Routing and Faulting Custom Device Operation Order

Updated Jul 6, 2026

Reported In

Hardware

  • PXI-2510

Software

  • VeriStand Custom Devices

Issue Details

  • I am trying to use the PXI-2510 to perform fault testing such as short to ground on a system. I configured each state with reference to this document, but for example, how do the relay switches behave when transitioning from a No-Fault state to a Short to Ground state?
  • When using a VeriStand custom device with a PXI-2510, what is the sequence of the relay switch operation?

Solution

You can use the Routing and Faulting custom device in VeriStand with FIU modules such as the PXI-2510 to transition between defined states by changing the routing channels.

 

For example, when you transition from a state where ch0 is connected to dut0 (No Fault) to a state where busa is connected to dut0 (Short to Ground), the system performs the switching sequence automatically.

First, the connection between ch0 and dut0 is disconnected, which opens the switch between these nodes. Then, the connection between busa and dut0 is established, closing the corresponding switch.

 

There is an approximate delay of 500 µs between disconnecting ch0dut0 and establishing busadut0.

 

This behavior is the same when you connect busb to dut0 instead of busa.

Additional Information

The source code for the Custom Device Routing and Faulting is available on our GitHub page.

 

Details such as the switch operation sequence are described in the user guide for your custom device.