Old Visa Open vs Visa Open

[Troy12]

Hi,

I've a question regarding 'Old Visa Open' (LV 6.1) vs 'Visa Open' (LV 8.0).

On upgrading LabVIEW code from version 6.1 to 8.0, I noticed 'Visa Open ' in LV 8.0. The only difference I can
find is there is no string reference for the resource name.

What should I use for the resource name in 'Visa Open' for LV 8.0?

Thank you.

[TiTou]

Hello Troy12,

I don't have LV8 but only 7.1.1 but I assume "VISA open" is the same in both versions. Indeed, VISA open expect not a string but a "VISA RESSOUCE NAME" that you will pass further to read/write/close functions.

just remove your sting constant (the one you had in LV 6.1), right click  on the terminal and chose "create" >> "constant" you then should see this  :



Then choose the port on which your device is connected and it should work 😉

Let me know (with screen-shots if possible) if you have any problems

Message Edité par TiTou le 04-10-2006 08:12 AM

[rolfk]

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@TiTou wrote:
Hello Troy12,

I don't have LV8 but only 7.1.1 but I assume "VISA open" is the same in both versions. Indeed, VISA open expect not a string but a "VISA RESSOUCE NAME" that you will pass further to read/write/close functions.

just remove your sting constant (the one you had in LV 6.1), right click  on the terminal and chose "create" >> "constant" you then should see this  :



Then choose the port on which your device is connected and it should work 😉

Let me know (with screen-shots if possible) if you have any problems

Message Edité par TiTou le 04-10-2006 08:12 AM

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You can also wire a string with a valid VISA resource name to the VISA resource name input of VISA Open. LabVIEW will do an automatic conversion for you. This can be handy if you store the VISA resource to a configuration file for instace which of course uses strings and not VIS resource datatypes.

Rolf Kalbermatter