JP2003030271A - Method for outputting circuit diagram connection information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent correction omission of a symbol library in updating symbol library information on circuit diagram data. SOLUTION: A library preparing means 1 prepares a symbol library of a logical circuit. The symbol library 2 stores the latest symbol library information 32. A circuit diagram inputting means 3 outputs circuit diagram data 43. A circuit diagram data storing means 4 stores the circuit diagram data 43 and outputs circuit diagram data 39, symbol terminal information 19, and symbol ID 20. A symbol acquiring means 8 sequentially acquire the symbol IDs 20 and outputs a symbol ID 21, a symbol ID 30 and an update control signal 41. A symbol terminal information A acquiring means 5 inputs the symbol terminal information 19 and the symbol ID 21 and outputs terminal information 22. A terminal information A storing means 6 inputs the terminal information 22 and outputs terminal information 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit diagram connection information output system, and more particularly to a circuit diagram connection information output system for outputting circuit diagram connection information (netlist) reflecting the latest information of a symbol library from circuit diagram data.

[0002]

2. Description of the Related Art Generally, circuit diagram data and symbol library association used in CAD can be roughly classified into two types. One is a method of always referring to the latest symbol library information to configure circuit diagram data. In this case, when the symbol library referred to by the circuit diagram data is corrected, the correction information is instantly reflected in the circuit diagram data.

The other is a method of incorporating the symbol library information into the circuit diagram data itself. in this case,
Even if the symbol library is modified, the symbol library information of the circuit diagram data is retained, and the symbol information on the circuit diagram data is updated before it is replaced with the latest symbol information.

The present invention relates to the latter circuit diagram data, and outputs circuit diagram connection information (netlist) reflecting the latest information of the symbol library from the circuit diagram data.

The symbol library includes attributes (physical shapes, component names, electrical characteristics, etc.) related to graphic elements and parts displayed on a circuit diagram and attributes related to terminals (terminal numbers,
(Terminal name, input / output, etc.) is held and used when outputting a netlist which is circuit diagram connection information.

The netlist is used in the printed circuit board design and includes a part of the printed circuit board design library information (physical shape number etc.) used in the printed circuit board design.

Conventionally, when outputting a netlist which is connection information from circuit diagram data, the symbol information in the circuit diagram data is updated as it is and the updated circuit diagram data is used to output the netlist. Updating the symbol information is important to generate the circuit diagram connection information using the latest library information.

When the symbol library is modified, especially when the terminal number is changed or the terminal position as a symbol graphic element is modified, the circuit connection is made before and after the symbol information of the circuit diagram data is updated. The relationship is likely to change.

Conventionally, in order to prevent the circuit connection relationship from changing, the circuit designer obtains the symbol library correction information and corrects the circuit diagram data based on the correction information.

As an example of such a technique, Japanese Patent Laid-Open No. 7-
A "symbol changing device in a CAD drawing" described in 192028 is known.

In this publication, a symbol correspondence table that defines the correspondence between the symbols before and after the change is created, and by referring to this table, the symbol after the change is selected from the symbol library to determine whether the attribute information is consistent. If the consistency of the attribute information is confirmed, the contact information on the symbol side is changed according to the contact information of the logic element on the CAD drawing at the time of matching, and the mismatch is clearly indicated to the operator at the time of mismatch. The technology for processing is described.

[0012]

The conventional circuit diagram connection information output method described above does not detect any element that changes the circuit connection relationship when updating the symbol library information on the circuit diagram data. Since there is a need to strictly manage the modification of the symbol library and the operator to modify the circuit diagram data correctly based on the modification management information, there is a very high possibility of missing a modification. There is.

An object of the present invention is to update the symbol library of the circuit diagram data to the latest symbol library when updating the symbol library information on the circuit diagram data,
To provide a circuit diagram connection information output method that prevents omission of correction of the symbol library by comparing the terminal information of the symbol library before and after the update and outputting the difference information when the terminal information is different. is there.

