User manual

:CLOSe:STATe?
:ROUTe:CLOSe:STATe? Query closed channel or channel pair
Description The response message for this query command indicates the channel (or
channel pair) that has been closed on the internal scanner card using the
:rout:close <chan num> command (or channels closed from the front pan-
el). Note that for 4-pole operation, the paired channel is not included in the
response message. For example, if channel pair 4 and 9 has been closed,
the (@4) response message will be returned.
NOTE For 4-pole operation, the rout:mult:close? query command includes the
paired channel in the response message (see “Multiple channel control”).
The rout:close? query command will not indicate channels that have been
closed using the rout:mult:close <list> command (see “Multiple channel
control”).
Channels cannot be closed if a scan (internal or external) is presently en-
abled. See the :LSELect <name> command in “Scan commands” to dis-
able scan operations.
:OPEN:ALL
:ROUTe:OPEN:ALL Open all input channels
Description This command is used to open all input channels (1 through 10) on the
internal scanner card.
The only channel this command will not open is channel 11. This channel
is the 2-pole/4-pole relay and is controlled by the multiple channel com
-
mands. See “Multiple channel control” for details on controlling channel
11.
Sending rout:open:all disables scan operation (sets :LSELect to NONE;
see “Scan commands”).
Multiple channel control
The following commands let you close one or more channels at the same
time. They also let you manually select the 2-pole or 4-pole mode of op-
eration.
:CLOSe <list>
:ROUTe:MULTiple:CLOSe <list> Close specified channels
Parameter <list> = (@ chanlist) Specify channels to close
where chanlist is the list of channels (1 through 11) to be closed.
This command lets you have multiple channels closed at the same time.
When this command is sent, the channels specified in the chanlist close.
Pole mode is not affected by the selected measurement function. Instead,
it is selected by controlling channel 11, which is the 2-pole/4-pole relay.
Closing channel 11 selects the 2-pole mode. When channel 11 is open,
2000-900 (J - Aug 2010) BOOK.fm Page 33 Wednesday, October 12, 2011 12:29 PM