Profibus DP

PROFIBUS-DP Fieldbus Incident Report: Struggling with Distributed Control? Here are 3 Solutions!

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PROFIBUS-DP Fieldbus Incident Report: Struggling with Distributed Control? Here are 3 Solutions!

1. Fatal Fault on Site A certain automotive welding workshop, Siemens S7-300 PLC (6ES7 315-2EH14-0AB0) suddenly reported error 0x1A3B, with 32 DP slaves going offline collectively. The monitoring screen displayed:<span>[2023-05-12 03:15] PROFIBUS-DP System Fault: Telegram timeout (Slave 17-32)</span> The signal amplitude was only 0.8Vpp (standard requirement ≥1.5Vpp), with a rise time jitter of 35ns (IEC61158 … Read more

Detailed Explanation of Profibus-DP Termination Resistors: Correct Selection and Installation to Ensure Communication Reliability

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Detailed Explanation of Profibus-DP Termination Resistors: Correct Selection and Installation to Ensure Communication Reliability

To build a stable and reliable Profibus-DP network, termination resistors can be considered a “small component with a big role”! Many engineers often overlook their importance, resulting in spending several days troubleshooting inexplicable communication failures, only to find out that it was the termination resistors causing the trouble. Today, we will analyze this seemingly simple … Read more

Choosing and Installing Termination Resistors for Long-Distance Profibus-DP Buses

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Choosing and Installing Termination Resistors for Long-Distance Profibus-DP Buses

In a Profibus-DP network, the bus length is one of the key factors affecting system stability. As the bus length increases, signal attenuation, delay, and interference also increase, which changes the requirements for termination resistors. Today, we will discuss in detail how to correctly choose and install termination resistors for different lengths of Profibus-DP buses. … Read more

M-Bus Master to PROFIBUS DP Slave – adfweb Converter – HD67053

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M-Bus Master to PROFIBUS DP Slave - adfweb Converter - HD67053

M-Bus Master to PROFIBUS DP Slave – adfweb Converter-HD67053 Author: Zou Wuyi Mobile185-020-77899 Email: [email protected] 1 Product Features: “HD67053-B2-xxx” is a M-Bus Master Converter for converting between the PROFIBUS DP bus and the M-Bus . It has the following features: Electrical isolation between PROFIBUS and M-Bus ; Can be mounted on a 35mm DIN rail; … Read more

Communication Between S7-300 and Yaskawa Inverter Using Profibus-DP

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Communication Between S7-300 and Yaskawa Inverter Using Profibus-DP

In a previous project, I was involved in the communication between the Yaskawa inverter and the S7-300. However, the available materials at night were all about control words and status words to control the inverter’s start and stop, as well as read some basic parameters. What I needed was to modify the inverter’s parameter values … Read more

PLC and Siemens Inverter DP Communication

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PLC and Siemens Inverter DP Communication

This article mainly illustrates the specific application of the PROFIBUS-DP fieldbus in production sites through examples, detailing the hardware configuration, software programming, and relevant parameter settings for communication between Siemens PLC and frequency conversion devices via PROFIBUS-DP. In industrial applications, especially in the steel metallurgy industry, it is most common to control frequency conversion devices … Read more

Optimization of Electric Control System for Vertical Mill Based on Profibus-DP Bus

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Optimization of Electric Control System for Vertical Mill Based on Profibus-DP Bus

Abstract In recent years, with the advancement of intelligent factory construction in the cement industry, many experts and scholars have dedicated themselves to the research of electric control systems for vertical mills to meet the needs of intelligent factory construction. Among them, the research on electric control systems for vertical mills based on bus control … Read more

Profibus-DP Communication Between S7-200 and S7-300

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Profibus-DP Communication Between S7-200 and S7-300

Profibus-DP Communication Between S7-200 and S7-300 PROFIBUS Fieldbus 1. Profibus-DP Communication Between S7-200 and S7-300 PLCs 1. Analysis: The S7-200 PLC does not support the DP communication protocol and does not have a Profibus-DP interface, so it cannot be directly connected as a slave. However, it can be connected to the Profibus-DP network by adding … Read more

Siemens S7-300 PLC and Modbus Communication DCS Control System Design

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Siemens S7-300 PLC and Modbus Communication DCS Control System Design

Click↑↑Technical Training, follow and pin to subscribe for free for a long time 180,000+ industrial control professionals are following the WeChat platform: technical sharing, learning exchange, industrial control videos This article introduces how to achieve communication between Modbus and Profibus-DP protocol devices, the application of the Modbus to Profibus-DP gateway PM-160, and the communication methods … Read more

S7-200 and S7-300 Profibus-DP Communication

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S7-200 and S7-300 Profibus-DP Communication

S7-200 and S7-300 Profibus-DP Communication 1. The S7-200CN CPU can connect to the DP network via EM277. 2. CPU315-2DP acts as the master station, while S7-200 CPU acts as the slave station. 3. Communication Issues 4. Hardware Configuration DP configuration for the master station, address is 2. 2. EM277 joins the DP network as a … Read more