[0014]

A circuit diagram connection information output method of the present invention is a circuit diagram change system having a symbol registration of a plurality of circuit elements, wherein the circuit connection information is created when circuit connection information is created between the circuit elements. When updating the symbol library of the diagram data to the latest symbol library and updating the symbol library information on the circuit diagram data, compare the terminal information of the symbol library before and after the update, and before and after the update. And outputs the difference information of the terminal information when the terminal information is different.

A circuit diagram changing system having symbol registration of a plurality of circuit elements, a library creating means for creating and modifying a symbol library of circuit elements and outputting symbol library information; storing the symbol library information. A symbol library, a symbol library which outputs symbol library information and latest symbol library information; a circuit diagram input means which outputs the first circuit diagram data by using the symbol library included in the symbol library; The circuit diagram data is stored, and the second circuit diagram data, the symbol terminal information and the first circuit diagram data are stored.
Circuit diagram data storage means for outputting the symbol ID of the second symbol I;
D, a third symbol ID, a fourth symbol ID, and a symbol acquisition unit that outputs an update control signal; and a symbol terminal that inputs the symbol terminal information and the second symbol ID and outputs the first terminal information. Information A acquisition means; terminal information A storage means for inputting the first terminal information and outputting second terminal information; and third terminal ID for inputting the third symbol ID and symbol terminal information Symbol terminal information B acquisition means for outputting; terminal information B storage means for inputting the third terminal information and outputting fourth terminal information; the fourth symbol ID, the second terminal information, Comparing means for inputting the fourth terminal information, comparing the second terminal information and the fourth terminal information, and outputting first difference information; and inputting the first difference information and comparing Presence information and second difference information And the difference information storing means for outputting;
Accumulated difference information storage means for inputting the second difference information and outputting accumulated difference information; and the second symbol acquisition means for receiving the symbol library information, the difference presence / absence information, and the update control signal. Library updating means for updating the symbol library of the circuit diagram data storage means for the symbol ID, updating the second circuit diagram data, and outputting the first updated circuit diagram data;
An updated circuit diagram temporary data storage means for inputting the first updated circuit diagram data and outputting the symbol terminal information and second updated circuit diagram data; and the latest symbol library information from the symbol library. Circuit diagram modifying means for inputting the accumulated difference information, modifying the second updated circuit diagram data, and outputting first modified circuit diagram data; and storing the first modified circuit diagram data New circuit diagram data storage means for outputting second modified circuit diagram data; circuit diagram connection information creating means for outputting circuit diagram connection information based on the second modified circuit diagram data; and circuit diagram connection information And circuit diagram connection information storage means for storing.

The symbol acquisition means controls the library update means by the update control signal to make the first
The symbol library information from the symbol library is updated for the corresponding symbol ID of the circuit diagram data storage means for the symbol ID of
The updated circuit diagram data is stored in the updated circuit diagram temporary data storage means.

The symbol terminal information B obtaining means obtains the symbol terminal information from the updated circuit diagram temporary data storing means for the third symbol ID obtained by the symbol obtaining means, and obtains a terminal for each terminal number. The third terminal information having X and Y coordinates on the circuit diagram is output to and stored in the terminal information B storage means.

The comparing means, with respect to the fourth symbol ID output by the symbol acquiring means, each of the second terminals relating to the symbol IDs stored in the terminal information A storage means and the terminal information B storage means. The information is compared with the fourth terminal information, and the first difference information is output to and stored in the difference information storage means.

When there is a difference in the difference information storage means, the library updating means determines the difference presence / absence information output from the difference information storage means, and the corresponding symbol library of the updated circuit diagram temporary data storage means. On the other hand, the difference information storage means sequentially outputs the second difference information to the accumulated difference information storage means and accumulates the second difference information.

The updated circuit diagram temporary data storage means is
Before and after updating the symbol library, for all symbols except those with different X and Y coordinates of terminals,
It is characterized in that the updated first updated circuit diagram data is stored in the latest symbol library.

The circuit diagram correction means uses the accumulated difference information from the accumulated difference information storage means to output the updated circuit diagram temporary data storage means according to the latest symbol library information from the symbol library. The second updated circuit diagram data is corrected, and the first corrected circuit diagram data is output and stored in the new circuit diagram data storage means.

