KR101690187B1 - Opticasl fibre technical using input-output control card expansion device of the distributed control system - Google Patents

Abstract

The present invention relates to an input / output control card expansion device of a distributed control system (DCS) using optical communication technology,
An optical communication slave module which is built in a process control device rack of the DCS and which is responsible for communication with a local device while expanding a virtual port, and consisting of a master and a slave;
An optical communication data module which is built in a remote controller rack and which communicates information from a remote expansion input / output card to a process control device and locally allocates a virtual port set by the main device, and is composed of a master and a slave;
A digital input card for receiving 0/1 logic information from the remote expansion input / output card and sending it to the optical communication data module to be transferred to the optical communication slave module of the process control device;
A digital output card for outputting information received from the optical communication data module to the remote expansion input / output card as an ON / OFF contact signal;
An analog input card that incorporates an ADC to convert the analog values input from the remote expansion input / output card to digital and send it to the optical communication data module;
DAC, so that the information received from the optical communication data module is composed of an analog output card that outputs analog value to the remote expansion input / output card.

Description

TECHNICAL FIELD [0001] The present invention relates to an input / output control card expansion device for a distributed control system (DCS) using optical communication technology,

The present invention relates to an input / output control card expansion device of a distributed control system (DCS) using an optical communication technology, and more particularly, to a process control device (PCU) rack, an optical communication slave module (FCSM) (I / O) data to and from the process module by supporting a slave expander bus (I / O) expansion bus, and the optical communication slave module (FCSM) (I / O) of the I / O card, and operates as a maximum of five (5) I / O cards, while the lower remote controller rack is provided with an optical communication slave module (FCSM) (FCSM) board and the optical communication data module (FCDM) by allowing the optical communication data module (FCDM) to exchange data with the optical communication slave module (FCSM) By the board The present invention relates to an input / output control card expansion device of a distributed control system (DCS) using an optical communication technology capable of supporting a long distance interface at a maximum distance of 5 km.

In general, the technology of industrial plant control system has been developed as a so-called distributed control system (hereinafter referred to as DCS) due to the use of digital process in the 1980's, starting with pneumatic analog control equipment.

Various industrial plants including power plants have been constructed and used according to the purpose of the first plant, but there are many cases where various additional facilities for changing the process are required through diversity of products and technology development.

In particular, it is necessary to add surveillance equipment and control equipment in order to operate the equipment in an aging manner, in order to improve efficiency and prepare for equipment accidents.

This is because, in the control aspect, in a plant in which all the control devices are concentrated in the same place as the electronic equipment room, in order to concentrate the monitoring equipment information in the electronic equipment room, not only the expansion of the DCS input / There are many additional problems that must be addressed.

In addition, the plant is designed with a certain degree of scalability during construction, and DCS, which is a control system, also reflects the spare input / output.

However, expansion of facilities is inevitable due to lack of points, system overload such as communication and process, and it is difficult to install additional DCS in the limited space of electronic equipment room.

Therefore, to solve such difficulties, it is necessary to develop a remote DCS technology in which I / O signals are placed on the site for the distributed control function of the original DCS without concentrating all monitoring equipment signals in a limited electronic equipment room.

For remote DCS, a combination of DCS communication protocol analysis and optical communication technology is needed to connect the DCS to the I / O card and the electronic room.

Thus, Patent Application No. 10-2012-0049040 of May 9, 2012 (a large-scale DCS verification apparatus using a real-time simulator and system switching and a verification method thereof) has been proposed,

This Sim node unit drives a simulator process modeling unit of a power plant to which DCS is applied, and performs a system switching operation and an auto-comparator function of a simulated DCS to be verified;

DCS system or simulator control system, which is connected to the Instructor Station;

Stimulated DCS for nuclear and thermal power plants to be verified;

Master node I / O Process node;

A DCS side I / O process node for input / output on the DCS system side; And

And a master node unit for managing the master node I / O process node and the DCS side I / O process node. In order to verify DCS for a large-scale nuclear or thermal power system, For the verification, the process models are prepared for each control system and the existing inefficient approach, which requires a combination of these control systems or another process model for testing of the entire control system, The system switching from the software control system to the DCS control system can be selected on a system-by-system basis by integrating a single process model, thereby facilitating the verification of large-scale DCS.

