KR100481995B1 - Target system - Google Patents

Abstract

Purpose: The present invention aims to provide a target system that facilitates efficient data management and system construction by sharing two controllers in one memory.

Configuration: Communication module, main controller including memory and I / O controller, the communication module is connected to the network of the upper level operator computer that manages the historical data to the database, download the control program from the computer and execute it In a target system configured to manage lower remote I / O modules and tasks through an I / O controller, the historical data provided from the upper computer is transmitted through the main controller and the lower remote I / O module. The data provided by is shared by the I / O controller into one memory for writing and reading.

Effectiveness: Consistency is obtained in the acquisition and maintenance of data, and it is convenient for operation, and the cost can be reduced by simplifying the system construction, and there is an effect that the general purpose is secured because no software change is required according to the use environment.

Description

Target system

The present invention relates to a target system, and more particularly, a main controller that manages an operator computer and an entire system, and an I / O controller connected to a remote I / O module that sends control signals to a control object to be shared as a single memory. The present invention relates to a target system that facilitates efficient data management and system construction.

In general, the target system is to control the target control target at a long distance, and is mainly a system that enables remote control of equipment such as a Robert welding apparatus and a large crane.

The conventional configuration and operation of such a target system will be described with reference to FIG. 1, and a control language consisting of a program and data input from a remote operator computer 3 for processing a desired task is connected to a network (NW), connected thereto. Downloaded to the main controller 53 through a communication card, the main controller 53 analyzes and executes the transmitted control language, and transmits a control signal corresponding to the processed user's command to the I / O controller 55. By outputting to the plurality of remote I / O module 7 through, it is to perform a remote control of the control target connected to the remote I / O module (7).

At this time, the control target is an actuator such as a motor, a solenoid, and the like. The control target includes a sensor that detects an operating state as an electric signal and conducts the remote I / O module 7 for accurate control.

The main controller 53 is provided with a memory for storing initial values and types of I / O parameters that are the basis of system operation, and each stack of the memory includes a main controller 53 and an I / O controller 55. Several applications, such as those that run on the server, are stored at the assigned address.

However, in the related art, a separate memory is provided in the I / O controller 55 to map the information of the control object input through the remote I / O module 7 and the data stored in the memory of the main controller 53. This requires more hardware and software elements to build the system. That is, the data downloaded from the control program and the operator computer 3 and the data downloaded from the control object are separately stored in the respective memories provided in the two controllers 53 and 55 as well as for processing them. Since the programs must also be stored separately in these two memories, maintenance of data is not easy, and the cost is high because the cost of the addition of the memory and the construction of the circuits associated therewith is high.

Moreover, such a conventional target system requires that multiple application program interfaces mounted on the system each require the same address space for instantaneous data sharing and modification between the main controller 53 and the I / O controller 55. In the related art, this was solved by a programmer by appropriately changing and setting a physically allocated address in software. If the addresses overlap, the proper address allocation is not easy because contention for accessing the memory occurs. Therefore, in order to operate this, there is a difficulty that the operator must make a lot of efforts.

In addition, in the above-described method, the original program must be modified according to the change of the system use environment such as the initial system construction or the addition of the remote I / O module 7. As it becomes inefficient in terms of versatility, such as difficulty in application, a means for enabling useful management of data and facilitating the construction of a system is required.

The present invention devised to meet the requirements as described above is to share the main controller that manages the operator computer and the system and the I / O controller connected to the remote I / O module that sends control signals to the control target as a single memory By providing a target system, not only the efficient storage and management of data, but also the purpose of ensuring that the versatility is secured even if the operator does not change the software according to the conditions of the use environment and lowers the cost of system construction.

The present invention for achieving the above object is provided with a communication module, a main controller including a memory and an I / O controller, the communication module is connected to a network with a higher operator computer that manages historical data in a database, the computer In a target system configured to download a control program from a computer and execute the same, and to manage lower remote I / O modules and tasks through an I / O controller, historical data provided from the upper computer is controlled through the main controller, and Data provided by the lower remote I / O module is shared to the one memory through an I / O controller to be written and read.

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to FIGS. 1 and 2, and like reference numerals will be given to like elements for clarity of description.

Reference numeral 5 shown in FIG. 1 denotes a target system. The target system 5 includes a communication module 51, a main controller 53 including a memory 533, and an I / O controller 55. same.