Further, the circuit diagram connection information creating means generates the circuit diagram connection information from the second modified circuit diagram data stored and output in the new circuit diagram data storage means, and the circuit diagram connection information is generated. It is characterized in that it is output to and stored in the connection information storage means.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a circuit diagram connection information output system of the present invention.

In this embodiment shown in FIG. 1, a library creating means 1 for creating and modifying a symbol library of circuit elements and outputting the symbol library information 32, and a symbol library 3 for storing the symbol library information 32.
3, the symbol library 2 which outputs the symbol library information 40 and the latest symbol library information 34,
Symbol library 33 included in the symbol library 2
Circuit diagram input means 3 for outputting circuit diagram data 43 using
, The circuit diagram data 43 for storing the circuit diagram data 43 and outputting the circuit diagram data 39, the symbol name 19 and the symbol ID 20, and the symbol ID 20 are sequentially acquired, and the symbol ID 21, the symbol ID 42 and the symbol I are acquired.
D30 and the symbol acquisition means 8 for outputting the update control signal 41, the symbol terminal information A acquisition means 5 for inputting the symbol name 19 and the symbol ID 21 and outputting the terminal information 22, and the terminal information 22 for outputting the terminal information 26. Terminal information A storage means 6, a symbol terminal information B storage means 10 for inputting the symbol ID 42 and the symbol terminal information 24 and outputting terminal information 25, and a terminal information B storage for inputting the terminal information 25 and outputting terminal information 27. The means 11 and the comparison means 12 which inputs the symbol ID 30, the terminal information 26 and the terminal information 27, compares the terminal information 26 and the terminal information 27 and outputs the difference information 28, and the difference information 28 which inputs the difference presence / absence information 29 and the difference. The difference information storage unit 13 that outputs the information 44, and the accumulated difference that inputs the difference information 44 and outputs the accumulated difference information 31 The symbol library of the circuit diagram data storage unit 4 is updated for the symbol ID 21 acquired by the symbol acquisition unit 8 in response to the information storage unit 14, the symbol library information 40, the difference presence / absence information 29, and the update control signal 41, and the circuit diagram data 39. To update the updated circuit diagram data 23 and to output the updated circuit diagram data 23, and to input the updated circuit diagram data 23 and output the symbol terminal information 24 and the updated circuit diagram data 35. 9 and the latest symbol library information 34 and accumulated difference information 31 from the symbol library 2 are input,
Circuit diagram correcting means 15 for correcting the updated circuit diagram data 35 and outputting the corrected circuit diagram data 36, and new circuit diagram data storing means for storing the corrected circuit diagram data 36 and outputting the corrected circuit diagram data 37. 16 and corrected circuit diagram data 37
The circuit diagram connection information creation means 17 for outputting the circuit diagram connection information 38 and the circuit diagram connection information storage means 18 for storing the circuit diagram connection information 38 are constituted by the.

Next, the operation will be described.

Referring to FIG. 1, the symbol library 2
Stores the latest symbol library information 32 created / corrected by the library creating means 1. The symbol library information 32 includes a symbol name, symbol graphic information, a terminal number, a terminal name, and terminal position information. The circuit diagram input means 3 creates circuit diagram data 43 using the symbol library 33 of the symbol library 2 and stores it in the circuit diagram data storage means 4. A unique ID is assigned to each symbol of the circuit diagram data storage means 4.

After the circuit diagram creation is completed, the symbol acquisition means 8 reads the symbol ID 20 from the circuit diagram data storage means 4.
Are sequentially acquired. On the other hand, the library updating means 7 inputs the circuit diagram data 39 from the circuit diagram data storing means 4.

The symbol terminal information A obtaining means 5 receives the symbol terminal information 19 and the symbol obtaining means 8 together.
The terminal information 22 of the symbol is obtained from the acquired symbol ID 21 and output to the terminal information A storage unit 6.

FIG. 2 is a diagram for explaining the terminal information of the symbol library.

2A shows the terminal information before updating the symbol library, FIG. 2B shows the terminal information after updating the symbol library, and FIG. 2C shows the difference information.

