JP2547874B2 - Program check device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of the Invention] The present invention relates to an engineering tool for a microcontroller (hereinafter, abbreviated as “tool”) used for creating a program to a microcontroller (hereinafter, “tool”). The present invention relates to an improvement of a program check device that performs a program check when a program is downloaded to a controller.

[Prior Art] Conventionally, such an apparatus downloads all tasks from a tool used for program creation to a controller at one time, and performs program checks on all tasks there. Then, as a result of the program check, if there is an error, the loaded object is invalidated. If it is normal, the subroutine nesting check and the subroutine registration status check of each task are further performed, and if there is an error or an unregistered subroutine, the loaded object is invalidated. Such processing was performed for all tasks.

By the way, recently, a controller capable of partially downloading in task units and a controller capable of downloading even during operation have been developed.
However, because all the tasks that are not required for such a controller are downloaded and the program check is performed for all the tasks, it may take a long time for the program check without fully using the controller functions. It was. Also, if the subroutine used by each task is not registered, an error will occur as described above and it will not be possible to download.
Alternatively, it had to be loaded without performing the subroutine registration check.

[Problems to be Solved by the Invention]

Therefore, in the conventional program check device, all tasks are downloaded, so it takes a long time to check the program, and if the subroutine is not registered, a program check error occurs and the program cannot be loaded. There was a problem that productivity deteriorated.

The present invention has been made in view of the above circumstances, and can shorten the time required for a program check, can partially load even an unregistered subroutine, and can perform integrated management of program resources. It is an object of the present invention to provide a program check device that can be implemented and can improve the productivity of software.

[Means for Solving the Problems] [Means for Solving the Problems] In order to solve the above problems, the present invention provides a program check device for downloading a created program to a controller and checking the program. Means for downloading a part of the program to the controller in units of tasks, means for creating a subroutine registration table in which the current subroutine registration state is described, and downloading from the subroutine registration table to the controller in units of tasks. Means for searching for a subroutine related to the program and determining its registered state, and if an unregistered subroutine is searched for by this means, the operating state of the controller is determined and the controller is in the online state. Then the Rohde Invalidates the object of packaging programs, and the controller has a configuration and means for validating the object of the loaded program if offline.

[Action]

According to the present invention, by taking the above means, a part of the created program is downloaded to the controller on a task-by-task basis, and the program check is executed only for that program. It is shortened.

Further, a subroutine related to the program downloaded to the controller is searched from the subroutine registration table in which the registration state of the current subroutine is described, and the registration state is judged. If there is an unregistered subroutine, the operating state of the controller is further determined, and if the controller is in the online state, the program object is invalidated, and if the controller is in the offline state, the program object is valid. It Therefore, even if there is an unregistered subroutine, depending on the operating state of the controller, the downloading can be performed, and the controller can centrally manage the program resources.

〔Example〕

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

FIG. 1 is a diagram showing a schematic hardware configuration of a program check device according to an embodiment. In this program check device, a controller 1 is connected to a tool 3 via a communication line 2, and a program part in task units is downloaded from the tool 3 to the controller 1 to perform a program check.

Inside the controller 1, two CPUs with different operations,
There are A-CPU11 and B-CPU12. The A-CPU 11 operates based on the flowcharts shown in FIG. 2 and FIG. 3, receives the text for downloading from the tool 3, and refers to the controller status (operating state) stored in the status memory 13. Meanwhile, the program check is executed, and if the program is normal, the downloaded object is stored in the program memory 14. B-
The CPU 12 sets the operating state of the controller 1 in the status memory 13 and sequentially executes the objects in the program memory 14 to communicate with the input / output memory 15.

Next, a specific operation of this embodiment will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, when the program is downloaded from the tool 3 to the controller 1 in task units, a program unit check of the downloaded task or subroutine is executed (step S1). If there is an error in this check, the error text in which the error information is written is displayed in Tool 3
Send to and invalidate the downloaded object. If the program unit check is normal, then it is determined whether the downloaded object is a subroutine (step S2). As a result, if the downloaded object is a subroutine, a subroutine nesting check is executed (step S3). If there is an error in this check, the error text is sent to the tool 3 and the downloaded object is invalidated. If the loaded object is determined to be a task in the process of step S2, a subroutine registration state check is executed (step S4).

The subroutine registration status check will be described in detail below. FIG. 3 is a flowchart showing the specific processing contents of the subroutine registration status check. The subroutine registration status check is performed using the subroutine registration table shown in FIG. This subroutine registration table is stored in the program memory 14 inside the controller 1,
The status of the currently registered subroutines FN1 to FNn is
Whether "Subroutine number", "Subroutine registration",
Presence or absence of "use call statement", "number of higher level tasks",
It is written as "the number of upper level subroutines" and "warning".

