Modbus / BACnet IP Gateway
GT200-BM-MT V2.1
909-490-7557
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The GT200-BM-MT gateway allows multiple Modbus TCP server/slave devices as well as Modbus serial devices to be efficiently integrated into a BACnet/IP network, enabling seamless interoperability between Modbus‑based equipment (both TCP and serial) and BACnet building automation systems including Johnson Controls, Honeywell, and Carrier.
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Technical Specification
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BACnet/IP Features
- Supports protocol conversion between Modbus TCP / Modbus Serial and BACnet/IP.
- Modbus TCP and BACnet/IP share the same Ethernet interface for streamlined integration.
- Dual Ethernet ports with self-adaptive capabilities, IP address conflict detection, and automatic routing for robust networking.
- Supports BACnet/IP services: Who-Is, I-Am, Who-Has, I-Have, Read Property, Write Property, Read Property Multiple.
- Supports up to:
- 500 Binary Inputs (BI)
- 300 Binary Outputs (BO)
- 300 Binary Values (BV)
- 500 Analog Inputs (AI)
- 300 Analog Outputs (AO)
- 300 Analog Values (AV)
- 500 Multi-State Inputs (MSI)
- 100 Multi-State Outputs (MSO)
- 100 Multi-State Values (MSV)
Modbus TCP Features
- Acts as a Modbus TCP client to communicate with up to 36 different IP addresses or Modbus TCP servers with different unit IDs.
- Supports Modbus function codes: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x0F, 0x10,0x17.
Modbus Serial Features
- Supports Modbus RTU/ASCII master mode via RS-485.
- Allows integration of up to 32 Modbus serial slave devices per serial port.
- Configurable baud rate (up to 115200 bps), data bits, parity, and stop bits.
- Supports same Modbus function codes as Modbus TCP (0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x0F, 0x10,0x17).
General
- Power supply: 24VDC (range: 11–30VDC), 90mA @ 24VDC.
- Operating temperature: -20°C to 60°C (-4°F to 140°F).
- Humidity: 5% to 95% RH (non-condensing).
Physical Features
- Dimension (W*H*D): 1.3 in * 4.6 in * 4.1 in (34 mm * 116 mm * 105 mm).
- Mounting: 35mm DIN rail.
- Protection rating: IP20.









