IEEE-488 Reference
5-76
5.13.1
:CLOSe <list>
[:ROUTe]:CLOSe <list> Close specified channels
<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> Query state of specified channels.
Short-form formats: :clos? (@ chanlist)
Response message: 1 = specified channel(s) closed.
0 = specified channel(s) not closed.
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 Single channel (Slot 1, Row 2, Column 4).
2!36 Single channel (Slot 2, Channel 36).
1!6, 1!18, 2!3!6 Multiple channels separated by commas.
1!2:1!10 Range of channels (2 through 10).
1!2:1!10, 2!3!6 Range entry and single entry separated by commas.
1!30:1!40, 2!1:2!10 Range of multiplex channels (last 10 channels on card 1,
first 10 channels on card 2).
1!4!1:1!4!10, 2!1!1:2!4!10 Range of matrix channels (10 columns of row 4 on card 1,
10 columns of row 1 on card 2).
M36 Channel pattern stored at memory location 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)
Parameter
Short-form
formats
Defaults
Query
command
Description
[:ROUTe] subsystem
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