This terminal information has X-coordinates and Y-coordinates on the circuit diagram for each terminal number of the symbol as shown in FIG. 2A, and is stored in the terminal information A storage means 6. To be done.

From FIG. 2C, terminal number 2 and terminal number 3
Indicates that the terminal coordinates are different before and after updating. Further, the terminal numbers 4 and 5 have the result that the terminals are added.

Next, the symbol acquisition means 8 controls the library update means 7 by the update control signal 41 to obtain the symbol ID 21 acquired by the symbol acquisition means 8 for the corresponding symbol ID in the circuit diagram data storage means 4. ,
Symbol library information 4 from symbol library 2
0 is updated, and the updated circuit diagram data 23 is stored in the updated circuit diagram temporary data storage means 9.

Further, the symbol terminal information B acquisition means 10
Acquires the symbol terminal information 24 from the updated circuit diagram temporary data storage means 9 for the symbol ID 42 acquired by the symbol acquisition means 8 and has the X coordinate / Y coordinate on the circuit diagram of the terminal for each terminal number. The output terminal information 25 is output and stored in the terminal information B storage means 11.

The comparing means 12 obtains the terminal information 26 and the terminal information 27 relating to the symbol IDs stored in the terminal information A storage means 6 and the terminal information B storage means 11 for the symbol ID 30 output from the symbol acquisition means 8. The difference information 28 is compared and the difference information 28 is stored.
Output to and store.

When there is a difference in the difference information storage means 13, the library updating means 7 judges the difference presence / absence information 29 output from the difference information storage means 13, and the corresponding symbol library in the updated circuit diagram temporary data storage means 9 Before updating. On the other hand, the difference information storage means 13 stores the difference information 44,
The data is sequentially output to and stored in the storage difference information storage means 14.

The updated circuit diagram temporary data storage means 9 includes
Before and after updating the symbol library, for all symbols except those with different X and Y coordinates of terminals,
The updated circuit diagram data 23 updated in the latest symbol library is stored.

The circuit diagram correction means 15 uses the accumulated difference information 31 from the accumulated difference information storage means 14 to update the updated circuit diagram temporary data storage means 9 with the latest symbol library information 34 from the symbol library 2. The circuit diagram data 35 is corrected and the new circuit diagram data storage means 16 is provided.
The corrected circuit diagram data 36 is output to and stored in.

The circuit diagram connection information creating means 17 generates circuit diagram connection information 38 based on the corrected circuit diagram data 37 stored and output in the new circuit diagram data storing means 16 and stores it in the circuit diagram connection information storing means 18. Output and store.

FIG. 3 is a flow chart showing the operation of the circuit diagram connection information output system of FIG.

Next, the operation of the present embodiment will be described in more detail with reference to FIGS. 1, 2 and 3.

In FIG. 1, the library creating means 1 is
The existing symbol library is created and modified, and the latest symbol library information 32 is stored in the symbol library 2.

The circuit diagram input means 3 uses the symbol library 33 stored in the symbol library 2 to create circuit diagram data 34 having symbol information and wiring information, and stores it in the circuit diagram data storage means 4. The symbol library used when the circuit diagram is created is also stored in the circuit diagram data storage means 4.

The symbol acquisition means 8 acquires one symbol from the circuit diagram data storage means 4 (step A1).
The symbol terminal information A acquisition means 5 is the symbol acquisition means 8
Is the symbol ID 2 acquired from the circuit diagram data storage means 4.
The terminal information 22 of the symbol is obtained by 1 (step A2). The terminal information has X coordinates and Y coordinates on the circuit diagram of the terminal for each terminal number as shown in FIG. 2A, and is stored in the terminal information A storage means 6 together with the symbol ID. .

Next, the symbol obtaining means 8 controls the library updating means 7 to update the corresponding symbol in the circuit diagram data storing means 4 to the latest symbol library (step A3), and the updated circuit diagram temporary data. The updated circuit diagram data 23 is stored in the storage means 9.

