Recent content by Searme

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    Sunspec standard through basic modbus communication

    Hello, I am working on a modbus communication device and stumbled upon Sunspec compliant devices that I need to communicate with. To be more precise, I am working with solar inverters and in order to communicate with them, sometimes, the manufacturer provides a register map for modbus...
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    Exchanging alarm states with modbus

    Hello, I am currently working on a data monitoring for inverters, and I am trying to handle alarms from the inverter. But it doesn't seem quite clear how it works. On my inverter, there are 3 registers called "Alarm x" (x going from 1 to 3) and they each have their own register address. This...
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    Illegal adress for a 32 bit value

    Hello, I am working on data logging inverters that communicate using ModBus. I can retrieve most values with a simple python script sending requests via RS485, but 30% of the requests returns an "Illegal data adress error". Not much info on this error except: "the address might not exist"...
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