Search found 4 matches

by ChrisH
Sat Jul 01, 2023 7:45 pm
Forum: Customer/End User Help
Topic: RS485 communication interface
Replies: 38
Views: 15728

Re: RS485 communication interface

Many thanks Dave! That’s made all the difference. I now have a RS485 wired connection giving readings that look likely. Function code 4 is right. I had a little early confusion about the radix of the register addresses and I mentally masked out bits that are required. Recognising that they really a ...
by ChrisH
Sat Jul 01, 2023 1:11 pm
Forum: Customer/End User Help
Topic: RS485 communication interface
Replies: 38
Views: 15728

Re: RS485 communication interface

Finally I’m getting a response from my inverter using modbus RTU, but it’s not what I’m expecting! I’m trying to read 24 register values starting from address 1000 so I’m sending F7 04 03 E8 00 18 64 E6 (F7 = device address, 04 = register read, 03 E8 = address 1000, 00 18 = read 24 values, 64 E6 = ch ...
by ChrisH
Mon Jun 26, 2023 5:46 pm
Forum: Customer/End User Help
Topic: RS485 communication interface
Replies: 38
Views: 15728

Re: RS485 communication interface

Thanks Dave, Funnily enough I stumbled across that after I removed one of the screws, so I have indeed swapped a spare pin for the damaged one. I just need to work out why emails alerts aren't working from this topic so I can see helpful comments more quickly! So the next thing... I'm hoping to use ...
by ChrisH
Fri Jun 23, 2023 12:23 pm
Forum: Customer/End User Help
Topic: RS485 communication interface
Replies: 38
Views: 15728

Re: RS485 communication interface

Does anyone know who makes this connector and how to get a replacement? It appears my installer stripped the thread for one of the meter connections. When I opened up the connector the wire dropped out and I can't tighten it in. I tried one of the spare screws but no joy. Maybe I can wedge it for a ...