Questions tagged [dali]

DALI (Digital Addressable Lighting Interface) is a lighting industry specific protocol between control devices (controllers) and control gear (ballasts) formally specified by IEC62386.

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Dali 2 - BUS PSU - pull down rate

I have wired up my DALI network with 2 drivers, a BUS and using the Mikro DALI 2 click boards with an ESP32 for the MCU. I am able to send BROADCAST commands to switch the lights on/off but when it ...
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41 views

DALI - how do I get control gear that supports ballast status and lamp failure query? [closed]

I'm new to DALI. I wanted to buy lights that I could query to see if there is a lamp failure. When purchasing control gear for these lights, how do I know that it supports this feature? If it lists ...
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1answer
52 views

Current draw and voltage drop of DALI bus line

I am starting with the DALI protocol and already was able to send/receive commands based on this project. With comments from a related question I improved my circuit and the quality of my signal. The ...
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97 views

DALI addressing of multichannel driver

I am trying to set up an Arduino as DALI-Master for multiple light sources. As a starting point I made use of this excellent project. There is also a gitpage with a good overview of the available ...
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1answer
41 views

Using DALI-2 BUS interface(slave) to supply SiLABs EFR32xx

I am working on DALI bus converter, using EFR32xx MCU(SiLAbs) for home usage. My question is following.. Is it possible to get DC voltage from DALI interface to supply MCU unit(3.3V) to avoid stuff ...
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4answers
62 views

Understanding Dali2 D4i, 202 memory bank energy data

Below is a log from memory bank 202: Bank [202] , Loc[0x04]: 255 Bank [202] , Loc[0x05]: 0 Bank [202] , Loc[0x06]: 0 Bank [202] , Loc[0x07]: 0 Bank [202] , Loc[0x08]: 1 Bank [202] , Loc[0x09]: 49 Bank ...
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81 views

Is there an IC which converts I2C/UART/SPI (or any standard communication interface) commands directly to DALI2 format? [closed]

Is there an IC which converts I2C/ UART/ SPI commands (or any standard communication interface) directly to DALI2 format? DALI seems similar to 1.2k baud UART in a sense, but is encoded in Manchester ...
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115 views

Retrieving energy data from dali2 D4i memory bank (202) of a luminare

I'm trying to read the memory bank202 from a DALI-2 supported led luminary for energy consumption. it returns a value of zero. when i gone through the Dali part 252 energy reporting Doc. It asked me ...
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1answer
48 views

DALI : How to set a scene level?

I have set up my DALI master with 1 slave (prototyping phase) and managed to commission the slave (as far as I'm aware by testing against a direct arc level against the single short address). I am ...
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65 views

DALI interface to 3.3v

I'm trying to make a circuit to interface a DALI driver (Digitally Addressable Lighting Interface) to a SAML21 microcontroller. Voltages on the DALI side goes from 0 to 22.5V, a digital 0 goes from 0-...
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156 views

Dali commissioning Luminaires

I have more than one lamp and i need to make a program to commissioning. I've already did it whit a single lamp but now I don't know : How to make addresses for multiple lamps (in my case A3 is ...
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189 views

Dali Light Addressing: How to?

As I am trying to create a program that addresses the various luminaires, I wanted to know better theoretically not the commands to give, but why I am giving that specific command. I've searched for a ...
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1answer
80 views

Is additional isolation needed for inverter control circuitry?

I'm currently setting up a PV island system. Electricity is stored in two parallel 12V batteries which is then fed into a 300W 230V inverter. The load connected to the inverter consists out of several ...
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1answer
94 views

Series and parallel LED using

I am planning to build 4 LED-strips using two different 'white' settings (1+1 strip x 4). The LEDs will be driven by a 24V constant voltage dimmable RGB-DALI driver (up to 5A per channel). My idea is ...
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1answer
142 views

DALI Lighting (IEC62386-209) and Command-In-Between

Good Afternoon, I'm having some trouble understanding IEC62386-209 section 12.7.3, which involves sending an "ENABLE DEVICE TYPE 8" command to DALI Control Gear prior to sending an extended (DT8) ...
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80 views

Dali - Handling multiple responses

I have found a similar answer related to taking care of multiple responses in a Dali bus system: DALI: Handling multiple responses from DALI system I'm designing the dali control device(master). I ...
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1answer
76 views

Can I have multiple KNX/DALI gateways on a single DALI line?