Further, the symbol terminal information B acquisition means 10
Obtains the terminal information 25 of the symbol from the updated circuit diagram temporary data storage means 9 for the symbol ID 42 acquired by the symbol acquisition means 8 (step A4). The terminal information has X coordinates and Y coordinates on the circuit diagram of the terminal for each terminal number, as shown in an example in FIG. 2B, and is stored in the terminal information B storage unit 11.

The comparing means 12 regards the symbols acquired by the symbol acquiring means 8 as the terminal information 26 and the terminal information 27 of the terminal information A storing means 6 and the terminal information B storing means 11.
And the difference information 28 is compared with the difference information storage means 1
3 (step A5).

An example of the difference information is shown in FIG. Difference information such as coordinate difference and terminal addition is displayed for each terminal number of the symbol. Here, terminal number 2 and terminal number 3
Indicates that the terminal coordinates are different before and after updating. The terminal numbers 4 and 5 have the result that the terminals have been added.

The library updating means 7 judges whether the symbols before and after the change are the same, and if there is a difference in the difference information storage means 13, the difference presence information 29 is received and the updated circuit diagram temporary data storage means is received. The corresponding symbol library of 9 is returned to before updating (step A7). For all the symbols in the circuit diagram data storage means 4, the process returns to step A1 and steps A1 to A8 are repeated.
When all symbols are completed, the operation ends (step A
8).

The difference information 44 of the difference information storage means 13 is
The data is sequentially accumulated in the accumulated difference information storage means 14. The updated circuit diagram temporary data storage means 9 stores the updated circuit diagram data 23 updated to the latest symbol library 2 for all the symbols except the symbols whose terminals have different X and Y coordinates before and after the symbol library update. Is stored.

The circuit diagram correction means 15 uses the accumulated difference information 31 of the accumulated difference information storage means 14 and the latest symbol library information 34 of the symbol library 2,
The updated circuit diagram data 35 in the updated circuit diagram temporary data storage means 9 is corrected, and the corrected circuit diagram data 36 is stored in the new circuit diagram data storage means 16.

The circuit diagram connection information creating means 17 uses the modified circuit diagram data 3 stored in the new circuit diagram data storing means 16.
7, the circuit diagram connection information 38 is created and stored in the circuit diagram connection information storage means 18. Circuit diagram connection information storage means 1
The information 8 is used when designing a printed circuit board.

Next, the terminal information will be described in detail.

FIG. 4 is a diagram showing the symbol library before and after correction.

FIG. 5 is a diagram showing symbol information before and after updating.

Referring to FIG. 4, symbol graphic elements as a symbol library before and after correction are shown, and ground terminals 4 and 5 are added as a symbol library after correction. This is a modification that is often implemented to improve electrical characteristics.

Circuit diagram data using this symbol library is expressed as shown in FIG. 5, for example. When the symbol library is modified as shown in FIG. 4, the circuit diagram data after the symbol library is updated is updated as shown in FIG.

In FIG. 5, the symbol library is updated centering on the first terminal.

As a method of updating the symbol library,
In addition, the terminal I is updated around the origin when the symbol library is created, or is managed inside the CAD.
There is a method of updating mainly D1.

Next, the case of updating centering on the first terminal described above will be described.

As the terminal information before and after the symbol library is updated, the information shown in FIGS. 2A and 2B is stored in the terminal information A storage means 6 and the terminal information B storage means 11, respectively.

The comparing means 12 is shown in FIG.
The updated terminal information in (b) is compared, and the difference information as shown in FIG. 2C is stored in the difference information storage means 13. The terminal number 2 and the terminal number 3 are different in the coordinates of the terminals before and after the update. The terminal numbers 4 and 5 have the result that the terminals have been added.

Since the circuit diagram data as shown in FIG. 5 is not a correct circuit diagram, it is necessary to rewire the second terminal and rewire the third, fourth and fifth terminals to the ground.

FIG. 6 is a diagram for explaining other terminal information of the symbol library.

FIG. 6A shows terminal information before updating the symbol library, FIG. 6B shows terminal information after updating the symbol library, and FIG. 6C shows difference information.

