With the development of control, computer, communication, and network technologies, the field of information exchange rapidly covers everything from the plant's field device layer to control and management, and an enterprise information system based on a network integrated automation system is gradually being formed. Phoenix Contact Co., Ltd. is a well-known German automation electrical company. It conforms to this trend and becomes one of the first manufacturers to successfully develop industrial field buses in the world. Its INTERBUS bus is widely used in automobiles, tobacco, logistics, ports, papermaking, food, etc. every industry. In 1998, it became the European standard EN50254. In February 2000, it became the international standard IEC61158, and in 2004 it became the Chinese standard GB10308.
The integration, stability, and diagnosis of the system by the INTERBUS bus bring great convenience to the user, and it is quickly supported by the customers and has been widely used. It has successfully applied 6.5 million nodes worldwide and is supported by various product manufacturers. At present, more than 1,000 manufacturers worldwide provide more than 2,500 INTERBUS fieldbus products.
INTERBUS Bus Based on ISO/OSI's seven-layer communication standard model, the bus physical layer uses the RS485 serial communication standard and uses ring-type data links. The transmission rate is constant at 500K and 2M. Tree topology, connecting 254 sub-stations, easy to layer, easy to expand. The distance between each two sub-stations can reach 400 meters, and the total length of the entire system is 12.8 kilometers when using shielded twisted pair transmission. And in the same system, three transmission media (twisted pair cable, fiber optic, infrared) can be mixed as needed. In particular, it is worth mentioning that its powerful diagnostic function is unique to INTERBUS from other buses. The separate diagnostic program provides detailed fault information (fault address, fault type, and fault history). Among them, the accurate fault address provides the possibility for the user to quickly troubleshoot. The topology is as follows:
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The differential voltage signal of the INTERBUS bus on the twisted pair ensures a strong immunity to interference. By exchanging the special status information to check the connection of the adjacent INTERBUS device, as a result of the remote bus check, a corresponding error message can be generated from the breakage or poor contact of the bus cable. And there is an iconic return word in the data loop. The bus control board compares the time of one scan cycle. At the same time, the bus control board finds the error in the transmission path or bus device according to the special bit sequence of the return word. The redundancy check of the transmission paths in both bus devices is performed periodically. This kind of transmission reliability is guaranteed.
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There are 3 yards arranged in a coal yard at a northern port, and the length of the yard is 1105M. Due to the large area of ​​the storage yard, the coal is stored in the open air and coal dust is generated during the wind and stacking process, causing environmental pollution. In order to prevent coal dust from polluting the port and the surrounding environment, the dump site was sprinkled with water and dust. The project was designed by Tianjin No.1 Aviation Institute using the INTERBUS system, and a Beijing company has integrated the system. It has been put into production and has achieved very good results.
During the design of the project, 33 watering spray guns were installed for each yard, and a total of 198 spray guns were used. The automatic spraying operation system at the yard used the INTERBUS bus from Phoenix. There were a total of 153 substations, and the water supply equipment for the spray gun operation and the transfer equipment room terminal. The job performs signal acquisition and control. Due to the large number of sub-stations in this project, it is widely distributed and has a long distance. Because the port is located in the north, the winter temperature can reach minus 20 degrees, PLC protection level is relatively low, the general working temperature is 40 degrees at zero, it is difficult to meet the requirements of the site harsh environment. If the PLC is placed in the control room using the traditional centralized control, it will consume a large number of control cables and cable trays, and greatly increase the amount of laying cables and the installation of bridges, at the same time bring great inconvenience to the commissioning, and to the future The maintenance has created great difficulties.
In view of the above situation, in order to meet the requirements of on-site environment, process, and ease of maintenance, a system with a large number of control substations, simple wiring, easy maintenance, an operating temperature range that adapts to the on-site environment, a system that is safe and reliable, and a powerful diagnostic function is selected. INTERBUS system can be connected to Phoenix's own controller, it can also connect ROCKWELL, SIEMENS, SCHNEIDER and other company's PLC, control the number of substations up to 254, using a bus cable connection, the total transmission distance of up to 12.8KM, working temperature The range is from minus 25 degrees to minus 55 degrees. It uses fiber optic cable for data transmission from dock water supply equipment beyond 800 meters. The powerful diagnosis function brings great convenience to maintenance and other advantages become the designer's first choice.
