Dmm.close() - Keithley 3700A Series Reference Manual

Section 11: TSP command reference

dmm.close()

This function closes the specified channel or channel pattern to prepare for a measurement.
Type TSP-Link accessible
Function Yes
Usage
dmm.close("channelList")
channelList
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
dmm.configure.set()
page 11-181).
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.
11-160
Affected by
A string that lists the channel or channel pattern to close
(on page 11-166), dmm.setconfig()
Series 3700A System Switch/Multimeter Reference Manual
Where saved Default value
(on page 11-227), and
3700AS-901-01 Rev. D/June 2018
dmm.getconfig() (on