In our KNX test lab we have several KNX/DALI gateways from different vendors (ABB, Ipas, Siemens, etc.). We have 1 DALI line with a few testing devices. Whenever we do tests we need to physically ...
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1answer
190 views

Dali Commissioning Without Randomise

I have 2 slave devices connected to my dali bus. I can set their short address using the below steps: ...
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1answer
199 views

DALI - Read Energy Consumption of a Luminaire

I have been trying to find a command to read information about the energy consumption of a luminaire using Dali, yet couldn't find anything on the documents. Is this possible to read information ...
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1answer
61 views

Minimum Signal Current for DALI Driver

I was looking at the specifications for DALI drivers and apparently the nominal current usage is 2mA/driver for the dimming signal. Does anyone know what the minimum current is? I have a 12V/1mA ...
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1answer
109 views

DALI: Resetted short addresses but now ballasts not responding to COMPARE?

I currently have a DALI set-up with three LEDs. All LEDs turn off when sent a broadcast command to turn off, so the set-up is wired correctly. I have removed all of their short addresses according ...
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1answer
298 views

DALI: How do I delete the short address from a device?

I have a device that already has a short address. I need to delete this short address so that I can do the initialisation process again (from random address to short address). Can this be done? What ...
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2answers
247 views

What is this diode bridge used for in this circuit?

I'm currently trying to figure out how this circuit work : I found this in a microchip documentation dealing with DALI (Digital Addressable Lighting Interface) protocol. The DALI protocol is mostly ...
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1answer
287 views

DALI deterministic commissioning

I am currently looking into setting up a DALI system with my own programmable DALI master and (over time) a multitude of DALI (LED) lights. The general idea is to use an already existing DALI python ...
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1answer
302 views

I need help to understand a sniffer circuit schematic

I'm an electrical engineering students and for a school project I need to understand a circuit schematic. First, I will provide some context. The school project I'm working on is the modification of a ...
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1answer
462 views

Trouble understanding overvoltage protection circuit

I am working on a DALI circuit and came across this app note. App note gives a schematic which is supposed to protect the circuit in case someone connects 220 VAC wires to the DALI lines. Schematic ...
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3answers
187 views

DALI Commissioning reduction

Is there any way I can reduce the DALI commissioning? I have an Occupancy sensor, photo sensor and a switch which are DALI devices. So every time when I turn on the device it goes for commissioning ...
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2answers
686 views

Need help understanding DALI circuit and 220 VAC protection

I am making a circuit to interface my MCU with a DALI bus. My basic circuit works and I am able to communicate on DALI bus. It looks like this: I fully understand the above circuit. After my base ...
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3answers
2k views

Understanding DALI power supply

I am working on a DALI system and I came across this schematic for the DALI power supply in a Microchip app note AN1465: It says the power line can be 12-20 Volts but the current has to be limited to ...
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1answer
91 views

Do I have to initialize Dali lamp somehow if I use broadcast commands?

I have few Dali lamps. Some of them are new, some of them are used. It is hard to tell which was initialized (addressed?) and which was not. I have simple DALI circuit with microcontroller and simple ...
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2answers
749 views

Understanding STEVAL-ILM001V1 DALI transceiver schematic + adding protections

I'm working on implementing a DALI bus interface circuit. DALI has a few specifics that make this tricky: The device should draw at most 2mA when receiving, it transmits by shorting the bus (250mA is ...
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753 views

DALI bus power supply requirements

As per standard DALI power supply should be 15 V at 250 mA. In the same time standard says that there can be up to 64 devices on the bus. So I can suppose that each DALI slave SHOULD cunsume 4 mA from ...
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1answer
271 views

DALI optical isolation of signal, but no power isolation?

