[APP][Pro] Marstek Energy Storage

Apps
,
42

Okay, I will try that. However, I think two systems cannot control the battery with Modbus, as they may conflict, right?

When I try to set modes I get the following error

image
image864×216 14.9 KB

43

Can you post me your marstek device name from the settings in Homey? The read only version.

I hope it indicates if it is a v3 device so I can make the scaling dynamicly.

44

If you have a tcp modbus gateway, that is in effect doing all the controlling. So from that perspective I do not see why the gateway would not allow multiple connections to receive requests from. In the end its just requests to the gateway (read or write) and the gateway send it up teh serial port.

But I did enforce you switching the device to force control mode before you can use the force controls. The modbus requires that, so I put that in, the error you see might ust be that, switch it to force mode first in the ‘Work mode’ into ‘Use force controls’, only than you can use the ‘Force charge modes’ control.

45

@Kaoh
“I wanted to bring the following cloud API from Marstek to your attention

1 Like
46

You mean this one?

20020
200201080×2105 115 KB

47

I get error gateway path unavailable

48

Than your gateway connection is not possible. Check if you setup your ew11 properly and set the device settings to match

49

No this one

1000014461
10000144611080×2340 115 KB

50

Hi @Kaoh

Amazing work! I waited so long for this!! Your a hero!

Just a question do we need to follow every steps from the tweaker page?

51

@Kaoh en nog een vraagje. Is het dit dat ik nodig heb want er staat wel geen ElfinEW11 in de naam

52

I ordered this one and it works.

1 Like
53

That’s the same page. Only the device version isn’t there in my case.

54

What is happening now😬

20032
200321080×2105 164 KB

20033
200331080×2105 111 KB

55

What version did you install now? 1.0.4? There was a 1.0.3 version last night that had this problem, so check that first, else send me a diagnostic report

56

Any should work, but setup and debugging is harder if it is not one documented in the community.

But looks like an ew11 so it probably is one anyway.

57

Thanks! And for the steps at tweakers. Do I need to follow each step at for the option with the ElfinEW11? Because I saw in the code they write at some point. Home assistant

58

Back to 1.0

Thats ok.

I’ll try 1.4 now.

59

1.0.4 makes the device unavailable

b43d8f1d-def9-46e4-9434-dcbfb96fd523

60

Hi wich option do you chose at step 8?

1000019014
10000190141048×653 96 KB

61 
Serial Port parameters on Elfin EW11:
    Baud Rate = 115200
    Data Bit = 8
    Stop Bit = 1
    Parity = None
    Buffer Size = 512
    Gap Time = 50
    Flow Control = Half Duplex
    Cli = Disable
    Protocol = Modbus
Comunication Settings on Elfin EW11B:
    Protocol = Tcp Server
    Local Port = 502
    Buffer Size = 512
    Keep Alive(s) = 60
    Timeout(s) = 300
    Max Accept = 3
    Security = Disable
    Route = Uart

Installation of Elfin EW11B packages for Home Assistant:

1.  Create the connector for your Marstek Venus E.
    Note: Beware of the Wiring schema.
2.  Connect the Elfin to the Marstek Venus E Modbus connector, it will power up.
3.  Confiugure the network settings of the Elfin. Preferable a fixed IP address. 
    Note: Choose STA as settings  
    Note: The Public IP address is the address what is in your Wifi network.  
4.  Configure Serial Port (see above)
5.  Configure Communication settings (see above)
6.  Reboot the Elfin.

this is enough.

2 Likes