Industrial Gateway

tGW-724

  • Supports Modbus TCP/UDP master and slave
  • Supports Modbus RTU/ASCII master and slave
  • Max. TCP connections (masters) per serial port: 32
  • Read-cache ensures faster Modbus TCP/UDP response
  • Supports UDP responder for device discovery (UDP Search)
  • Static IP or DHCP network configuration
  • Tiny Web server for configuration (HTTP)
  • Allows automatic RS-485 direction control
  • Terminal block connector for easy wiring
  • Cost-effective Modbus gateway
 

Introduction

Modbus has become a 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-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-700 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 do not themselves have Ethernet capability.
 
The read-cache function is used to store previous requests and responses in the memory buffer of the tGW-700 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 RS-485 bus communication, ensures faster TCP responses, and improves the stability of the entire system.
 
The tGW-700(Non-T) module offers true IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) functionality using a standard category 5 Ethernet cable to receive power from a PoE switch such as the NS-205PSE. If there is no PoE switch on site, the module will also accept power input from a DC adapter. The tGW-700 module is designed for ultra-low power consumption, reducing 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.

Application

Factory, Building and Home Automation       Remote Diagnosis and Management Solar Monitoring More Info.
tgw_application

Specifications

 CPU Module
  CPU 32-bit ARM

 

 COM Ports
 Ports 1 x RS-485
1 x 5-wire RS-232
 Baud Rate 115200 bps Max.
 Bias Resistor Yes, 1 KΩ
 Parity None, Odd, Even, Mark, Space
 Data Bit 5, 6, 7, 8
 Stop Bit 1, 2
 Node Address 254 (max.)

 

 Ethernet
 Ports 10/100 Base-TX, 8-pin RJ-45 x 1, (Auto-negotiating, Auto-MDI/MDIX, LED indicator)
PoE (IEEE 802.3af, Class 1)

 

 Power
 Consumption 0.07 A @ 24 VDC
 Powered from PoE IEEE 802.3af, Class 1
 Powered from Terminal Block +12 ~ 48 VDC

 

 Mechanical
 Casing Plastic
 Dimensions (mm) 52 mm x 95 mm x 27 mm (W x H x D)
 Installation DIN-Rail Mounting

 

 Environment
 Operating Temperature -25 ~ +75 °C
 Storage Temperature -30 ~ +80 °C
 Humidity 10 ~ 90% RH, Non-condensing

 

Accessories

CA-002 ES25A48-DA1-DIN GST25A24-DA1-DIN NS-205PSE
       CA-002 ES25A48-DA1-DIN GST25A24-DA1-DIN     NS-205PSE

Description

 PRODUCT SERIES     DESCRIPTION    QTY   INQUIRY
 NS-205PSE     CR  Unmanaged 5-port 10/100 Mbps PoE (PSE) Ethernet Switch (RoHS) 1