FF Bus instrument type and network connection mode

Common types of FF Bus instruments FF Bus instrument is embedded microprocessor, real-time embedded operating system and FF field bus protocol stack, which has the functions of sensing measurement, digital communication, automatic compensation, automatic diagnosis, distributed control, information storage and so on. At present, the common types and uses of FF Bus instruments in the […]

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How can PROFINET bus topology automatically change device IP and name

Nowadays, Siemens PROFINET bus has been more and more popular. Since its first contact with PROFINET in 14 years, its application and understanding are more and more profound and wider. Today, I’d like to summarize a little debugging technique and share it with you. As we all know, if the bus is PROFINET, when configuring […]

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What is the difference between fieldbus and LAN

Fieldbus is a real-time control communication network that connects the field controller and field intelligent device at the bottom of automation. It follows all or part of the communication protocol of OSI reference model of ISO. Fieldbus control system (FCS) is a real-time network control system, which uses open Fieldbus to control communication network and […]

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Grounding specification of Fieldbus

Fieldbus refers to the digital, serial and multipoint communication data bus between the field equipment and the control equipment in the control room. It is a kind of industrial data bus and the bottom data communication network in the field of automation. The emergence of Fieldbus makes the automation control system enter the era of […]

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Can industrial Ethernet replace fieldbus

For the global communication industry, a very important trend is the integration of different communication networks. Similarly, there are many discussions about whether Ethernet will replace Fieldbus in the field of automation in recent two years. Ethernet has been widely used in the world for many years. It is a mature communication standard, mainly used […]

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The difference between direct serial line and cross serial line

Serial line is also divided into straight through and cross, straight through is generally used to extend PC and equipment, connect 2, 3, 5 to 2, 3, 5 respectively, because PC is generally male, and equipment is mostly female, so they are universal, can be used for extension and connection; cross is generally used for […]

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Organization, communication protocol and application of Fieldbus CC link

1、 Organization 1.1 CC link partner Association CC Link Partners Association (CLPA) was founded in 2000, when Mitsubishi Electric released the CC link fieldbus technical specification as an open industrial standard. Since then, CLPA has been committed to promoting and using this technology globally. In the past 14 years, CLPA has become one of the […]

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How to judge whether DP bus is normal or not

The connection of DP line will affect the connection between the field station and the central control, which is the basis for the normal operation of the system. To judge whether the DP line is normal, I usually use the following methods: 1. Turn the terminal resistance of DP head at both ends of DP […]

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Difference between Profibus DP bus and PROFIBUS PA bus

Profbus is an international open fieldbus standard. It can be used not only for high-speed and time critical data transmission, but also for a wide range of complex communication occasions. Profbus-dp is a communication protocol, which is optimized for high-speed transmission of user data. It is especially suitable for the communication between PLC and field […]

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Double filtering mode of CAN bus extended frame

When the frame data of CAN bus is transmitted on the bus, other can controllers determine whether the ID of the data frame on the bus is consistent with the node through acceptance filtering. If it is consistent with the node, the data on the bus will be stored in the corresponding register of the […]

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