KR20030018610A - The Master Board and Slave Board for The POSPA Programable Logic Controller - Google Patents

Abstract

PURPOSE: A profibus master board and slave board for POSPA PLC(Programmable Logic Controller) is provided, which increases a communication speed of a system and makes it easy to construct an industrial network system. CONSTITUTION: According to a master board, a microprocessor(MICRO CPU)(11) is installed on a position of an input/output slot position of a basic mother board of a POSPA PLC including a power supply unit(1) and a CPU unit(2) and a POSPA bus(3) and a bus interface(4) and the input/output slot, and calculates slave station by receiving data calculated in the CPU through the POSPA bus and the bus interface and then transmits it to a corresponding slave board, and processes data transmitted from the slave board using a PROFIBUS-DP protocol and then outputs it to the CPU unit. A 2 port memory(12) is installed between the bus interface and the microprocessor and stores input/output data temporarily. A main memory(13) is connected to the microprocessor, and stores and manages a master program. A dual port memory(14) outputs data being output from the microprocessor to the slave board, and transmits transmitted data of the slave board to the microprocessor. A communication driver(COM-PB)(16) transfers data of the microprocessor being output through the dual port memory to the slave board, and outputs transmitted data of the slave board to the dual port memory. And a logic control part(15) controls each part.

Description

The Master Board and Slave Board for The POSPA Programmable Logic Controller

The present invention relates to a Profibus master board and slave board for phospha PA, and more particularly, to install a master board and a plurality of slave slave boards. The present invention relates to a Profibus master board and a slave board for phospha PID to optimally control the input and output facilities located in the.

Generally, PLC (Programmable Logic Controller) is the most basic and important controller of industrial automation. It is used for many facilities automation of factories, buildings, etc. In addition to operations, the industrial network has been formed to meet various field needs.

In particular, POSPA (hereinafter referred to as phospho) is widely used for steel plant and water treatment. It is capable of serial communication with upper computer, supports Ethernet data link, controls remote input and output contact, and loads the task through window load. Editing, compiling, downloading, monitoring, scheduling, etc.

It is inevitable to network the FELSI with the upper and lower controllers for the overall automation of the factory. In constructing such an industrial network, the transmission time of data and control signals is shortened, data security, real-time response of data, and information error. Reduction should be preceded.

In the industrial network, on the other hand, the construction of a remote data link system capable of controlling and managing remotely located I / O contact points is also important. For the reliability, convenience, stability, scalability, and ease of connection of the network, Fieldbuses such as CAN, VAN, SERCOS, and Bitibus have been developed, but the fieldbuses have problems of limited application fields.

Field filters designed to solve the above problems for general use include international standards such as FIP proposed by France, MIL-STD-1533 in the US, and PROFIBUS in Germany. In particular, FIP and PROFIBUS are internationally recognized universal fields. It is a bus.

The French Instrument Protocol (FIP) implements a centralized communication network by one bus controller, but this method has a problem in that the system configuration is limited because communication is possible only between the FIP methods. In contrast, PROFIBUS implements a distributed and controlled communication network equipped with a master that determines data communication and a plurality of slaves that perform messages in response to the master signal. It can be used without special interface, and it can be used for high speed communication and complex communication. PROFIBUS (hereinafter referred to as PROFIBUS) is a Communication Profile that uses many DP methods to effectively control the communication speed between automation systems and distributed devices, and it can also be installed at low cost.

Therefore, a significant effect is expected when the industrial network including the factory automation is introduced by introducing the PROFIBUS method in the phosphifael, but until now, there is no propfibus board for the phosphifael.

The present invention has been made to solve the problem that the field bus method, in particular, the FIP can be communicated only between the same method, so that the limitation of the industrial network system construction of factory automation occurs, which is not conventional By installing and configuring Profibus master boards and slave boards, we provide Profibus master boards and slave boards for phospha PID, which are applied to remote communication, improve the communication speed of the system, and facilitate the construction of industrial network system. There is a purpose.

1 is a configuration diagram of an embodiment of the master board according to the present invention FIFA PI PROFIBUS master board and slave board,

Figure 2 is a configuration diagram of one embodiment of a slave board according to the present invention FIFA PI PROFIBUS master board and slave board.

<Description of the symbols for the main parts of the drawings>

1, 1 ': Power unit 2: CPU unit

3, 3 ': phospha bus 4, 4': bus interface

5, 5 ': input / output unit 10: master board

11, 21: microprocessor 12: 2-port memory

13, 23: main memory 14, 24: dual port memory

15, 25: logic controller 16, 26: communication drive

20: slave board

The master board 10 according to the present invention, Profibus master board and slave board

The input and output of the basic motherboard of the phospha PID, including the power unit (1), the CPU unit (2), the phospha bus (3, POSPA BUS), the bus interface (4, BUS INTERFACE), and the input and output slots. It is installed in the slot and receives the calculated data from the CPU unit 2 through the phospha bus (3, POSPA BUS) and bus interface (4, BUS INTERFACE) of the phospha Pelci to calculate the slave station to calculate the slave station. A microprocessor 11 (MICRO CPU) which transmits to the board 20 and processes the data transmitted from the slave board 20 into the PROFIBUS-DP protocol and outputs it to the CPU unit 2;

