# Utilisation uniquement entrée 1c in multiplus 2 **URL:** \ **Category:** DIY\ **Tags:** cerbo\_gx, multiplus-ii, ess, french\ **Created:** [26 January 2025 19:55 UTC](https://community.victronenergy.com/t/utilisation-uniquement-entree-1c-in-multiplus-2/20076 "2025-01-26T19:55:16Z")\ **Posts on this page:** 1\ **Showing post:** 36
**Author:** ![Q.x](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/q.x/32/737_2.png) [@Q.x](https://community.victronenergy.com/u/Q.x)\ **Post date:** [5 April 2025 10:23 UTC](https://community.victronenergy.com/t/utilisation-uniquement-entree-1c-in-multiplus-2/20076/36 "2025-04-05T10:23:19Z")
La seule chose que je vois est l’intitulé du profil CAN-bus. Sur deux installations que je contrôle, il est sur “CAN-bus BMS **LV** (500 kbit/s)” alors que chez toi il est sur “CAN-bus BMS **HV** (500 kbit/s)”. C’est étonnant car sur aucune de ces installation ce profil, HV, n’apparaît. HV serait le nouveau protocole de Pylontech. As-tu le profil LV dans liste ? Regardes sur les 2 ports VE CAN 1 et 2. **Edit** : Tu as déjà essayé LV et rien ne fonctionne. As-tu regardé l’état du réseau ? Peux-tu mettre une copie d’écran lorsqu’il est en HV. Sur les sujets ci-dessous, ils suggèrent de mettre à jour le GX pour résoudre un bug concernant le VE CAN 2. > [@Issue with Cerbo MK2 BMS LV Can set-up](https://community.victronenergy.com/t/issue-with-cerbo-mk2-bms-lv-can-set-up/16078): > > We have an installation using a CanBMS protocol to send data for display. On the test bench it works perfectly. In the field on separate machine, we have been banging our heads against the wall. The system has a MG BMS, Quattro, and BMV use for Solar power generation. That works fine on the Ve.Can. We have another System we want to display in the Device list. Data is sent using the CanBMS protocol. The test bench has a “Old” Cerbo with BMScan port and Ve.Can port. data is displayed as e… > [@Pylontech BMS Connection Lost - firmware OS 3.51](https://community.victronenergy.com/t/pylontech-bms-connection-lost-firmware-os-3-51/10542/26): > > UPDATED 2025-01-10 - due to Venus OS v3.53 release which fixes this issue in most cases. On a systems having this issue: Check if VE.Can Port 1 is in use as well. Our VRM stats show that often its not. In case not, replug and reconfigure the GX to work on VE.Can 1 port instead. If both ports are needed, update to Venus OS v3.53 or later ([announcement](https://professional.victronenergy.com/news/detail/285/)), which will in most cases fix the issue. Only if that doesn’t fix the issue, contact your dealer for further troubleshooting and if necessary r… --- _[View the full topic](https://community.victronenergy.com/t/utilisation-uniquement-entree-1c-in-multiplus-2/20076)._