Modbus / BACnet IP Gateway
GT200-BM-2RS
909-977-2988
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The GT200-BM-2RS gateway seamlessly connects Modbus RTU devices to BACnet IP networks, with support for a wide range of Building Management System (BMS) controller manufacturers such as Johnson Controls, Honeywell, and Carrier. This gateway features two (2) independent RS485 serial ports, making it easy to integrate your Modbus devices into your BACnet network with greater flexibility and control over your system.
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Technical Specification
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Order Information
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Quick Start Guide
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Technical Specification:
- Protocol conversion between BACnet/IP and Modbus.
- Ethernet self-adaptive, IP address conflict detection, automatic routing function.
- Provides online scanning and configuration.
- BACnet IP can realize some services such as: Who Is, I Am, Who Has, I Have, Read Property, Write Property,Read Property Multiple.
- Supports at most 500 BACnet BI, 300 BO, 300 BV, 500 AI, 300 AO, 300 AV, 500 MSI and 100 MSO.
- Each serial support at most 100 commands.
- The two serial ports are RS485 interface, half duplex, baud rate: 9600, 19200, 38400, 57600, 115200bps optional, check bit: none, odd, even, mark and space optional, 1 or 2 bit stop bit optional.
- 1KV galvanic isolated on each RS485 interface.
- Redundant dual power input.Power supply: 24VDC (11V-30V), 90mA (24VDC).
- Operating Temp: -4°F to 140°F (-20 °C to 60 °C); Rel. Humidity: 5%-95% (non-condensing).
- Dimension (W*H*D): 1.33 in*4.56 in*4.21 in (34mm*116mm*107mm).
- Mounting: DIN Rail Mounting (35mm).
- Easy-to-use configuration software SST-BM-CFG.
File | Type | Time | Download |
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Hardware Connection
- Install the gateway on 35 mm / 13.8 in DIN Rail.
- Connect the power to the power supply.
Please do not power on the devices before finishing and confirming all the connections.
Optional: Connect power supply II for backup redundancy. - Connect Modbus serial devices using the RS-485 interfaces.
- Connect the GT200-BM-2RS with your computer via Ethernet cable.
- With the configuration switches located on the bottom of the gateway, set both Bit 1 and Bit 2 to 0.
- Power on the GT200-BM-2RS.
Software Configuration
Download, install, and run the configuration software, SST-BM-CFG. For more details, see Chapter 5 of the manual.
- Upload the setting from the gateway by clicking "Search Equipment" on the left. Find the GT200-BM-2RS gateway on the list, click it and click "Configuration" on the left.
Note: If you cannot find the GT200-BM-2RS gateway, check your Hardware configuration or your network configuration. This is a default configuration created by SST Automation. If you would like to create a configuration from the beginning simply click "New". - Click "BACnet IP Server" under the Device Window and configure the settings to your needs under the Configuration Window.
- Click the"Modbus Master" of choice under the Device window to configure the Modbus Master. (User Manual 5.3.2)
- To add a node, right click the Modbus Master you wish to add the node to and proceed to click the "Add Node" operation.
Then configure the node. (User Manual 5.3.3) - To add a command, right click the node you wish to add the command to and proceed to click the "Add Command" operation. Double click on the commands you wish to add to the Node.
Configure the command (User Manual 5.3.3) - Once configuration is complete, click "Download" to download your configuration into GT200-BM-2RS.
Note: To reset GT200-BM-2RS, you can either disconnect it from power or remotely reset it in the SST-BM-CFG software: select it, and select Remote Reset. - Test the communication.
For more information, please refer to the User Manual for GT200-BM-2RS.