A two-port memory (12, 2PT memory) installed between the bus interface (4, BUS INTERFACE) and the microprocessor (11, MICRO CPU) for temporarily storing and outputting input and output data;

A main memory 13 connected to the microprocessor 11 to store and manage a master program;

Dual port memory 14 outputting data output from the microprocessor 11 (MICRO CPU) to the slave board 20 and outputting transmission data of the slave board 20 to the microprocessor 11 (MICRO CPU). PORT MEMORY),

The microprocessor 11 (MICRO CPU) data output through the dual port memory 14 is transferred to the slave board 20 and the transmission data of the slave board 20 is transferred to the dual port memory 14. Communication drive (16, COM-PB) output to PORT MEMORY)

It characterized in that it comprises a logic control unit 15, CONTROL LOGIC for controlling each part.

In addition, the slave board 20 according to the present invention, the Profibus master board and the slave board 20 for the power unit 1 ', the phospha bus 3', POSPA BUS, and the bus interface 4 ', BUS INTERFACE, It is mounted on the Phosph Fielsch remote motherboard with input and output units (5 '),

Data from the input / output unit 5 'is input to the master board 10 through the phospha bus 3 and the bus interface 4, BUS INTERFACE and transmitted from the master board 10. Microprocessor (21, MICRO CPU) for processing the PROFIBUS-DP protocol and outputting to the output unit 5 ',

A main memory (23, MAIN MEMORY) connected to the microprocessor (21, MICRO CPU) for storing and managing slave programs;

The dual port memory 24 outputs the data output from the microprocessor 21 (MICRO CPU) to the master board 10 and receives the transmission data of the master board 10 and outputs the data to the microprocessor 21 (MICRO CPU). , DUAL PORT MEMORY),

The microprocessor 21 (MICRO CPU) data output through the dual port memory 24 is transferred to the master board 10 and the transfer data of the master board 10 is transferred to the dual port memory 24. A communication drive 26 (COM-DPS) for outputting to the PORT MEMORY;

It characterized in that it comprises a logic control unit 25, CONTROL LOGIC for controlling each part.

Hereinafter, with reference to the drawings will be described in detail the configuration of a preferred embodiment of the propavis master board and the slave board for the present invention configured as described above. The English expression described in the following drawings is omitted for explanation.

1 is a configuration diagram of one embodiment of the master board according to the present invention, FIFA PI PROFIBUS master board and slave board, Figure 2 is a configuration diagram of one embodiment of a slave board. As shown in Figure 1, the master board 10 is installed to be mounted on one side of the basic motherboard of the phosphpael. The basic motherboard of the phospha pies is equipped with a power unit (1), a CPU unit (2), an input / output unit (5), a position control unit, a communication unit, etc., and the phospha bus (3) and bus interface. (4) and the like are also provided.

The CPU unit (2) of phospha pilc is connected to the master board (10) and directly through the input / output unit (5) and the bus interface (3) to read data from the input unit or to the output unit. It is configured to write The master board 10 of the Profibus fieldbus system is installed in the input and output slots of the basic motherboard. The bus interface 4 is connected to the two-port memory 12, and the micro-processor 11 is installed in the two-port memory 12 to perform a master, and the microprocessor 11 control program is stored. The main memory 13 is connected to the microprocessor 11, the dual port memory 14 is connected to one side and the dual port memory 14 is a communication drive 16, COM-PB which is a communication processor is connected Consists of. In addition, the logic control unit 15 is connected to each of the parts to control the entire master board 10 system to operate stably.

The master board 10 configured as described above employs a Profibus-DP protocol, and is mastered using an ASPC2 processor, which is an ASIC (Application-Specific Integrated Circuit) chip from Siemens. The data rate of the board is designed to be up to 12Mbaud, and the microprocessor 11 uses 80C186 model. Also, the transmission line is connected to the master board 10 and the slave board 20 using the RS-485 serial communication interface. It is configured to have communication between).

On the other hand, the slave board 20 is mounted on a remote basic motherboard that receives data from the phosphpael far from the remote control the controller. The remote basic motherboard is provided with a power supply unit 1 ', an input / output unit 5', a bus interface 4 ', a phospha bus 3', and the like, and one side of the power unit 1 '. The slave board 20 is installed.

The slave board 20 has a microprocessor 21 connected to the bus interface 4 ', and the microprocessor 21 has a main memory 23 and a dual port memory (with a microprocessor 21 control program) installed therein. 24) are respectively connected. In addition, the dual memory 24 is connected to the communication drive (communication drive 26, COM-DPS) which is a communication processor, and the logic control unit 25 is connected to each part to control the entire slave board 20 system to operate stably. have.

