4: Closing and Opening Switching Module Channels Series 3700 System Switch/Multimeter
-6 Document Number: 3700S-900-
Available commands for measuring:
dmm.close
dmm.open
scanning (only with function of DMM configuration set to anything other than 'nofunction')
Equivalent of channel.exclusiveslotclose except it also prepares the
DMM for taking a measurement on the function associated with the
item. For a channel, it will make sure the DMM is connected through
the backplane. However, it will not do this for a channel pattern. It will
close any needed backplane relays and paired channel. It will open
channels and backplane relays that will interfere with measuring on the
specified channel.
For a channel, it will open the channels that would get closed with
dmm.close. For channel pattern,
it will open the items associated with
the image of the pattern.
Close/open bus operation
Use the following commands to control switches over the bus. For detailed information
specifying what happens with each of these commands, see the reference manual.
Function: Closes specified
items in ch_list without
opening any channels.
channel.close(ch_list)
ch_list: string listing the items to close.
Items can include channels, backplane
relays
, and channel patterns.
Function: Opens items
specified in ch_list.
channel.open(ch_list)
ch_list:
string listing the items to open.
Items can include channels, backplane
relays, and channel patterns.
Function: Closes the
specified
channel or channel
pattern in preparation for a
DMM measurement.
dmm.close(ch_list)
ch_list: string listing the channel or channel
pattern to close
Function: Opens the
specified channel and/or
channel pattern.
dmm.open(ch_list)
ch_list
: string listing the channel or channel
pattern to open
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