GT200-BM-MT Modbus TCP BACnet IP Gateway

Product Information

Specifications

[1] Data communication between BACnet IP and Modbus TCP. [2] Supports up to 500 BACnet BIs, 300 BOs, 300 BVs, 500 AIs, 300AOs, 300 AVs, 500 MSIs and 100MSOs. [3] Supported BACnet IP services: Who Is, I Am, Who Has, I Have, Read Property, Write Property, Read Property Multiple. [4] Supports 3 types of output modes: Change of Value, Cycle and Forbidden. [5] Supports up to 36 Modbus TCP connections.

Product Usage Instructions

Hardware Installation

Follow the steps below for hardware installation:

1. Refer to the Mechanical Dimension section for the physical dimensions of the gateway.
2. Install the gateway using the Installation Method provided in the manual.

How to Start

Follow these steps to start using the product:

1. Make the necessary Hardware Connections as outlined in the manual.
2. Configure the software settings by following the Software Configuration instructions.

FAQ

Q: Can I connect multiple Modbus TCP server stations to a BACnet IP network using GT200-BM-MT?

A: Yes, GT200-BM-MT can connect multiple Modbus TCP server stations to a BACnet IP network and establish reliable communication channels between them.

Q: What are the supported BACnet IP services?

A: The supported BACnet IP services include Who Is, I Am, Who Has, I Have, Read Property, Write Property, and Read Property Multiple.

