Here i will show how to interconect all in the same BUS. Is hard to find infos using PAPERUI to acquire that.
After a lot of tests discovered that CH340 chipsets ARE BAD for using in a real world system. for tests and debugging is good. For now using a ISOLATED FTDI chip. works 100% no erros.
my config is SDM630 == ID 1
RELAY BOARD == ID 2
EPEVER TRACER AN == ID 3
ALL devices setted to 9600 8 N 1
1-Install Modbus Binding.
2 create the 3 serial modbus bindings.
Probably 1 poll for each will not be enough becouse have data that i want to poll after and MAYBE can not work polling all at the same time. EPEVER have problems with polling more then 6 registers at a time in the 9600 BPS. SDM dont, and relay board dont. works perfectly.
the data it self is extracted at modbus data bindings.
sdm630:
in that case extracting the L1 CURRENT data.
Hello Johann, thank you for this Tutorial.
I have one Epever Tracer and and have connected them with Modbus Binding.
Can you show me how you config the Modbus data for your Epever Thing?
I would like to get Information about Current Load, Current Power and Current Voltage, Is there a way to get this Vaules?
first, you should set your ep-ever in the right speed. factory defaults to 115200 speed. IF you use only the tracer A in the bus, no problem. you just have to set the right speed in the serial thing. after that, READING the modbus implementation from tracer A, you see its all in HEXADECIMal format. so you have to convert it before. after conversion, you enter the values in the poller, and them you extract it using a thing, pointed to the first register you polled of the modbus. sometimes 32 bit swapped
i have connection and can read the values.
But i do not know how to find out which of them is the Power, which is Voltage.
I tried to add Modbus datas for 12544, than 12545, 12546, and so on. Is there an overview which of them stands for Power, Voltage, Curent or temperature?
P.S. could you also share your js. Translation file? I am not good at programming, i guess it devides by 100?
I’m trying to connect my EPEVER wifi box using your method. I can successfully get the data on my PC using a virtual COM port setup to the Modbus TCP server on the device. I can read (and write) the data using EPEVER Solar Station software, so the connection is good
However, when i try to connect with OpenHAB i’m getting no where. I followed the tutorial above (many thanks!), but with the TCP bridge option, but just get connection errors with all the pollers