The designer designed the system as a multi-level, open distribution data collection and monitoring management system consisting of computers, PLCs, and INTERBUS field buses. The system uses a ROCKWELL large CONTROLLOGIX PLC as a host, the CPU is 1756-L55M24, with 1756-ENBT Ethernet interface module for the upper monitoring operator station network connection, and the other two Phoenix INTERBUS control card provided by the company SST IBS CLX RLL to control field I/O data.
The entire system uses the INLINE module which won the European Industrial Design Award. This series of modules is divided into bus coupler and digital, analog input and output, power supply module and power supply segmentation module, special function module, etc. The operating temperature range is from minus 25 degrees to 55 degrees above zero. Spring terminal blocks and electronic modules are adopted. Separately connected, various modules are side-mounted, and connecting with conventional methods saves 70% of installation time. According to the requirements of the site, any module can be arbitrarily matched. Each module has a diagnostic indication LED. Based on the flash frequency, bus faults and peripheral equipment faults can be determined. This product has a protection class of IP20 and an operating temperature range of -250C to +550C. It is placed in the control box of IP67 protection level on site.
The first Interbus bus controls the sprinkler gun control station and unloading line transfer room heater and fire alarm control station (75 pieces) of the stack line yard through the first SST IBS CLX RLL bus control card, the second line INTEBUS Another SST IBS CLX RLL bus control card is used to control the control station of sprinkler guns in the picking line yard and the heater and fire alarm control station in the shipyard line transfer room. Each control station is equipped with an Interbus bus adapter IBS IL. 24 BK-T/U-PAC and a standard power supply module PS240AC/24DC, each control station depending on the number of field control points, configure different I / O, the most control station configuration is 16 input, 8 output; control station The minimum configuration is 8 inputs. The system has a total of 153 field control stations with a total of about 3,000 control points.
Because the sprinkling pump room control room and the two-way output fieldbus control station are more than 800M, at the same time, the adjacent bus distances at the three slave stations such as the shipyard line transfer room to the terminal control station also exceed 400M. Therefore, the above four points use multi-mode glass fiber as the transmission medium, the distance between other slave stations is within 400M, so the bus data is transmitted in twisted pair mode. The bus cable to be laid using the Interbus fieldbus scheme is approximately 7km, the control cable is approximately 6km, and the 4-core optical cable is 3km, totaling 17km, which is far lower than that required for centralized control using the PLC system.
The sprinkler control system allows automatic control of each sprinkler station's equipment via the Interbus fieldbus. Each sprinkler station consists of a motorized valve and an electric pendulum. It automatically controls the outflow of the gun according to the command data transmitted by the Interbus fieldbus. Swing and automatic heating (only used in winter). According to the requirements of the sprinkler process, the maximum number of simultaneous use of each group of spray guns is 10. Each group of guns can be automatically switched in sequence. Each time the gun is sprayed can be adjusted through the monitoring station and sprayed in sequence until all 198 guns in the yard are sprayed all over again to complete a sprinkler work cycle.
The sprinkler system PLC is connected with the two upper monitoring operators via the switch. The monitoring station uses the industrial PC and is equipped with liquid crystal color display. The upper monitoring software configures two sets of Intouch9.0 Unlimited Runtime software to complete functions such as operation, monitoring, sprinkler status display and fault status display of the sprinkler control system. The sprinkler control system exchanges data with the control system server located in the central control room as a subsystem of the entire coal dock control system, and outputs the operation information of the sprinkler system of the yard, and receives the stacker stocker sent from the central control system. The position of the reclaimer in the storage yard and coal stacking information, in the automatic sprinkler spray gun operation mode, when it is possible to spray on the walking machine, or when there is no stockpile at the yard, the control system can automatically skip the walking machine. Or no stockyard.
