1. Background

The serial port server provides the serial port to network function, which can convert the RS-232/485/422 serial port into a TCP/IP network interface, and realize the two-way transparent transmission of data between the RS-232/485/422 serial port and the TCP/IP network interface. The serial device can immediately have the TCP/IP network interface function, connect to the network for data communication, and greatly expand the communication distance of the serial device.

2. What is a serial port server?

A serial server is a networking device used to connect two or more serial devices through a network. It enables you to connect serial devices over Ethernet no matter where they are located in the world, without the limitation of physical cable length. By using the method of serial connection, the device can work as close to the device without any intermediate equipment.

3. What is the role of the serial server?

The serial server can connect traditional RS-232/422/485 devices to the Internet immediately. The serial port device network server is like a microcomputer with CPU, real-time operating system and TCP/IP protocol, which transmits data in the serial port and network device. Using a serial port server, you can use your computer to access, manage and configure remote devices from anywhere in the world through the network.

Allow electrical equipment with only serial interfaces, such as RTU, CNC machine tools, testers, etc. to easily connect to Ethernet to realize network management and remote control.

4. Is the serial server a switch?

no.

The switch is also called an industrial Ethernet switch. It functions as a device for expanding network signals and is an Ethernet switch device used in industrial control. It's open, widely available, and cheap thanks to web standards. It uses transparent and unified TCP/IP protocol. Networking has become the main communication standard in the field of industrial control.

The main purpose of a serial server is to allow serial devices such as printers, scanners, or climate control systems to be used on a network without relying on a computer's serial port for the connection. In this way, any serial device can be connected to the network and accessed from anywhere, including the Internet.

5. What are the connection methods of the serial port server?

Direct connection and Ethernet connection.

The so-called direct connection method is to directly connect the network port on the serial port server with the network cable port on the computer. This networking method has simple wiring and can realize long-distance transmission. The reason why long-distance transmission can be realized is that the distance from the computer to the serial port server increases.

Connect the CNC equipment to the Ethernet through the serial server. The wiring method is very simple. You only need to connect the serial server to the hub or switch. By setting the IP address of the serial server, the serial server can become a node on the Ethernet. , from connecting the CNC system connected to the serial port server to the Ethernet, through this networking method, different devices can be connected to the RS232/485/422 serial port to the Ethernet to realize heterogeneous networking.

6. How many working modes does the serial port server have?

There are four kinds.

1. TCP Server mode.

2. TCP Client mode.

3. UDP mode.

4. HTTPD Client mode

7. What are the application fields of the serial port server?

The application field of the serial port server is very wide, and it can be used for data acquisition and remote control network project transformation.

Give 3 common cases

Unattended weighing: the serial port server can be used to connect weighing instruments, receipt printers, gates and other weighing supporting equipment to the local area network, and a local area network computer can be used to complete centralized control and data statistics management. Remotely control the gate switch.

Intelligent agriculture: Connect the temperature and humidity instrument through the serial port server to realize on-site environmental monitoring and management, and realize artificial intelligence management.

Intelligent transportation: connect the serial port server to the signal lamp, and the control center realizes on-site traffic data collection and processing through Ethernet. At the same time, it can also provide accurate quantitative basis for traffic command and dispatch and urban traffic planning.

Real-time optimization of traffic phenomena such as traffic congestion, transit time, traffic accidents, and traffic capacity from a regional or global perspective.

8. How is the serial port server applied?

The use of the serial server is usually to connect the serial device with RS232/485 at the serial port, and connect the other end to the network port. The RS232 and RS485 serial ports work independently at the same time without affecting each other.

Modbus TCP/RTU bidirectional conversion and configuration software interface