And a patent application No. 10-2011-0088225 filed on August 31, 2011 (a network security system of a power plant integrated control system)

This includes a DCS network coupled to distributed control systems that control generation facilities;

An external network dedicated router connected to the in-house network and the Internet;

A unidirectional gateway connecting the DCS network and the external network-dedicated router; And

And a network monitoring server for detecting and blocking access to harmful traffic that is attempting to intrude into the DCS network, thereby detecting a harmful traffic attempting to intrusion into a network of a power plant integrated control system, and establishing a cyber security solution So that the cyber security system can be strengthened.

In addition, Patent Application No. 10-2004-0034513 (input / output electronic card inspecting apparatus of a distributed control apparatus) of May 15, 2004 has been proposed,

This is an apparatus for inspecting input / output electronic cards of a distributed control apparatus for automating process control of a desulfurization facility,

A controller module which receives power and transmits the signals to the respective units and provides inspection signals to the input / output electronic cards of the distributed control device,

An address setting unit configured by an 8-bit switch to set an address of an input / output electronic card of the distributed control apparatus,

A card connecting portion connected to the input / output electronic card of the distributed control device via the connector,

A display unit for displaying a digital signal state, a relay board for relaying a digital signal,

And a panel computer connection unit connected to the panel computer, so that a single instrument can automatically check the functions of the input / output electronic card of the distributed controller and store the desired data in the computer hard disk.

However, according to the above-described conventional optical communication technology, all process control units (PCU) panels are installed in the electronic equipment room, the compatibility with the interface is limited and the usable products are limited, Cable), so that the cost of the wire connection is problematic due to a problem caused by the erroneous operation at the time of wiring, which has a disadvantage that the operation time of the product is short.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a process control unit (PCU) Slave Expander BUS to send and receive I / O data to and from the process module. The optical communication slave module (FCSM) is connected to the slave I / O), the I / O cards are combined to operate as a maximum of 5, and an optical communication data module (FCDM) for exchanging data with the optical communication slave module (FCSM) is installed in the lower remote controller rack Communication distance can be up to 5Km by using optical communication slave module (FCSM) board and optical communication data module (FCDM) board by making communication with optical communication slave module (FCSM) with 100Mbps light. And to provide an input / output control card expansion device of a distributed control system (DCS) using an optical communication technology.

According to an aspect of the present invention, there is provided an input / output control card expansion device of a distributed control system (DCS)

DCS Process Control Unit (PCU) Built in a rack to extend the virtual port while communicating with the local device. An optical communication slave module (Master) and a slave (slave) FCSM (Fiber Optic Communication Slave Module)

It is built into the lower remote controller rack to communicate information from the remote expansion input / output card (I / O) to the process control unit (PCU), which is the main unit. A fiber optic communication data module (FCDM) composed of a master and a slave in preparation for communication failure,

And outputs the 0/1 logic information from the remote expansion input / output card (I / O) to the optical communication data module (FCDM), and the optical communication slave module (FCSM) of the process control unit (PCU) (Digital Input CARD) to be transmitted to the mobile terminal,

A digital output card for outputting information received from an optical communication data module (FCDM) to a remote expansion input / output card as an ON / OFF contact signal,

Analogue Digital Converter (ADC), which converts the analog values input from the remote expansion input / output card (I / O) to digital and sends them to the Fiber Optic Communication Data Module (FCDM) A card (Analog Input CARD)

An analog output card that outputs the information received from the Fiber Optic Communication Data Module (FCDM) to the remote expansion input / output card (I / O) with an analog value by incorporating a DAC (Digital to Analog Converter) Analog Output CARD).

