assessment of suitability of LabVIEW for industrial machine control

Greetings,

I'm trying to determine if LabVIEW and related equipment are able to meet several organizational needs - which is a direct control of industrial machines as the main driver interface.  Specific IO is quite simple and not time critical, with the exception of a few security control.

I'm trying to find information or use case examples where LabVIEW has been used in a Setup to autostart when the user/operator is ONLY presented with the Labview VI that acts as the user interface of the machine - without access to the underlying operating system - whether it is * NIX or Windows.

Most of what I've found so far seems should be directed to LabVIEW providing a global monitoring environment, where the individual machines of control is managed using dedicated plc and HMI.  I would like to know if LabVIEW and related products can be used in place of traditional PLC and HMI hardware.  If not, what are some of the existing approaches for fusion environments?

If anyone has experience or pointers to information, I would be grateful.

See you soon,.

Rob

Industrial control, we do all the time with LV the first thing to understand is that it is a language of programming like the others - what will happen is what you write. Nothing more, nothing less.

The second thing is that there is no "related material". LV code can run on a number of platforms, but the actual IO modules you use could in principle be all devices which you can talk to (which means that they have dedicated drivers or memoranda of support that you can use, such as Modbus).

The third thing is that it is possible to use a desktop for that OS (we do regularly), these systems are not designed for this. Beyond security considerations you mentioned, that must be implemented in dedicated hardware anyway, you should always accept that it is running on a desktop OS means there is a chance of things occur occasionally because preempted or your machine may get stuck in total, etc. For systems that we do, it is generally quite acceptable (and in fact is not often), but it's something to know. We usually leave the UI of the BONE in place, but it is also possible to replace the application from the shell with your own application, and then you will not see the classic interface at all (although users who know what they're doing can access if they really want to). There are different versions of the OS that may be preferable to something like that, but I have no experience with it.

An obvious point to raise is that NEITHER has a hardware PLC-like dedicated that can run your code of LV and is actually designed to do this. The most obvious is the cRIO devices family. These work exactly like robots, with the exception that they are significantly more efficient and much more expensive.

In regard to the mix of things, the classic way is to have the code on the PLC information and using something like Modbus, exactly as interactions with HMI systems jobs. LV is not a HMI program, however. It has some advantages, like being able to encode and do custom things and a few drawbacks, like not being able to do the UIs of basic or logging as easily. There is an add-on for LV that is supposed to add a bit of this, called the DSC module, but I don't really have experience with it. The decision on whether to use a program to HMI or code your own (in BT or any other language) should depend on the system and the implementer.

Again, LV is like any other programming language. You can control applications in C, but you must know C and build the relevant parts. Goes same for LV - you will need to know and to be able to write specific code you want. NOR has some reference designs, they come out on the subject, but I never watched their close collaboration. You can look at the table at the bottom of this article to see this - http://www.ni.com/example/30331/en/

Tags: NI Software

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