Modbus TCP / BACnet IP Gateway GT200-BM-MT User Manual V 1.4 SST Automation Email: support@sstautomation.com www.SSTAutomation.com Important Information Warning The data and examples in this manual cannot be copied without authorization. SST Automation reserves the right to upgrade the product without notifying users. The product has many applications. The users must make sure that all operations and results are in accordance with the safety of relevant fields, and the safety includes laws, rules, codes and standards. Copyright Copyright © 2024 by SST Automation. All rights reserved. Trademark is the registered trade mark of SST Automation. Technical Support Contact Information www.sstautomation.com Email: support@sstautomation.com www.SSTAutomation.com Table of Contents 1 Product Overview ……………………………………………………………………………………………………………………………………1 1.1 Product Function ………………………………………………………………………………………………………………………….. 1 1.2 Product Features …………………………………………………………………………………………………………………………… 1 1.3 Technical Specifications …………………………………………………………………………………………………………………1 1.4 Revision History ……………………………………………………………………………………………………………………………2 2 Hardware Descriptions ……………………………………………………………………………………………………………………………. 3 2.1 Product Appearance ……………………………………………………………………………………………………………………….3 2.2 LED Indicators …………………………………………………………………………………………………………………………….. 3 2.3 DIP Switch ……………………………………………………………………………………………………………………………………4 2.4 Interfaces …………………………………………………………………………………………………………………………………….. 4 2.4.1 Power Interface ………………………………………………………………………………………………………………….. 4 2.4.2 Ethernet Interface ……………………………………………………………………………………………………………….. 5 3 Hardware Installation ……………………………………………………………………………………………………………………………… 6 3.1 Mechanical Dimension …………………………………………………………………………………………………………………..6 3.2 Installation Method ………………………………………………………………………………………………………………………. 7 4 How to Start ……………………………………………………………………………………………………………………………………………8 4.1 Hardware Connection …………………………………………………………………………………………………………………….8 4.2 Software Configuration …………………………………………………………………………………………………………………. 8 5 Software Instructions ……………………………………………………………………………………………………………………………..10 5.1 Notes before Configuration …………………………………………………………………………………………………………..10 5.2 User Interface …………………………………………………………………………………………………………………………….. 11 5.3 Operation of Devices View ………………………………………………………………………………………………………….. 13 5.3.1 Devices View Interface ……………………………………………………………………………………………………… 13 5.3.2 Operation Method of Device View ……………………………………………………………………………………… 13 5.3.3 Operation Types of Device View ………………………………………………………………………………………… 13 5.4 Operation of Configuration View …………………………………………………………………………………………………..14 5.4.1 BACnet IP Server Configuration ………………………………………………………………………………………… 14 5.4.2 Modbus TCP Client Configuration ……………………………………………………………………………………… 16 5.4.3 Node Configuration ……………………………………………………………………………………………………………17 5.4.4 Command Configuration …………………………………………………………………………………………………….17 5.4.5 Comment View ………………………………………………………………………………………………………………….20 5.5 Tool …………………………………………………………………………………………………………………………………………… 20 5.5.1 Search Equipment …………………………………………………………………………………………………………….. 21 5.5.2 Auto Assign ……………………………………………………………………………………………………………………… 23 5.5.3 Export Excel ……………………………………………………………………………………………………………………..24 5.5.4 Upload Configuration …………………………………………………………………………………………………………25 5.5.5 Download Configuration …………………………………………………………………………………………………….26 www.SSTAutomation.com 5.5.6 Locate ……………………………………………………………………………………………………………………………… 27 5.5.7 Remote Reset …………………………………………………………………………………………………………………….28 5.6 Save and Open Configuration ………………………………………………………………………………………………………. 29 5.6.1 Save Configuration Project ………………………………………………………………………………………………… 29 5.6.2 Open Configuration Project ……………………………………………………………………………………………….. 29 6 Typical Application ………………………………………………………………………………………………………………………………. 30 www.SSTAutomation.com 1 Product Overview 1.1 Product Function GT200-BM-MT is a gateway which can exchange data between Modbus TCP servers and a BACnet IP client. It can connect multiple Modbus TCP server stations to BACnet IP network and establishes a reliable communication channel between them. 1.2 Product Features Easy to Use: Users can refer to the product manual to quickly configure a data connection that meets their needs. Wide Applications: Any device with a Modbus TCP interface can be connected to a BACnet/IP network through the GT200-BM-MT gateway. 2 Ethernet ports, Ethernet 10/100M (auto-negotiating), supports daisy chain connection, built-in Ethernet switch function. Supports DHCP and static configuration. Supports configuration software device locate and device reset functions. Supports configuration software remote configuration function. Easy-to-use configuration software SST-BM-CFG. 1.3 Technical Specifications [1] Data communication between BACnet IP and Modbus TCP. [2] Supports up to 500 BACnet BIs, 300 BOs, 300 BVs, 500 AIs, 300AOs, 300 AVs, 500 MSIs and 100MSOs. [3] Supported BACnet IP services: Who Is, I Am, Who Has, I Have, Read Property, Write Property, Read Property Multiple. [4] Supports 3 types of output modes: Change of Value, Cycle and Forbidden. [5] Supports up to 36 Modbus TCP connections. www.SSTAutomation.com 1 [6] Supports up to 128 Modbus commands. [7] Supports modification of BACnet engineering units. [8] Power supply: 24VDC (11V – 30V), 90mA (24VDC). [9] Operating temperature: -4°F to 140°F (-20ºC to 60 ºC), relative humidity: 5% – 95% (non-condensing). [10] External dimension (W*H*D): 1.33 in*4.56 in*4.21 in (34mm*116mm*107mm). [11] Installation: 1.4in (35mm) DIN rail. [12] Protection class: IP20. [13] Test standard: EMC test standards. 