Modbus Gateway Rtu to Ethernet ( TGW 700)


• Supports Modbus TCP/UDP master and slave
• Supports Modbus RTU/ASCII master and slave
• Max. TCP connections (masters) per serial port: 32 (tGW-71x), 16 (tGW-72x) or 10 (tGW-73x)
• Read-cache ensures faster Modbus TCP/UDP response
• Supports UDP responder for device discovery (UDP Search)
• Static IP or DHCP network configuration
• Easy firmware update via the Ethernet (BOOTP, TFTP)
• Tiny Web server for configuration (HTTP)
• Contains a 32-bit MCU that efficiently handles network traffic
• 10/100 Base-TX Ethernet, RJ-45 x 1 (Auto-negotiating, auto MDI/MDIX, LED Indicators)
• Includes redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC jack
• Allows automatic RS-485 direction control
• 3000 VDC Isolation and +/-4 kV ESD protection for i versions
• Male DB-9 or terminal block connector for easy wiring
• Tiny form-factor and low power consumption
• RoHS compliant & no Halogen
• Cost-effective Modbus gateway

The tGW-700/GW-2200i module is a Modbus gateway that enables a Modbus TCP/UDP host to communicate with serial Modbus RTU/ASCII devices through an Ethernet network, and eliminates the cable length limitation of legacy serial communication devices. The module can be used to create a pair-connection application (as well as serial-bridge or serial-tunnel application), and can then route data over TCP/IP between two serial Modbus RTU/ASCII devices, which is useful when connecting computers, servers or other serial devices that use Modbus RTU/ASCII protocols and do not themselves have Ethernet capability. The maximum number of TCP connections for each serial port is up to 32(RevB), this allows multiple masters accessing slave devices on the same serial port. The read-cache function is used to store previous requests and responses in the memory buffer of the tGW-700/GW-2200i module. When other HMI/SCADA master controllers send the same requests to the same RTU slave device, the cached response is returned immediately.This feature dramatically reduces the loading on the serial port communication, ensures faster TCP responses, and improves the stability of the entire system. The GW-2200i series has a built-in two-port Ethernet switch to implement daisy-chain topology. The cabling is much easier and total costs of cable and switch are signifi cantly reduced. LAN Bypass feature guarantees the Ethernet communication if GW-2200i loses its power.






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