PPI, MPI, and Profibus Networks in Siemens S7-200

PPI, MPI, and Profibus Networks in Siemens S7-200

Click on the blue textFollow me! ☀The leading brand in automation remote education, the official WeChat platform of Jicheng Training Network! Follow Jicheng, and technical improvement is no problem! Source: Jicheng Training Network (Teacher Liang Zhibin) 1.3.1 PPI Network The PPI protocol is a communication protocol specifically developed for the S7-200. The communication ports (Port0/Port1) … Read more

Profibus Master/Slave Solution Based on DF PROFI II Communication Card

Profibus Master/Slave Solution Based on DF PROFI II Communication Card

DF PROFI II is a high-performance PROFIBUS DP/DPV1 interface card that can be used as a DP master or DP slave, capable of being rapidly and flexibly applied in various automation industries. It supports a wide range of applications across different fields. In addition to standard PROFIBUS DP/DPV1 services, it also provides a watchdog function, … Read more

Development of PROFIBUS DP Data Bus Cable

Development of PROFIBUS DP Data Bus Cable

Development of PROFIBUS DP data bus cable WANG Hai-ling1, ZHANG Hong-yan2 (1. Anhui Xinke Cable Group Co., Ltd., Wuwei 238300, China; 2. Anhui Zongheng HI-TECH Cables Co., Ltd., Hefei 230051, China) [Abstract]: With the continuous deepening and development of the domestic industrialization process, the demand for industrial automation networks is increasingly extensive. Especially since the … Read more

Two Methods to Connect Siemens DP Slave to Redundant CPU

Two Methods to Connect Siemens DP Slave to Redundant CPU

【Introduction】 A PROFIBUS DP slave with only one PROFIBUS DP interface can be connected to a redundant CPU via PROFINET or PROFIBUS. Below, we introduce two methods to achieve this using IE/PB LINK HA and Y LINK. (1) Recommended PROFINET Connection IE/PB LINK HA is a gateway between Industrial Ethernet and PROFIBUS DP. It enables … Read more

Siemens Communication Overview

Siemens Communication Overview

Siemens Communication 1. Generally speaking, the communication network of an enterprise can be divided into three levels: enterprise level, workshop level, and site level. Enterprise Level: Top-level management of the enterprise; IT technology applications are very extensive, such as the INTERNET. Workshop Level: Solving communication between different process segments that need to coordinate work within … Read more

Can Two Different DP Networks Be Integrated? Have You Used DPCoupler?

Can Two Different DP Networks Be Integrated? Have You Used DPCoupler?

Search on WeChat Technical Training Today, let’s talk about the DP/DP Coupler~ If you are familiar with Siemens PLC, especially the 300/400 PLC, you should know or have used this component! Even in this era where industrial Ethernet is so widespread, this component is still used in many factories! So what is it used for? … Read more

S7-400 One-Way Communication Based on PROFIBUS (STEP7 v1x)

S7-400 One-Way Communication Based on PROFIBUS (STEP7 v1x)

The S7 protocol is the standard protocol used for communication between SIEMENS S7 series products. Its advantage is that both communication parties can establish a communication connection through the S7 protocol, regardless of whether they are on the same MPI bus, the same PROFIBUS bus, or the same Industrial Ethernet. The data exchange is independent … Read more

Issues with RS485 Repeaters and Profibus Signal Voltage

Issues with RS485 Repeaters and Profibus Signal Voltage

Search on WeChat Technical Training There have been persistent issues with Profibus communication at a certain brewery. Previously, SIAS and on-site engineers had re-planned the entire Profibus network topology, but there were still instances of DP slave devices dropping out, occurring multiple times in a short period, severely affecting the factory’s normal production. Therefore, the … Read more

Detailed Analysis of the Role of Termination Resistors in PROFIBUS-DP Connectors

Detailed Analysis of the Role of Termination Resistors in PROFIBUS-DP Connectors

PROFIBUS Physical Wiring and DP Connector Diagram From the diagram, it can be seen that when the switch is turned to “ON”, terminals A1 and B1 are connected to the termination resistor, so only A1 and B1 can be connected at the end of the DP network; otherwise, the termination resistor cannot be connected. When … Read more