6 (a) to 6 (c), the terminal information before and after the symbol library stored in the terminal information A storage means 6 and the terminal information B storage means 11 and compared by the comparison means 12 are compared. Is. The terminal name information for each terminal number is used for comparison information. When the terminal name for each terminal number is different before and after the update, it is highly likely that the logical circuit diagram data needs to be corrected.

A more accurate comparison result can be obtained by the terminal information comparison combining the terminal coordinate information and the terminal name information for each terminal number.

As described above, the circuit diagram data connection information output method according to the present invention updates the symbol library of the circuit diagram data to the latest symbol library when outputting the circuit connection information from the circuit diagram data. The terminal information of the symbol library is compared with that after updating, and when the terminal information is different, the difference information is output.

[0070]

As described above, in the circuit diagram connection information output method of the present invention, the symbol library of the circuit diagram data is updated to the latest symbol library when the circuit connection information is created, and the symbol before and after the update is updated. The terminal information of the libraries is compared, and if the terminal information before and after the update is different, the difference information of the terminal information can be obtained, so the symbol library and circuit connection information used when the schematic data was created. Has the effect of being able to reliably detect a difference from the latest symbol library when trying to output.

Further, by outputting the circuit connection information using the old symbol library and using this circuit connection information for the printed circuit board design, it is possible to prevent the occurrence of a contradiction between the circuit connection information and the printed circuit board library. have.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a circuit diagram connection information output system of the present invention.

FIG. 2 is a diagram illustrating terminal information of a symbol library.

3 is a flowchart showing the operation of the circuit diagram connection information output method of FIG.

FIG. 4 is a diagram showing a symbol library before and after correction.

FIG. 5 is a diagram showing symbol information before and after updating.

FIG. 6 is a diagram illustrating other terminal information of the symbol library.

[Explanation of symbols]

1 Library creation means 2 Symbol library 3 Circuit diagram input means 4 Circuit diagram data storage means 5 Symbol terminal information A acquisition means 6 Terminal information A storage means 7 Library updating means 8 Symbol acquisition means 9 Updated circuit diagram temporary data storage means 10 Symbol terminal information B acquisition means 11 Terminal information B storage means 12 Comparison means 13 Difference information storage means 14 accumulated difference information storage means 15 Circuit diagram correction means 16 New circuit diagram data storage means 17 Circuit diagram connection information creation means 18 Circuit diagram connection information storage means 19 Symbol terminal information 20 symbol ID 21 Symbol ID 22 Terminal information 23 Updated circuit diagram data 24 symbol terminal information 25 terminal information 26 Terminal information 27 Terminal information 28 Difference information 29 Difference information 30 symbol ID 31 accumulated difference information 32 Symbol library information 33 Symbol Library 34 latest symbol library information 35 Circuit diagram data after update 36 Corrected circuit diagram data 37 Corrected circuit diagram data 38 Circuit diagram connection information 39 Circuit diagram data 40 Symbol library information 41 Update control signal 42 symbol ID 43 Circuit diagram data 44 Difference information

Claims (9)

