DALI Question

arunkish · Joined: 23 Dec 2008 Posts: 83

Hello

I am planning to implement DALI protocol using PIC 18F4620, I am new to DALI and I understood a little about DALI protocol, but what I cant get to know is about the switches.

I could have a DALI master (Controller) and SLAVE device (a light).... works fine.

SLAVE devices can have address of 0 - 63.
MASTER can control the SLAVE devices.

What I want to know is I read somewhere in the internet that SWITCHES will not be having address. In my case I am planning to use a switch (conventional type) apart from master controller. The idea is that I can use MASTER controller to turn ON/OFF the light as well as the switch. How can this be done ?
Where can I read about this. I have done a lot of googling, but cant get the right one.

Anyone with similar experience please point me the right direction.

Thanks for your help.

asmboy · Joined: 20 Nov 2007 Posts: 2128 Location: albany ny

DALI is a BALANCED BUS, Manchester (NRZ) code method.

If new to PICS as well, you've got a very heavy lift ahead of you.

this might help:

http://www.mouser.com/pdfdocs/AN11174.pdf

BTW: try this search term

dali protocol ic

temtronic · Posted: Mon Jun 23, 2014 3:07 pm

Are you saying you want a regular 'on/off' AC type switch to ALSO control the DALI light slave?
If so, it would be connected to the SLAVE controller and NOT be on the DALI bus. It would be up to the SLAVE controller to decide how to operate the light.
I need more information, like controller make/model spec and links to help further.

hth
jay