R
EMOTE
O
PERATION
Power Analyzer User Manual
© Voltech 2010
Page 47
As states before, there are many ways in which to send commands to the ,
but there are some common rules for all methods.
All instructions should be terminated with a line feed (ASCII 10) character
All returned information will be terminated by a line feed (ASCII 10) character
Only one instruction can be sent at a time. ":SEL:VLT;:SEL:AMP" is not a valid
command.
For all commands that configure the unit, allow 0.5 seconds between each
command or use flow control to wait until the next command is sent.
Results are updated approximately every 0.5 seconds.
A range change will result in the results not being updated for the 0.5 second
interval. Also, the running of auto-zero, which happens every 1 minute, will
result in no new results for approximately 1 second. To avoid both of these
scenarios, ranges can be fixed, and auto-zero can be disabled.
5.4.
C
OMMUNICATIONS EXAMPLES
.
Basic selection and returning of result.
The results are returned using the FRD command. This returns the results that are
shown on the screen, in the order in which they appear on the screen. As results are
selected using comms, the results are added to the bottom of the list, with the
exception of harmonics, which always appear at the end of the list.
:SEL:CLR
clears all results
:SEL:VLT
:SEL:AMP
:SEL:FRQ
:SEL:WAT
:SEL:VAS
:SEL:VAR
:SEL:PWF
:SEL:VPK+
