Section 11: TSP command reference
Series 3700A System Switch/Multimeter Reference Manual
11-160
3700AS-901-01 Rev. D/June 2018
dmm.close()
This function closes the specified channel or channel pattern to prepare for a measurement.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
Yes
Usage
dmm.close("
channelList
")
channelList
A string that lists the channel or channel pattern to close
Details
When you close a channel or channel pattern:
•
Channels on all slots are opened if they interfere with measurement, including analog backplane
relays 1 and 2 and commonside ohm backplane relays. The opening and closing of channels
mimics that of
channel.exclusiveslotclose(
). Therefore, when using a for-loop with
dmm.close()
command, the last channel on each slot is closed at the end of the for loop
execution.
•
To have additional analog backplane relays 3 through 6 close, use them on an alternate slot. If
they need to be on same slot, create a channel pattern.
•
To have additional channels close, use patterns. When you use patterns, you must specify all
items to close, including analog backplane relays. With patterns, there is no auto manipulation of
analog backplane relays 1 and 2 as there is with channels.
•
Any amp channels will open. If you need to have multiple amp channels closed, create a channel
pattern.
•
Associated channels and analog backplane relays will close, which include analog backplane
relay 1 and 2, as needed based on configuration associated with channel (see
dmm.getconfig()
). Analog backplane relays specified by
channel.setbackplane()
are not
used.
The DMM configuration is determined by the configuration associated with the channel or channel
pattern being closed. If the configuration is a default name, the function of that configuration will be
reset to factory default settings. You must create a unique DMM configuration to avoid using factory
default settings when assigning to a channel. For more information on setting DMM configuration, see
(on page 11-166),
(on page 11-227), and
This command allows you to separate the closing of channels from measuring. Therefore, you may
execute any number of commands between the close and measure commands to satisfy your
application needs.
