KR20130125491A - System and method using realtime simulator and programmed system switching for the validation of large-scaled dcs - Google Patents

Abstract

The present invention relates to a large scale DSC inspection device using a real-time simulator and system switching, and an inspection device thereof. According to the present invention, an Sim node part performs the system switching process of a simulated DCS(11) and an auto-comparator function. According to the present invention, the inspection of a large scale DSC is easily performed.

Description

Large-scale DCS verification system using real-time simulator and system switching and its verification method {SYSTEM AND METHOD USING REALTIME SIMULATOR AND PROGRAMMED SYSTEM SWITCHING FOR THE VALIDATION OF LARGE-SCALED DCS}

The present invention relates to a large-scale DCS verification apparatus using a real-time simulator and system switching and a verification method thereof. More specifically, a program switching technique and an automatic comparison of control result values using a software control model previously verified in a real-time simulator ( The present invention relates to a technology for performing health verification of large scale distributed control systems by applying auto-comparators to nuclear power plants or thermal power plants.

In the conventional DCS (Distributed Control Systems) verification system, it is common to verify the DCS control system and the performance integrity of the DCS by generating and linking the power plant process system modeling associated with the DCS.

In this case, as the number of control systems constituting the DCS increases, it means that not only the system lines themselves are verified but also the number of linked process system models that must be provided for the whole system verification.

For example, it is common practice for DCS with A and B control systems to independently perform A system verification and B system verification, followed by A + B system integration verification. There are three process diagrams that correspond to three verifications: A-system verification, B-system verification, and A + B-system integration.

That is, as the number of control systems to be verified in the DCS to be verified increases, the number of process modeling to be provided also increases, which means that there is a problem that the time required for verification increases geometrically.

In addition, when analyzing the result of control operation for verifying individual control system and the whole control system, the soundness verification of the control system is verified by manually comparing the result obtained by testing the accident scenario prepared in advance with the control result obtained in advance off-line. I have taken a way to do it. This means that the comparative analysis must be performed manually for each comparison verification, which causes a lot of inconvenience.

The present invention has been made to solve the above problems, using a full range real-time simulator for training, by applying a programmatic switching technique and control results auto-Comparator for each control system, It is an object of the present invention to provide an apparatus and method that can reliably and easily perform verification of each control system and verification of an entire control system including a plurality of control systems for DCS verification.

The large-scale DCS verification apparatus using the real-time simulator and system switching of the present invention for achieving this technical problem, while driving the simulator process modeling unit 201 of the power plant to be applied DCS, the system switching operation of the simulated DCS (11) to be verified And a simulation computer node unit (Sim node unit) 1 which performs an Auto-Comparator function; An Instructor Station 6 for performing a System Switching selection operation of which control system is connected to a DCS system or a simulator control system; Stimulated DCS (11) for nuclear power and thermal power generation to be verified; A master node side I / O Process node 9; A DCS side I / O Process node 10 for input / output of the DCS system side; And a master node unit 7 for managing the master node side I / O process node 9 and the DCS side I / O process node 10.

In addition, the large-scale DCS verification method using the real-time simulator and the system switching of the present invention based on the device as described above, the system switcher (3) performing a switching system categorizer function (310); (B) the system switcher 3 performing a mapping table parser function 311 analyzing the system switching mapping table 323; (C) performing a System Switching Database Builder function 312 in which the System Switcher 3 extracts information of each control variable based on the System Switching Mapping Table 323 and inputs information into the VarLink structure 327. ; The System Switcher (3) performs a System Switching Periodic Checker function (313) which periodically checks whether the system switching option change per system has occurred in the Instructor Station (6) to determine whether SysSW.nForced == 1 d) step; And (d), when SysSW.nForced == 1, the System Switcher 3 performs System Switching to match the switching direction (dir) in which the option change is made in the Instructor Station (6) (e). ) Step;

According to the present invention as described above, for the large-scale nuclear power plant or thermal power DCS verification, the process models are prepared for each control system for verification of the control system, another process model for the combination of those control systems or the test of the entire control system System Switching in one integrated process model for individual or full control system validation, using process and control models from a full-range simulator for training that simulates the plant, avoiding traditional inefficient approaches to By doing so, system switching from the software control system to the DCS control system can be selected for each system, thereby facilitating verification of large-scale DCS.

