Year: 2025

How to Implement PROFIBUS DP Communication Between S7-300 and S7-200

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How to Implement PROFIBUS DP Communication Between S7-300 and S7-200

Supported baud rate range: 9600—-12M Order number: 6ES7-277-0AA22-0XA0 1. First, install the GSD file for EM277 (GSD file download link: http://www.con-star.com/download/download11.html) 2. In the path PROFIBUS DP—Additional Field Devices—PLC—SIMATIC—EM277, drag it into the DP line configuration 3. Click on “EM277 profibus dp” to see various types of communication data classifications, such as “2 BYTE OUT/ … Read more

Embedded – Profibus Protocol Porting

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Embedded - Profibus Protocol Porting

The following are detailed steps and technical points for porting the Profibus protocol based on UART, suitable for industrial automation device development scenarios: 1. Overview of Profibus Protocol 1.Protocol Types: ◦Profibus DP: Used for high-speed communication at the device level (12Mbps), master-slave architecture. ◦Profibus PA: Used for process automation, supports intrinsic safety and bus power … Read more

Design of PROFIBUS_DP Master-Slave Communication

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Design of PROFIBUS_DP Master-Slave Communication

Industrial Equipment & One-Stop Service Haikong Industrial PROFIBUS_DP (Process Field Bus – Decentralized Periphery) is a communication protocol used in the field of industrial automation, primarily for efficient and reliable data exchange between the master (Master) and slave (Slave). 1. Network Planning and Wiring: Before designing and implementing the PROFIBUS_DP communication network, network planning and … Read more

Achieving Fast and Efficient Data Acquisition with Profibus DP: Here’s How

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Achieving Fast and Efficient Data Acquisition with Profibus DP: Here's How

Practical Application of Profibus DP Data Acquisition You may have heard of Profibus DP (Decentralized Peripherals), a protocol frequently used for data transmission in Siemens PLC projects, especially in industrial automation, where it is widely applied. Today, let’s discuss how to use Profibus DP for data acquisition, allowing it to easily interface with PLCs to … Read more

Fundamentals of Profibus Bus Technology

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Fundamentals of Profibus Bus Technology

Profibus Bus Technology 1. What is Profibus Fieldbus? The fieldbus is a serial, digital, multipoint communication bus installed between field devices/instruments in the production process area and the automatic control devices/systems in the control room. Of course, the production process includes both continuous and batch production. Profibus fieldbus is one of them. In simple terms, … Read more

Basic Introduction to PROFIBUS Communication

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Basic Introduction to PROFIBUS Communication

Click the blue text to follow us PROFIBUS (Process Field Bus) is a widely used communication protocol in the field of industrial automation. It was developed by Siemens in the early 1980s and standardized in the 1990s. PROFIBUS enhances the level of automation in industrial production by enabling efficient and reliable communication between devices. 1.Development … Read more

Practical Sharing: Modbus Communication Programming Examples – An Exciting Series!

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Practical Sharing: Modbus Communication Programming Examples - An Exciting Series!

Modbus Communication Programming Example (1) Recently, I have been writing about Modbus and fieldbus introductions separately, which are more conceptual and do not involve specific examples. Many readers may still find it insufficiently detailed. Since I am no longer engaged in specific programming debugging, providing direct examples is quite challenging. I referenced some materials from … Read more

Communication Between S7-200 SMART and Weighing Instruments via MODBUS Library

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Communication Between S7-200 SMART and Weighing Instruments via MODBUS Library

First, we will introduce our hardware preparations. 1. A weighing instrument that supports the Modbus protocol Weighing instrument that supports the Modbus protocol 2. Set the communication parameters of the instrument You can adjust according to your requirements, as long as it matches the PLC side. Baud rate: 9600 Data format: 8n1: 8 data bits … Read more

Collection of 20 Types of Frequency Converter Modbus Communication Register Allocation Tables

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Collection of 20 Types of Frequency Converter Modbus Communication Register Allocation Tables

I have previously worked with microcontrollers and various models of frequency converters including Mitsubishi D700, Siemens G120, Omron 3G3JZ, Panasonic VF200, Delta VFD-M, Xinjie VB3, Yonghong FID-B10, Chande IS7, Inovance MD500, Invt Goodrive10, Schneider ATV12, Haiwei E, Holley HGD303, Taian F510, Hexin F2A, Rockwell PowerFlex-4, Fuji FRENIC-VP, Boke CV20, Yaskawa A1000, and Weichuang Artrich-AR60T. Most … Read more