1. Basic Properties of PROFIBUS PROFIBUS specifies the technical and functional characteristics of the serial fieldbus system. Through this system, distributed, digital field programmable controllers can be networked from the lower level (sensor, actuator level) to the middle level (unit level). PROFIBUS is divided into master and slave stations. > Master Station The master station … Read more
When mentioning Siemens’ communication, we must talk about PROFIBUS. Are you familiar with it? PROFIBUS is used in what ways? PROFIBUS supports master-slave mode as well as multi-master and multi-slave operating modes. In a multi-master environment, the control of the bus is determined by a token-passing method among the masters; once control is obtained, the … Read more
1 Introduction With the rapid growth of decentralized structures in manufacturing automation and process automation, the application of field buses is becoming increasingly widespread. It facilitates data transmission between digital and analog input/output modules, intelligent signal devices, and process control devices with PLCs/PCs, dispersing I/O channels to field devices located nearby as required. This reduces … Read more
Profibus-DP Communication Protocol 1. Overview PROFIBUS – DP stands for Decentralized Periphery, which is a type of computer electronic component. It features high speed and low cost, used for communication between device-level control systems and decentralized I/O. It, along with PROFIBUS-PA (Process Automation) and PROFIBUS-FMS (Fieldbus Message Specification), forms the PROFIBUS standard. 2. Basic Information … Read more
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S7-1200 acts as a DP Master during communication. When a DP slave is lost, the CPU does not stop, nor is it necessary to download an organization block to the CPU. For fault diagnosis of PROFIBUS DP, there are several methods: 1. Through the Indicator Lights on the Module The DIAG light on the front … Read more
PROFIBUS Transmission Technology (Physical Layer) and DP Communication In the ISO/OSI reference model, the first layer defines the “physical” methods of data transmission. This includes encoding types and the transmission standards used (e.g., RS 485). PROFIBUS provides various transmission technologies for the first layer: RS 485, RS 485-IS, MBP, and fiber optic transmission technology. Traditional … Read more
As one of the many members of the fieldbus family, ProfiBus is the most widely used fieldbus standard in the European industrial sector and is also one of the internationally accepted fieldbus standards. ProfiBus is a SIMITAC network belonging to the unit-level and field-level, suitable for transmitting small to medium amounts of data. Its openness … Read more
PROFIBUS Communication 1. Overview PROFIBUS is a fieldbus standard used in automation technology, promoted in 1987 by Siemens and fourteen other companies along with five research institutions. PROFIBUS stands for PROcess FIeld BUS. PROFIBUS and PROFINET, used in industrial Ethernet, are two different communication protocols. 2. Origins The history of PROFIBUS can be traced back … Read more
PROFIBUS (Process Field Bus) is the iconic protocol in the field of industrial fieldbus communication, fundamentally changing the way communication occurs in traditional industrial environments. This article will delve into this important industrial communication technology, helping readers gain a comprehensive understanding of the working principles and practical applications of PROFIBUS. The Past and Present of … Read more