aparab,
I believe I've gotten this working. The primary issue was with passing the Time Stamp data type from the DLL into TestStand. The Time Stamp is not well-suited to being passed in a DLL; see this forum post for more details. I changed your LabVIEW VI to use a string for the timestamp, although a numeric double might be easier to work with in TestStand depending on what you are trying to do. After making this change and rebuilding the DLL, everything worked properly.
As a side note, you probably need to change the numeric format of your custom data type on the C Struct Passing tab of the custom data type properties. The numeric values in your DLL header are defined as int32_t values, which are signed 32-bit integers. Your custom type seems to have these numbers defined as 64-bit real numbers, so your actual numeric data will be very incorrect unless you change the types to be 32-bit signed integers.
I hope this helps, and let us know if you continue to have trouble with it.