As shown in FIGS. 1 and 2, the target system 5 is connected to a network NW with a higher operator computer 3 in which the communication module 51 manages historical data in a database. (3) Download the control program and execute it while managing the lower remote I / O module 7 and tasks through the I / O controller 55, the historical data provided from the upper computer (3) The data provided through the main controller 53 and the lower remote I / O module 7 are shared to the one memory 533 through the I / O controller 55 to be written and read. The historical data provided by the upper computer 3 is transmitted through the main controller 53 and the data provided by the lower remote I / O module 7 via the I / O controller 55. Shared to memory (533) Comprises a structure such that the lock and reading.

According to the present invention, the memory 533 of the main controller 53 stores historical data provided by the upper operator computer 3 and data of the lower remote I / O module 7, which is the main controller. The microprocessor unit MICRO PROCESSOR UNIT 531, hereinafter referred to as MPU, and the memory management unit MMU 551, hereinafter referred to as MMU, are the central processing units of the I / O controller 55. Abbreviated) so that it can be recorded and read.

The MPU 531 which is the central processing unit of the main controller 53 and the MMU 551 which is the central processing unit of the I / O controller 55 are connected in a conventional dual processor connection method, and the MPU ( The read / write strobe output terminal R / W and the address terminals AL to A23 of the MMU 551 and the MMU 551 have a circuit configuration commonly connected to the memory 533.

Here, the MPU 531 of the main controller 53 and the MMU 551 of the I / O controller 55 have the same address in a source program stored in the memory 533 and operating the entire system 5. Is set and stored. That is, the historical data provided from the upper operator computer 3 and the data of the lower remote I / O module 7 are separately provided in the main controller 53 and the I / O controller 55 as in the related art. It is not stored and managed as two memories of R, but is shared and stored and managed in one memory 533. At this time, the addresses of the main controller 53 and the I / O controller 55 are equally set in advance.

The lower remote I / O module 7 and the I / O controller 55 are connected to a fieldbus BUS in which Profibus is used, and the use of the fieldbus BUS is controlled by the I / O. The controller 55 controls the signal input and output to and from the remote I / O module 7 and the task. Reference numeral 57 in the figure is a direct I / O module 7 for connection with a control object not by remote control, and may be omitted from the configuration.

According to the present invention configured as described above, a control language of a program and data input from a remote operator computer 3 to process a desired task is communicated with the communication module 51 of the target system 5 connected thereto via a network NW. The main controller 53 is downloaded to the main controller 53, and the main controller 53 analyzes the transmitted control language to execute the control program.

As such, the main controller 53 transmits a control signal corresponding to the processed user command to the I / O controller 55, and the I / O controller 55 transmits the control signal of the main controller 53. As a result, a plurality of remote I / O modules 7 receive status signals on the status of the control targets and control the respective tasks, and output appropriate control signals to the control targets connected to the remote I / O module 7. By doing so, it is to optimize the remote control of the control target consisting of actuators such as motors, solenoids and sensors.

As described above, the present invention allows the main controller that manages the operator computer and the entire system, and the I / O controller connected to the remote I / O module that sends control signals to the control object to be shared in one memory. As the consistency is obtained in the acquisition and maintenance of the system, it is convenient for operation, and the cost can be reduced by simplifying the system construction, and the general purpose is secured because no software change is required according to the use environment.

1 is a configuration diagram of association with a typical target system and a peripheral device for explanation of the present invention;

2 is a circuit diagram showing a connection relationship between a memory system constituting a target system of the present invention;

* Description of the symbols for the main parts of the drawings *

3. Operator computer NW. Network

5.Target System 7.Remote I / O Module

51.Communication module 53.Main controller

55.I / O Controller 531.MPU

533.Memory 551.MMU

BUS Fieldbus

Claims (3)

An upper operator computer (3) having a communication module (51), a main controller (53) including a memory (533), and an I / O controller (55), wherein the communication module (51) manages historical data in a database. And a target system connected to a network (NW) and configured to manage a lower remote I / O module 7 and tasks through an I / O controller 55 while downloading and executing a control program from the computer 3. The historical data provided by the upper computer 3 is transmitted through the main controller 53 and the data provided by the lower remote I / O module 7 to the I / O controller 55. And share and write to and read from the memory (533). The MPU 531 which is a central processing unit of the main controller 53 and the MMU 551 which is a central processing unit of the I / O controller 55 are connected in a conventional dual processor connection method. And the read / write strobe output terminals (R / W) and the address terminals (AL to A23) of the MPU (531) and the MMU (551) are commonly connected to a memory (533). The lower remote I / O module 7 and the I / O controller 55 are connected by a fieldbus, and the use of the fieldbus is controlled by the I / O controller. A target system characterized by controlling the input / output of the signal with the remote I / O module (7).