[HELP] can't get proper connect/get data from POW-SunSmart 12KL3 by RS485
Nowalon opened this issue · comments
A clear and concise description of what the problem is.
hi! I tried to connect PowMr POW-SunSmart 12KL3 with 2 different types of RS485-to-TTL (especially with MAX485 as on the picture with same wiring to D1 mini but with the RJ45 cable pinout described here on the last page https://cdn.shopify.com/s/files/1/0746/0415/1079/files/WIFI-HF-N--RS485-_Manual.pdf?v=1715157348 (re-checked a lot)) and I'm always gettting the messages like:
Try Autodetect Protocol
[C: QPI][CR: 0][CC: 0][L: 3]
QPI: NAK (Length: 3)
[C: ^P005PI][CR: 0][CC: 0][L: 3]
^P005PI: NAK (Length: 3)
Try Autodetect Modbus device
Response Timed Out
Response Timed Out
Time-out
Request failed!
Response Timed Out
Response Timed Out
Time-out
what steps and direction would be suggested to dig in? thank you!
Additional context
No response
hello,
the messages tells that are no or wrong response from the inverter.
so i dont know your device, its possible that it is not supported at the moment by modbus, modbus is experimental now and need a lot of data and configuration.
please ask your seller or vendor for the protocol sheet like register and more
hello! thank you for response.
I've found some protocol and adresses description for POW-SunSmart 12KL3 here "HomeAssistant ESPHome / RS485 Modbus Integration": https://github.com/ByteSeekerPro/PowMr-POW-SunSmart-12KL3-RS485-HomeAssistant-Integration/blob/master/docs/SRNE_ModBus_Protokoll_V1.92.pdf , https://github.com/ByteSeekerPro/PowMr-POW-SunSmart-12KL3-RS485-HomeAssistant-Integration/blob/master/src/powmr-inverter-1.yaml
but not sure I can apply this to use it with Solar2MQTT by my own.
thank you,
it needs time to implement it, modbus is new and in testing, so a lot of devices needs to build in
I got it, understand. thanks again for your response. you're doing a good job with this, Solar2MQTT
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