February 5, 20242 yr Author @p_i Thanks dude. I couldn't see anything obvious in the box but hoped as that's another pain to get power to the converter. As it happens it's easy for my distant inverter as there is a network switch there and a couple of mains sockets so I can connecting in the ethernet stuff and power no probs. On my other two I don't have either that close.. still now that is is working on two of my inverters its a small price to pay..
February 5, 20242 yr You do get devices like these, if you only have AC available there in a DB board or something: https://za.rs-online.com/web/p/din-rail-power-supplies/1457871
February 5, 20242 yr Author my config.yaml in HA now looks like below. Why it works like this but not as a separate modbus.yaml I'm not quite sure.. # Loads default set of integrations. Do not remove. default_config: # Load frontend themes from the themes folder frontend: themes: !include_dir_merge_named themes automation: !include automations.yaml script: !include scripts.yaml scene: !include scenes.yaml #modbus: !include modbus.yaml modbus: - name: waveshare type: tcp host: 192.168.1.250 port: 502 delay: 0 timeout: 5 sensors: - name: gym2_pv1_power address: 186 input_type: holding scan_interval: 5 slave: 1 - name: gym2_pv2_power address: 187 input_type: holding scan_interval: 5 slave: 1 - name: gym2_inverter_power address: 175 input_type: holding scan_interval: 5 slave: 1 - name: gym2_grid_power address: 169 input_type: holding scan_interval: 5 slave: 1 - name: gym2_ct_power address: 172 input_type: holding scan_interval: 5 slave: 1 - name: gym2_day_pv_power address: 108 input_type: holding scan_interval: 5 slave: 1 - name: gym1_pv1_power address: 186 input_type: holding scan_interval: 5 slave: 2 - name: gym1_pv2_power address: 187 input_type: holding scan_interval: 5 slave: 2 - name: gym1_inverter_power address: 175 input_type: holding scan_interval: 5 slave: 2 - name: gym1_grid_power address: 169 input_type: holding scan_interval: 5 slave: 2 - name: gym1_ct_power address: 172 input_type: holding scan_interval: 5 slave: 2 - name: gym1_day_pv_power address: 108 input_type: holding scan_interval: 5 slave: 2
February 5, 20242 yr Author 2 minutes ago, p_i said: You do get devices like these, if you only have AC available there in a DB board or something: https://za.rs-online.com/web/p/din-rail-power-supplies/1457871 yep, It getting the 240v there without busting in to the inverter circuit. But I'll probably open up the incoming isolator and take a feed off of that and stick a fused outlet on it to plop in a plug in PSU. I have seen those din mounted ones and I've seen some with fuses in I think. or else I'd have to put fuses in somewhere else.
February 6, 20242 yr Author Well I'm pretty chuffed to report that putting an rj45 splitter T (1 in 2 out) and setting one inverter to modbus 1 and the other the modbus 2 I can read both inverters with the same waveshare adapter.. Unfortunately I got home just slightly too late and not much happening on the solar front but I get something albeit mainly zeros so I think its working.
February 16, 20242 yr On 2024/02/06 at 7:34 PM, Perfo said: On 2024/02/06 at 7:34 PM, Perfo said: Well I'm pretty chuffed to report that putting an rj45 splitter T (1 in 2 out) and setting one inverter to modbus 1 and the other the modbus 2 I can read both inverters with the same waveshare adapter.. Unfortunately I got home just slightly too late and not much happening on the solar front but I get something albeit mainly zeros so I think its working. I would love to see an update and some photos of what you have done. Please share if you don't mind?
February 17, 20242 yr Author @shaun99 Hello Shaun99. I'm at a road block at the moment on this project. If you read some of my other posts you'll see I'm having problems with my installation and SunSynk wont answer their support emails. My PV system hasn't been working properly since Early December last year. My installer has finally managed to get a Sunsynk engineer to attend site and though the dates change I hope it will be this month. Until it is all up and running as it should I'm reluctant to go for a full install. I've tested it and it works so it is only a proper install waiting to happen. As soon as I'm operational that's what I'll get on with. I'll do some pics and an update at that point. I may even do a YouTube video to help anyone else doing the same thing though I'd probably make a complete hash out of any kind of video. I have the face for radio and the voice for newspaper
February 17, 20242 yr @Perfo I have made video's on installing most of the Home Assistant integrations for Sunsynk/DEYE inverters. The ESP32 is one of the best ways of doing it IMO. 22 hours ago, shaun99 said: I would love to see an update and some photos of what you have done. Please share if you don't mind? I used a 2 port Ethernet wall box to make a splitter when I had problems with my RS485/Modbus port
February 18, 20242 yr Author @Sc00bs I've studied your videos Sc00bs and they are very good. It was my back up plan to use an esp32 and follow your instructions if I couldn't get my ModBus adapter to work. I'm not really totally sure why I wanted to use the WaveShare adapter and not go straight for the Esp32 anyway. I liked the look of the solution plus I can connect multiple inverters to the same module just using dumb RJ45 T's they are a couple of £ (like one below). I like the idea that there is no remote intelligence. The WaveShare has a bit of inbuilt firmware but those and T's don't have any bespoke firmware they are off the shelf plug and play (nearly as you have to set some parameters on the WaveShare) . I know this moves the processing load on to the Home Assistant server but I rather it this end if possible. But never say never, I may be back to rethink in the future.
February 19, 20242 yr Everyone's use case is different so whatever works best for you @Perfo 🙂 Automating EVERYTHING is a great hobby, lol
February 19, 20242 yr @Perfo Nice thing about one of these connectors is that you can decide which cables from the the RJ45 plug you plug into the inverter you want to send to each RJ connector. I have Pins 1&2 (486-ModBus) going to one connector and Pins 4&5 (Canbus) going to the other connector.
February 19, 20242 yr Author @Sc00bs Yes good point. I'm only using ModBus anyway. Why do you need both ?
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