modbus and KNX

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greenwitch
Posts: 24
Joined: Saturday 26 May 2018 18:30
Target OS: Raspberry Pi / ODroid
Domoticz version: BETA
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modbus and KNX

Post by greenwitch »

Hi,

Any chance for real support for KNX and MODBUS with multiple devices?

Adam
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psubiaco
Posts: 222
Joined: Monday 20 August 2018 9:38
Target OS: Raspberry Pi / ODroid
Domoticz version: Beta
Location: Italy
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Re: modbus and KNX

Post by psubiaco »

Modbus and KNX are standard protocols, this is good.
I believe that Modbus is good only for outputs devices (relay modules) but not for inputs because it always need polling from the master device. You can poll for thermal/humidity sensors, but can't poll alarm sensors continually to know if someone has entered your house.
I think that KNX is a really good multi-master protocol, where any input device can communicate with the controller and with other modules...It's a pity that KNX is not directly supported by Domoticz, as it's a real standard with many manufacturers.
Paolo
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