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Thanks all for these great and detailed responses! I'm definitely aware our current offering has a lot of areas of improvement. MarkCG - Yes, I still have all the notes from our interview, but appreciate the summary reiterating what we talked about. PiDi- Thanks for your summary of your system. I'm glad to hear you like LabVIEW, though understandable that the lack of machine control and industrial automation is disappointing. NXG is where a lot of investment is now, so most likely (and I can't say anything definitively at this point) any improvements in this area will happen there

Note: you can also do this (using the JSONpath for all array elements) because here one is specifying the element of the array (with default) rather that an empty array:

Are you using LabVIEW 7.1????? If you use a newer version this should not fix any problem as this specific problem was actually fixed in LabVIEW 7.1.1. The problem was that the LabVIEW enumeration of directory entries assumed that the first two returned entries were the . and .. entries. Since LabVIEW 7.1.1 the Linux version doesn't have that assumption (the Windows version still had at least until recently and that can cause different problems when accessing a Samba mounted directory).

Well resources are really a MacOS Classic thing. LabVIEW simply inherited them and implemented their own resource manager so they could use it on non-Macintosh systems too. So that explains why the ResTemplate page seems to nicely describe the LabVIEW resources. It doesn't, it only describes the Macintosh resources and many of them are used in LabVIEW too. As to the resource templates, I looked at them way back in LabVIEW 5 or 6 and my conclusion was that most of them described the same types that a Macintosh resource file would describe too, but NI mostly left out the LabVIEW specific ty

I have not used this particular client, but have done something similar with AWS and MQTT and a different client. I wound up stripping out all the OpenSSL stuff for the new native LabVIEW tools. Here is what worked for me during some initial tests. It may not be perfect, but hopefully it's a start at least. After that it's regular TCP Read/Write.

Hello everybody, Thank you for this very interesting topic. I need to connect as a client to a broker with a certificate. Is there someone that use the LV 2020 TLS with this client LV-MQTT ?

I will complete the survey but wanted to add here as well. I use EtherCAT primarily with 3rd party slaves and only use NI hardware\software. I have limited time resources and prefer to stay within one environment, so I choose NI software whenever I can. I just don't have time to learn all the 3rd party tools. Maybe others can help me here. if anything, at least this thread has brought other ECAT experts to the surface, I can DM for help 😉. I have come across a few limitations but I have been able to work around them because I have no choice. One thing that is frustrating is there is no wa

That article is available on Web Archive.

Hi Jim Kring, Would you post the solution here? cos, the link seems expired!!! Thanks.

Buried inside LabVIEW's resource files are several resources with the type "TMPL". They contain information that looks like it could be incredibly helpful in figuring out the structure of many of LabVIEW's internal resources. They're in a binary format, but it's quite trivial to parse, so I quickly put together a tool for loading and viewing them. Template Viewer.zip For more information, see this page, which appears to describe the same format: https://www.mathemaesthetics.com/ResTemplates.html (Change the URL from https to http; the forum won't let me add http links for some reason

Okay, well thank you very much regardless! I seriously appreciate the effort you both put in!

Hi Zofia, In short NI's implementation of EtherCAT functionality is not on par with other NI tools as I've experienced. I'll try to explain on this as best I can. NI only Supports CoE, CANOpen over EtherCAT. This is just fine as I (perhaps most devs ) has CAN/CANOpen experience. This is not an issue as I stated but I thought to add just so we know that we are talking only about CoE in following points below. NI's Server implementation is not ready for Non-NI hardware. It seems the server was solely designed with other NI-Slaves in mind. Connecti

Trying to get at the data pointer of control objects, while maybe possible wouldn't be very helpful since the actual layout, very much like for the VI dataspace pointer has and will change with LabVIEW versions very frequently. Nothing in LabVIEW is supposed to interface to these data spaces directly other than the actual LabVIEW runtime and therefore there never has been nor is nowadays any attempt to keep those data structures consistent across versions. If it suits the actual implementation, the structures can be simply reordered and all the code that interfaces to external entities includi

I'm still investigating things, but now I start to think that it's kinda complicated task. I've found no easy-to-use function in LabVIEW internals to get that pointer. And there's another difficulty - the refnum should be matched with the object, it relates to. I see no any refnum info in Heap Peek's object (and its DCO) properties. There's UID in the very first string, so that potentially could be used to identify the object needed. In that case the list of all VI objects should be retrieved (from OH or DS Heap, I guess) and each object should be analyzed to know, if its UID matches our one.

Maybe; I've never played Factorio. My question might apply to that too.

If we are talking about automating factories, isn't Factorio the game of choice, rather than Minecraft? 😋

As we all know, automating industrial systems is a huge use case for LabVIEW. As it happens, building these types of systems in Minecraft (with varying levels of realism) is a popular activity among players of mod packs like Feed The Beast, which add a lot of high-tech craftables to the game. Which makes me wonder: has anyone tried using LabVIEW to control factories in Minecraft? You could probably set something up pretty easily with a mod like ComputerCraft or OpenComputers, which allows for opening network connections. Just write a program in-game to communicate with something in LabVIEW and

Thanks! I'll be sure to post here if I find a way too. Might be able to do some cool stuff with the VI data space as well, once I read up on what that's about. Cool to see more people interested in exploring LabVIEW's attic

This gives you a pointer to VI Data Space, not to the object's own space. Well, I see what you want to obtain, so I recheck later, whether it's possible to retrieve a pointer to the object itself.

Same story here. We've just started to standarize on Beckhoff. EtherCAT is nice medium for realizing distributed systems. We use EP boxes for distributed IO (just as your case - a great way to reduce wiring; add IO-Link sensors and actuators to the mix and you save A LOT of work with the system assembly and testing and gaining unlimited flexibility). EL terminals for the control cabinet - you can basically build any system capabilities you like, and add anything any time in case you'd forgot. Also, you get safety-rated terminals and boxes (and you can build distributed system with that, no nee

That's very interesting, thanks! However, I tried it and it doesn't give me the pointer I needed. Unless I'm doing something wrong?

Do you need VI Data Space pointer? If yes, then you could use GetDSFromVIRef internal function - check my samples with ReadDCOTransferData / WriteDCOTransferData calls. That function is available in LabVIEW starting from 2009 version.

Hi Zofia we talked before but I'll all add my bit here to see if anyone else has comments. EtherCAT is very powerful but so many of those features are held back by the NI EtherCAT master. For example you can get diagnostics on each individual link slave to slave but NI doesn't show that. No official support for topologies other than line or ring. I have gotten it to work with an EtherCAT junction but nothing displays correctly in the project. No hot-connect groups like with TwinCAT. Configuring slaves with CoE is difficult. I use TwinCAT for that. Just the bare minimum is there in the master t