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Freedom Won battery data visible in CCGX but not via Modbus

Hello to all. We have an installation of two Freedom Won batteries connected in parallel as master and slave. Our SCADA system is connecting to a CCGX via Modbus, and we need to know whether both batteries are online. On the CCGX, the parameters "Battery modules" and "Installed capacity" are displaying correctly, but I cannot read these values via Modbus. See the screenshots below. "Minimum cell voltage" and "Maximum cell voltage" (Modbus 1290 and 1291) can be read, but both "Capacity" (309) and "System; number of batteries" (1286) give zeroes. Any suggestions?

CCGX Color ControlBMSModbus TCP
2 |3000

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