1.4 Revision History Revision V1.4 V1.2 Date 8/1/2024 12/15/2022 Chapter PART All Description New release for supporting modification of BACnet engineering units. New release www.SSTAutomation.com 2 2 Hardware Descriptions 2.1 Product Appearance DIP Switch Indicators Ethernet Interface Power Interface Note: This picture is for reference only. The product appearance is subject to the actual product. 2.2 LED Indicators Indicators BIS MTS BIS&MTS Orange State Green On Red On Red Blinking Green On Green Blinking Red Blinking for 3 seconds Simultaneously on Blinking alternately Blinking alternately (5 seconds) BIS on, MTS off Description BACnet IP interface data is received or transmitted BACnet IP interface data is not received or transmitted DHCP At least one Modbus TCP connection has been established Modbus TCP no connection Modbus TCP connection is disconnected Start status Configuration Mode Using locate function Firmware update mode www.SSTAutomation.com 3 2.3 DIP Switch The configuration DIP switch is located on the bottom of the gateway. Bit 1 is the function bit, and Bit 2 is the mode bit. Off Function (Bit 1) Off Off On On Mode (Bit 2) Off On Off On On 1 2 Mode Description Run mode Configuration mode Run mode Firmware update mode Allows configuration and communication. IP address is fixed at 192.168.0.10. Allows configuration. Prohibits communication. Allows communication. Prohibits configuration. IP address is fixed at 192.168.0.10. This mode can only update firmware. Note: To apply mode switching, please restart the gateway. 2.4 Interfaces 2.4.1 Power Interface The GT200-BM-MT gateway uses a 24V DC power supply. 1 GND 2 NC 3 24V+ Pin Description 1 GND 2 NC (Not Connected) 3 24V+, DC www.SSTAutomation.com 4 2.4.2 Ethernet Interface The Ethernet interface uses an RJ-45 connector and follows the IEEE802.3u 100BASE-T standard. Its pinout (standard Ethernet signal) is defined as below: Pin Description S1 TXD+, Tranceive Data+, Output S2 TXD-, Tranceive Data-, Output S3 RXD+, Receive Data+, Input S4 Bi-Directional Data+ S5 Bi-Directional Data- S6 RXD-, Receive Data-, Input S7 Bi-Directional Data+ S8 Bi-Directional Data- www.SSTAutomation.com 5 3 Hardware Installation 3.1 Mechanical Dimension Size (width * height * depth): 1.33 in * 4.56 in * 4.21 in (34 mm * 116 mm * 107 mm) www.SSTAutomation.com 6 3.2 Installation Method Using 1.4 in (35 mm) DIN RAIL. www.SSTAutomation.com 7 4 How to Start 4.1 Hardware Connection 1. Connect the power to the power supply. Please do not power on the devices before finishing and confirming all the connections. 2. Connect the GT200-BM-MT gateway with your computer via Ethernet cable. 3. With the configuration switches located on the bottom of the gateway, set both Bit 1 and Bit 2 to 0 (OFF). 4. Power on the GT200-BM-MT. 4.2 Software Configuration Download, install, and run the configuration software, SST-BM-CFG. For more details, see Chapter 5 of the manual. 1. Upload the setting from the gateway by clicking “Search Equipment” on the left. Find the GT200-BM-MT gateway on the list, click it and click “Upload” on the left. Note: If you cannot find the GT200-BM-MT gateway, check your Hardware configuration or your network configuration. Refer to the note How to Use the Ping Command. This is a default configuration created by SST Automation. If you would like to create a configuration from the beginning simply click “New”. 2. Click “BACnet IP Server” under the Device Window and configure the settings to your needs under the Configuration Window. 3. Click the”Modbus TCP” of choice under the Device window to configure the Modbus TCP Master. (Chapter www.SSTAutomation.com 8 5.3.2) 4. To add a node, right click the Modbus TCP you wish to add the node to and proceed to click the “Add Node” operation. Then configure the node. (Chapter 5.3.3) 5. 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 (Chapter 5.3.3) 6. Once configuration is complete, click “Download” to download your configuration into GT200-BM-MT gateway. Note: To reset the GT200-BM-MT gateway, you can either disconnect it from power or remotely reset it in the SST-BM-CFG software: select it, and select Remote Reset. 7. Test the communication. www.SSTAutomation.com 9 5 Software Instructions Double click the software application and install the configuration software SST-BM-CFG. Follow the prompts to complete the installation, then open the installed configuration software and begin to configure the GT200-BM-MT gateway. Note: The factory network setting of GT200-BM-MT gateway is DHCP. If your network does not have a DHCP server, the DIP switch should be set to Configuration Mode (Bit 1 OFF, Bit 2 ON) and restart GT200-BM-MT gateway. Then the IP address of GT200-BM-MT gateway will be fixed at 192.168.0.10, the subnet mask will be 255.255.255.0 and the network gateway address will be 192.168.0.1. 