I am trying to get the Testo 176P1 talking with labview 2011. I have downloaded the TestoToolbox and also got an update from the German support with a Toolbox2.exe installer. Anyhow I am unable to get through the initialisation process with the tcddka.dll from Testo (V1.2). I do have a simple question: What device name do you feed to the Init procedure? 1) the name you can see in devicemanager? in my case "testo 175-176-2010" --> Exception occured in tcddka: Invalid DeviceName in testo serial init.vi 2) but "testo175-176-2010" gives me --> "Exception occured in tcddka: The instrument is not responding in testo serial init.vi" 3) or the general "testo175-177" results in "Exception occured in tcddka: The instrument is not responding in testo serial init.vi" Seems I did set the COM-port correctly! + the testo software is able to connect with the device without a problem. in earliers posts about a Testo Gas detector, I saw characters being added and modifications being made in comsoft.cat file... ? Any suggestions are welcome!

I managed to get this "Comfort Software basic" running on a home computer and changed the Operating mode from "Logging" into "Measure", see below image This can not be donne with the lateste Version 5 software, you need V4 which I did not find on the website but received from the helpdesk in Germany. This resolved the problem and now I can acquire data from the device with the earlier attached vi!