Series 3700 System Switch/Multimeter Quick Start Guide
Section 4
:
Frequently Asked Questions
Document Number: 3700S-903-01 Rev. A / August 2007
4-3
WARNING
Careless channel pattern operation could create an electric shock hazard
that could result in severe injury or death. Improper operation can also
cause damage to the switching modules and external circuitry. Controlling
multiple channels using channel patterns should be restricted to
experienced test engineers who recognize the dangers associated with
multiple channel closures.
CAUTION
To prevent damage to a switching module, do not exceed the maximum signal
level input for that module. Most switching modules are rated for 300V.
NOTE
The Series 3700 is capable of scanning switching module channels. Each channel in
the scan can have its own unique DMM configuration.
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.
ICL
Description
Usage
channel.close
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.
channel.open
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.
dmm.close
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
dmm.open
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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