fp 2015 - lan

[Jacouille]

Hello,

I would like to have two PC to show & control (a local PC and a remote PC) for the same module Fieldpoint.

If Labview is installed on both PC and the entrance module is an FP-2015, by working on the local network and an hub, I think that it is possible.

Can you confirm me these point of view ?

Thank you

[RavensFan]

I think we are doing what you are describing.

We have a cFP-2120 which is the main monitoring and control system for a test stand.  It is on our LAN.  We have a nearby PC also on the land (actually a PXI system) which is providing the front panel user interface.  It sends control commands (like start, stop, direction, speed) to the cFP through shared variables.  It monitors temperatures, speeds, oil pressures, and stuff like that.  We have set that up for remote web panels.  Other PC's on the LAN are able to log onto the web panel hosted on the PXI machine and request control of the front panel so that they are effectively in control.

Of course with remote web panels, only one computer is allowed to be in control at once.  It is conceivable that you could have two separate PC's running identical front panel configurations, both sending commands, or reading indicators from the cFP.  But if you do this, you need to have a scheme so that you aren't sending conflicting commands, like one panel telling a machine to run forward while the other tells it to run in reverse.

[demux]

Hey Jacouille,

What Ravens Fan says is correct and the remote Front Panel is actually developed to do what you want to.
You can find a full description of how to implement it here:

http://zone.ni.com/devzone/cda/tut/p/id/2800

The principle is that you develop a html file based on the front panel of your application. (all automated, check the link)
You place this on the fieldpoint itself and from then onwards you can 'surf' to the frontpanel of the fieldpoint through the internet. Who is allowed to take control and who is only allowed to take a look at the status is all upto you.

LabVIEW does not need to be installed on the system that you use to 'surf' to the fieldpoint, this system only needs the (free) LabVIEW runtime engine which will save you the cost of a development license. How many people are allowed to connect to the RT target at the same time however is limited depending on which version of LabVIEW you have. You can find more information about that here:

http://digital.ni.com/public.nsf/websearch/CC65B8E1C3C45D0086256CCD005A1F76?OpenDocument

Regards,
Wouter
National Instruments