Hi All, I’ve an app submitted in the App-store for testing. This is an app for Duco ventilation products based on Modbus (TCP). [[ Repo ] Initial beta release is meant for stability tests and for now it only supports the master box (focus, slient), but other products like valves and room modules wi…

Hi thanx, that’s helpfull. Is there a regsiter you scan for? I notice you start at address 0 with a length of 9 on ID 1. Can you read address 10? length 1, with function 4 on ID1? Best regards,

This is the first time I’m using CAS modus scanner, So I’m not so familiar with this program. How can I read address 10 EDIT: Do mean the following: [Duco CAS modbus scanner output 2]

Hi @Cas_van_Bussel , It works like this, goto settings and configure a read. After that you can trigger the read by clicking the ‘poll’ button. [image] You should read a register 10 or 11 with value 10 or 17(decimal) Oh, looking at your results, can you read 0 (zero?)

Hello Tjar, Something like this? [Duco CAS modbus scanner output 5]

Hi @Cas_van_Bussel , yes and register 0 (zero) and register 11 please.

Hi, So the first device page on your Modus interface is from 1-10 in your case. 11-20 is a new page (the device is not present. That differs from the current implementation on which the first page starts at 10 (up to 19). If you read register 1, with length 3, what data do you receive? Best rega…

Hello Tjar, I’ve tried the following setting and then get as result 17 on register 10: [Duco CAS modbus scanner output 7]

This is the information I get from register 1 length 3 [Duco CAS modbus scanner output 8]

Hi, Have you got a link to the datasheet? I didn’t expected zeros.

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Cas_van_Bussel February 28, 2024, 4:38pm 44

Hello Tjar,

Do you mean with register the value in " Offset"?
When I put 0 in Offset I’ll get the message: value in Offset must be greater then 0
If I put 11 in Offset then I’ll get the following error:

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