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4.3. Communication
CAN Open communication bus:
- Baud rate: 250kBd
- Standard CAN (11 bits identifier)
-
120Ω resistor terminal not connected inside the BMM
- For objects dictionary, see document [RD2].
Nota: as the
120Ω resistor terminal is not connected inside the BMM, it is the responsibility of
user to integrate it in the CAN bus.
RS485 diagnostic bus:
- Use
“DiagWinBMS” software (at least revision 2.9.5).
- Refer to document [RD2] and §4.6.8.
One dedicated software (DiagWinBMS) installed on a computer (compatible using an external
USB/RS485 converter) is used to:
- Monitor the battery
- Configure battery parameters
4.4. Operation during storage & maintenance
During storage SMU in each module will wake-up periodically (every 1 hour) to measure cells
voltage and temperature.
SMU board will also calculate SOC and will update the static SOH. Static SOH is calculated
depending on the time the module spent at different SOC and at different temperature.