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 DAPC Control not working [closed]

I am using Osram constant current LED power supply to dimm led lights using DALI. I have functional program with dimming using DALI DAPC commands. Dimming in range 100-255 is okay and works as it ...
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DALI - DT8 - CCT Control command

I made the below code for setting CCT in DALI DT8 drivers as per the discussion on DALI 209 - Device Type 8 - CCT control and DALI DT6-DT8 Sending commands above 255 The DTR setting is working ...
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DALI DT6-DT8 Sending commands above 255

From my understanding and research, each DALI command consists of 2 8 bit parts one for addressing and one for the commands which are sent one by one, but there are commands above 255 which are more ...
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Why do almost all DALI master circuits calls for using an interrupt pin for RX?

I was searching for the DALI communication part for Dali Master Design and almost all designs use opto isolation circuits (which vary differently in components) and use MCU interrupt pin for DALI ...
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How can a DALI power supply handle shorting

I'm trying to understand how a DALI power supply can handle being shorted, when a controller is transmitting a signal. The AN1465 application node helped a lot with understanding a usage, but I'm ...
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DALI 209 - Device Type 8 - CCT control

I am new to DALI lighting control. trying to develop atmega based master controller especially for device type 8 (DT8). my main goal is color temperature adjustment. I am going through IEC 62386-209. ...
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Keep microcontroller running for 450 us after power supply stops

I'm trying to power a microcontroller off a DALI communication bus. The bus voltage is 16V and is being regulated to 3.3V by a TS2950 to run the Attiny2313. The current draw from the circuit is ...
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Dali device discovery [closed]

How can we discover the DALI devices in a DALI bus? What is the command? What is the reply from devices for the command? If possible can you provide me a suitable resource where I can research more on ...
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DALI DT8 tunable white control - novice in need of help!

Completely new to DALI, and I need to control a tunable white luminaire. I have a Hasseb USB to DALI interface (http://www.hasseb.fi/shop2/index.php?route=product/product&product_id=50), which ...
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What is the point of the Zener diode in this schematic?

I looked at DALI application node and stumbled upon this circuit. Everything but the Zener diode D4 makes sense. What is the function of D4?
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How to send out signal on two wires

I have two wires for a DALI communication bus. The voltage between them is 16V and I want to send out commands on the two wires from the bus. My guess would be to have a simple transistor between the ...
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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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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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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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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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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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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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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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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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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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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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1 vote
1 answer
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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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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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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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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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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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1 answer
131 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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1 answer
103 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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1 answer
326 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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304 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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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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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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2 votes
1 answer
605 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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2 answers
297 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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3 votes
1 answer
378 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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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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1 vote
1 answer
544 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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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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2 answers
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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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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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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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2 votes
2 answers
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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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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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2 votes
1 answer
360 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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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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1 vote
1 answer
287 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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5 votes
1 answer
684 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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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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234 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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476 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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