ICP DAS USA DGW-521 User manual

DGW-521
User Manual
Warranty
All products manufactured by ICP DAS are under
warranty regarding defective materials for a period of one year
from the date of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from
the use of this product. ICP DAS reserves the right to change
this manual at any time without notification. The information
furnished by ICP DAS is believed to be accurate and reliable.
However, no responsibility is assumed by ICP DAS for its use,
or for any infringements of patents or other rights of third
parties resulting from its use.
Copyright
Copyright 2014 ICP DAS. All rights reserved.
Trademark
The names used for identification only may be registered
trademarks of their respective companies.
Date: 2014/9/15
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Table of Contents
1. Introduction..........................................................................................................3
1.1 More Information........................................................................................4
1.2 Terminal Assignment..................................................................................5
1.3 Specifications ..............................................................................................6
1.4 Dimensions..................................................................................................8
1.5 Jumper Setting.............................................................................................9
1.6 Quick Start.................................................................................................11
1.7 Default Settings.........................................................................................12
1.8 USB Driver Installation.............................................................................13
1.9 DALI Commands......................................................................................15
1.9.1 Find all DALI devices on the DALI bus.........................................15
1.9.2 Allocate address to DALI device ....................................................15
1.9.3 Change address of a DALI device...................................................16
1.9.4 Send DALI command......................................................................16
1.10 Configuration Tables...............................................................................18
1.11 Protocol Switching..................................................................................20
1.12 Technical Support....................................................................................21
2. DCON Protocol..................................................................................................22
3. Modbus Protocol................................................................................................27
3.1 Address Mappings.....................................................................................28
4. Troubleshooting .................................................................................................32
4.1 Communicating with the module..............................................................33
A. Appendix ...........................................................................................................34
A.1 INIT Mode................................................................................................34
A.2 Dual Watchdog Operation........................................................................36
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1. Introduction
The DGW-521 is a communication gateway between the
Modbus RTU/DCON and the DALI (Digital Addressable
Lighting Interface) protocols, and allows a host PC, PAC, or
TouchPAD to access DALI devices by providing three
interfaces that enable conversion from RS-232/RS-485/USB to
DALI. The module provides a built-in DALI power supply that
can be enabled or disabled via a switch. DALI is an
international standard for lighting control interfaces, and is
suitable for DALI lighting systems covering small areas. The
maximum length of the DALI signal cables cannot exceed 300
m.
The features of the DGW-521 are as follows:
1. Conversion between RS-485/RS-232/USB and DALI
Interfaces
2. Easy Deployment: The ID Code can be written by the RS-
485 Interface
3. Simplified Wiring Process
4. Built-in DALI Power can be enabled or disabled using a
Switch
5. 1500 VDC Isolation
6. ±4 ESD Protection for the RS-232/485/USB Data Line
7. ±4 kV EFT Protection and ±2 kV Surge Protection for
Power Line
8. DIN-Rail Mounting
9. Wide Operating Temperature Range: -25 °C ~ +75 °C
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1.1 More Information
For details of INIT mode operation, please refer to Section
A.1 INIT Mode.
For details of module watchdog and host watchdog, please
refer to Section A.2 Dual Watchdog Operation.
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1.2 Terminal Assignment
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1.3 Specifications
Interface
Connector 2-pin Terminal Block
Baud Rate (bps) 1200
Isolation 1500 VDC
DALI
Build-in DALI power DC 16 VDC ± 5%, max. current 250 mA
(Enabled/Disabled via a switch)
COM Port RS-485/RS-232
Connector 3-pin Terminal Block(D+, D-, GND), Jumper
Selectable
Transmission
Distance (m) Depends on Baud Rate
Baud Rate (bps) 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200
UART
Protocol DCON, Modbus RTU
Connector USB Type B
Transmission Speed 12M bps
Specification USB 1.1 and USB 2.0 standard compatible
OS Support Windows XP (32/64 bit), Windows 7 (32/64
bit)
USB
Protocol DCON and Modbus RTU via virtual COM port
LED Indicators
Round LED PWR/RUN/ERR LED
EMS Protection
ESD (IEC 61000-4-2) ±4 kV contact for Each Terminal, ±8 kV Air
for Random Point
EFT (IEC 61000-4-4) ±4 kV for Power Line
Surge (IEC 61000-4-5) ±2 kV for Power Line
Power
Power Supply Unregulated +10 VDC ~ +30 VDC
Connector 3-pin Terminal Block
Protection Power Reverse polarity protection,
Overvoltage Brown-out Protection
Consumption 6 W.
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Mechanical
Casing Plastic
Flammability Fire-Retardant Materials (UL94-V0 Level)
Dimensions (L x W x H) 107 mm x 72 mm x 57 mm
Installation DIN-Rail Mounting
Environment
Operating Temperature -25 °C ~ +75 °C
Storage Temperature -30 ~°C +80 °C
Humidity 10 %~ 95% RH, Non-condensing
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1.4 Dimensions
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1.5 Jumper Setting
Note: To access the jumper, the cover must be opened.
For DGW-521 the RS-485 terminals are shared with the RS-232
terminals. The functionality of the terminals is set using the JP4
jumper. The position of the JP4 jumper is shown in the figure
below.
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The settings for the JP4 jumper are as follows.
The terminals are used for
RS-485 communication.
(factory default)
The terminals are used for
RS-232 communication.
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1.6 Quick Start
Please refer to the Quick Start for DGW-521.