In the subroutine registration status check, first, it is checked whether the downloaded task or subroutine is a modification of old contents or a new registration (step S11). As a result, in the case of changing the old contents, the call sentence of the downloaded object is searched, and if there is a subroutine used, the area of the area corresponding to the used subroutine number in the subroutine registration table is searched. Subtract one from the "higher level number",
Rewrite the subroutine registration table (step S12). That is, when the old object is a task, the "upper level task number" is subtracted, and when the old object is a subroutine, the "upper level subroutine number" is subtracted.

Next, the call sentence of the newly downloaded object is searched, and if there is a subroutine in use, the "number of upper level lines" in the area corresponding to the subroutine number in use in the subroutine registration table is checked. The subroutine registration table is rewritten such that one is added (step S13). That is, when the newly downloaded object is a task, the "upper level task count" is added. When the new object is a subroutine, the "number of upper level subroutines" of the corresponding subroutine number is added, "Subroutine registration" is set to "Yes", and if a call statement is used, "Call statement used" Is “present”.

Next, in the subroutine registration table, if the sum of "upper level task number" and "upper level subroutine number" is not "0" and "subroutine registration" is "absent", set "warning" to "yes" , Other subroutines set "warning" to "none". That is, if there is a higher-level task or higher-level subroutine that uses the subroutine, but "subroutine registration" has not been made (if there is an unregistered subroutine),
"Warning" becomes "Yes". Therefore, all subroutines used by the downloaded object are searched in the subroutine registration table, and if there is no subroutine with "warning" being "Yes", it is judged that there is no unregistered subroutine, and even one If "warning" is "present", it is determined that there is an unregistered subroutine (step S14).

If "warning" is "none" in all the searched subroutines, the downloaded object is registered in the program memory 14 (step S15), and normal text is transmitted to the tool 3 (step S16).

On the other hand, if at least one of the retrieved subroutines has a "warning", it is determined that the subroutine has not been registered and the operating state of the controller 1 is checked (step S1.
7). As a result, when the operating state of the controller 1 is online, an error text is transmitted to the tool 3 and the downloaded object is invalidated (step S18). When the operating state of the controller 1 is offline, the downloaded object is registered in the program memory 14 without invalidating immediately (step S19), and a warning text is transmitted to the tool 3 (step S20).

According to the present embodiment as described above, the controller that can partially download the program created by the user in units of tasks is used to perform the program check only for the partially downloaded tasks and subroutines. Compared with the conventional method of checking the registration status of the subroutines used by all tasks, the time required for the program check can be greatly reduced.

Also, when a task or subroutine that uses an unregistered subroutine is downloaded, the operating status of the controller 1 is determined, and if it is offline, the downloaded object is validated and a warning text is displayed as a tool. Since the data is transmitted to the controller 3, it is possible to unify the program resources in the controller 1 even when the program is incomplete even when it is offline. Therefore, it is possible for a plurality of operators to download an object at any time using a plurality of tools, so that it is possible to improve the productivity of software.

[Effects of the Invention] As described in detail above, according to the present invention, the time required for program check can be shortened, partial downloading can be performed even if there is an unregistered subroutine, and unified management of program resources can be performed. Therefore, it is possible to provide a program check device capable of improving the productivity of software.

[Brief description of drawings]

FIG. 1 is a block diagram showing the hardware configuration of the embodiment,
FIG. 2 is a flow chart showing the processing of the program check, FIG. 3 is a flow chart showing the processing of the subroutine registration status check, and FIG. 4 is a diagram showing the subroutine registration table arranged in the program memory. 1 ... Controller, 2 ... Communication line, 3 ... Tool, 11,1
2 ... CPU, 13 ... Status memory, 14 ... Program memory, 15 ... Input / output memory.

Claims (1)

(57) [Claims] 1. A program check device for downloading a created program to a controller to check the program, means for downloading a part of the created program to the controller in units of tasks, and Means for creating a subroutine registration table in which the subroutine registration status is described; means for searching the subroutine registration table for a subroutine related to the program downloaded to the controller in task units, and determining the registration status If an unregistered subroutine is searched by this means, the operating state of the controller is judged, and if the controller is in the online state, the object of the program downloaded to the controller is invalidated. And a means for validating the object of the downloaded program when the controller is in an off-line state.