Ämne: Modbus Register list for EcoZenith i255

[MartinDK]

Hello everyone

I am looking like crazy for a modbus register list for the built-in MODBUS/TCP slave(server) on my EcoZenith i255 and perhaps some interface information.

No response from info @enertech.se on the subject and I can only find the normal user manuals online with extremely limited info on interfaces and some old register lists for the old CTC Internet accessory.

For some reason I can connect to the modbus port (502), but the slave doesn't reply anything on my modbus requests. I am considering trying the RTU interface, but would prefer TCP.

Can anybody ?

Med venlig hilsen fra Danmark

Martin

[Carl N]

Here.

[MartinDK]

Mange tak

Unfortunately it is not the CTC Internet/BMS module (https://shop.ctc.se/produkt/ctc-bms-internet/) with MODBUS/RTU, that i have.

CTC started issuing retrofit displays/controllers with built in internet and BMS for the i250 instead: https://shop.ctc.se/produkt/displayenhet-ez-i255-i250/ but haven't issued any modbus register list or interface description. And unfortunately no response from info@enertech.se.

If anyone have a direct support email address or similar, i would be very happy.

På forhånd tak,

Martin

[Carl N]

I don't think that display is ment to be used for any external modbus communication?
CTC don't have any parameter list for that, and they will probably not support the use for any external communication.
If the parameter list for the BMS interface don't work then: 

[MartinDK]

The new retrofit display is now provided instead of the old CTC BMS or CTC Internet box; see screenshots from manuals below.

I've tried the MODBUS-TCP interface via port 2 but get no data from it, but will try port 1 with MODBUS-RTU one of the coming days.


https://www.ctc.no/file-download/37b972f942d391ac18a3c3ec7008bf63.pdf :


https://ctc.se/file-download/a7b626e9a9dbfe59020bdc830f5642fc.pdf


https://ctc.se/file-download/a7b626e9a9dbfe59020bdc830f5642fc.pdf

[Carl N]

OK, Modbus via TCP internet sounds little like putting a Porche engine in a Lada. (Internet = Porsche, Modbus = Lada).
Usually the internet interface have much better kommunication than modbus, I don't understand the benefit to use modbus over internet.
I would use CTC myUplink instead.

But i found this when I searched, it seems to be different from the other one.
https://www.rskdatabasen.se/infodocs/MAN/MAN_31_6246513.pdf

[MartinDK]

Thanks - i'll try and see if I can get some response from the controller with that

If i'm succesful i'll post results here...

/Martin