In addition, the slave board 20 employs the Profibus-DP protocol to efficiently communicate with the master board 10 and to control input and output contact points of each equipment controller. The slave board 20 is designed to transmit data at a speed of up to 12Mbaud, the microprocessor 21 uses 80C186 model, and the master board 10 using the RS-485 serial communication interface method. It is configured to have communication with.

Hereinafter, with reference to the drawings will be described in detail the operation of the preferred embodiment of the present invention FIFA PI PROFIBUS master board and slave board.

As shown in Fig. 1, the CPU unit 2 of the phosphpaielsi generates data to control the input and output contacts which are distributed at a long distance. The data is output to the two port memory 12 connected to the bus interface 4 via the phospha bus 3 and temporarily stored. The two-port memory 12 receives a signal from the microprocessor 11 to output data, and the microprocessor 11 that receives the data receives a slave station of each segment to be controlled by the CPU unit 2. Calculation is input to the dual port memory 14. Of course, the main memory 13 stores a control program of the motherboard 10 so that the microprocessor 11 operates properly, and the logic controller 15 monitors each circuit part of the master board 10. To prevent abnormality from occurring. The dual port memory 14 transmits the input data to the communication drive 16 and the communication drive 16 transmits the data to another communication drive 26 of the slave board 20 through the communication line.

The communication drive 26 of the slave board 20 transmits the input data to the dual port memory 24 and the dual port memory 24 outputs the data signal to the microprocessor 21 of the slave board 20. Done. At this time, the microprocessor 21 is processed to fit the PROFIBUS-DP protocol and transmitted to the output unit 5 'via the bus interface 4' to control a valve or a motor which is an output device.

On the other hand, the progress of data from the input unit 5 'of the slave to the CPU unit 2 of the master is opposite to the data flow, and thus will be briefly described. When data is generated from an input device, such as a sensor connected to a remote motherboard, to the input unit 5 'and data flows to be read by the CPU unit 2 of the Phosph Fielsch, communication with each part of the slave board 20 is performed. Input to the master board 10 through a line, the microprocessor 11 of the master board 10 processes the data and transmits to the CPU unit (2). The CPU unit 2 knows the state of the distributed equipment controller to generate predetermined signal data and also sends a signal to the slave board 20 in the above process.

For reference, the present invention is not limited only to the above embodiments, but it should be noted that modifications can be made within the scope of the technical idea that the claims and the descriptions of the specification have.

The master board and slave board for the present invention, which acts as described above, builds and installs an industrial network that automatically controls industrial equipment, and manufactures and installs a Profibus master board and slave board. It has the advantage of long distance communication, simple network configuration, control of a wide range of plant equipment with multiple slave boards, and communication with different models of PEL time.

Claims (2)

It is installed at the input and output slots of the basic motherboard of phospha pielsi, and is operated by the CPU unit (2) through the phospha bus (3, POSPA BUS) and bus interface (4, BUS INTERFACE). The microprocessor 11 which receives the received data, calculates the slave station, transmits the data to the corresponding slave board 20, and processes the data transmitted from the slave board 20 into PROFIBUS-DP protocol and outputs the data to the CPU unit 2. MICRO CPU); A two-port memory (12, 2PT MEMORY) installed between the bus interface (4, BUS INTERFACE) and the microprocessor (11, MICRO CPU) to temporarily store and output data input and output; A main memory (13, MAIN MEMORY) connected to the microprocessor (11, MICRO CPU) to store and manage a master program; Dual port memory 14 outputting data output from the microprocessor 11 (MICRO CPU) to the slave board 20 and outputting transmission data of the slave board 20 to the microprocessor 11 (MICRO CPU). PORT MEMORY); The microprocessor 11 (MICRO CPU) data output through the dual port memory 14 is transferred to the slave board 20 and the transmission data of the slave board 20 is transferred to the dual port memory 14. A communication drive (16, COM-PB) for outputting to PORT MEMORY; The FIFA PROFIBUS master board, characterized in that it comprises a logic control unit (15, CONTROL LOGIC) for controlling each part. It is installed on the remote motherboard of phospha pielsi and receives data of input / output unit (5 ') through phospha bus (3, POSPA BUS) and bus interface (4, BUS INTERFACE). A microprocessor 21 (MICRO CPU) for processing the data transmitted from the master board 10 to PROFIBUS-DP protocol and outputting the data to the corresponding output unit 5 '; A main memory (23, MAIN MEMORY) connected to the microprocessor (21, MICRO CPU) for storing and managing slave programs; The dual port memory 24 outputs the data output from the microprocessor 21 (MICRO CPU) to the master board 10 and receives the transmission data of the master board 10 and outputs the data to the microprocessor 21 (MICRO CPU). , DUAL PORT MEMORY); The microprocessor 21 (MICRO CPU) data output through the dual port memory 24 is transferred to the master board 10 and the transfer data of the master board 10 is transferred to the dual port memory 24. A communication drive 26 (COM-DPS) for outputting to the PORT MEMORY; A FIFA PSI bus slave board comprising a logic control unit (25, CONTROL LOGIC) for controlling the respective parts.