DALI Gateway Module User Manual

Product Introduction

CY-DALI64A is a single channel DALI gateway module that supports DT6 and DT8 protocols. It can control 16 sets of 64 drivers, has debugging and control serial ports, supports multiple driver types DIM/CW/RGB/RGBW/RGBWA, and is installed in a 35mm rail style.

Function Description:

• Built in DALI bus power supply, providing 16V voltage and a maximum supply current of 250mA for the DALI bus
• Equipped with 2 LED indicator lights, it can directly determine the working status of gateway devices
• Equipped with one manual DALI driver device installation and testing button, which can manually test the switch status of the testing device
• Equipped with RS485 control serial port and supporting Modbus RTU to DALI communication protocol
• Equipped with RS485 debugging serial port, it can connect to a PC and debug and configure the DALI system through DALI upper computer debugging software
• Debugging and controlling serial communication rate of 9600 baud rate, supporting up to 1200 meters, convenient for debugging and control

1. Product interface diagram

2. Product dimension diagram

3. Single system diagram

4. Multi system diagram

DALI gateway wiring tutorial

DALI gateway software operation instructions

Communication Protocol Format

1. Communication Format Description

• 9600, N, 8, 1 (fixed and unchangeable)
• Frame Interval Time ≥ 150ms (longer data length, slower response)
• Slave Address Range: 01H-3FH (set by dial)
• Standard Modbus RTU Protocol
• Supports group address control, supports short address control, supports short address online status and fault status query
• Group Address Register Address Range: 0001H-0080H
• Short Address Register Address Range: 0081H-0280H
• Short Address Online Status Register Address Range: 0281H-028484 H
• Short address fault status register address range: 0285H-0288H
• Scene call register address: 028AH (only supports 06 function code)
• Read up to 125 registers at once
• 8 register addresses are grouped into 1 group or 1 short address, respectively (gradient, brightness, color temperature, R, G, B, W, A)
• Support 03H 06H 10H function codes

Note: DALI devices take about 30 seconds to power on and start.
Note: Short address and driver have the same meaning
Note: When writing multiple registers (RGB type) with 0x10 function code, gradient time+brightness+color temperature (0xFF)+R+G+B+W+A, 8 registers need to be written continuously

2. Register definition explanation

Dimming gradient time definition: DALI gradient time has a total of 16 levels

Register Address Type Value Range

3. Function Code 03H/06H/10H Description

3.1 Function Code 03H Description

Host ->Slave Sending: 01 03 00 02 00 02 65 CB
Host<- Slave Receiving: 01 03 04 00 FE 00 41 5B F3

Host ->Slave Sending Instruction Definition:
First Byte 01H - DALI Gateway Device Address (determined by device ID dialing)
Second Byte 03H - Modbus Function Code, reads the value of a single register or multiple registers
Third and Fourth Byte 0003H - Read the value of a register starting from the position of the 0003H register
Fifth and Sixth Byte 0002H - Read the value of a register starting from the specified register in the third and fourth bytes
The 7th and 8th bytes 65CBH - are the checksum bytes (CRC16 high and low bits) for the frame data

Host<- Slave receives instruction definition:
1st byte 01H - DALI gateway device address (determined by device ID dialing)
The second byte is the 03H Modbus function code, which reads the value of a single register or multiple registers
. The third byte is 04H, and the DALI gateway returns a total of 4 bytes of data
The 4th and 7th bytes 00020042H - ALI gateway returns a total of 4 bytes of data
The 8th and 9th bytes 65CBH - are the checksum bytes (CRC16 high and low bits) of the frame data

3.2 Function code 06H description

Host ->Slave sends: 01 06 00 03 00 41 B9 FA
Master<- Slave receives: 01 06 00 03 00 41 B9 FA

Host ->Slave sends instruction definition:
The 1st byte 01H - ALI gateway device address (determined by device ID dialing)
The 2nd byte Byte 06H Modbus function code, write the value of a single register
, 3rd and 4th bytes 0003H - write the value of the register from the position of 0003H
, 5th and 6th bytes 0041H - write the 0041H value from the register specified in bytes 3,4
, 7th and 8th bytes B9FAH - check byte (CRC16 Host<- Slave receiving instruction definition:

Host<- Slave receives instruction definition:
The first byte is 01H-DALI gateway device address (determined by device ID dialing)
The second byte is 06H Modbus function code, which writes the value of a single register
The third and fourth bytes are 0003H - write the value of the register from the position of 0003H
The fifth and sixth bytes are 0041H - write the 0041H value from the register specified in the third and fourth bytes
The seventh and eighth bytes are B9FAH - check bytes (CRC16 high and low bits) for this frame of data

3.3 Function code 10H Description

Host ->Slave Send: 01 10 00 01 00 02 04 00 01 00 FE E2 23
Host<- Slave Reception: 01 10 00 01 00 02 10 08

