Application of the hottest Fieldbus Technology in

The application of Fieldbus Technology in Zhujiang Beer

the application of Fieldbus Technology in the new beer production line is the first choice for large beer enterprises with strong management level and technical force. Guangzhou Zhujiang Beer Group Co., Ltd. is a large enterprise in Guangzhou, with an output of 1.5 million tons, ranking among the best in the domestic beer industry. It has always been the operation policy of Zhujiang Beer to boldly apply innovative technology and equipment to arm itself, so that the comprehensive index of the enterprise can take the lead in the industry and have strong competitiveness in the economic market. For this reason, Zhujiang Beer adopts Siemens' fieldbus technology and Schneider Fieldbus Technology in the early brewing process and later packaging process to ensure the normal operation of the frequency converter and the optimization of production

application of Fieldbus Technology in beer brewing

fieldbus technology has been applied in Zhujiang Beer Group for many years. In 1995, the H1 fieldbus system of Siemens S5 was adopted in the third stage fermentation process of Zhujiang Beer; In 2003, the Profibus fieldbus system of Siemens S7 was applied in the four stage fermentation and four stage saccharification process of Zhujiang Beer to centrally manage the field control at the workshop level. PROFIBUS Fieldbus upper computer adopts iFIX configuration software, communicates with PLC through industrial Ethernet, and can contact foreign engineer stations through dialing for remote adjustment and modification

Application of Fieldbus Technology in beer packaging

in fact, the application of Fieldbus System in beer packaging production line has been successfully tested for many times, but most enterprises are only limited to the application of single machine. In the second half of 2003, Luo Zhijun, deputy general manager of Zhujiang Beer Group, first proposed to establish a factory floor and workshop level network system on the whole production line when building three new packaging lines. After many field tests of Zhujiang Beer Group, fieldbus technology was successfully applied in beer packaging line for the first time

following the successful application of Fieldbus Technology in the whole packaging line of Zhujiang Brewery Group, two 36000 bottle/hour production lines of Dongguan Zhujiang brewery and one 36000 bottle/hour production line of Zhanjiang Zhujiang brewery also applied Fieldbus Technology in 2005 and 2006 respectively. So far, six production lines of Zhujiang Beer Group have successfully applied fieldbus technology, and the Zhongshan Zhujiang Beer production line under construction will also apply fieldbus technology as always

composition of Siemens PROFIBUS

Siemens Profibus fieldbus system is applied in Zhujiang Beer brewing production, and Schneider modbus+ fieldbus system is applied in packaging production. Among them, Siemens Profibus fieldbus system is composed of the following three mutually compatible parts:

1 PROFIBUS FMA: it is used to perform workshop level monitoring and communication tasks. It is a token ring structure and real-time multi main network

2 PROFIBUS DP: a widely used, high-speed and optimized communication scheme, which is mainly used to realize the communication between field level control system and distributed i/o and other field level devices

3 PROFIBUS PA: specially designed for process automation, suitable for applications in explosion-proof areas

application benefits of fieldbus technology

fieldbus technology is an internationally leading and open fieldbus standard. It brings many benefits to users, which is a great test for the production technology of lightweight packaging materials

1. save lines and hardware, simplify installation links

today's large beer packaging lines, from the perspective of management, protection, visit and so on, all focus on the electrical control cabinet in a central control room with dehumidification and constant temperature, so as to ensure the service life of electrical components. However, in this way, the power, signal and control lines will inevitably increase, the number of fault points will increase, and the workload of installation and maintenance will increase, affecting the normal operation of the equipment. The application of fieldbus technology solves this problem well. It makes a large number of signal and control lines arranged by one bus, which saves a lot of wires and installation labor. Take the packaging workshop of Dongguan Zhujiang Beer as an example: from the central control room to the console of field equipment, the average length of the bridge is 160 meters. A 36000 bottle/hour production line has more than 13 sets of equipment. Based on 80 signal, control and standby lines for each set of equipment, 1040 signal wires will appear. Converted into a standard 24 core control cable, there are 44 control cables with a total length of 7040 meters, and there are also many power cables. It is conceivable that this is a huge cost. With the application of fieldbus technology, the 7040 meter 24 core control cable only needs to be replaced by a 160 meter long twisted pair shielded cable, which also greatly reduces the size of the cable tray, which fully reflects the advantages of Fieldbus Technology in saving lines, time and labor. Fieldbus technology can also reduce hardware components, such as i/o modules, terminal blocks and barriers, and realize fast, easy and low-cost installation. At the same time, because only one set of tools is needed to configure all the equipment, the maintenance and repair become easier, and the start-up of the system is also easier and faster

