tGW-718-T: Tiny Modbus/TCP to RTU/ASCII Gateway with 1-port RS-232/422/485
tGW-718i-T: Tiny Modbus/TCP to RTU/ASCII Gateway and 1-port Isolated RS-232/422/485 (10-Pin Terminal Block)

   

Introduction:

Modbus has become a de facto standard industrial communication protocol, and is now the most commonly available means of connecting industrial electronic devices. Modbus allows for communication between many devices connected to the same RS-232/422/485 network, for example, a system that measures temperature and humidity and communicates the results to a computer. Modbus is often used to connect a supervisory computer with a remote terminal unit (RTU) in supervisory control and data acquisition (SCADA) systems.Modbus has become a de facto standard industrial communication protocol, and is now the most commonly available means of connecting industrial electronic devices. Modbus allows for communication between many devices connected to the same RS-232/422/485 network, for example, a system that measures temperature and humidity and communicates the results to a computer. Modbus is often used to connect a supervisory computer with a remote terminal unit (RTU) in supervisory control and data acquisition (SCADA) systems.

The tGW-718(i)-T module is a Modbus TCP to RTU/ASCII gateway that enables a Modbus/TCP 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 mainframe computers, servers or other serial devices that use Modbus RTU/ASCII protocols yet themselves do not have Ethernet capability.



The tGW-718i-T also adds 3000 VDC isolation and +/-4 kV ESD protection component that diverts the potentially damaging charge away from sensitive circuit to protects the module and equipment from the sudden or momentary electric current.

 

Features:

• Supports Modbus TCP/UDP master and slave
• Supports Modbus RTU/ASCII master and slave
• 10/100 Base-TX Ethernet
• 3000 VDC Isolation and +/-4 kV ESD protection per serial port (RS-232/422/485)
• RS-485 direction automatic control
• Max. 32 connections (masters) per serial port
• Read-cache ensures faster Modbus TCP/UDP response
• Supports UDP responder for device discovery (UDP Search)
• Static IP or DHCP network configuration
• DC terminal block

For more information, please visit the tGW-700 series web site.