-Begin- Introduction Hello everyone Recently, the software resource library has been reorganized, adding some commonly used software, totaling about 180 software. The software database is divided into five categories, corresponding to five areas: Development Software, Office Software, Industrial Control Software, Machine Vision, and Technical Articles. Each area is assigned a code, which are Zone 0, … Read more
To communicate with other devices in a PLC, the MODBUS function library is definitely the most commonly used. Let me share my experiences and some tips from my work~ As the “universal solution” in the field of industrial automation, the MODBUS library allows our PLC to communicate with other devices that support the MODBUS protocol. … Read more
Industrial Automation Group Knowledge sharing and mutual assistance Join Now When we talk about the communication protocols between automation devices (such as PLCs, temperature controllers, etc.) and computers, ModBus is a widely used communication protocol. ModBus supports various communication methods, including ModBus RTU, ModBus ASCII, and ModBus TCP. Each communication method has its unique characteristics … Read more
What is Modbus? As the name suggests, it is a bus protocol. For example, serial port protocols, IIC protocols, and SPI are all communication protocols. If you are familiar with such protocols, it is likely that you are in the industrial sector or your product is used in industrial applications. What is Modbus Used For? … Read more
Modbus is widely used due to its advantages The Modbus protocol is standard, open, publicly available, and has no copyright requirements The Modbus protocol supports various electrical interfaces, including RS232, RS485, TCP/IP, and can transmit over various media such as twisted pair, fiber optics, infrared, and wireless The Modbus protocol message frame format is simple, … Read more
Introduction Modbus was developed byMODICONin 1979 and is a standard forindustrial fieldbus protocol. In 1996, Schneider Electric launched the Modbus protocol based on Ethernet TCP/IP: Modbus TCP. The Modbus protocol is an application layer messaging protocol that includes three types of messages: ASCII, RTU, and TCP. The standard physical layer interfaces for Modbus protocol include … Read more
Modbus Communication Protocol Introduction: The ModBus network is an industrial communication system formed by connecting programmable controllers with intelligent terminals and computers via public or local dedicated lines. Its system structure includes both hardware and software. It can be applied to various data acquisition and process monitoring. The ModBus network has only one master, and … Read more
Follow the “Automation Control System Communication” public account to understand the principles of automation control systems and master the knowledge of automation control systems. Click the blue “Automation Control System Communication” above to follow us. Understanding what the Modbus communication protocol is allows you to perform communication tests on-site using various third-party software. The Modbus … Read more
In industrial control, power communication, and smart instrumentation, data exchange often relies on serial communication. Initially, the RS232 interface was the mainstream choice; however, due to the complexity of industrial sites, various electrical devices generate electromagnetic interference that can lead to signal transmission errors. In 1979, Schneider Electric designed and launched a bus protocol specifically … Read more
Follow+Star Public Number, don’t miss out on wonderful content Source | Network 01 Terminology Interpretation Checksum: A checksum is usually the last digit of a group of numbers, derived from the preceding numbers through some operation, used to verify the correctness of the data set. When code is inputted as data into a computer or … Read more