5.1 Notes before Configuration SST-BM-CFG is a product based on Windows platform, and used to configure parameters of GT200-BM-RS , GT200-BM-2RS and GT200-BM-MT gateways. Please make sure the user’s computer and the GT200-BM-MT gateways are in the same network segment before you run the software. Double click the icon to access the device selection interface: www.SSTAutomation.com 10 5.2 User Interface SST-BM-CFG interface includes: title bar, menu bar, toolbar, status bar, equipment section, configuration section and notes section. Note: All the gray boxes in the software can not be changed. Menu Bar Title Bar Toolbar Tree View Configuration Window Comment Interface Tool bar interface is shown as below: New: Create a new configuration project. Save: Save the configuration project. Open: Open the configuration project. Add Node: Add a Modbus slave node. www.SSTAutomation.com 11 Delete Node: Delete a Modbus slave node. Add Command: Add a Modbus command. Delete Command: Delete a Modbus command. Upload: Read the configuration information from the module and shown in the software. Download: Download the configuration file to the gateway. Auto Assign: Used to automatically assign the object name. Export EXCEL: Export current configuration to the local hard disk, saved as .xls file. www.SSTAutomation.com 12 5.3 Operation of Devices View 5.3.1 Devices View Interface 5.3.2 Operation Method of Device View The equipment view supports three types of operation: Edit Menu, Edit Toolbar and Right click edit Menu. 5.3.3 Operation Types of Device View 1. Add node: Right click on Modbus TCP to perform the operation of adding a new node. Then there is a new node named “NodeN” under Modbus TCP. 2. Delete node: Right click on the node to be deleted, and then perform the operation of deleting the node. The node and its all commands will be deleted. 3. Add commands: Right click on the node, and then perform the operation of adding command to add a command for the node. The dialog box will be shown as follow: Currently, it supports the commands: 01, 02, 03, 04, 05, 06, 15 and 16. www.SSTAutomation.com 13 Select the command: Double click the command 4. Delete commands: Right click on the command and then perform the operation of deleting the command. 5. Copy node: Left click on the existing node, choose the node and execute the operation of copying node (include all commands under the node). 6. Paste node: Select the Subnet or an existing node and paste the node. The pasted node has the same parameters with the copied node. 5.4 Operation of Configuration View 5.4.1 BACnet IP Server Configuration In the interface of device view, BACnet IP Server, and then the configuration view is shown as follows: Configurable items include: Device Name, Assign IP Mode, IP Address, Subnet Mask, Default Gateway , DNS1, DNS2, BACnet IP Port, Device Instance. www.SSTAutomation.com 14 Device Name: Enter a name used to identify the device in order to distinguish from other devices. Note: The name cannot have spaces, up to 16 characters. Assign IP Mode: Manually Assign and DHCP can be selected. IP Address: Set the device IP address. Subnet Mask: Set subnet mask of the device. Gateway Address: Set gateway address. DNS1: Reserved. DNS2: Reserved. BACnet IP Port: Set the BACnet IP port number of the gateway. Range: 1 – 65535. Default value is 47808. Device Instance: Set device instance number of the gateway. Range: 0 – 4194303. Default value is 100. www.SSTAutomation.com 15 5.4.2 Modbus TCP Client Configuration Protocol Mode: Modbus TCP Client station. As the Modbus TCP Client device, the gateway establishes communication with Modbus TCP server devices. IP Address: The same IP Address with BACnet IP Server. Response Timeout(ms): After the Modbus TCP Client a command, it waits the maximum time for a response from the Modbus server. Range: 300 – 60000ms. Default value is 300ms. Delay between Polls(ms): Delay between polls means delay between a response has been received and sending next request. Range: 0 – 2500ms. Default value is 0ms. Output Mode: Modbus write command output mode. There are three types of output: Change of Value: When the output data change, the write command will be sent. Cycle: In the same way as the Modbus read command output, the write command is sent cyclically. Forbidden: The gateway will not send write command. www.SSTAutomation.com 16 5.4.3 Node Configuration In the interface of device view, left click a node and then configuration interface is shown as follows: Server Address: Modbus TCP server address. Range: 1 – 247. IP Address of Server: IP Address of Modbus TCP Server to access. 5.4.4 Command Configuration www.SSTAutomation.com 17 Function Code: Modbus Function Code. Starting Address: The starting address of register or switching value or loop and so on in Modbus TCP slave and the range is 0-65535. Number of Data: Number of register/switching value/coil in the Modbus TCP Server. Number of Bytes: The number of the data bytes. Read Coil Status: Fill in the number of data and automatically map to BACnet BI (Binary Input). Take the above picture as an example. Read Input Status: Mapped to BACnet BI (Binary Input). Read Holding Register: Mapped to BACnet AI (Analog input) or MI (Multi-state Input). Read Input RegisterMapped to BACnet AI (Analog Input) or MI (Multistate Input). Force Single Coil: Mapped to BACnet BO (Binary Output) or BVBinary Value). Preset Single Register: Mapped to BACnet AO (Analog Output), AV (Analog Value) or MO (Multistate Output). Force Multiple Coil: Mapped to BACnet BO (Binary Output) or BV (Binary Value). Preset Multiple Registers: Mapped to BACnet AO (Analog Output), AV (Analog Value) or MO (multi-state output). www.SSTAutomation.com 18 Object Type: AI and MI optional, default is AI. Object Name: Editable, the maximum data length supported is 12. Data Count: 1 and 2 optional, default is 1 (Map one Modbus register to a BACnet object). Data Type: BOOL, INT16 (signed 16-bit integer data), UINT16 (unsigned 16-bit integer data), INT32 (signed 32-bit integer data), INT32V (INT32 Inverse, contrary to high and low word INT32), UINT32 (unsigned 32-bit integer data), UINT32V (UINT32 Inverse, contrary to high and low word of UINT32), Float, and FloatV (Float Inverse, contrary to high and low word of Float) optional ( different display for different types of