With the construction of port modernization, more and more informatization and automation systems have been applied to them. From Phoenix, Germany provides excellent full range of automation products and excellent after-sales services to serve China and serve the port industry in Qinhuangdao. Ports like Rizhao and Rizhao have been used in a large number of applications and have been well received by users.
The integration, stability, and diagnosis of the system by the INTERBUS bus bring great convenience to the user, and it is quickly supported by the customers and has been widely used. It has successfully applied 6.5 million nodes worldwide and is supported by various product manufacturers. At present, more than 1,000 manufacturers worldwide provide more than 2,500 INTERBUS fieldbus products.
INTERBUS Bus Based on ISO/OSI's seven-layer communication standard model, the bus physical layer uses the RS485 serial communication standard and uses ring-type data links. The transmission rate is constant at 500K and 2M. Tree topology, connecting 254 sub-stations, easy to layer, easy to expand. The distance between each two sub-stations can reach 400 meters, and the total length of the entire system is 12.8 kilometers when using shielded twisted pair transmission. And in the same system, three transmission media (twisted pair cable, fiber optic, infrared) can be mixed as needed. In particular, it is worth mentioning that its powerful diagnostic function is unique to INTERBUS from other buses. The separate diagnostic program provides detailed fault information (fault address, fault type, and fault history). Among them, the accurate fault address provides the possibility for the user to quickly troubleshoot. The topology is as follows:
The differential voltage signal of the INTERBUS bus on the twisted pair ensures a strong immunity to interference. By exchanging the special status information to check the connection of the adjacent INTERBUS device, as a result of the remote bus check, a corresponding error message can be generated from the breakage or poor contact of the bus cable. And there is an iconic return word in the data loop. The bus control board compares the time of one scan cycle. At the same time, the bus control board finds the error in the transmission path or bus device according to the special bit sequence of the return word. The redundancy check of the transmission paths in both bus devices is performed periodically. This kind of transmission reliability is guaranteed.
There are 3 yards arranged in a coal yard at a northern port, and the length of the yard is 1105M. Due to the large area of ​​the storage yard, the coal is stored in the open air and coal dust is generated during the wind and stacking process, causing environmental pollution. In order to prevent coal dust from polluting the port and the surrounding environment, the dump site was sprinkled with water and dust. The project was designed by Tianjin No.1 Aviation Institute using the INTERBUS system, and a Beijing company has integrated the system. It has been put into production and has achieved very good results.
During the design of the project, 33 watering spray guns were installed for each yard, and a total of 198 spray guns were used. The automatic spraying operation system at the yard used the INTERBUS bus from Phoenix. There were a total of 153 substations, and the water supply equipment for the spray gun operation and the transfer equipment room terminal. The job performs signal acquisition and control. Due to the large number of sub-stations in this project, it is widely distributed and has a long distance. Because the port is located in the north, the winter temperature can reach minus 20 degrees, PLC protection level is relatively low, the general working temperature is 40 degrees at zero, it is difficult to meet the requirements of the site harsh environment. If the PLC is placed in the control room using the traditional centralized control, it will consume a large number of control cables and cable trays, and greatly increase the amount of laying cables and the installation of bridges, at the same time bring great inconvenience to the commissioning, and to the future The maintenance has created great difficulties.
In view of the above situation, in order to meet the requirements of on-site environment, process, and ease of maintenance, a system with a large number of control substations, simple wiring, easy maintenance, an operating temperature range that adapts to the on-site environment, a system that is safe and reliable, and a powerful diagnostic function is selected. INTERBUS system can be connected to Phoenix's own controller, it can also connect ROCKWELL, SIEMENS, SCHNEIDER and other company's PLC, control the number of substations up to 254, using a bus cable connection, the total transmission distance of up to 12.8KM, working temperature The range is from minus 25 degrees to minus 55 degrees. It uses fiber optic cable for data transmission from dock water supply equipment beyond 800 meters. The powerful diagnosis function brings great convenience to maintenance and other advantages become the designer's first choice.
