DALY BMS Explains CAN, UART/485, and Modbus Communication Protocols
Battery management system manufacturer DALY BMS has released detailed explanations of its three core communication protocols: CAN, UART/485, and Modbus.
DALY BMS, a manufacturer of battery management systems (BMS), has issued technical details regarding its three primary communication protocols used for data exchange and control within its products. These protocols, CAN, UART/485, and Modbus, are essential for integrating DALY's BMS units into various applications.
The company has specified the CAN protocol's parameters, including the use of CANtest as a testing tool and a baud rate of 250K. DALY BMS primarily utilizes Extended Frames for communication, reserving Standard Frames for specific customized BMS models. The release elaborates on data identification (Data IDs) accessible to customers, typically ranging from 0x90 to 0x98, and details the communication format for transmitting and receiving information, including alarm status and device control commands like charging and discharging MOS.
For the UART/485 protocol, a baud rate of 9600bps is set. The press release outlines the checksum calculation method and the structure of communication messages between PC software and the BMS unit. This includes defining frame headers, addresses, Data IDs, and data length, with similar data content to that used in the CAN protocol.
The Modbus protocol section details message formats for both reading and writing registers. DALY BMS provides examples of request and response frames, specifying slave addresses, function codes, register addresses, and CRC-16 checksums. This information is crucial for users integrating DALY BMS products into larger industrial automation or monitoring systems.
These technical explanations aim to equip DALY BMS customers and developers with the necessary information for the effective implementation and customization of their BMS solutions.