2. Production and application are extremely convenient.

as we all know, there are many signal interlocking and data exchange of various equipment in the 36000 bottle/hour production line. On site, detection elements and control buttons are often temporarily increased or decreased according to the actual production situation (such as changing bottle type, technical transformation, adding system functions, etc.). In this way, when designing the production line, the designer needs to reserve 20% of the input and output spare ports for the PLC. Because the actual situation is difficult to predict and the standard configuration is different from the actual situation on site, the 20% reserved spare input and output ports may be idle or insufficient in production applications. Fieldbus technology will easily increase or decrease system functions on site, without being limited by the standby input and output ports of PLC

3. it has great manufacturing flexibility

fieldbus technology can diagnose data accurately, quickly and reliably, and transmit data reliably at the same time, bringing great manufacturing flexibility to the system

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4. Long transmission distance

Siemens PROFIBUS has five effective transmission technologies, which can be mixed to form a flexible network structure

rs 485 transmission technology: the most commonly used network medium shielded twisted pair cable is used. The distance depends on the baud rate, and the repeater can reach 10 kilometers

IEC intrinsically safe transmission technology: current mode, up to 10 kilometers with repeater

optical fiber transmission technology: the network distance can reach 100 kilometers, and it is completely free from the interference of electromagnetic waves

infrared and wireless transmission technology: limited by conditions, the transmission distance is not long, but it can solve the communication problem between rotating equipment and mobile equipment

guide rail transmission technology: used for suspension production line

application prospect of Fieldbus Technology in Zhujiang Beer

the successful application of Fieldbus Technology in beer packaging line provides a new direction and a good foundation for the informatization of Pearl River beer production equipment management

Zhujiang Beer will also establish an upper computer in the future fieldbus control system to form a production line equipment information management system; The field bus technology is conveniently connected with ERP system and Maximo equipment management system to realize the integration of enterprise measurement, control and management. Since all PLCs have industrial Ethernet interfaces, they can communicate seamlessly with the upper computer through the router, and exchange data with the ERP system (database) in the factory to realize a transparent factory. Senior management customers in the plant will be able to pass E8, speed accuracy: ± 0.5%; RP system is very convenient to access and analyze operation data, understand the actual and real-time situation of production, monitor the operation of the workshop, and timely arrange and deal with the problems encountered in production and operation. Design engineers can also conduct remote monitoring and maintenance through Internet

remarks:

the author of this paper, Mr. Zhang Yi, is now an engineer in the equipment department of Zhujiang Beer Group Dongguan Zhujiang Beer Co., Ltd.

Mr. Huang Hai is the director of the measurement and Electrical Department of the equipment department of Guangzhou Zhujiang Beer Co., Ltd.

Mr. Chen Rushan is the deputy general manager of Zhujiang Beer Group Dongguan Zhujiang Beer Co., Ltd.

tips: field equipment installed in the beer production workshop, such as sensors, transmitters, drives Actuators and automatic instruments need digital industrial control networks to seamlessly connect information at the bottom of the factory, which leads to the development of fieldbus technology. In the factory automation system and information integration system, because the information from different occasions is different in quantity, purpose and frequency of use, the factory automation information and communication network is usually classified according to the management level, workshop monitoring level and field equipment level

since fieldbus technology is the extension of computer network and information integration technology of factory management to the bottom of the workshop, fieldbus can be defined as "a serial, digital and multipoint communication data bus between field equipment/instruments installed in the production area and automatic control devices/systems in the control room." Fieldbus is a network system and control system with a single decentralized digital and intelligent measurement and control equipment as the network node, which is connected with the bus to realize information exchange and jointly complete the automatic control function. (end)