Bộ chuyển đổi Modbus Gateway 2 cổng RS-232 + 1 cổng RS-485 sang Ethernet ICP DAS tGW-734i CR
Feature
- 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)
- 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
• Building Automation
• Factory Automation
• Machine Automation
• Remote Maintenance
• Remote Diagnosis
• Testing Equipment
Specifications
| CPU Module |
| CPU |
32-bit ARM |
| COM Ports |
| Ports |
1 x RS-485 (3000VDC Signal Isolation)
2 x 3-wire RS-232 (3000VDC Signal Isolation) |
| 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 |
Download
Datasheet
Documents
Ordering Information
| tGW-734i CR |
Tiny Modbus/TCP to RTU/ASCII Gateway with PoE, 2-port Isolated RS-232 and 1-port Isolated RS-485 (RoHS)
Includes DC-jack to 2-wire power cable, 0.3 M |
