buffer indicator menu
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