Dear Mülly, Am 28.11.2018 um 16:22 schrieb muellytest1000-dev--- via sigrok-devel <sigrok-devel@lists.sourceforge.net>: > The commands send to the device are adopted from the document "METRAHIT > ENERGY – Interface Protokoll (MaBe 2010-08-27)", which can be found on the > net. I requested the specific Protocol for the ULTRA from GMC, but no > response. > > Now to the question: Obviously there is no support yet for ULTRA BT in > sigrok. What would be the nearest starting point to get startet with some > implementation? > I guess Agilent-DMM driver? Any other ideas?
I am the author of the existing Gossen Metrawatt drivers for the Metrahit 1x/2x family. This was just a hobby, I don’t have anything to do with the company. I also started writing a driver for more up-to-date Gossen Metrawatt models, but don’t have time to work on sigrok any more and have nothing worth giving out yet. You can find some information on the protocol families at https://sigrok.org/wiki/Gossen_Metrawatt . If you are going to write a driver, it should be no problem to make it work with the Metrahit 27I, 27M, 28C, the Metraport 40S and the complete Starline Series, which includes your multimeter. If I remember correctly, the protocol is roughly oriented at SCPI, but proprietary (escape mechanism for some bytes, not conforming to some SCPI „standard“ conventions), so it might be not that useful to start with an existing SCPI-based driver that uses sigrok’s SCPI support functions. Please note that currently there is a significant disadvantage of using sigrok for multimeters: If I’m still up-to-date, there is no way to store timestamps within the data and process it in PulseView, etc. So if the multimeter delivers the data in irregular intervals, like common in auto-range mode, you loose the timing information. Gossen Metrawatt offers LabView drivers for your multimeter. Bye, Matthias _______________________________________________ sigrok-devel mailing list sigrok-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sigrok-devel
