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+--- Thread: Modbus connection problem LG Energy Storage System (/showthread.php?tid=5979)
Modbus connection problem LG Energy Storage System - KoBra - 02.05.2025
Hi, i am facing problems with reaching a LG energy storage system
1. I have no errors in the log but the data is not automatically updated when they change, only when i update the connection setting (persistant or not connection makes no difference)
2. I have two items i need help to map:
HEMS_R_FAULT_MSG
1150 = 32 bits bitmask (for 25 error codes)
1151 = 32 bits bitmask (for 3 error codes)
HEMS_RW_POWER_METER_ACTIVE_POWER
1162+1163 = 4 bytes big-endian (x100)
i checked the modbus part on the website but i can't find it :-)
RE: Modbus connection problem - Daniel - 02.05.2025
Use Read test to find correct settings, later use modbus profile app to create profile.
RE: Modbus connection problem - KoBra - 02.05.2025
(02.05.2025, 12:47)Daniel Wrote: Use Read test to find correct settings, later use modbus profile app to create profile.
Hi Daniel, I can read, it is also read when saving but not updating. Whatever i try (persistant connection, different polling times, etc)
RE: Modbus connection problem LG Energy Storage System - admin - 02.05.2025
Which error logs have you checked? Modbus has separate logs. Check both just in case.
RE: Modbus connection problem LG Energy Storage System - KoBra - 02.05.2025
(02.05.2025, 13:10)admin Wrote: Which error logs have you checked? Modbus has separate logs. Check both just in case.
There where no error logs in both normal and modbus (i checked) But after reboot it started working.
Now i just need some help on how to read out the data i posted in the first one.
RE: Modbus connection problem LG Energy Storage System - admin - 02.05.2025
Use this to make a profile: https://forum.logicmachine.net/showthread.php?tid=5911