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HP E1312A/E1412A Multimeter Application Information 57Chapter 2
Synchronizing the
Multimeter With a
Switch Module
This program example demonstrates how to synchronize the multimeter
with a switch module. For the HP E1412A it uses the TTL triggers from the
VXI backplane to trigger the multimeter and advance the channel scan list.
The example uses the HP E1476A 64-Channel Multiplexer Module but will
also work with any HP switch module as long as the channel list is specified
properly. Figure 2-2 illustrates the C-size set up. The switch module
(multiplexer) and multimeter use the VXI backplane to communicate the
trigger and VM Complete signals to each other to synchronize the scan.
Figure 2-3 shows the HP E1312A set up using external triggering. B-size
command modules do not support VXIbus TTL triggers.
Figure 2-2. HP E1412A Multimeter and Switch Module Synchronization
Figure 2-3. HP E1312A Multimeter and Switch Module Synchronization