only interested in looking into fieldpoint rt target occasionally labview rt 7.1

[gar06]

Hi

I am revisiting an old application with Labview rt 7.1 on fieldpoint 2010 hardware

I have embedded the program as a standalone application that starts when the hardware powers up, connected to a series of control buttons (hard inputs) and outputs to control a servo motor and pneumatic actuators (hard outputs)

I would like to look into the target to monitor analogue inputs occasionally. However I do not want to have any problem with the embedded program if the labview is not connected from the host PC, for example if the PC is powered down or if the network is lost!

Can someone point me in the right direction, there just seems to be too many ways to try this,

In summary

Labview rt 7.1

Fieldpoint 2010

Embedded standalone application

Want to use a host program to look at 3 AI channels and set 2 DO channels occasionally

Embedded program must work even if host is not connected

This idea of a shared variable looks like the easiest to implement but I did not find this on LVrt 7.1,

Reluctant to upgrade everything!

Best Regards

G

[Kurt_NISalesEngineer]

Hi,

Thanks for posting your query on the National Instruments forums. Shared Variable technology was introduced with LabVIEW 8 in subsiquent releases the technology just gets better. Having worked with version 7.1 and the more recent releases I would definately recomend upgrading. Another way to think about it is - there have been roughly 4 years between 7.1 and 8 release so your getting 4 years of RnD efforts with that upgrade. The latest release 8.2.1 is awsome packed with tonnes of technology. Infact why not download it for free on out website and try it out for 30 days in evaluation mode?

Have you looked into powering down the controller and perhaps pushing the driver software onto the controller again via MAX - i.e. format it etc. Have you got firewall enabled on the host machine? Is it accessed over a network? Is it cFP-2010 that you have or is it just the old FP-2010? Have you reinstalled the drivers - obtained the latest version?

Kirtesh Mistry
Applications Engineer
National Instruments UK  & Ireland.

[gar06]

Thank you Kirtesh

Your suggestion to upgrade makes alot of sense. However I decided to try using the RT communication wizard to get the communication between the PC and the fieldpoint target.

It has worked well, making a shared variable for each of the controls/indicators that I have put on the front panel. Now I have a stand alone application that launches on startup of the target, which means that the machine that my fieldpoint is controlling is independant of any PC.

I can also connect the PC via ethernet to the fieldpoint controller and visualise/ collect data, turn on and off some outputs (for example during maintenance). It has worked out quite well.

Nothing like a deadline to focus the mind

Thanks

G