[Claims] 1. A circuit diagram changing system having a symbol registration of a plurality of circuit elements, wherein a symbol library of circuit diagram data is updated to the latest symbol library when circuit connection information between the circuit elements is created. When updating the symbol library information on the circuit diagram data, the terminal information of the symbol library is compared before and after the update, and when the terminal information is different before and after the update, the difference between the terminal information is obtained. A circuit diagram connection information output method characterized by outputting information. 2. A circuit diagram changing system having symbol registration of a plurality of circuit elements, comprising: a library creating means for creating and modifying a symbol library of circuit elements and outputting symbol library information;
A symbol library that stores the symbol library information and outputs a symbol library, symbol library information, and latest symbol library information; and a circuit diagram input that outputs the first circuit diagram data using the symbol library included in this symbol library. Means;
Circuit diagram data storing means for storing the first circuit diagram data and outputting the second circuit diagram data, the symbol terminal information and the first symbol ID; Symbol ID of the third symbol I
D, a fourth symbol ID and a symbol acquisition means for outputting an update control signal; the symbol terminal information and the second
Symbol terminal information A acquiring means for inputting the symbol ID of the first terminal information and outputting first terminal information; terminal information A storing means for inputting the first terminal information and outputting second terminal information; Symbol terminal information B acquisition means for inputting the third symbol ID and symbol terminal information and outputting third terminal information; and terminal information B storage for inputting the third terminal information and outputting fourth terminal information. Means for inputting the fourth symbol ID, the second terminal information, and the fourth terminal information, comparing the second terminal information and the fourth terminal information, and calculating the first difference information. Comparing means for outputting; the first
Difference information storage means for inputting difference information of No. 1 and outputting difference presence information and second difference information; accumulated difference information storage means for inputting the second difference information and outputting accumulated difference information; Library information, the difference information,
For the second symbol ID acquired by the symbol acquisition means upon receiving the update control signal, the symbol library of the circuit diagram data storage means is updated, the second circuit diagram data is updated, and the first update is performed. Library updating means for outputting post-circuit diagram data; post-update circuit diagram temporary data storing means for inputting the first post-update circuit diagram data and outputting the symbol terminal information and second post-update circuit diagram data Circuit diagram correction means for inputting the latest symbol library information and the accumulated difference information from the symbol library, correcting the second updated circuit diagram data, and outputting first corrected circuit diagram data; New circuit diagram data storage means for storing the first modified circuit diagram data and outputting the second modified circuit diagram data; by the second modified circuit diagram data Schematic connection information output method, characterized by comprising a; and schematic connection information creation means for outputting the road view connection information; and schematic connection information storage means for storing the circuit diagram connection information. 3. The symbol acquisition means controls the library updating means by the updating control signal, and the symbol library for the corresponding symbol ID of the circuit diagram data storage means for the first symbol ID. 3. The circuit diagram connection information output method according to claim 2, wherein the symbol library information from the circuit diagram is updated, and the first updated circuit diagram data is stored in the updated circuit diagram temporary data storage means. 4. The symbol terminal information B acquisition means is the third symbol ID acquired by the symbol acquisition means.
The terminal information is obtained as the third terminal information having the X-coordinate and the Y-coordinate on the circuit diagram of the terminal for each terminal number by obtaining the symbol terminal information from the updated circuit diagram temporary data storage means. 4. The circuit diagram connection information output method according to claim 2 or 3, wherein the output is stored in the B storage means. 5. The comparing means, for the fourth symbol ID output by the symbol acquiring means, the second symbol IDs stored in the terminal information A storing means and the terminal information B storing means, respectively. 5. The circuit diagram connection according to claim 2, wherein the first difference information is output to and stored in the difference information storage means by comparing the terminal information of 4 and the fourth terminal information. Information output method. 6. The library updating means, when there is a difference in the difference information storage means, judges the difference presence / absence information output by the difference information storage means, and corresponds to the updated circuit diagram temporary data storage means. The symbol library is returned to the state before updating, while the difference information storage means sequentially outputs and accumulates the second difference information to the accumulated difference information storage means. 5. Circuit diagram connection information output method described in 5. 7. The updated circuit diagram temporary data storage means, before and after updating the symbol library, the X coordinate / Y of the terminal.
7. The first updated circuit diagram data stored in the latest symbol library is stored for all symbols except symbols having different coordinates, according to claim 2, 3, 4, 5 or 6. Circuit diagram connection information output method. 8. The circuit diagram correction means uses the accumulated difference information from the accumulated difference information storage means and uses the latest symbol library information from the symbol library to update the updated circuit diagram temporary data storage means. 5. The second updated circuit diagram data output by the device is modified, and the first modified circuit diagram data is output and stored in the new circuit diagram data storage means.
The circuit diagram connection information output method described in 4, 5, 6 or 7. 9. The circuit diagram connection information creating means generates the circuit diagram connection information based on the second modified circuit diagram data stored and output in the new circuit diagram data storing means, and the circuit diagram connection information is generated. The circuit diagram connection information output method according to claim 2, 3, 4, 5, 6, 7, or 8, wherein the circuit information is output to and stored in a connection information storage means.