03-29-2012 09:04 AM
I have a Omicron CMC 256+ and the drivers installed for labview. Im trying to create a vi that will allow me to communicate with the Omicron, however I dont understand how to use refnum . Can someone help me with this please.
Solved! Go to Solution.
03-29-2012 09:17 AM
Those drivers were written by Omicron, not NI, so you'd need to confirm this with them. My guess is that you need to select the ActiveX class once you install their Test Universe Tool, which is required to use those drivers.
07-20-2012 12:05 AM
There is also a new LabVIEW PnP driver for CMC 256+ which wraps OMICRON's CM Engine.
http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=19083
06-16-2026 12:56 AM
Hi, unfortunately this address is not providing the drivers. Although the page is up but it says "ni.com is currently experiencing unexpected issues. Some services may be unavailable at this time."
any idea how to download the drivers?
06-16-2026 01:56 AM
Also, you'll need to have a valid CM Engine licence for your CMC device in order to use the drivers. You can check this in Omicron License Manager.
06-16-2026 01:57 AM - edited 06-16-2026 01:58 AM
The link works on my side, here's the LabVIEW 2018 version
Driver version: 1.2
06-16-2026 02:03 AM
One last thing, you can find the CM Engine reference manual here "C:\Program Files (x86)\OMICRON\Test Universe\Doc\CMEngine.pdf" (at least with Test Universe 5.0) if you need low level control.