# Connecting the Multiplus 3000 to a BMS 12/200 via aux 1 and tsense port **URL:** \ **Category:** DIY\ **Tags:** campervan, lithium\_battery, marine, bms, professional, victronconnect, multiplus\ **Created:** [28 May 2025 21:19 UTC](https://community.victronenergy.com/t/connecting-the-multiplus-3000-to-a-bms-12-200-via-aux-1-and-tsense-port/33961 "2025-05-28T21:19:14Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Rikki](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@Rikki](https://community.victronenergy.com/u/Rikki)\ **Post date:** [28 May 2025 21:19 UTC](https://community.victronenergy.com/t/connecting-the-multiplus-3000-to-a-bms-12-200-via-aux-1-and-tsense-port/33961/1 "2025-05-28T21:19:14Z")
According to this wire diagram: > **[US-Van-Manual-&-Drawing-Smart-BMS-CL12\_100-MultiPlus-3kVA-12V-120V-60Hz.pdf](https://www.victronenergy.com/upload/documents/US-Van-Manual-&-Drawing-Smart-BMS-CL12_100-MultiPlus-3kVA-12V-120V-60Hz.pdf)** > > 1347.34 KB you can use inverting remote on/off cables from the t sense port and the aux1 port to connect to the load and charge cut off on the bms. it says you have to upload these settings. does anyone know how to do this via the victron connect app? do I need different software? ---
**Author:** ![MikeD](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/miked/32/1522_2.png) [@MikeD](https://community.victronenergy.com/u/MikeD)\ **Post date:** [29 May 2025 03:37 UTC](https://community.victronenergy.com/t/connecting-the-multiplus-3000-to-a-bms-12-200-via-aux-1-and-tsense-port/33961/2 "2025-05-29T03:37:24Z")
You need to do this with a laptop and the VE configure software. You need to load the 2 signal BMS assistant into the Multi, and follow the configuration settings. Once done make sure that you send the modified settings to the Multi. Software is free download from the Victron site.