BMS Protocol Converter - BMS-LINK

1 Overview

BMS-LINK is an external BMS protocol converter with an independent MCU. Setting the "PRO" parameter through the remote meter or PC software after connecting the BMS-LINK to UP-Hi and lithium battery. Different manufacturers' protocols can be converted into our standard protocol, which improves the actual application's flexibility. Compared with the traditional built-in BMS protocol conversion module, this converter has stronger application flexibility and expansibility. It is more suitable for our all-in-one products and other products to communicate with the lithium battery BMS.

Features:

• Independent MCU
• Dual RS485 com. port
• Support multi BMS protocols conversion
• Freely setting the protocol number
• Reliable protocol conversion and communication
• Optional remote meter or PC software to set the protocol number
• Simple installation and friendly operation

The port connected to the lithium battery is an isolated RS485 communication port, and the port connected to the all-in-one products is a non-isolated RS485 communication port.

2 Characteristics

A diagram illustrates the connection of the BMS-LINK converter between an EPEVER UP-Hi device and a lithium battery, utilizing RJ45 communication cables.

The front panel of the BMS-LINK device is shown, featuring two RJ45 ports labeled 'TO UP-Hi' and 'TO BMS', along with status indicator lights.

RJ45 Pin Definition:

3 Connection Diagram

Step 1: Connect the BMS-LINK converter to the RS485 port of the all-in-one product and the lithium battery through an RJ45 communication cable.

Step 2: Modify the lithium battery's default ID into the fixed ID through the DIP switch.

The DIP switch configuration for lithium batteries is presented, showing a series of switches (1-6). A table details the switch settings (ON/OFF) corresponding to different 'Fixed ID' values for the lithium battery.

Step 3: Modify the "PRO" parameter into the BMS protocol number through the remote meter or PC software (Take the remote meter as an example):

1. In the real-time interface, press the UP+DOWN button and hold on for 2s to enter the engineer's operation interface.
2. Press the UP/DOWN button to select the "PRO" parameter (item 40).
3. Press the SET/ENTER button and hold on 2s to enter the parameter modifying interface.
4. Press the UP/DOWN button to modify the "PRO" parameter.
5. Press the SET/ENTER button to confirm the modification.
6. Press the ESC button to exit.
7. Restart the all-in-one product to make sure the BMS protocol number is modified successfully.

1) Please refer to the "BMS Lithium Battery Protocols & Fixed ID Table" or contact our technical support department for the supported BMS manufacturers and protocols.

2) Please make sure the lithium battery's default ID has been modified into the fixed ID before setting.

4 Specifications

5 Disclaimers

The warranty does not apply to the following conditions:

• Damage caused by improper use or inappropriate environment.
• Damage caused by working temperature exceeds the rated range.
• Unauthorized dismantling or attempted repair.
• Damage caused by force majeure.
• Damage occurred during transportation or handling.