The DALI standard suggests a separated power supply, because the DALI control lines are not galvanically isolated, so mains voltage may appear on the lines (and the standard suggests that DALI devices ...
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1answer
71 views

How to calculate the Short Circuit current of a small DC circuit?

I need to do a short circuit test for my DALI slave device. I have observed a maximum load of 140W at 210V-rms (Load current = 650 mA , PF = 0.975). I have to do a short circuit at the load side and I ...
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236 views

How to Update firmware of microcontroller using DALI lines of a DALI slave module?

I have developed a DALI slave module with PIC 16F18326 microcontroller. Now, I want to make a Bootloader for this PIC. But the problem is, I don't have a serial communication or USB connection with ...
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549 views

DALI Slave not responding to short address

I'm creating customized DALI Master from scratch. The problem is, that no matter what I do, none of the devices responds to short addressing. Let's start from the beginning. After connecting single ...
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2answers
722 views

Strange behavior of the DALI controlled luminaires

I faced a strange behavior of a DALI controlled LED luminaires circuit. I have 48 LED luimianires with a MeanWell ELG150-C700-DA drivers connaected according to the scheme below: I commissioned the ...
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1answer
217 views

LED driver type detection- 0-10V or DALI

I am looking for the solution which can automatically detect the driver type installed in street light luminary. There are control mechanism which controls and provides the 0-10V and DALI dimming to ...
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1answer
421 views

DALI Signal Voltage Range and Power Supply connection confusion with WAGO

In an attempt to solve this problem, I was cross-checking my connections several times. During this, I thought it will be interesting to see the DALI signal coming out of WAGO DALI Module as opposed ...
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1answer
210 views

Is the isolation necessary in this circuit?

I am designing a circuit to control LED drivers. The main characteristics are the following: The circuit is powered through the electrical network (230 VAC) It has three types of dimming outputs: 0-...
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1answer
1k views

DALI Click Board: Not clear about the board operation, usage and circuit design

I am developing a DALI Control Device using STM32 board. I have already programmed the board to send DALI Slave commands according to DALI Protocol. But I am facing problem interfacing my board with ...
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1answer
612 views

Adaptability of DALI Click Board for DALI Power Supply 18V DC, 250mA

I am developing a DALI Control Device using STM32 board. I have already programmed the board and got some basic results, now I want to test my device with industry standard DALI Control Gear. For that,...
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2answers
320 views

DALI Command's reply to the meaning of representatives

I have some control gears which already have short addresses, are connected on DALI lines. I tried to send Query Short Address (command 269)& verification Short Address (command 268), but I didn't ...
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1answer
199 views

Clarification required on DALI Standard 101,103

I want to develop a complete DALI Control Device with two important features, one being "3 DALI buses on the device" and other being the "RGB colour control feature"! Already, I have successfully ...
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234 views

How to set the group in DALI system on the bus? [closed]

When I have 6 gears on the DALI bus, how to set up a pair of two to the group by command?or another way to set? thanks!
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662 views

DALI : How commissioning process takes place in DALI system -2?

Broadcast control commands are working properly. But, I am not able to get the response from Dali Driver, for broadcast query or special commands. And also I am not able to set short address for the ...
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1answer
1k views

DALI schematic: help to analize reception circuit and limited current supply

I am trying to understand how this schematic works. It is a physical layer implementation of the DALI specification. The schematic is in this document (page 11). I have mainly two questions: In ...
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1answer
956 views

DALI specification: help to understand the physical layer schematic

I am trying to understand an NXP circuit that has implemented the physical layer of the DALI specification. In particular, it is DALI master hardware. For the transmission (page 4), it says exactly: ...
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1answer
2k views

DALI Multi-Master: How to design a multi-master system? Is it part of DALI standard?

This question is haunting me for a long time. This could be something very basic and I do not know how it works or could be some misunderstanding! I am now using STM32E407 as DALI master and am ...
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1answer
947 views

DALI Protocol: Is it valid to include this for manchester decoding convenience?

Understanding: DALI uses Async data decoding using 1 start bit and 2 stop bits. The 1 start bit is logical one (1), also encoded during Manchester encoding and the 2 stop bits(Signal is HIGH for long ...