The Modbus communication protocol was invented by Modicon in 1979 and is the world’s earliest bus protocol used in industrial fields. Due to its free public release, manufacturers using the protocol do not need to pay any fees, so the…
Applications de l'internet des objets
Internet of things The concept of the Internet of Things was first proposed by the Auto-ID Center of the Massachusetts Institute of Technology in 1999. What is the Internet of Things? All things are connected, allowing objects that cannot communicate…
Qu'est-ce qu'une passerelle modbus ?
what is modbus gateway Modbus gateway is a device that can convert Modubs TCP protocol into Modbus RTU protocol. You can understand it this way, it is an industrial router that supports the modbus protocol. I believe you will understand…
Electric meter reading, automatic remote meter reading collector
Traditional meter reading requires the meter reader to search up and down pages of the meter. Some meters also require professional key operations to query meter data. On average, each meter requires 1 to 2 minutes of meter reading time.…
Electric meter collector, water meter collector
ZHC4014 is a data transmission device specially used for collecting electricity meters and water meters, and has the function of collecting data and transmitting. One device can collect 30~40 electricity meters/water meters. This product adopts guide rail installation, which can…
Wireless networking, Internet of things wireless networking
In the Internet of Things, networking solutions are determined according to different application scenarios. Here are several typical networking solutions. 1. One-way networking One-way networking is to send the collected data to the server in one direction through the DTU…
Characteristics of the Internet of Things, what are the three major characteristics of the Internet of Things
The three major characteristics of the Internet of Things are sensing objects, information transmission, and intelligent processing. The general meaning is that the Internet of Things is the Internet where things are connected. This has two meanings: first, the core…
Application of zigbee, zigbee networking solution
Application of zigbee, zigbee networking solution As a low-speed short-distance wireless communication technology, ZigBee has its own characteristics. Zigbee has the characteristics of low power consumption, short distance, low power consumption, low speed, and flexible networking method, so it is…
plc communication methods, what are the PLC communication methods?
There are two main communication methods of PLC, namely parallel communication method and serial communication method. Let’s explain the two communication methods respectively. If you need to know about serial port and parallel port, please read this article “The Difference…
mqtt gateway
ZHL4921 is an industrial MQTT gateway designed to meet the needs of industrial customers and adopted industrial-grade standards. This product supports MQTT communication based on the Modbus protocol, which can help users quickly access IoT cloud platforms (such as Baidu…
Is wireless LAN wifi?
Is wireless LAN wifi? Answer: Wireless LAN is not wifi Before talking about this question, we need to know that wireless LAN is WLAN, the full name is Wireless Local Area Network. It refers to the application of wireless communication…
What does gateway mean?
What does gateway mean? Easy-to-understand explanation: The gateway is our common “router”.In the Internet network we are familiar with, the role of a gateway is an intermediate device that links the internal network with other networks on the Internet. A…