RS-422 RS-422 (EIARS-422-AStandard) is the serial port connection standard for Apple’s Mac in osh computers. RS-422 is developed from RS-232 and is proposed to make up for the shortcomings of RS-232. RS 422 is a one-way, balanced transmission method for single-machine transmission and multi-machine reception.

The following is the application of Zongheng Intelligent Control’s data transmission products in successful cases of the Internet of Things. LoRa remote meter reading system LoRa remote meter reading system Application of ZHC492C in greenhouse monitoring The remote meter reading system independently developed by Zongheng

Siemens Profibus DP communication is often used for communication between PLC and other PLCs, remote substations, frequency converters, bus instruments and third-party DP equipment. The program is simple and the wiring is convenient. However, once the red light on the DP network is always on

What is breaker failure protection? When the main protection action of the faulty electrical equipment issues a trip command but the circuit breaker refuses to operate, the protection action information of the faulty equipment and the current or other information of the circuit breaker that

As a bridge connecting the industrial Internet of Things central control system and remote devices, the serial port server plays a self-evident role in the entire communication link. Today, the author will use industrial control solutions as a foothold to analyze the mystery of this

Composition of serial port server The serial port server is mainly composed of three major modules: the main processor module, the Ethernet interface and control module, and the serial port data processing module. (1) Main processor module The main functions completed by this module are:

The main processor first initializes the network and serial port devices. When data is transmitted from the Ethernet, the processor analyzes the data packets. If it is an ARP packet, the program is transferred to the ARP handler; if it is an IP packet and

With the development of GPRS technology in the field of wireless communications, GPRS modem has become more and more widely used as a PC terminal for GPRS on the Internet. Correspondingly, the use of GPRS modem in single-chip computer systems to achieve Internet access has

The data transmission module developed by Zongheng Intelligent Control has a variety of network type products, including 4G, GPRS, LoRa, Ethernet, etc. Data collection and transmission system based on wireless transmission module. The data collection terminal collects the temperature and humidity in the environment, connects

Serial server concept In the Internet of Things, everyone must be familiar with the word serial port server. However, the concept of this product is explained clearly on the Internet. There are not many. I happened to see an article on the Internet that explains

ZHL4921W 4g wireless industrial router is developed by Chengdu Zongheng Intelligent Control Technology Co., Ltd. based on FDD-LTE4G network requirements, using the latest ARM hardware system platform, and using the latest technology using the Linux software system. It is a brand new one with better

Serial networking server products provide solutions for accessing industrial equipment directly through the network. Traditional serial devices can thus be converted into Ethernet devices that can be monitored and controlled from a LAN or even the Internet. XUNWEI’s serial port server provides different configurations and