Alias is not stable

[sarath.mandapati]

Dear Board,

We are using power supply unit from Lambda connected to COM port 1. In NI MAX we have aliased it as Lambda instead of COM 1.

It is for an End of  Line system . so the PC runs at Max 18 hours a day..

The Alias name is not consistant. It some times renames it self back to COM 1. So what could be the possiable reason for that ?

And how to resolve it ?

Thanks and Best regards,

Sarat

[JB]

This annoying problem also appears from time to time on some of my applications. In my case, it is with the alias of an USB printer.

Unfortunately I have no solution so far.

[Henrik_Volkers]

Had a similar problem in my former company.....

I wrote a test vi that runs at powerup ..  the VISA search/find can be configured to get a list of the serial devices. You can search that list for your alias using the properties and match pattern) , if not found the alias failed and you probe the list for the lambda powersupply  (like a IDN?, depends on the commands supported and maybe other devices connected to other ports) 

annoying, I feel with you...

[sarath.mandapati]

Dear Board,

I found One solution for this issue with greate support from NI support team. 

I have attached a VI which works in my case.. 

May be with little modification in the vi it will solve your issues too.

Thanks and Best regards,

Sarat

ps: Credit goes to NI support team.

[Ambar_NI]

I am glad your issue has been resolved

AE

NI India