10-24-2025 05:16 AM
Hi,
I'm trying to stream data from DL950 yokogawa using the API dll they provide "DL950ACQAPI64.dll". I'm able to import the dll and create all the subvis belonging to it. So far so good, but I can't get it to stream any data. So I have a simple question has anyone used this dll and mad it work, in that case I appreciate some input. There is not much documentation regarding this. Previously I used the driver provided by NI for runing the scope remotely and it works fine, unfortunately you can't use it to stream data.
Best regards
ahmalk
10-24-2025 12:30 PM
I've used the hardware but not that specific API.
How certain are you that the API "unlocks" some special "streaming mode"? It's entirely possible "streaming" really just means "using normal queries to get waveforms automatically in the background".
Also, I believe the API comes with a "regular" DLL as well as a .NET DLL. Have you tried using the .NET DLL to see if it's easier to figure out?
10-27-2025 07:35 AM
We were looking for a real-time streaming capture of data from these DL950 devices. Contacting the representatives, we found that that was not possible. Now we run the units then download the data.
10-28-2025 03:05 AM
According to the API manual it can be run in free run mode. A simple example they provide is ini-open-start-stop-close-exit. the example is written i C++.
Best regards
Ahmalk
10-28-2025 03:08 AM
It's not not possible to do it with labview or not possible at all. We bought that just for this reason and according to our representatives it should be able to do that streaming. There is two way to do that either directly or via flash. Our unit do not have the flash option.
Best regards
Ahmalk
10-28-2025 03:13 AM
I forget to reply to the .net suggestion, I'll give it a go.