Shanghai Volkswagen Automotive Co., the new model GOL Auto Plant, and in fact in the original line of production, because the old paint shop control system has been used in recent years, can not meet the requirements of modern automobile manufacturing, therefore, decided to Shanghai Volkswagen to remodel it. With advanced, reliable, easy maintenance, starting point, Shanghai Volkswagen finally adopted our program, that are used throughout the workshop Mitsubishi Electric s PLC system and with CC-LINK to the paint shop equipment, networking, centralized control.
Shanghai Volkswagen and old paint shop can be divided into several steps: lose paint, pretreatment, PVC paint, bottom paint, ground chain and hanging by the chain conveyor chain connecting the entire workshop.
The function of each configuration instructions:
1. Pretreatment: The main function is based on different process control related pumps, valve operation, a DI 140 points, DO 160 points. Mitsubishi Q series PLC uses, and with local HMI, for equipment and other regional settings automatically and in situ information display.
2. Lose paint: main function is to control the different materials under the paint flow formula, there are DI 48 points, DO 64 points, AI 24 points. Mitsubishi Q Series PLC using.
3. Hanging chain: The main function is to control the hoisting chain ordered arrangement of the production line of vehicles, and vehicles in different places of residence time work, there are DI 360 points, DO 180 points. Mitsubishi Q series PLC uses, and with local HMI, and other settings for the equipment operation mode and in situ information display.
4. Ground Chain: The main function is to control the ground chain ordered arrangement of the production line of vehicles, and vehicles in different places of residence time work, there are DI 180 points, DO 96 points. Mitsubishi Q Series PLC using.
5. PVC paint: The main function is different from the paint process control related to the operation of fans, there are DI 64 points, DO 64 points. Mitsubishi FX2N Series PLC used.
6. Bottom Paint: The main function is different from the paint process control related to the operation of fans, there are DI 32 points, DO 32 points. Mitsubishi FX2N Series PLC used.
7. In addition, there are 24 road from the different work temperature, humidity and pressure analog signals through the CC-LINK remote analog module collected in the control room.
8. CC-LINK main station located in the central control room, the Mitsubishi Q series PLC, the PLC through the CC-LINK responsible for collecting all kinds of information, and in a simulated real-time display screen operating conditions throughout the plant in case of exceptions made to the Police, to alert the operator the first time adjusted accordingly. In addition, the Master Control Room with IPC with, the PC can be shown in more detail the operation of the plant, the operator can modify in the master control room of various operating parameters, greatly improves production efficiency.
In this project, CC-LINK range of excellent performance into full play, its mainly in the following areas:
1. High speed communication: the equipment involved and spread throughout the paint shop, the actual communication range of about 500 meters, at first we are worried that communications will cause network data transmission rate of the bottleneck, but eventually the actual use rate is 625Kbps, far more than we expected. The physical environment in the factory to achieve this rate, it should be the leader in its class.
2. Ease of use: as Shanghai Volkswagen on the progress of the project requires very tight, the entire project site construction and commissioning time for two weeks, but we are on quality, quantity to complete the task, with Shanghai Volkswagen are considered a miracle. In fact, in large part thanks to the CC-LINK s easy to use, CC-LINK in the Mitsubishi Q series PLC in a very easy to use, even without programming, simply set a few simple parameters of the network can be easily accomplished connection.
3. High reliability: As the CC-LINK with automatic on-line resume, standby master, cut off from the station to confirm the link status, testing and diagnosis of extensive RAS features, it constitutes a network system with high reliability. From November 2002 put into operation the system has never had network outages, the system operating normally.
4. Large volume of data: Because the system the amount of data that some larger sites, we set a large number of cycle to transmit data at the same time, more use of CC-LINK s instant transmission, further increasing the amount of data transmission, thus ensuring production must be no omissions in the information required to be transmitted to the station.
5. Low Cost: The cost of the entire system configuration form look, CC-LINK is no doubt came out top in its class, this is also our competitors in many of the important reasons.
Through the successful transformation of Shanghai Volkswagen Plant level of automation in the paint shop has been a qualitative leap, GOL fully meet the production needs of the new models, while achieving a workshop production line information exchange, information for the modern factory Management has laid a solid foundation, as the workshop for further integration of various resources, equipment, time to failure greatly improved the production efficiency and management level to a new level. Of course, we can once again enjoy the superior performance of CC-LINK.