Section 11: TSP command reference
Series 3700A System Switch/Multimeter Reference Manual
11-76
3700AS-901-01 Rev. D/June 2018
channel.open()
This function opens the specified channels, analog backplane relays, and channel patterns.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
Yes
Usage
channel.open("
channelList
")
channelList
String listing the channels, analog backplane relays, and channel patterns to open
Details
This function opens the specified channels based on the switching configuration of the channel.
For the items specified to open, the channels associated with them open, as well as the associated
analog backplane relays for each. For channel patterns, the analog backplane relays that get opened
are the ones that are specified when the pattern is created (through
channel.pattern.setimage()
and
channel.pattern.snapshot()
). For channels, they are
the ones specified with the
channel.setbackplane()
function. Another option for opening analog
backplane relays with this command is to include them in the
channelList
parameter.
This command has no effect on how the DMM is configured.
The settling time associated with a channel must elapse before the command completes. User delay
is not added when a relay opens.
For digital I/O, DAC, and totalizer channels, there is no valid behavior; calling on a specific channel
generates an error. If a digital I/O, DAC, or totalizer channel is in the range of channels, the channel
is ignored.
Example 1
channel.open("1001:1005, 3003, Chans")
Opens channels 1 to 5 on slot 1, channel 3
on slot 3, and the channel pattern or label
Chans
.
Example 2
channel.open("slot3, slot5")
Opens all channels on slots 3 and 5.
Example 3
channel.open("allslots")
Opens all channels on all slots.