In addition, according to the present invention, it is possible to automatically compare the control result of the DCS control system and the control system result implemented by software of the existing simulator in one integrated simulator system, thereby performing reliable automatic verification of the DCS control system. can do.

1 is a block diagram showing a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
Figure 2 is a control system signal flow diagram when not switching the control system A of the large-scale DCS verification apparatus using a real-time simulator and system switching in accordance with the present invention.
3 is a control system signal flow diagram when the control system A of the large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention when the system switching to DCS.
4 is a system switcher startup flowchart of a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
5 is an exemplary diagram of a switching system input file of a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
6 is a view showing a structure related to Switching System Categorizer of a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
7 is a diagram illustrating a System Switching Mapping Table of a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
8 is a diagram illustrating a structure related to a System Switching Database Builder of a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
Figure 9 is a signal flow diagram when the System Switching / Emulated Switching of a large-scale DCS verification apparatus using a real-time simulator and system switching in accordance with the present invention.
10 is an exemplary source diagram of DoSystemSwitching and DoEmulatedSwitching function implementation of a large-scale DCS verification apparatus using a real-time simulator and system switching according to the present invention.
11 is a flowchart illustrating a large-scale DCS verification method using a real-time simulator and system switching according to the present invention.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

As shown in FIG. 1 and FIG. 2, the large-scale DCS verification apparatus A using the real-time simulator and the system switching according to the present invention drives the simulator process modeling unit 201 of a power plant to which DCS is applied, but is a verification target Stimulated DCS. Instructor that performs system switching selection to connect the simulation computer node part (Sim node part) (1) which performs system switching and auto-comparator function of (11) and control system of DCS system or simulator control system. Station unit 6, Stimulated DCS 11 for nuclear power and thermal power generation to be verified, Master node side I / O Process node 9, and DCS side I / O Process node for input / output of DCS system side ( 10) and a master node side 7 for managing the master node side I / O process node 9 and the DCS side I / O process node 10.

Specifically, the Sim node unit 1 is a software model (simulation model) simulating a power plant and a node in which each control algorithm exists, and a system switcher 3 and a control system for selecting an input among a simulator control system or a DCS control system. It consists of an Auto-Comparator (4) that compares the results automatically. It is connected to the fieldbus real-time communication network to input / output to the I / O panel, and the other is connected to the simulation data network to the Instructor Staion (6) Connected.

Further, the Instructor Station section 6 is a signal coming from either the simulator control system signal 301 implemented in software in the Sim node unit 1 or the external DCS control system signal 302 (per system) to be verified. Make user decisions about System Switching.

In addition, the master node 7 is a node that manages the communication between the input / output processing nodes 9 and 10 and the Sim node 1 and serves as a kind of bus arbiter for controlling the right of use of the fieldbus transmission medium. In addition, various parameters can be adjusted for the operation management of the communication network, file transmission / reception for each node, and remote rebooting for the input / output processing node can be performed.

In addition, the master node side I / O process node 9 and the DCS side I / O process node 10 are nodes in charge (collection, processing, input / output processing) of DCS I / O point data. It applies status information to communication network, receives modeling results from simulation computer from communication network, processes control input or indication value of DCS as input, and is composed of any one of CPU card, Expansion Chassis, I / O card or network card. .

In addition, the Stimulated DCS 11 refers to an actual DCS system to be verified, and is composed of a Stimulated DCS 11 that is entirely identical to a DCS to be applied to an actual power plant.

In addition, Sim node unit (1) is again a full range real-time power plant modeling server (hereinafter referred to as 'simulator server') (2), System Switcher (3) for implementing the system switching function, software control system results and DCS control system results It consists of an Auto-Comparator (4) and a communication unit (5) which automatically compares and analyzes.

In addition, as shown in FIG. 2, the simulator server 2 includes a simulator process modeling unit 201 and a simulator control system modeling unit 202, and the simulator control system modeling unit 202 is configured in a simulator. Performing the same function as the full-scale simulator control model for training already proved soundness, the simulator process modeling unit 201 is configured to enable the switching input for each system of the entire input signal of the external DCS control system.

That is, the control system associated with the simulator process modeling unit 201 switches switching (or emulated switching) 304 for each system from the simulator control system modeling unit 202 to the external verification target DCS control modeling unit 801. By changing the original dynamic process program of the simulator associated with all control systems of the Stimulated DCS 11 to be verified, the control system (or system combination) from the simulator control system to the DCS control system (or vice versa). It works so that it can be switched.

Hereinafter, the detailed description will be omitted, but the switching from the simulator control system input signal 306 to the DCS control system input signal 303 is referred to as System Switching , and the simulator control system input signal (303) from the DCS control system input signal 303. Switching to 306 is called Emulated Switching .

In addition, the system switcher 3 is a Stimulated DCS 11 to verify whether or not the simulator process modeling unit 201 receives the simulator control system input signal 306 of the simulator control system modeling unit 202 by the operator's selection. Select whether to receive the DCS control system input signal 303 for each system, and corresponds to a part (see FIGS. 9 and 10) to implement this programmatically.

That is, in FIG. 10, in the source of the simulator process program, the process model variable (Ref_Model_Varname, 324) associated with the control system is changed to a reference type variable of the C language, and according to the switching selection of the control system (that is, the corresponding system variable). 330, 331), the simulator control system variable (Emulated_Varname, 325) to be associated with (see DoEmulatedSwitching function 341 in FIG. 10), or the control system variable (DCS_Varname, 326) (see DoSystemSwitching function 340 of FIG. 10) is used to programmatically specify.

Specifically, the concept of system switching and emulated switching will be described with reference to FIGS. 2 and 3.

First, assuming that there are three (A, B, C) systems in charge of the DCS to be verified, one of the three A systems uses the simulator control system input signal 306 that is mounted on the simulator and is running. It is assumed that the B and C systems want to derive the DCS control system input signal 303 output from the DCS.

FIG. 2 is a diagram illustrating a signal flow when the Instructor Station unit (Instructor Control Panel) 6 wants to connect the simulator control system output value 305 to the A system.

As shown in FIG. 2, the main result of the simulator process modeling unit 201 of the simulator server 2 is input 203 back to the simulator control system modeling unit 202, and the simulator control system modeling unit 202 of the simulator control system modeling unit 202. The simulator control system input signal 306 is again input to the simulator process modeling unit 201.

At this time, the main result of the simulator process modeling unit 201 of the simulator server 2 is also used as the input of the simulator control system output value 305, which is the simulator control system modeling unit at the time when the Stimulated DCS (11) System Switching This is to follow-up the control function in order to transfer the control function of 202 as it is.

In addition, the result value 204 of the main variables of the simulator process modeling unit 201 is stored for each time zone as the 'software control result storage space 401' of the Auto-Comparator. (This will be the result of the software control system and the DCS control system. It is used for comparative analysis of Auto-Comparator (567) which automatically compares and analyzes the result.)

On the other hand, Figure 3 is a diagram showing the signal flow when the Instructor Station unit (Instructor operation panel) 6 wants to connect the Stimulated DCS (11) control logic as the external verification target for the A system.

As shown in FIG. 3, the DCS control system input signal 303 output from the Stimulated DCS 11, which is an external verification target, is input to the simulator process modeling unit 201 of the simulator server 2. At this time, the main result of the simulator process modeling unit 201 is that the simulator control system output value 305 is input again, and the DCS control system input signal 303 generated as a result of the DCS control system performing the control function is again simulated. It has a circular structure input to the process modeling unit 201.

In addition, the main result of the simulator process modeling unit 201 of the simulator server 2 is also used as an input 203 of the simulator control logic (Emulated Control System), which is the simulator control system modeling unit 202 is the Emulated Switching This is to follow-up the control function in order to take over the control function of the Stimulated DCS (11) control model at this point.

In addition, the result value 205 of the main variable of the simulator process modeling unit 201 is stored for each time zone as the 'DCS control result storage space 402' of the Auto-Comparator 4.

When the value of the 'software control result storage space 401' and the corresponding time zone value of the 'DCS control result storage space 402' exist, the Auto-Comparator 4 controls the software control result value and the DCS control. The result comparison 403 and analysis are performed to provide a user with various data such as a graph or a value difference, so that the control capability of the Stimulated DCS 11 can be compared with the simulator control system modeling unit 202.

That is, in the case of switching only the limit system among the A system, B system, and C system in FIGS. 2 and 3, the verification of the individual control system is performed, and when the A + B + C system is switched to the DCS equipment input, DCS will be verified. In this way, only one simulator process modeling can provide logic to verify the individual DCS control systems, or to verify the entire control system.

Hereinafter, referring to FIG. 4 to FIG. 10, the starting procedure for the System Switcher 3 of the large-scale DCS verification apparatus using the real-time simulator and the system switching according to the present invention will be described below.

step 1) When the System Switcher 3 is activated, the Switching System Categorizer function 310 is first performed. That is, in the Switching System.inp file 320 as shown in FIG. 5, the type and information of the system to be switched are analyzed and filled in the SysSW structure 321.

Referring to FIG. 6, each field of the SysSW structure 321 is described below.

 -int nForced: Flag indicating that there is a change in the System Switching option (If the flag value is "1", it means that there is a grid that the user wants to change the switching in the current switching state. Means you don't want it.)

 SysInfo structure 322: Structure that corresponds 1: 1 with the line of each line of Switching System.inp file 320

   * SysInfo [n] .dir: System Switching direction designation flag for the corresponding n-th system (“0” value means the input of the simulator control system signal 301 by selecting the simulator control system input signal 306, A value of "1" means the input of the DCS control system signal 302 by selecting a signal of the external stimulated DCS 11 to be verified.)

* SysInfo [n] .SysName: Line name for the corresponding n-th line

step 2) Next, a mapping table parser function 311 analyzing the system switching mapping table 323 is performed. That is, the System Switching Mapping Table 323 is a mapping of the model control variable (Ref_Model_Varname, 324) that should be received in the simulator process model 201 and the control variables 325, 326 to be associated with it (simulator or external test subject DCS). Table is shown and the meaning of each column is as shown in FIG.

NO: serial number

Description: A string that describes the physical meaning of the System Switching variable on the line.

-Type: Type of System Switching (AI = Analob Input, AO = Analog Output, DI = Digital Input, DO = Digital Output)

Here, AO / DO is not a system switching target.

That is, no system switching is performed on the simulator outputs 203 and 305. The outputs 203 and 305 of the simulators are usually calculated results of fluid or physical properties for control, and these values are used for controlling the control panel. As the basic data, both the external verification target Stimulated DCS (11) or the internal simulator control logic (202) can receive correct output only when these output values are input.

Ref_Model_Varname 324: Model variable to be received from the simulator process model 201, which must be defined as a reference variable in C language, but with a simulator control signal variable (Emulation_Varname, 325) or a DCS control signal variable (DCS_Varname, 326). System Switching is possible.

-Emulation_Varname (325): the corresponding variable of the control model 202 implemented in software mounted on the simulator server

-DCS_Varname (326): the corresponding control variable of externally verified Stimulated DCS (11)

-SysID: Name of the grid to which the control variable belongs

Step 3) Next, a System Switching Database Builder function 312 is performed to extract information of each control variable based on the System Switching Mapping Table 323 and input the information into the VarLink structure 327.

Each field description of the VarLink structure 327 is as shown in FIG.

-SSW_ELEMENT structure 328: A structure in which variables belonging to one line of the mapping table 323 are parameter information necessary for system switching, and the description of each field is as shown in FIG .

* SysName: System name to which variables belonging to one line of Mapping Table (323) belong

* RefVar: Structure containing the information of the System Switching Mapping Table 323, Ref_Model_Varname variable 324 (RefVar.VarName == variable name, RefVar.addr: address value where the variable is located in the simulator server program)

* LObjVar: Structure containing information of the Emulation_Varname variable 325 of the System Switching Mapping Table 323 (LObjVar.VarName == variable name, LObjVar.addr: address value where the variable is located in the simulator server program)

* SSWVar: Structure containing the information of the DCS_Varname variable 326 of the System Switching Mapping Table 323 (SSWVar.VarName == variable name, SSWVar.addr: address value where the variable is located in the simulator server program)

[note] VarInfo structure (329): Structure indicating the variable name and address registered in the simulator.

next: Specifies the address of the next SSW_ELEMENT structure (328).

step 4) Instructor Station (Instructor Control Panel) (6) performs a System Switching Periodic Checker function (313) to periodically check whether the system switching option changes by system.

In other words, if SysSW.nForced value is 1, it means that the System Switching option has changed, so go to Step 5 below, which is responsible for switching behavior for each switched System (SysInfo [n]) system.

step 5) If in step 4 SysSW.nForced == 1, the actual instructor causes the system switching to match the desired switching direction (dir), where all variables of the system (dir == 1) for which switching is desired The DoSystemSwitching function 340 is called, and the system variables that do not want System Switching will call the DoEmulatedSwitching function 341. An implementation example of the DoSystemSwitching function 340 and the DoEmulatedSwitching function 341 is shown in FIG. 10.

Meanwhile, as shown in FIGS. 2 and 3, the auto-comparator 4 firstly connects the simulator process modeling unit 201 and the simulator control system modeling unit 202 to the instructor station (instructor operation panel) 6. By selecting Emulated Switching and executing pre-selected accident scenarios, the values 204 for important process variables are first stored in the 'software control result storage space 401' by time, and the Stimulated DCS (11) System control is performed in the Instructor Station (Instructor Control Panel) 6, and the important process variable values 205 obtained by reproducing the above scenario are stored in the 'DCS control result storage space 402'. At the same time, by automatically comparing the time zone values stored in the 'software control result storage space 401' and outputting various result analysis data such as maximum error and minimum error, Verification of reliability of DCS control system can be done automatically.

In addition to verifying the external Stimulated DCS 11 to be verified in the above manner, the control system can be individually verified, and the DCS verification can be performed not only by the system switching technique that can verify the combination or the whole control system. Auto-Comparator (4) provides a lot of ease in the reliability analysis of the Stimulated DCS (11).

Hereinafter, a large scale DCS verification method using a real-time simulator and system switching according to the present invention will be described with reference to FIG. 11.

First, the System Switcher 3 performs a switching system categorizer function 310 (S10).

Subsequently, the system switcher 3 performs a mapping table parser function 311 analyzing the system switching mapping table 323 (S20).

Subsequently, the System Switcher 3 extracts the information of each control variable based on the System Switching Mapping Table 323 and performs a System Switching Database Builder function 312 that inputs information to the VarLink structure 327 (S30). .

Subsequently, the System Switcher 3 performs the System Switching Periodic Checker function 313 which periodically checks whether the system switching option change per system has occurred in the Instructor Station unit 6 to determine whether SysSW.nForced == 1 (S40).

As a result of the determination in step S40, when SysSW.nForced == 1, the system switcher 3 performs system switching so as to correspond to the switching direction dir where the option change is actually made in the instructor station unit 6 (S50). ).

At this time, all variables of the system (dir == 1) that wants to switch is called by the DoSystemSwitching function 340, and variables of the system that do not want to be switched by the system are called the DoEmulatedSwitching function (341).

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

1: Simulation computer node section (Sim node section)
2: Full range real time power plant modeling server (simulator server)
3: system switcher
4: Auto-Comparator
5:
6: Instructor Station (Instructor Control Panel)
7: Master Node
8: IO Manager
9: Master node side I / O Process node
10: DCS side I / O Process node
11: Stimulated DCS
201: simulator process modeling unit
202: simulator control system modeling unit
203: Simulator control system input
204, 205: Result signal for the main variables of the simulator process modeling unit
301: simulator control system signal
302: Stimulated DCS control system signal
303: Stimulated DCS control system input signal
304: grid-specific switching
305: simulator control system output value
306: input signal of the simulator control system
310: Switching System Categorizer feature
311: Mapping Table Parser Function
312: System Switching Database Builder Features
313: System Switching Periodic Checker feature
314: Function to perform when SysSW.nForced == 1
315: Result of function performed when SysSW.nForced == 1
316: Function to perform if SysSW.nForced == 1
320: Switching System.inp file
321: SysSW structure
322: SysInfo Structure
323: System Switching Mapping Table
324: model control variable
325, 326: Stimulated DCS control variable for simulator or external calibration target
327: VarLink Structure
328: SSW_ELEMENT structure
329: VarInfo structure
330, 331: value of dir field of a grid variable
340: DoSystemSwitching function
341: DoEmulatedSwitching function
401: software control result storage space
402: DCS control result storage space
403: software control result and DCS control result

Claims (8)

