Agilent Technologies L4400 User Manual
Page 95
Operating and Programming
3
L4400 User’s Guide
83
This handshake sequence continues until all channels are scanned and
the programmed number of passes (sweeps) through the scan list are
complete.
Channel closed (out)
Gnd
Channel advance (in)
VM Complete
(Out)
Ext Trig
(In)
L4421A
DMM
5
1
9
6
HI
LO
I
LO
HI
1
5
6
9
ABus1-Hi
ABus1-Lo
Figure 3-14. External Scanning Using the L4421A and a DMM.
• In this configuration, you must set up a scan list to include all
desired multiplexer channels. Channels which are not in the list are
skipped during the scan.
• You can configure the event or action that controls the onset of each
sweep through the scan list (a sweep is one pass through the scan
list). The selected source is used for all channels in the scan list. For
more information, refer to
• You can configure the event or action that notifies the instrument to
advance to the next channel in the scan list. Note that the Channel
Advance source shares the same sources as the (scan) trigger.
However, an error is generated if you attempt to set the channel
advance source to the same source (other than IMMediate) used for
the scan trigger.
• You can specify the number of times the instrument will sweep
through the scan list. When the specified number of sweeps have
occurred, the scan stops. For more information, refer to