By means of the input / output control card expansion device of the distributed control system (DCS) using the optical communication technology according to the present invention, the process control unit (PCU) panel in the electronic equipment room can be distributed on the field And I / O (Input / Output Unit) expansion of process control unit (PCU) through ABB slave expansion bus. O: Input / Output Unit) can be extended, compatibility can be improved by various interfaces, and electrical connection can be made without depending on cable, The maintenance is simple and the problem can be solved in a short time, so that the operation time of the product can be increased.

1 is a block diagram showing an overall configuration of the present invention;
2 is a block diagram showing the configuration of an input / output control card expansion device of a distributed control system (DCS) using optical communication technology of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 schematically shows an overall configuration of a distributed control system (DCS) using optical communication technology according to the present invention,

Process control functions are distributed to multiple computers in the power plant electronic equipment room to improve reliability and minimize the ripple effect in case of an error. Process information processing and driving operation and management functions of distributed computers are performed by a centralized operator interface system (OIS) Operator Interface System (DCS), which facilitates data processing and operation management.

In the Operator Interface System (OIS) described above, a network processing module (NPM: Network Processing Module) is connected through a network communication network by using Information Communication Technology (ICT) and Network Interface Slave Module (NIS) Module, a multi-function processor module (MFP) and a process control unit (PCU)

I / O (Input / Output Unit) using Fiber Optic Communication Slave Module (FCSM) and Fiber Optic Communication Data Module (FCDM) So that it can be selectively controlled.

2 schematically shows an overall configuration of an input / output control card expansion device of a distributed control system (DCS) using optical communication technology according to the present invention,

DCS Process Control Unit (PCU) Built into the Rack (1), it is responsible for communication with the local device while expanding the virtual port. The master (3) and slave (slave) 4, a fiber optic communication slave module (FCSM) 2,

(PCU) 1, which is a main unit, in the remote controller rack 10, which is a lower unit of the main controller, and transmits information from the remote expansion input / output card (I / And allocates the virtual port set by the device locally. In order to prevent a communication failure, an optical communication data module (FCDM) 13 consisting of a master 12 and a slave 13 is provided, (11)

(0/1) logic information from the remote expansion input / output card (I / O) 20 and sends it to the optical communication data module (FCDM) (Digital Input CARD) 14 (14a) to be transmitted to the optical communication slave module (FCSM)

A digital output card (Digital) 20 for outputting information received from an optical communication data module (FCDM) 11 to a remote expansion input / output card (I / O) 20 as an ON / Output CARD 15,

(Analog to Digital Converter) to convert the analog value inputted from the remote expansion input / output card (I / O) 20 to digital and transmit the digital data to the optical communication data module (FCDM) 11 (Analog Input CARD) 16 for transmitting the analog input signal

(DAC), so that information received from an optical communication data module (FCDM) 11 is converted into an analog value into a remote expansion input / output card (I / O) 20 And an analog output card 17 for outputting the analog output signal.

The input / output control card expansion device of the distributed control system (DCS) using the optical communication technology of the present invention having the above-

Process control functions are distributed to multiple computers in the power plant electronic equipment room to improve reliability and minimize the ripple effect in case of an error. Process information processing and driving operation and management functions of distributed computers are performed by a centralized operator interface system (OIS) Operator Interface System (DCS) to facilitate data processing and operation management.

In the Operator Interface System (OIS) described above, a network processing module (NPM: Network Processing Module) is connected through a network communication network by using Information Communication Technology (ICT) and Network Interface Slave Module (NIS) Module), a multi-function processor module (MFP) and a process control unit (PCU).

(I / O) using a Fiber Optic Communication Slave Module (FCSM) and a Fiber Optic Communication Data Module (FCDM) And the like.

