# Has anyone experience with Vimar (by-me)? **URL:** \ **Category:** Home Automation\ **Created:** [August 23, 2018, 11:12am UTC](https://community.openhab.org/t/has-anyone-experience-with-vimar-by-me/49925 "2018-08-23T11:12:37Z")\ **Posts on this page:** 4\ **Page:** 2
**Author:** ![Jens1975](https://community.openhab.org/letter_avatar_proxy/v4/letter/j/6bbea6/32.png) [@Jens1975](https://community.openhab.org/u/Jens1975)\ **Post date:** [May 23, 2021, 4:02pm UTC](https://community.openhab.org/t/has-anyone-experience-with-vimar-by-me/49925/21 "2021-05-23T16:02:30Z")
Hi Mario, are you still active here? I am using the “new” Vimar Gateway and want to connnect it to my openhab3. Can you give me some basic information? I already know that I have to use the port 443 and that Vimar is using the hexadecimal system (in case of using the by-me-system). Which system are you using? by-me or the KNX-system? Best regards, Jens ---
**Author:** ![Jens1975](https://community.openhab.org/letter_avatar_proxy/v4/letter/j/6bbea6/32.png) [@Jens1975](https://community.openhab.org/u/Jens1975)\ **Post date:** [May 23, 2021, 6:53pm UTC](https://community.openhab.org/t/has-anyone-experience-with-vimar-by-me/49925/22 "2021-05-23T18:53:22Z")
Hi Mario, for your information: Within the Vimar’s “View App”, I can see the “KNX”-messages: e.g. B4 10AB 0C38 80 00 80 A5 byte: 12 3456 7890 12 34 56 78 Byte 1 → I don’t know. 2 → I don’t know. 3 bis 6: → address of the sending item (here: my gateway) → I expect normally “Area, Line, Member” in case of KNX (each with 2 bytes 7 bis 10: → target address (begin with “0C” → KNX-format should be equal to th sending address: Area, Line, Member (KNX: each 2byte) 11 +12: → I don’t know. 13 + 14: → I assume that this will Vermutung: gehört zu 15 und 16 oder zu 11+12 ? 15 + 16: → from an italian homepage: 81 = switch on (= up), 80 = switch off (= down) → or do I need only the byte “16” 17+18: → I don’t know. I can see these bytes in some messages. 19: → I don’t know. I can see these bytes in some messages. 20: → last byte: italian homepage: check sum (similar to KNX) How about your method and process to use Vimar by openhab? Best regards, Jens ---
**Author:** ![Mario084](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/87869e/32.png) [@Mario084](https://community.openhab.org/u/Mario084)\ **Post date:** [May 29, 2021, 5:43pm UTC](https://community.openhab.org/t/has-anyone-experience-with-vimar-by-me/49925/23 "2021-05-29T17:43:17Z")
Hello Jens, sorry I was on vacation - so now I´m back and yes I´m still active in this community and also working a lot with Openhab 3 these days. I´m using Vimar By Me System - I bought it in 2012. So access it from openhab I bought a standard KNX IP gateway for round about 130 €. I guess this will also work for your newer version of the Vimar bus. Br, Mario ---
**Author:** ![Jens1975](https://community.openhab.org/letter_avatar_proxy/v4/letter/j/6bbea6/32.png) [@Jens1975](https://community.openhab.org/u/Jens1975)\ **Post date:** [July 3, 2021, 7:55pm UTC](https://community.openhab.org/t/has-anyone-experience-with-vimar-by-me/49925/24 "2021-07-03T19:55:29Z")
Hello Mario, thanks a lot for your information. I have the new Vimar-Gateway. Therefore, I can see the messages on the bus system directly. And you are right. Your solution should also wok in my system. Unfortunately, I’ve already ordered an USB-interface. We will see … 😉 But nevertheless, my next task is to improve the (non-existing) communication between my heatpump (Viessmann) and the SMA-photovoltaic-system (read out via Modbus-binding). Cheers, Jens [Previous page](https://community.openhab.org/t/has-anyone-experience-with-vimar-by-me/49925.md?page=1)