Communication Between S7-300/400 and SINAMICS S120 via DP Bus 1. Overview of DP Bus Communication Functionality S7-300/400 can communicate with SINAMICS S120 via DP bus for both periodic and non-periodic data communication. Using standard S7 function blocks SFC14/SFC15, the S7-300/400 PLC can send Control Word 1 (CTW1) and Main Set Value (NSETP_B) to the drive … Read more
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
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
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 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
Click on the top ” Technical Training ” and select “Pin to Top“ Over 160,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos. First, let’s introduce the CP342-5. The CP342-5 is a PROFIBUS communication module from the S7-300 series, equipped with a PROFIBUS interface. It can function as either … Read more
Click the arrow and the “blue text” to follow us! In industrial control, communication plays a very important role. Any control is based on correct, reliable, and efficient communication. Let’s learn about Siemens’ Profibus DP communication. The Profibus DP communication of Siemens is mainly divided into the following three forms. 1. Communication between the master … Read more
Due to time constraints, I will keep this article brief. This article is my original work, based on my own experiences, and not written by anyone else. When copying or quoting this article, please indicate the source; otherwise, I reserve the right to pursue legal action, so please take note. This article is quite technical, … Read more