psp communication mechanism

[Brian001]

in our project, we use SVE as opc client to get real-time data

from a third-party opc client(through shared variable data

binding),meanwhile SVE also act as opc server, distribute the

real-time data to  other pcs, see attached picture. but SVE behavior seems stranges,

sometime real-time data can be distribute to other PCs very

fast, sometime very slow, take a few minus, and even worse, PCs

tatolly can not get the real-time data. the SVE seems very

unstable

search for ni website, can not find anything about the psp

communication mechanism, what's psp service locator, how the

psp works?

how to solve it?

thank you very much

[mikeporter]

This could be a situation where the core problem is a new technology that isn't ready for "prime time". I remember when data sockets first came out they sounded wonderful. The only problem is that they didn't work very well. Over time the problems were worked out and data sockets are now a usable technology. Perhaps you should consider restructuring the application to utilize more proven techniques like VI Server and User Events.

Mike...

[MattP]

If you're looking for more information about PSP and shared variables, I highly recommend the document Using the LabVIEW Shared Variable on our Developer's Zone.  It should get you up to speed on how the communication happens, but if you find other questions, please let me know and I'll be happy to share the information.  If you find any problems with the communication, please let us know about it - continual feedback helps us identify not only the areas of the product that we need to address, but also what test cases we may not have considered when designing the product.