Section 4: Close-open overview
Series 3700 System Switch/Multimeter User's Manual
4-12
3700S-900-01 Rev. C / July 2008
The following figure shows an example of how the channel and its paired
channel are connected to the DMM Input and Sense terminals of the Series
3700 for a 4-wire DMM operation. Assume a switching module with 20 channels
is installed in Slot 1 of the mainframe, and a 4-
wire function, such as Ω4, is
selected. When you perform a DMM close operation on Channel 1001, the
Series 3700 closes Channel 1001 and Channel 1911 (backplane isolation relay)
to connect the channel to DMM Input. The Series 3700 also closes Channel
1011 (the paired channel) and Channel 1922 (the sense backplane isolation
relay) to connect the paired channel to DMM Sense.
Figure 4-4: Four-wire function
NOTE
Refer to the Instrument Control Library (ICL) in the Series 3700
Reference Manual for more detail on each ICL command.
