Application Programs 91
MPS Set Up
Module in slot 0:
The module is connected to + 5 V on the DUT.
The initial voltage setting is 0 V.
Set the voltage mode to List.
Download the voltage List.
Set the List to be trigger paced.
The module listens for the computer to send a trigger command. Upon receipt of the trigger command, the module outputs
its next List point.
Also upon receipt of the trigger command, the module generates a backplane TTL Trigger.
Module in slot 1:
The module is connected to + 12 V on the DUT.
The initial voltage setting is 0 V.
Set the voltage mode to List.
Download the voltage List.
Set the List to be trigger paced.
The module listens for a backplane TTL Trigger.
Upon receipt of a trigger, the module goes to its next List point.
Module in slot 2.
The module is connected to - 12 V on the DUT.
The initial voltage setting is 0 V.
Set the voltage mode to List.
Download the voltage List.
Set the List to be trigger paced,
The module listens for a backplane TTL Trigger.
Upon receipt of a trigger, the module goes to its next List point.
Variations On This Implementation
1. A current List could also have been executed by the module so that for each voltage point, a corresponding current limit
could be programmed.
2. Overcurrent protection could be enabled to protect a faulty DUT.
3. The module could generate an SRQ when it finishes changing voltage for each point in the List based on the STC (Step
Completed) status bit, which indicates when the module has completed executing the next point in the List. The SRQ
could tell the computer to get a measurement from the measurement instrument.
4. The module could be told to output its next List point in response to an external or backplane TTL Trigger. (see next
application.)