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
[Introduction] PROFIBUS fieldbus mostly uses RS485 for serial communication, but in some cases, it can also convert the cable into optical fiber for communication, and OLM is such a device. Technical communication, click here to join the group Sales procurement, click here to join the group Project docking, click here to join the group Talent … Read more
Basic Principles of Data Transmission Technology 1. Characteristic Impedance and Delay Characteristics Ideally, due to the in-phase relationship between the voltage and current of the resistive components, the input signal experiences no phase shift when passing through the resistive network, only inherent attenuation. In practical circuits, since cables do not possess purely resistive characteristics but … 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
In the last issue, we mainly introduced the definition of Profibus DP, the core content of its three different versions, and the differences in their applications. This time, we will share the differences between Profibus DP and Profibus PA. Three Types There are three compatible versions of Profibus: Profibus-DP Profibus-PA Profibus-FMS Of course, in an … Read more
A65 PROFIBUS Related Documents Industrial Systems PROFIBUS is a fieldbus standard used in automation technology that was promoted in 1987 by Siemens and fourteen other companies along with five research institutions. PROFIBUS stands for PROcess FIeld BUS. The PROFIBUS standardization organization is part of Profibus&Profinet International (PI), located in Karlsruhe, Germany. The documents provided here … Read more
PROFIBUS Connectors and Termination Resistors The connectors are used to connect the PROFIBUS cable to the PROFIBUS stations (as shown in Figure 1). Figure 1 Use of PROFIBUS Connectors On the PROFIBUS connector, there is an incoming port (In) and an outgoing port (Out), which connect to the previous and next stations respectively. 1. Each … Read more
(1) Overview of PROFIBUS PA Bus PROFIBUS is the abbreviation for “Process FieldBus”, which officially became the international standard for fieldbus in 1989. It currently dominates various automation fields and consists of three parts: PROFIBUS DP PROFIBUS PA PROFIBUS FMS PROFIBUS PA is suitable for process automation design, applying intrinsically safe transmission technology (Manchester coding, … Read more