Settings

Connectivity

CAN (external)

The CAN1 (external) bus is used to configure the device and communicate with external devices (vehicle controller, inverter, display panel, etc.).

Also CAN1 can be used as entry point to update child BMS Main 2.1 and BMS Mini controllers in battery modules.

To change the parameters of the external CAN bus, designed to configure the device and interact with the upper-level system, select the "Connectivity - CAN (external)" section:

In this section:

• Enable – a flag to enable the CAN bus transceiver;
• Node ID – an identifier of the device in the CANopen network;
• Bus speed – CAN bus baud rate;
• Send TPDO messages – a flag to enable sending TPDO messages on each Sync message;
• Send Sync messages – a flag to enabled sending Sync messages (CANID = 0x80, no data);
• Sync period – a period of sending Sync messages, ms;
• Send Heartbeat messages – a flag to enable sending Heartbeat messages;
• Heartbeat period – a period of sending Heartbeat messages, ms;
• Ignore NMT messages – a flag to ignore NMT messages;
• Ignore SDO messages – a flag to forbid communication using the CANopen SDO protocol.
• CLI: Master ID – message ID for transmitting CLI-commands to the device;
• CLI: Slave ID - message ID for receiving CLI-answers from the device.

CAN (internal)

To change the parameters of the internal CAN bus designed to interact with battery modules based on BMS Main 2.x or BMS Mini S / BMS Mini, select the "Connectivity - CAN (internal)" section:

In this section:

• Enable – a flag to enable the CAN bus transceiver;
• Bus speed – CAN bus baud rate.

Modbus (RS-485)

The BMS Main X device supports the Modbus RTU protocol over the RS-485 bus.

To change the parameters for connecting to the RS-485 bus, select the “Connectivity – Modbus (RS-485)” section:

In this section:

• Enable – a flag to enable the RS-485 transceiver;
• Address – a network address of the device;
• Baud rate – RS-485 bus baud rate.

Wi-Fi

With the help of the BMS Wi-Fi module, the BMS Main X supports connection to a Wi-Fi network.

To change the settings for connecting to a Wi-Fi network, select the "Connectivity - Wi-Fi" section:

In this section:

• Enable – a flag to enable connection to a Wi-Fi network;
• SSID – a name of the Wi-Fi network;
• Password – a password to connect to the Wi-Fi network;
• Security type – a secure connection type.

Cellular

The BMS Main X device can connect to a cellular network if the BMS GSM communication module is installed on the device.

To change the settings for connecting to a cellular network, select the "Connectivity → Cellular" section:

In this section:

• Enable – a flag to enable connection to a cellular network;
• Module – version of BMS GSM module:
  • V1 (SIM7070G);
• Network type:
  • GSM;
  • LTE CAT-M1;
  • LTE NB-IoT;
• Use APN – a flag to enable APN;
• APN: Name;
• APN: User;
• APN: Password;
• Use PIN – a flag to enable the PIN code;
• PIN number;

LAN

The BMS Main X device can connect to a local area network if the BMS LANmodule communication module is installed on the device.

To change the settings for connecting to LAN, select the "Connectivity → LAN" section:

In this section:

• Enable – a flag to enable connection to a local network;
• Module – version of BMS LANmodule:
  • V1 (W5500);
• MAC – a MAC address of LANmodule;
• IP mode – a type of IP address:
  • Static – IP address is configured manually;
  • Dynamic – IP address is received from DHCP server;
• IP address – IP address (in static IP mode);
• Netmask – subnet mask (in static IP mode);
• Gateway address – address of a gateway (in static IP mode).