BACnet object). Units: BACnet Engineering Units Units – BACnet engineering units, Range:0-236, Default value is 0:square metre. Scale: It can be edit , range: 0.01 to 100, default: 1.0 Read Input Register — Mapping to the BACnet AI (analog input) or MI (multistate input ), you can choose. Force Single Coil — Mapping to the BACnet BO(binary output) or BV(binary value) ,you can choose. Preset Single Register — Mapping to the BACnet AO(analog output), AV(analog value) or MO(multistate output), you can choose. Force Multiple Coils — Mapping to the BACnet BO(binary output) or BV(binary value), you can choose. Preset Multiple Registers — Mapping to BACnet AO(analog output), AV(analog value) or MO(multistate output). www.SSTAutomation.com 19 5.4.5 Comment View The comment view displays comments for the corresponding configuration item. For example, when configuring the number of data, the annotation view is displayed as follows: 5.5 Tool The Tool tab on the menu bar contains the following functions: Auto assign Export Excel Upload configuration Download configuration www.SSTAutomation.com 20 5.5.1 Search Equipment Before configuring parameters, the user will need to search for the gateway using the software. The software provides two ways to search the gateway for the user. Method 1: Search All Equipment of Ethernet Click “Upload” or “Download” button of the main interface and the software will search all of the available devices and list them in the main interface. www.SSTAutomation.com 21 Method 2: IP Search Click “IP Search” button of the main interface will pop up a dialog box, and user need to enter the IP address of the equipment. Enter the correct IP address, the software will search the network for a GT200-BM-MT device with this IP address. www.SSTAutomation.com 22 After finding the device, click OK, and list the information of the equipment in the main interface. Note: If the users select the “IP search”, users need to enter correct IP address or it will not get any devices. 5.5.2 Auto Assign The automatic assign function is to automatically assign the object names to prevent the same object names from being downloaded to the device. Click the “Auto Assign” button in the toolbar, and clicking OK, the object names will be automatically assigned. www.SSTAutomation.com 23 5.5.3 Export Excel Excel document helps users to examine the configuration related. Save the configuration as excel document and choose the right path. Click the “Export Excel” button, save the configuration as excel document and choose the right path. www.SSTAutomation.com 24 5.5.4 Upload Configuration Click “Upload” from the toolbar or menu bar to upload the gateway configuration from the device to the software, and view the specific configuration information of the gateway. Select the device you want to configure and click “Upload”. Gateway configuration will be uploaded to the software from the device. The pop-up window is as follows: www.SSTAutomation.com 25 5.5.5 Download Configuration Click “Download” from the toolbar or menu bar to download the gateway configuration from the software to the device. Click “Download” and click OK, the gateway will automatically restart and the downloaded configuration will take effect. Note: The default IP configuration method of the gateway is DHCP. After power-on or restart, the IP address is automatically obtained through DHCP, and the configuration software can search for the gateway device. www.SSTAutomation.com 26 NoteThe network factory setting for GT200-BM-MT is DHCP. If DHCP fails, the gateway IP will revert back to 192.168.0.10. 5.5.6 Locate When users manage multiple GT200-BM-MT gateways, the “locate” function can be used to determine which device you are configuring. Users click on the “locate” button and the device is still in the network, two orange indicator of the device alternately blinks a few seconds in order to find the device. www.SSTAutomation.com 27 5.5.7 Remote Reset The function of “remote reset” is restarting the selected device. Select the equipment in the list first, click “Remote reset” button, it will pop up a confirmation dialog, then click “OK” to complete the operation. www.SSTAutomation.com 28 5.6 Save and Open Configuration 5.6.1 Save Configuration Project Click the “Save” button on the menu bar or toolbar to save the configured project as .xml file. Menu bar Toolbar 5.6.2 Open Configuration Project Click the “Open” button on the menu bar or toolbar to open the saved.xml file. Menu bar Toolbar www.SSTAutomation.com 29 6 Typical Application GT200-BM-MT gateway can connect Modbus TCP Server devices to BACnet IP network. GT200-BM-MT gateway is a bridge in the communication network and implements the conversation between BACnet IP and Modbus TCP. The following is the typical application of BACnet IP Master connected to Modbus TCP Server. The above chart multi-function energy monitoring instrument is a current measuring meter with Modbus TCP Server interface, the measurement of the current value is stored in the address 40001. In the SST-BM-CFG, configure the No.03 function code, start address is 0 (corresponds to the Modbus holding register 40001), and then the SST-BM-CFG will be automatically mapped to the BACnet object AnalogInput (analog input). On the BACnet master PC, the current value can be observed through corresponding AnalogInput. www.SSTAutomation.com 30

Documents / Resources

SST Automation GT200-BM-MT Modbus TCP BACnet IP Gateway [pdf] User Manual GT200-BM-MT Modbus TCP BACnet IP Gateway, GT200-BM-MT, Modbus TCP BACnet IP Gateway, TCP BACnet IP Gateway, IP Gateway

References

• User Manual