Danfoss Solar Inverter ComLynx

[TBN]

Hi

Has anyone tried to get data from a Danfoss Solar Inverter (ULX3600) via RS485 and Comlynx protocol?

[A.Rohde]

Hi TBN

What are the purpose of this post?

Are you expirencing some specific problems in implementing the protocol and need some help? If so, please explain how you have tried to implement the protocol and what kind of error you recieve.

Or are you just trying to find out if someone has done this previously, so you could reuse their code and save implementation time?

Best Regards,

Anders Rohde

Applications Engineer

National Instruments Denmark

[TBN]

Hi Anders

The purpose of this post is "Or are you just trying to find out if someone has done this previously, so you could reuse their code and save implementation time?"

Or get an idea of how I get started with the program.

Perhaps an example of how it can be created.

Best Regards

Tommy

[Micky_J]

Hi Tommy / Anders

I too have a ULX3600 and am interested in getting the data out.

Any ideas how to do it?

Mick

[TBN]

Hi Mick

No, Sorry I have not had time to look at it currently.

Tommy

[DonTommy]

Hey

I am looking into the exact same problem.

I am sitting and playing around with it right now, have my linux pc connected to the inverter, with a usb cable in my pc into seriel that converts over to an ethernet cable I think, into the RJ45/RS485 connection in the inverter.

However I have no idea how to talk with the inverter and getting the data I want.

I tryed using modpoll (from modbusdriver.com) the best result I could get out of it was reply timeout when polling slave, so I actually have no idea if my connection to the inverter is established

[TBN]

Hi DonTommy

Which converter are you using (serial to RS485)?

[DonTommy]

None rs485 converter right now, and getting pretty sure thats why it dosnt work 😉

But is getting my hands on a Adam 4520 converter later today, so hopefully that will bring me a step clearer getting data from the inverter

[DonTommy]

Got the Adam 4520 RS485 converter, and trying with modpoll again, however same result, reply timeout..

modpoll /dev/ttyUSB0
modpoll 3.4 - FieldTalk(tm) Modbus(R) Master Simulator
Copyright (c) 2002-2013 proconX Pty Ltd
Visit http://www.modbusdriver.com for Modbus libraries and tools.

Protocol configuration: Modbus RTU
Slave configuration...: address = 1, start reference = 1, count = 1
Communication.........: /dev/ttyUSB0, 19200, 8, 1, even, t/o 1.00 s, poll rate 1000 ms
Data type.............: 16-bit register, output (holding) register table

-- Polling slave... (Ctrl-C to stop)
Reply time-out!
-- Polling slave... (Ctrl-C to stop)
Reply time-out!
-- Polling slave... (Ctrl-C to stop)
Reply time-out!
-- Polling slave... (Ctrl-C to stop)
 

Anybody that have an idea how to get me going?

Thanks

[DonTommy]

And after spending a couple of hours in various manuals, found out that the inverter dosnt even use modbus, but Danfoss own ComLynx, where there is even less info on it online 😞