Meanwhile, an input / output control card expansion device of a distributed control system (DCS) using optical communication technology, which is a main constituent of the present invention,

A Fiber Optic Communication Slave Module (FCSM) 2, which is embedded in a process control unit (PCU) rack (1) of a DCS and is responsible for communication with a local device while expanding a virtual port, (3) and a slave (4) in order to prevent trouble, so that communication can be smoothly performed in a state in which there is no communication failure.

(PCU) 1, which is a main unit, in the remote controller rack 10, which is a lower unit of the main controller, and transmits information from the remote expansion input / output card (I / An optical communication data module (FCDM) 11 for locally allocating a virtual port set by the device is connected to a master 12 and a slave 13) so that communication can be smoothly performed in a state in which there is no communication failure.

A digital input CARD 14 (14a) receiving 0/1 logic information from a remote expansion input / output card (I / O) 20 converts a digital signal into an optical communication data module (FCDM: Fiber Optic Communication Data Module 11 to be transmitted to the optical communication slave module (FCSM) 2 of the process control unit (PCU) 1.

The digital output card 15 receiving information from the optical fiber communication data module 11 transmits the information to the remote expansion input / output card 12 as the ON / OFF digital contact signal. (I / O) 20 so that a plurality of devices can be selectively controlled.

An analog input CARD 16 that incorporates an analog-to-digital converter (ADC) and converts the analog values input from the remote expansion input / output card (I / O) (FCDM) 11 to be transmitted to the optical communication slave module (FCSM) 2 of the process control unit (PCU)

An analog output card 17 incorporating a DAC (Digital to Analog Converter) is connected to a process control unit (PCU) 1 via an optical communication data module (FCDM) Output interface (I / O) 20 with analog values received from the optical communication slave module (FCSM) 2 of the optical communication slave module (FCSM) 2 to selectively control a plurality of devices.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the scope of the invention. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

1: Process control device 2: Optical communication slave module
10: remote controller rack 11: optical communication data module
14: Digital input card 15: Digital output card
16: Analog input card 17: Analog output card
20: Remote Expansion Input / Output Card

Claims (4)

Process control functions are distributed to multiple computers in the power plant electronic equipment room to improve reliability and minimize the ripple effect in case of an error. Process information processing and driving operation and management functions of distributed computers are performed by a centralized operator interface system (OIS) Operator Interface System)
In the Operator Interface System (OIS) described above, a network processing module (NPM: Network Processing Module) is connected through a network communication network using Information Communication Technology (ICT) and Network Interface Slave Module (NIS) Module, a multi-function processor module (MFP), and a process control unit (PCU)
I / O (Input / Output Unit) using Fiber Optic Communication Slave Module (FCSM) and Fiber Optic Communication Data Module (FCDM) Selectively controllable,
(FCDM) for communicating information from a remote extended input / output card (I / O) to a process control unit (PCU), which is a main unit, Data Module) allocates the virtual port set by the main device locally and controls the input / output of the distributed control system (DCS) using general optical communication technology composed of master and slave in case of communication failure. An output control card expansion device comprising:
In the above-mentioned remote controller rack,
And outputs the 0/1 logic information from the remote expansion input / output card (I / O) to the optical communication data module (FCDM) and outputs the optical communication slave module (FCSM) of the process control unit (PCU) (2), a digital input card (CARD)
A digital output card for outputting information received from an optical communication data module (FCDM) to a remote expansion input / output card (I / O) as an ON / OFF contact signal,
Analogue Digital Converter (ADC), which converts the analog values input from the remote expansion input / output card (I / O) to digital and sends them to the Fiber Optic Communication Data Module (FCDM) A card (Analog Input CARD)
An analog output card that outputs the information received from the Fiber Optic Communication Data Module (FCDM) to the remote expansion input / output card (I / O) with an analog value by incorporating a DAC (Digital to Analog Converter) Analog Output CARD). The input / output control card expansion device of the distributed control system (DCS) uses optical communication technology.
delete delete delete

Images