[APP][Pro] Eastron - Advanced Energy Monitoring with DIN Rail Meters over Modbus TCP

Apps
, , , ,
21

IMG_6691
IMG_66911206×2622 171 KB

22

Not sure on what exact settings you need for the Eastrom SDM630, but the baud rate seems a bit high, I suggest starting with 9600 and see what happens.

Also, I see port 26 and 23 used, did you set those values? I would expect to see 502 there.

These are my settings for a similar waveshare device connected to a Growatt inverter:

(Suggestion: set the IP type to DHCP and add a reservation to your router if possible)

23

Thanks @DaneedeKruyff, not yet successful
 changed baud rate, port (router is limited with these settings)also changed work mode:

IMG_6693
IMG_66931206×1431 175 KB

24

Well, let’s take a closer look. What are the other options/combinations for Work mode?

25

Wow cool, have some of these options

IMG_6698
IMG_66981206×1403 172 KB

IMG_6697
IMG_66971206×1336 156 KB

IMG_6696
IMG_66961206×1361 168 KB

IMG_6695
IMG_66951206×1425 178 KB

IMG_6693
IMG_66931206×1431 175 KB

IMG_6694
IMG_66941206×2622 223 KB

26

Ok, TCP Server with Modbus TCP seems the right combintion to me, but what I only see just now in your screenshot, you’re using port 520 instead of 502.

Could you change that and try again?

27

good catch, but also not fixed it 
Feel like a newbie here on this matter :monkey_face:

Is there a way to see if the data is flowing, access in other mac tool or so?

28

Hi! Are there any ambitions to support Eastron SDM630 Modbus TCP?

From my understanding there is no need for a TCP gateway for this as it is already directly connected to the local network. I am still a novice in this area so I am eager to hear from you.

BR

Mathias

29

Hi Mathias, Yes, the “SDM630 Modbus TCP” should be able to connect directly with Homey using the Eastron App, I haven’t been able to test or check registers. I you have one test or sent the register list.

 Type: Ethernet

 Protocol: Modbus-TCP

 Modbus address range: 1-247

 IP: 192.168.1.200 (default)

 Port: 502

30

Hi Wout, this is what I found, hope it helps.

  1. Hardware Connection

  • Eastron SDM (RS485): Connect the A/T+ and B/T- terminals of the meter to the corresponding RS485 terminals on the converter.

  • Grounding: While RS485 can work without ground, it is recommended to connect the GND terminal of the meter to the converter for stability.

  • Ethernet: Connect the Converter to your network switch or router using a standard RJ45 cable.

  • Power: Power the converter (usually 6–36V) and ensure the Eastron meter is powered by the mains.

2. Converter Configuration (Web Interface)

Connect the converter to your network, find its IP address (default is often 192.168.11.121 or similar), and enter it into a web browser.

  • Work Mode: TCP Server.

  • Protocol: Modbus TCP to RTU (if available) or Transparent Transmission.

  • Baud Rate: 9600 bps (default for most Eastron meters).

  • Data Bits: 8.

  • Parity: None (or Even, depending on your meter’s setting).

  • Stop Bits: 1.

  • Local Port: 502 (standard for Modbus) or 8888.

3. Eastron Meter Setup

Ensure the meter’s internal settings match the converter’s serial parameters (Baud rate, parity).

  • Modbus Address (Unit ID): Ensure each meter has a unique address if multiple are on the same bus (default is usually 1).

4. Troubleshooting

  • No Data: Check if A and B wires are swapped.

  • Parity Mismatch: Verify if your meter is set to “None” or “Even” parity.

  • Address Conflict: If you have multiple meters, ensure they have unique addresses (e.g., 1, 2, 3).

  • Connection Timeout: Set the converter mode to TCP Server and ensure your firewall allows port 502

31

Thanks All, not yet successful, a bit further
 Found my eastron settings and applied them


Set Baud 19.2

Set PArl NONE

Set StoP 2

SET rLY

SET rATE dFT

SET PULS 100

SET dlt 60

SET LP 60

SYS 3P4

SET Addr 005

Continue tonight


32

Great!

I have ordered but not yet received them.

Will try during April.

Br

Mathias