New Product Release: tGW-732i
tGW Product with Isolation Function
Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 3 Isolated RS-232 Ports
Jun. 11, 2018
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- 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 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.
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The tGW-732i 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 and themselves do not have Ethernet capability.
The tGW-732i 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 and momentary electric current.
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- “Built-in Web server”
The tGW-700 module features a powerful 32-bit MCU to enable efficient handling of network traffic; and it also has a built-in web server that provides an intuitive web management interface for users to modify the configuration of the module, including the DHCP/Static IP, the gateway/mask settings and the serial port settings.
“Built-in Dual Watchdog”
The module contains a dual watchdog, including a CPU watchdog (for hardware functions) and a host watchdog (for software functions). The CPU watchdog automatically resets the CPU if the built-in firmware is operating abnormally, while the host watchdog automatically resets the CPU if there is no communication between the module and the host (PC or PLC) for a predefined period of time (system timeout). The dual watchdog is an important feature that ensures the module operates continuously, even in harsh environments.
“Low power consumption”
The tGW-700 module offers true IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) functionality by using a standard category 5 Ethernet cable to receive power from a PoE switch such as NS-205PSE. If there is no PoE switch on site, the module can also accept power input from a DC adapter. The tGW-700 module is designed for ultra-low power consumption; therefore it reduces the hidden costs from increasing fuel and electricity prices, especially when you have a large number of modules installed. Reducing the amount of electricity consumed by choosing energy-efficient equipment can have a positive impact on maintaining a green environment.
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Features: