JP2000250617A - Simulation device and recording medium recording simulation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the simulation including a TCP/IP driver by transmitting a V net communication frame to a simulator or a V net via a V net adapter driver. SOLUTION: A V net adapter driver 26 eliminates a physical address from a V net communication frame and sends a TCP/IP communication packet to a TCP/IP driver 24. Otherwise, the driver 26 gives the V net communication frame to a V net. The driver 24 extracts the data from the TCP/IP communication packet and sends the data to an HIS.AP 10 via a socket IF 12. The HIS.AP 10 displays the data. Thus, the driver 26 can transmit the V net communication frame to a simulator 50 or the V net and accordingly can perform the simulation including the socket IF 12 and the driver 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
The present invention relates to a simulation device for a control station that performs communication using the P / IP protocol and a recording medium on which a simulation program is recorded.

[0002]

2. Description of the Related Art In recent years, general-purpose personal computers have been used as plant control devices, and Windows NT (a trademark of Microsoft Corporation in the United States and other countries) has been used as an operating system. .

[0003] Such a plant control device is shown and described in FIG. In the figure, a personal computer 1 is connected to a V net 2 which is a control network bus. The V-net is different from the Ethernet and consists of a duplicated communication path. Field Control Station (F
CS (abbreviated as CS) 3 is connected to the V net 2 and controls a plant (not shown).

A personal computer 1 is a human interface application (hereinafter abbreviated as HIS AP) 1
0, V net DLL (Dynamic Link Library) 11, V
A network protocol driver 21 and a V net adapter driver 22 are provided.

The HIS AP 10 performs human interface processing, for example, displaying an operation screen.
The V net DLL 11 is connected to the HIS AP 10 and
It communicates with the network protocol driver 21. The V net protocol driver 21 performs V net protocol processing. The V net adapter driver 22 communicates with the V net protocol driver 21 and controls a V net communication interface card (not shown) connected to the V net L.

[0006] FCS3 is a field control system.
It has a station application (abbreviated as FCS AP) 30 and a V net driver 41.

[0007] The FCS AP 30 is a V net driver 4
1 to control the plant. The V net driver 41 controls a V net communication interface (not shown) connected to the V net 2 and performs V net protocol processing.

The operation of such an apparatus will be described below.
The HIS AP 10 communicates with the V net protocol driver 21 via the V net DLL 11. The V-net protocol driver 21 converts the communication from the HIS / AP 10 into a V-net communication packet according to the V-net protocol and passes the packet to the V-net adapter driver 22. The V net adapter driver 22 adds the physical address of the V net and sends a V net communication frame on the V net 2.

The V net driver 41 receives the V net communication frame on the V net 2, performs V net protocol processing, and converts the V net communication frame into an FCS.
-Hand over to AP30. The FCS / AP 30 controls the FCS 3 based on the V net communication frame to control the plant.

[0010] The FCS AP 30 passes process data and the like from the plant to the V net driver 41. V
The net driver 41 converts the received data into a V net communication frame to which a physical address is added,
Pour over

The V net adapter driver 22
Receives the VNet communication frame on VNet2,
V net communication packet is transferred to V net protocol driver 2
Pass to 1. The V-net protocol driver 21 converts the V-net communication packet into communication data according to the V-net protocol, and transfers the communication data to the V-net DLL 11. HIS AP10
Receives communication data from the V net DLL 11 and performs display and the like based on the communication data.

FIG. 3 shows a case in which a simulation is performed by the above-described apparatus, and will be described. Here, the same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted.

In FIG. 1, a V-net communication interface service 23 is a pseudo-V-net, which is provided in the personal computer 1 and communicates with the V-net DLL 11.
Performs net protocol processing.

The simulator 50 includes a V net DLL 51
, And has an FCS AP 501 and a pseudo V-net driver 502. The V net DLL 51 communicates with the V net communication interface service 23. FCS ・
The AP 501 communicates with the pseudo V-net driver 502 with the same function as the FCS AP 30. The pseudo V net driver 502 communicates with the V net DLL 51 and
Performs net protocol processing.

The operation of such an apparatus will be described below.
The HIS AP 10 is connected to the V net DLL 11 via the V net DLL 11.
The communication with the network communication interface service 23 is performed. The V net communication interface service 23 is
The communication from the IS / AP 10 is converted into a V net communication frame according to the V net protocol, and the V net DLL 51
Pass to.

Then, the V net DLL 51 passes the V net communication frame to the pseudo V net driver 502.
The pseudo V-net driver 502 performs V-net protocol processing, and transmits the V-net communication frame to the FCS / AP 50
Pass to 1. The FCS / AP 501 operates the simulator 50 based on the V net communication frame.

The FCS / AP 501 also stores the process data and the like of the simulator 50 into the pseudo V net driver 50.
Hand over to 2. The pseudo V net driver 502 converts the received data into a V net communication frame, and
The data is passed to the V-net communication interface service 23 via the communication interface 51.

The V-net communication interface service 23 performs V-net protocol processing on the V-net communication frame to make communication data, and converts the V-net communication frame into V-net DLL 11
Pass to. The HIS AP 10 receives communication data from the V net DLL 11 and performs display and the like based on the communication data.

In the V net 2, TCP / IP (Inte
rnet Protocol Suit) communication has begun. Such an apparatus is shown and described in FIG. Here, the same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted.

In the figure, socket interface 1
2. The TCP / IP driver 24 and the V net adapter driver 25 are provided in the personal computer 1. The socket interface 12 connects to the HIS AP 10. TC
The P / IP driver 24 is a socket interface 1
2 and also communicates with the V net adapter driver 25 to perform TCP / IP protocol processing. The V net adapter driver 25 controls a V net communication interface card (not shown).

The socket interface 31, V net driver 42, and TCP / IP driver 43
Is provided. The socket interface 31 is an FC
It connects to the S-AP 30 and communicates with the TCP / IP driver 43. The V net driver 42 controls a V net communication interface (not shown) connected to the V net 2 and performs V net protocol processing. TCP /
The IP driver 43 communicates with the V net driver 42,
Performs TCP / IP protocol processing.

The operation of such an apparatus will be described below.
The HIS / AP 10 communicates with the TC via the socket IF 12
It communicates with the P / IP driver 24. The TCP / IP driver 24 transmits the communication from the HIS AP 10 to the TPC / I
P protocol processing is performed, and a TCP / IP communication packet is passed to the V net adapter driver 25. The V net adapter driver 25 adds the physical address of the V net and sends a V net communication frame on the V net 2.

The V net driver 42 receives the V net communication frame on the V net 2 and passes the communication frame to the TCP / IP driver according to the V net protocol. This communication frame is transmitted to the TCP / IP driver 4
3 performs TCP / IP protocol processing, and performs socket I
It passes to FCS / AP30 via F31. FCS ・ A
P30 controls FCS3 based on the communication frame to control the plant.

Further, the FCS / AP 30 transmits process data and the like from the plant to the T
It is passed to the CP / IP driver 43. The TCP / IP driver 43 performs TCP / IP protocol processing on the received data, and passes the data to the V net driver 42. The V net driver 42 makes the V net communication frame to which the physical address is added, and sends the frame to the V net 2.

Then, the V net adapter driver 25
Receives the VNet communication frame on VNet2,
The physical address is removed from the V net communication frame, and T
The packet is converted into a CP / IP communication packet and passed to the TCP / IP protocol driver 24. The TCP / IP protocol driver 24 performs TCP / IP protocol processing on the TCP / IP communication packet to convert it into communication data,
Pass to. The HIS AP 10 receives the communication data from the socket IF 12 and performs display or the like based on the communication data.

[0026]

As described above, the FCS3
A function for performing TCP / IP communication is mounted thereon, and TCP / IP communication can be performed from the personal computer 1 via the V net 2. Accordingly, a request for TCP / IP communication is required in the simulator 50. Have been.

However, the operating system of the personal computer 1 is provided with a function of performing TCP / IP communication as standard, and the socket IF 1 provided by this standard is provided.
2. The V-net communication interface service 23 cannot be used from the TCP / IP driver 24.

If a substitute for the socket IF 12 and the TCP / IP driver 23 is newly provided for simulation, the socket IF 12 and the TCP / IP driver 2
There is a problem that the simulation cannot be performed due to the third factor.

Therefore, an object of the present invention is to realize a simulation device that can perform simulation by TCP / IP communication while using the current system.

[0030]

SUMMARY OF THE INVENTION The present invention relates to a control station simulation apparatus for communicating a control net with a TCP / IP protocol using a human interface application for performing human interface processing, and a human interface application. Communicates with interface application, TCP
A TCP / IP protocol driver that performs / IP protocol processing, a simulator that simulates the control station, a control net protocol driver that communicates with the simulator and performs control net protocol processing, A control network adapter driver for communicating with the TCP / IP protocol driver and transmitting and receiving to and from the control network is provided.

In the present invention, the human interface application communicates with the TCP / IP driver. TCP / IP driver is TCP / IP
It performs IP protocol processing and communicates with the control network adapter driver. The control net adapter driver communicates with the TCP / IP protocol driver and the control net protocol driver, and transmits and receives with the control net. Then, the control net protocol driver performs control net protocol processing and communicates with the simulator.

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of the present invention. Here, the same components as those in FIGS. 2 to 4 are denoted by the same reference numerals, and description thereof is omitted.

In the figure, V net adapter driver 2
6. TCP / IP loopback process 60, V net DLL
61 is provided in the personal computer 1. The V net adapter driver 26 includes the V net protocol driver 21 and T
It communicates with the CP / IP driver 24 and controls a V-net interface card (not shown). TCP / I
The P return process 60 connects the V net DLL 61 and returns data. The V net DLL 61 communicates with the V net protocol driver 21 and the V net communication interface service 23.

The socket IF 503, the TCP / IP driver 504, and the pseudo V net driver 505 are provided in the simulator 50. Socket I / F 503 is FCS
-Connect to the AP 501 and communicate with the TCP / IP driver 504. The TCP / IP driver 504 is a TCP / IP driver.
Performs the IP protocol processing and executes the pseudo V net driver 50.
5 is communicated. The pseudo V net driver 505 communicates with the V net DLL 51 and performs V net protocol processing.

The operation of such a device will be described below.
The HIS / AP 10 communicates with the TC via the socket IF 12
It communicates with the P / IP driver 24. The TCP / IP driver 24 performs TCP / IP protocol processing, and
P / IP communication packet to V net adapter driver 26
Pass to. When the personal computer 1 is connected to the Ethernet, the TCP / IP driver 24 transmits
The P address identifies Ethernet or V net, and in the case of V net, the V net adapter driver 26
Is passed a TCP / IP communication packet.

Then, the V net adapter driver 26
Holds the physical address of the V net to be passed when the simulator 50 is started, and determines whether to transmit the TCP / IP communication packet from the transmission destination to the FCS on the V net or to pass it to the V net protocol driver 21 I do. Then, V net protocol processing is performed, and V net or V net
The V net communication frame is transmitted to the net protocol driver 21. If the TCP / IP communication packet is a broadcast packet, it is transmitted on the V net and passed to the V net protocol driver 21.

The V-net protocol driver 21 performs V-net protocol processing, and converts a V-net communication frame into
The data is passed to the TCP / IP loopback process 60 via the V net DLL 61. The TCP / IP loopback process 60 includes:
The V net communication frame is passed to the V net communication interface service 23 via the V net DLL 61. The V net communication interface service 23
The V net communication frame is passed to the V net DLL 51 based on the physical address of the net communication frame.

Then, the V net DLL 51 passes the V net communication frame to the pseudo V net driver 505.
The pseudo V net driver 505 performs V net protocol processing and passes the V net communication frame to the TCP / IP driver 54. The TCP / IP driver 504 uses TCP
/ IP protocol processing and passes the result to the FCS / AP 501 via the socket IF 503. FCS ・ AP501
Is a simulator 5 based on a Vnet communication frame.
Operate 0.

The FCS / AP 501 also transmits the process data and the like of the simulator 50 to the TCP / IP driver 50.
Pass to 4. The TCP / IP driver 504 is a TCP / I
P-protocol processing is performed, and the TCP / IP communication packet is passed to the pseudo V net driver 505. The pseudo V-net driver 505 converts the received data into a V-net communication frame and passes it to the V-net communication interface service 23 via the V-net DLL 51.

The V net communication interface service 23 converts the V net communication frame into a V net DLL 6 based on the physical address of the V net communication frame.
1 to the TCP / IP loopback process 60.
The TCP / IP loopback process 60 uses the V net DLL6
The V-Net communication frame is passed to the V-Net protocol driver 21 via the communication network 1. The V-net protocol driver 21 performs V-net protocol processing and passes the V-net communication frame to the V-net adapter driver 26.

The V net adapter driver 26 removes the physical address from the V net communication frame,
The TCP / IP communication packet is passed to the IP driver 24.
Alternatively, the V net adapter driver 26 sends the V net communication frame to the V net. TCP / IP driver 2
4 extracts data from the TCP / IP communication packet, and passes the data to the HIS AP 10 via the socket IF 12. The HIS AP 10 performs display and the like based on the data.

As described above, the V net adapter driver 2
6 can transmit the V net communication frame to the simulator 50 or the V net.
A simulation including the / IP driver 24 can be performed. Further, the same IP address as the actual device FCS can be assigned to the simulator 50, and the HIS AP 10 does not need to be aware of the actual device FCS and the simulator 50 at all. Then, utility commands such as ping can be executed on the simulator 50.

The TCP / IP loopback process 60 sends a V net communication frame to the V net communication interface service 23 which is a pseudo V net. Since the V net communication frame is transferred, simulation can be performed by the plurality of simulators 50. Further, the V-net communication interface service 23 enables a simulation to coexist with a conventional V-net communication simulation environment.

The present invention is not limited to this, but may be as follows. Although the configuration in which the V net communication interface service 23 and the TCP / IP loopback process 60 are provided is shown, a plurality of simulators 5
If 0 is not operated, the V net protocol driver 21 may pass the V net communication frame directly to the V net DLL 51.

HIS AP10, socket IF1
2, V net protocol driver 21, V net communication interface service 23, TCP / IP driver 2
4, V net adapter driver 26, simulator 5
The V net DLL 51, the TCP / IP loopback process 60, and the V net DLL 61 are usually recorded on a recording medium (compact disk, floppy disk, or the like) and are installed in the personal computer 1.

[0046]

According to the present invention, the following effects can be obtained. According to the first, third, fourth, and sixth aspects, the V net adapter driver can transmit the V net communication frame to the simulator or the V net, so that a simulation including the TCP / IP driver can be performed. Also, the same IP address as the actual device FCS can be assigned to the simulator, and the human interface application does not need to be conscious of the actual device FCS and the simulator. Then, utility commands such as ping can also be executed for the simulator.

According to the second, third, fifth and sixth aspects, TCP /
According to the IP loopback process, the control net communication frame is sent to the control net communication interface which is a pseudo control net, and the control net communication interface service passes the control net communication frame based on the physical address of the control net communication frame. Can be simulated. Further, the control network communication interface service enables simulation to coexist with a conventional control network communication simulation environment.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a configuration diagram showing a conventional plant control device.

FIG. 3 is a configuration diagram showing a simulation device of the device shown in FIG. 2;

FIG. 4 is a configuration diagram showing another conventional plant control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Human interface application 21 V net protocol driver 23 V net communication interface service 24 TCP / IP driver 26 V net adapter driver 50 Simulator 60 TCP / IP loopback process 501 Field control station application 504 TCP / IP driver 505 pseudo V net driver

Claims (6)

[Claims] An apparatus for simulating a control station for communicating a control network by a TCP / IP protocol, comprising: a human interface for performing a human interface process;
An interface application and a TC that communicates with the human interface application and performs TCP / IP protocol processing
A P / IP protocol driver, a simulator for simulating the control station, a control net protocol driver for communicating with the simulator and performing control net protocol processing, a control net protocol driver and the TCP / I
A simulation apparatus comprising: a control net adapter driver that communicates with a P protocol driver and transmits and receives a control net. 2. A TCP / IP loopback process for communicating with a control net protocol driver, and a control net communication interface service for communicating with the TCP / IP loopback process and the simulator and serving as a pseudo control net are provided. The simulation device according to claim 1, wherein 3. A simulator comprising: a control station application for controlling a control station; and a TCP for communicating with the control station application and performing TCP / IP protocol processing.
/ IP driver, and a pseudo control net driver that communicates with the TCP / IP driver, communicates with a control network communication interface service or a control net protocol driver, and performs control net protocol processing. Item 3. The simulation device according to item 1 or 2. 4. A recording medium for recording a simulation program of a control station for communicating with a control network by a TCP / IP protocol, the recording medium comprising a human interface for performing a human interface process.
An interface application and a TC that communicates with the human interface application and performs TCP / IP protocol processing
A P / IP protocol driver, a simulator for simulating the control station, and communicating with the simulator,
A control net protocol driver for performing control net protocol processing, the control net protocol driver and the TCP / I
A recording medium for recording a simulation program, comprising: a control net adapter driver for communicating with a P protocol driver and for transmitting and receiving to and from a control net. 5. A TCP / IP loopback process for communicating with a control net protocol driver, and a control net communication interface service for communicating with the TCP / IP loopback process and a simulator and serving as a pseudo control net are provided. A recording medium for recording the simulation program according to claim 4. 6. A simulator comprising: a control station application for controlling a control station; and a TCP for communicating with the control station application and performing TCP / IP protocol processing.
/ IP driver, and a pseudo control net driver that communicates with the TCP / IP driver, communicates with a control net communication interface service or a control net protocol driver, and performs control net protocol processing. A recording medium on which the simulation program according to item 4 or 5 is recorded.