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IEEE-488 Reference
5.13.1
Parameter
Short-form
formats
Defaults
Query
command
Description
5-76
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[:ROUTe] subsystem
:CLOSe <list>
[:ROUTe]:CLOSe <list>
<list> = (@ chanlist)
where; chanlist is the specified list of channels (channel list) to be closed.
:clos (@ chanlist)
Power-up
All channels open
*RST
No effect
:SYSTem:PRESet
No effect
:CLOSe? <list>
Short-form formats:
Response message:
The :CLOSe command is used to close the channel(s) specified by the channel list (chanlist) in
the <list> parameter. The following examples demonstrate various forms for expressing channel
entries for a chanlist.
Chanlist
1!2!4
2!36
1!6, 1!18, 2!3!6
1!2:1!10
1!2:1!10, 2!3!6
1!30:1!40, 2!1:2!10
1!4!1:1!4!10, 2!1!1:2!4!10
M36
The :CLOSe? <list> query command is used to determine the state (closed or not closed) of each
specified channel. After sending this command and addressing the Model 7001 to talk, the val-
ues for the specified channels will be sent to the computer. A value of "1" indicates that the chan-
nel is closed, and a "0" indicates that the channel is not closed (open).
For example, assume channels 2, 3 and 6 are closed and the following query command is sent:
:clos? (@ 1:10)
Close specified channels
Query state of specified channels.
:clos? (@ chanlist)
1 = specified channel(s) closed.
0 = specified channel(s) not closed.
Single channel (Slot 1, Row 2, Column 4).
Single channel (Slot 2, Channel 36).
Multiple channels separated by commas.
Range of channels (2 through 10).
Range entry and single entry separated by commas.
Range of multiplex channels (last 10 channels on card 1,
first 10 channels on card 2).
Range of matrix channels (10 columns of row 4 on card 1,
10 columns of row 1 on card 2).
Channel pattern stored at memory location M36.
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