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1.7 Default Settings
Default settings for the DGW-521 are as follows:
。Protocol: Modbus RTU
。Module Address: 01
。Baud Rate: 9600 bps
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1.8 USB Driver Installation
To connect the DGW-521 via the USB port, the USB driver
must be installed. The driver installation file can be
downloaded from ICP DAS web site
http://ftp.icpdas.com.tw/pub/cd/usb_tm/napdos/dgw-521/ or the
accompany CD. The installation procedure is as follows:
1. Execute icpusbconverter_drvinst_v1.x.exe to install the
necessary driver files to the system.
2. Plug in the DGW-521 to the USB port and Windows will
detect the new device and shows the message “Found New
Hardware Wizard” screen prompting you to install the driver
for the detected USB Device. Please select “No, not this
time” option and click “Next” button.
3. Select “install from a list or specific location (Advanced)”
option and click “Next” button.
4. Select “Search for the best driver in these locations” option
and check “include this location in the search:” checkbox
and click “Browser” button to assign the DGW-521 driver
location - C:\WINDOWS\inf\ and then click “Next” button.
5. Click “Continue Anyway” button.
6. Click “Finish” button to complete DGW-521 device driver
installation.
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If the driver is installed successfully, then there will be a
“Virtual COM Port” assigned by Windows. Please follow the
below steps to check it.
Click “Start” -> “Settings” -> “Control Panel” and then double
click on the “System” icon. Once the “System Properties”
screen displayed, click on ” Hardware” tab and then click on the
“Device Manager” button. Double-click on Ports (COM & LPT)
item. If the device driver was correctly installed, you can find
the “ICPDAS DGW-521 USB2DALI” device listing and the
“Virtual COM Port” number that Windows has assigned to the
device is COM6, for example.
Note: If you have more than one DGW-521 connected to the
same system, then the USB ID of the modules should be set to
different. The USB ID is set by the rotary switch as shown
below.
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1.9 DALI Commands
DALI (Digital Addressable Light Interface) is a protocol used
for lighting control. It can support up to 64 DALI devices on a
DALI bus, up to 16 scenes and up to 16 groups. The following
sections summarize some DALI commands used frequently.
For details of the commands, please refer to Section 2 and 3.1.
1.9.1 Find all DALI devices on the DALI bus
To find all of the DALI devices on the DALI bus, send the
following command.
DCON @AADF1
Modbus RTU write 1 to register 00259
Send the following command to get the status of the previous
command, until the status is 0, finished.
DCON @AADF
Modbus RTU Read register 00259
Get the presence map of the DALI devices on the DALI bus. A
bit is set to 1 when the corresponding DALI device is present.
DCON @AADP
Modbus RTU Read registers 30289 ~ 30292
1.9.2 Allocate address to DALI device
When you receive a new DALI device, its address may not be
allocated. You can send the following command to allocate
address to it. You can allocate address to either all devices,
device with specified address, or devices without address.
DCON @AADNddff
Modbus RTU write to register 40322
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To get the status of address allocation, send the following
command. The status data is one when the allocation is finished.
DCON @AADN
Modbus RTU Read register 40322
1.9.3 Change address of a DALI device
To change the address of a DALI device which address is
allocated, send the following command.
DCON @AADRoonn
Modbus RTU write to register 40321
To get the status of changing address, send the following
command. When it is finished, the status data is one.
DCON @AADR
Modbus RTU Read register 40321
1.9.4 Send DALI command
The DGW-521 can accept 8 DALI commands and the
commands to DALI devices in sequence. The following
command is used to send DALI command.
DCON @AADCnddcc
Modbus RTU write to one of the register 40033 ~ 40040
The command data format is the same as the standard DALI
command, that is, the first byte is address byte and the second
one is data byte.
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Address byte format:
7 6 5 4 3 2 1 0
CB A5 A4 A3 A2 A1 A0 SB
Key Description
CB Address Classification Bit
0: A5 ~ A0 specifies the device address
1: A5 ~ A0 is 111111 for broadcasting
A5 ~ A4 is 11, A3 ~ A0 specifies the group
address
SB Select Bit
0: the data byte specifies the lamp power
1: the data byte specifies the command
To get the status of the DALI command execution, send the
following command. A bit is set to one when the corresponding
DALI command is finished.
DCON @AADE
Modbus RTU Read register 30257
When a DALI command is finished and it should have response,
the following command can be sent to get the response.
DCON @AADSn
Modbus RTU Read one of the register 30001 ~ 30008
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1.10 Configuration Tables
Baud Rate Setting (CC)
7 6 5 4 3 2 1 0
Data Baud
Key Description
Baud Baud Rate
03: 1200
04: 2400
05: 4800
06: 9600
07: 19200
08: 38400
09: 57600
0A: 115200
Data Data Format
0: eight data bits, no parity, and one stop bit
1: eight data bits, no parity, and two stop bit
2: eight data bits, even parity, and one stop bit
3: eight data bits, odd parity, and one stop bit
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Data Format Setting (FF)
7 6 5 4 3 2 1 0
RS CS RS
Key Description
CS Checksum setting
0: Disabled
1: Enabled
RS Reserved.
Note: The reserved bits should be zero.
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1.11 Protocol Switching
To switch to the DCON protocol:
1. Set the Modbus register 00257 to zero.
2. After a power-on reset, the communication protocol will be
changed to DCON.
To switch to the Modbus RTU protocol:
1. Sends the $AAPN command and set N to a value of 1.
Note that for the DGW-521, the INIT switch of the module
should be set to the INIT position, see the figure shown
below.
2. After a power-on reset, the communication protocol will be
changed to the Modbus RTU protocol.
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