Trigger PXI6571 to PXI4162

[EdTorresJr]

Hello, 
I am working on to trigger SMU to start current capture by a pattern burst? Would you be able to give me sample on how to do this. 

[santo_13]

Please elaborate more, do you want to capture current at certain locations during a pattern burst of profile the current through the whole pattern burst?

[EdTorresJr]

Hello,

Thank you for responding. Correct. What I am planning to do is if there is a opcode that I can use on digital pattern editor such that when I burst a pattern I can automatically send a PXI trig measure trigger to SMU to start current capture. The reason for this is I need the exact timing and I am capturing really small current pulse. Just wondering if there are examples. 

[santo_13]

Here is the high-level concept. See if you can translate this into code,

For this example, let us use event0, PXI_Trig0 and 6571's alias be DPI_6571

• On the NI-Digital side,
  • Use `pulse_signal(event0)` opcode in the vector of the digital pattern
  • Use NI Digital API to configure Export Signal to route the patternOpcodeEvent0 to PXI_Trig0
• On the NI-DCPower side,
  • Configure the measure trigger source to `/DPI_6571/PXI_Trig0` using Configure Digital Edge Measure Trigger
  • Configure MeasureWhen property to `OnMeasureTrigger` using the property nodes
• Order of execution
  • Configure the SMU, initiate to start supply
  • Configure the 6571 and burst the pattern
  • After pattern execution completion, use the Fetch Multiple VI to read the measured samples from buffer
  • You need revert back the MeasureWhen property of SMU for your regular onDemand measurements to work or it will look for a trigger to measure