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tony-torres asked

Battery Alarms & Capacity Modbus-TCP

For systems with CAN-Bus BMS connected batteries:

  • What is the device class for modbus registers 320-326?
  • Are these battery alarms 320-326 modbus registers available?
  • Is the battery capacity 309 available?

1668423616338.png

I only read zero values using Pylontech US5000.

Modbus TCP
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1 Answer
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wkirby answered ·

320-326 are null registers, you won't read anything. 320 - 770 are all null in fact.
309 reads 0 because Pylontech may not have provided the information to populate this register.

For a full list of all the available registers, download the TCP register list if you have not done so already: https://www.victronenergy.com/support-and-downloads/technical-information

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Related Resources

Modbus TCP Basics