labview drivers for Prisma QMS

[nottilie]

HI

The OPC server is already included in the Prisma+ hardware so you don't need an extra OPC server.

But you need a tool to access the OPC server either via datasocket (not very good for many opc items), or you can use LABVIEW DSC module (there it is not possible to build a stand alone application (developement system only) without extra licence fee.

We use the .NET toolkit from softing within labview. (moved from the Softing ActiveX toolkit).

Then you access the Prisma + build in OPC server via these .NET functions.

Not very easy but it works very nice.

Hope this is fine

Best regards

Gernot 

[Mirash]

Thanks Gernot !!!

We have the DSC run time licence already for this application. So as you suggested , NI OPC client will be a better option.

Thanks for your timely response.

Regards,

Mirash 

[Mirash]

Hello Gernot,

Now I have the PrismaPlus Units to try out my code.

I am facing some issues now.

We have created two OPC client instance for the the two available Mass Spectrometer.

Now, In my program, I use psp data socket connections to access the tags. My problem is that, I am able to read the filament status, Current Filament etc. But the Datapump which gives the measurement data does not return any value.

I hope you can help me to solve this issue.

looking forward to hear from you.

Mirash

[nottilie]

Are you sure your measurmement is started else you will not have any datapump events. I know this is a minor answer but sometimes these are the little problems.

I would also recommend to use a simple OPC client as NI OPC explorer or the Softing OPC toolkit (evaluation version) which has a nice OPC client included where you can write and read you items to see if it works in principle.

If this works there is a strange behaviour in your LV developement system eventually related to your coding.

Best regards

gernot

[Mirash]

Hi ..

Thanks for your quick reply.

I had the Same suspicion initially.

Then I used NI OPC client to watch the variables.

When I configure a measurement, I can see the Buffer status toggling. But the data pump is not reading anything.

Strange thing is, if I replace my psp URL with OPC URL, everything works fine.

Do you have any Idea how I can talk to two mass Spectrometer at a time without NI DSC.

Regards,

Mirash

[nottilie]

Dear Mirash

I have never seen such a problem, but we don't use DSC to control the OPC items of the quadrupole.

We are using a third party toobox from Softing. (Softing toobox .NET) and use the labviews .NET environment to call the .NET commands came with the toolbox. It is so to say a OPC developement platform for .NET.

Therefore it is a little bit hard for me to know the details about DSC (PSP vairables) as we don't use it.

Best regards

Gernot