The designer designed the system as a multi-level, open distribution data collection and monitoring management system consisting of computers, PLCs, and INTERBUS field buses. The system uses a ROCKWELL large CONTROLLOGIX PLC as a host, the CPU is 1756-L55M24, with 1756-ENBT Ethernet interface module for the upper monitoring operator station network connection, and the other two Phoenix INTERBUS control card provided by the company SST IBS CLX RLL to control field I/O data.
The entire system uses the INLINE module which won the European Industrial Design Award. This series of modules is divided into bus coupler and digital, analog input and output, power supply module and power supply segmentation module, special function module, etc. The operating temperature range is from minus 25 degrees to 55 degrees above zero. Spring terminal blocks and electronic modules are adopted. Separately connected, various modules are side-mounted, and connecting with conventional methods saves 70% of installation time. According to the requirements of the site, any module can be arbitrarily matched. Each module has a diagnostic indication LED. Based on the flash frequency, bus faults and peripheral equipment faults can be determined. This product has a protection class of IP20 and an operating temperature range of -250C to +550C. It is placed in the control box of IP67 protection level on site.
The first Interbus bus controls the sprinkler gun control station and unloading line transfer room heater and fire alarm control station (75 pieces) of the stack line yard through the first SST IBS CLX RLL bus control card, the second line INTEBUS Another SST IBS CLX RLL bus control card is used to control the control station of sprinkler guns in the picking line yard and the heater and fire alarm control station in the shipyard line transfer room. Each control station is equipped with an Interbus bus adapter IBS IL. 24 BK-T/U-PAC and a standard power supply module PS240AC/24DC, each control station depending on the number of field control points, configure different I / O, the most control station configuration is 16 input, 8 output; control station The minimum configuration is 8 inputs. The system has a total of 153 field control stations with a total of about 3,000 control points.
Because the sprinkling pump room control room and the two-way output fieldbus control station are more than 800M, at the same time, the adjacent bus distances at the three slave stations such as the shipyard line transfer room to the terminal control station also exceed 400M. Therefore, the above four points use multi-mode glass fiber as the transmission medium, the distance between other slave stations is within 400M, so the bus data is transmitted in twisted pair mode. The bus cable to be laid using the Interbus fieldbus scheme is approximately 7km, the control cable is approximately 6km, and the 4-core optical cable is 3km, totaling 17km, which is far lower than that required for centralized control using the PLC system.
The sprinkler control system allows automatic control of each sprinkler station's equipment via the Interbus fieldbus. Each sprinkler station consists of a motorized valve and an electric pendulum. It automatically controls the outflow of the gun according to the command data transmitted by the Interbus fieldbus. Swing and automatic heating (only used in winter). According to the requirements of the sprinkler process, the maximum number of simultaneous use of each group of spray guns is 10. Each group of guns can be automatically switched in sequence. Each time the gun is sprayed can be adjusted through the monitoring station and sprayed in sequence until all 198 guns in the yard are sprayed all over again to complete a sprinkler work cycle.
The sprinkler system PLC is connected with the two upper monitoring operators via the switch. The monitoring station uses the industrial PC and is equipped with liquid crystal color display. The upper monitoring software configures two sets of Intouch9.0 Unlimited Runtime software to complete functions such as operation, monitoring, sprinkler status display and fault status display of the sprinkler control system. The sprinkler control system exchanges data with the control system server located in the central control room as a subsystem of the entire coal dock control system, and outputs the operation information of the sprinkler system of the yard, and receives the stacker stocker sent from the central control system. The position of the reclaimer in the storage yard and coal stacking information, in the automatic sprinkler spray gun operation mode, when it is possible to spray on the walking machine, or when there is no stockpile at the yard, the control system can automatically skip the walking machine. Or no stockyard.
With the construction of port modernization, more and more informatization and automation systems have been applied to them. From Phoenix, Germany provides excellent full range of automation products and excellent after-sales services to serve China and serve the port industry in Qinhuangdao. Ports like Rizhao and Rizhao have been used in a large number of applications and have been well received by users.
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