IEEE-488 Reference
4-98
Description This action command is used to simply open any closed channel on the Model 2001 SCAN. Note
that this command performs the same function as the :ROUTe:OPEN ALL command that was
previously discussed.
Programming example OUTPUT 716; “:rout:open:all” ! Open all channels
4.18.4 :SCAN commands
[INTernal] <list>
:ROUTe:SCAN:[INTernal] <list> Define internal scan list
Parameter <list> = (@ scanlist)
where; scanlist is the specified list of channels (1 to 10) to be scanned.
Format :rout:scan <list>
Defaults Power-up Saved power-on setup
*RST All 10 channels in scan list
:SYSTem:PRESet All 10 channels in scan list
Query :INTernal]? Query programmed scan list
Short-form format: :rout:scan?
Response message: Currently programmed scan list. For example:
(@ 1,2,3,4,5,6,7,8,9,10)
Description This command is used to define the scan list for the internal Model 2001-SCAN scanner card.
The scan list can contain 2 to 10 channels. The following examples demonstrate the various
forms for expressing a scan list:
list = (@ 2,4,6) Channels separated by commas (,).
= (@ 1:8) Range of channels (1 though 8). Range limits separated by a colon (:).
= (@ 1:5,7) Range entry and single entry separated by a comma.
Only the channels specified in the scan list will be scanned. The order that channels are listed in
the scan list is not important. The instrument will automatically re-arrange the scan list so that
the channels are scanned in numeric order starting with the lowest channel number. Note that
channels 5 and 10 of the Model 2001-SCAN are designed for high speed.
Important Note: When this command is sent, it will automatically select the internal scanner
(see :ROUTe:SCAN:LSELect INTernal). This means that if the instrument is currently making
measurements, the scan will start as soon as this command is used to define the scan list. To pre-
vent this, you can first place the instrument in idle and then define the scan list. Sending the fol-
lowing two commands (in the order shown) will place the instrument in idle:
:INITiate:CONTinuous OFF
:ABORt
With the instrument in idle, you can then define the scan list without starting the scan. When
ready, you can start the scan by sending either of the two following commands.
:INITiate or :INITiate:CONTinuous ON
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