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Chapter 5 Remote Interface Reference
Scanning Commands
4
5
ARM
:TIMer <seconds>|MIN|MAX
:TIMer? [MIN|MAX]
This command sets the sweep-to-sweep interval in the arm layer (the
TRIGger:TIMer command sets the channel-to-channel interval in the
trigger layer). This timer is valid only if the TIMer is set using the
ARM:SOURce command.
You can set seconds to any value between 0.000 (MIN) and 99999.999
(MAX) in increments of 0.001 seconds. When power is applied the value is
set to 0 (MIN).
The ARM:TIMer? query returns the sweep-to-sweep interval in seconds.
The returned number is a value between 0 and 99999.999 (seconds). The
optional parameters MIN and MAX allow you to query the module for
these values instead of looking them up in the command reference. MIN
returns “0” and MAX returns “99999”.
TRIGger
:SOURce <BUS|EXTernal|IMMediate|TIMer|MIX|HOLD>
:SOURce?
This command specifies the event control source for the trigger layer. A
complete description of the trigger layer and how it relates to scanning
begins on page 85. The TRIGger source can be specified to be one of the
following:
•
BUS - the scan advances after a *TRG or GET is received.
•
EXTernal - the scan list advances after an external trigger is
received.
•
IMMediate - the scan advances immediately after the previous
channel is closed (if no ROUTe:CHANnel:DELay value is set).
•
TIMer - the scan advances after the timer interval.
•
MIX - the scan advances after a BUS or EXTernal event occurs.
•
HOLD - the sweep of the scan list starts when a
TRIGger[:IMMediate] command is received.
After the power is applied or a reset (*RST) command is received, the
default TRIGger source is IMMediate.
The TRIGger:SOURce? query returns a string. Possible values retuned
include: BUS, EXTernal, IMMediate, TIMer, MIX, or HOLD.
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