Host ->Slave Sending Instruction Definition:
First Byte 01H - DALI Gateway Device Address (determined by device ID dialing)
Second Byte 10H - Modbus Function code, write multiple register values at once
3rd and 4th bytes 0001H - Write one register value at a time starting from the 0001H register position
5th and 6th bytes 0002H - Starting from the register positions specified in bytes 3 and 4, write the values of two registers at once
7th byte 04H - The total number of bytes to be written is 8 (2 registers * 2)
8th and 9th bytes - The first register writes the value 0001H, and the second register writes the value 00FEH
10th and 11th bytes E223H - are the checksum bytes (CRC16 high and low bits) of the data frame

Host<- Slave instruction definition:
1st byte 01H - DALI gateway device address (determined by the device) ID dip decision)
2nd byte 10H Modbus function code, write multiple register values at once
3rd and 4th bytes 0001H - write one register value at a time starting from the 0001H register position
5th and 6th bytes 0002H- Starting from the register positions specified in bytes 3 and 4, write the values of two registers at once
. The 7th and 8th bytes 1008H - are the checksum bytes (CRC16 high and low bits) of the frame data

. 4. Group Address Register Address Table

4.1 Write group address gradient time and brightness register instruction (10H function code)

4.2 Write group address gradient time and brightness+color temperature register instruction (10H function code)

4.3 Write Group Address Color Temperature Register Instruction (Function Code 06H)

4.4 Read Group Address Brightness Color Temperature Register Status (Function Code 03H)

5. Single Lamp (Short Address Number) Register Address Table

5.1 Write Short Address Gradient Time and Brightness Register Instruction (10H Function Code)

5.2 Write Short Address Gradient Time and Brightness+Color Temperature Register Instruction (10H Function Code)

5.2 Write Short Address Color Temperature Register Instruction (06H Function Code)

5.3 Read Short Address Brightness Color Temperature Register Status (03H Function Code)

Online status register address table

The online status synchronization function of DALI is mainly achieved through the following two methods:

(1) Instant status synchronization
When searching or configuring DALI drivers, the system will immediately perform an online status synchronization. During this process, the DALI gateway will send a status query command to the specified DALI device (i.e. driver) and synchronize the received device's online status to the corresponding register address. This method ensures that when a device is added or configured, its online status can be updated and recorded in real-time.
(2) Periodic Status Scanning
The system also automatically scans the online status of 64 DALI devices within a short address range every 10 minutes. During this cycle, the DALI gateway will sequentially send status query commands to these addresses and collect replies from each device. Subsequently, the gateway will synchronize the collected online status information to the corresponding register address. This approach ensures that the system can regularly monitor and update the online status of all DALI devices, thereby maintaining an accurate online status table.
Maintenance of Online Status Table
It is worth noting that the DALI protocol itself does not define specific status codes to represent the online status of devices. On the contrary, this function is implemented by the DALI gateway itself. The gateway will maintain an online status table to record and manage the online status of each DALI device. This table will be updated based on the results of real-time status synchronization and periodic status scanning to ensure its accuracy and real-time performance

Read online status register status (function code 03H)

Fault status register address table

Description:There is no specific code in the DALI protocol that directly represents the fault status of lighting fixtures, but the protocol supports the function of querying the status of lighting fixtures, including possible fault situations.
The DALI protocol is a digital addressable lighting control protocol that allows for configuration and status queries of lighting devices. Through the DALI protocol, the system can send commands to read the status information of lamps or drivers, which may include the current brightness, color temperature, power level, etc. of the lamps, as well as whether the lamps are in a fault state. However, the DALI protocol itself does not define a dedicated code to directly indicate lighting faults. On the contrary, it provides a mechanism for the system to determine the status of lighting fixtures by sending status query commands and receiving responses. If the lighting fixture does not respond to commands as expected, or the response data indicates that its working status is abnormal (such as output illumination far below the set value, or internal errors reported by the driver, etc.), the system can determine that the lighting fixture may have a fault.
Therefore, in DALI systems, determining the fault status of lighting fixtures is usually achieved by comprehensively analyzing the response data and other relevant information of the fixtures, rather than relying on a specific fault code. ‌

Read the status of the fault status register (function code 03H)

8. Scene call register address table
Note: When the high bit of the data is FF, no gradient time will be issued, only the scene will be called.

8.1 Writing Scene Call (06H Function Code)

Note: When calling a scene, the gradient time of the short address in the current scene will be changed when the gradient time is issued. The gradient time is stored in the driver. If the gradient time is FF (high data bit), the scene will not issue the gradient time and only trigger the scene.

Product purchase:https://item.taobao.com/item.htm?ft=t&id=844733977694