Drive the simulator process modeling unit 201 of the power plant that is the DCS application,
A simulation computer node unit (Sim node unit) 1 which performs a system switching operation and an auto-comparator function of the simulated DCS 11 to be verified;
An Instructor Station 6 for performing a System Switching selection operation of which control system is connected to a DCS system or a simulator control system;
Stimulated DCS (11) for nuclear power and thermal power generation to be verified;
A master node side I / O Process node 9;
A DCS side I / O Process node 10 for input / output of the DCS system side; And
A real time simulator and system switching, comprising: a master node unit 7 for managing the master node side I / O process node 9 and the DCS side I / O process node 10. Large scale DCS implementation using The method of claim 1,
The Sim node unit 1,
A software model (simulation model) simulating a power plant and a node in which each control algorithm exists, a system switcher (3) for selecting an input among a simulator control system or a DCS control system; And
Auto-Comparator (4) which automatically compares and analyzes software control system results and DCS control system results, which is connected to the fieldbus real-time network and inputs and outputs to the I / O panel, and the other side is a simulation data network. Large scale DCS implementation using real-time simulator and system switching, characterized in that configured to be connected to the Instructor Staion unit (6) connected to. The method of claim 1,
The Instructor Station section 6,
System Switching is performed to connect a signal applied from a simulator control system signal 301 implemented in the Sim node unit 1 or an external DCS control system signal 302 to be verified. Large-scale DCS implementation using real-time simulator and system switching, characterized in that. The method of claim 1,
The master node side I / O Process node 9 and the DCS side I / O Process node 10,
It is a node in charge of (collecting, processing, input / output processing) of DCS I / O points, and applies control variables and state information of DCS to communication network, and receives modeling results from simulation computer from communication network, An apparatus for implementing a large-scale DCS using a real-time simulator and system switching, which processes an indication value as an input and comprises one of a CPU card, an expansion chassis, an I / O card, or a network card. The method of claim 1,
The Sim node unit 1,
It comprises a simulator process modeling unit 201 and a simulator control system modeling unit 202,
The simulator control system modeling unit 202 performs the same function as the full-scale simulator control model for training that has already been proved soundness in the simulator, and the simulator process modeling unit 201 classifies the entire input signal of the external DCS control system for each system. Simulator server for providing a switching input (2); large-scale DCS implementation using real-time simulator and system switching further comprising. The method of claim 1,
The system switcher (3),
The DCS control system input signal 303 of the Stimulated DCS 11 to be verified or verified by the simulator process modeling unit 201 by the operator's selection of the simulator control system input unit 306 of the simulator control system modeling unit 202. Large scale DCS implementation using a real-time simulator and system switching, characterized in that to perform a function to select whether or not to receive). 3. The method of claim 2,
The Auto-Comparator 4,
In order to connect the simulator process modeling unit 201 and the simulator control system modeling unit 202, Emulated Switching is selected through the Instructor Station unit 6, and a predetermined accident scenario is performed to the process variables derived by time. For the software control result storage space 401,
System switching of the control system of the Stimulated DCS 11 to be verified through the Instructor Station 6 to perform the above scenario again, and the resulting process variable values 205 are stored in the DCS control result storage space 402. Large-scale DCS using a simulator and system switching, characterized in that for storing and automatically comparing the time-phase values stored in the software control result storage space 401, and outputting the result analysis data including the maximum error and the minimum error. Implementation device. In the large scale DCS implementation using the simulator and system switching,
(a) the System Switcher 3 performing the Switching System Categorizer function 310;
(b) the System Switcher 3 performing a Mapping Table Parser function 311 analyzing the System Switching Mapping Table 323;
(c) the System Switcher 3 performing a System Switching Database Builder function 312 that extracts information of each control variable based on the System Switching Mapping Table 323 and inputs the information into the VarLink structure 327. ;
(d) The System Switcher (3) performs the System Switching Periodic Checker function (313), which periodically checks whether the system-switching option change by system in the Instructor Station (6) has occurred, and checks whether SysSW.nForced == 1 Determining; And
(e) As a result of the determination of step (d), when SysSW.nForced == 1, the System Switcher 3 performs System Switching to match the switching direction (dir) in which the option change is made in the Instructor Station 6 Large-scale DCS implementation method using a simulator and system switching comprising a.

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