JPS62162141A - Program setting device for control equipment - Google Patents

Abstract

PURPOSE:To prevent the abnormal operation of a control equipment from occurring and to easily modify the content of a program by providing two storing means to store the set content of a user program, and setting a flag deciding whether updating is able or not in one of the said storing means, and enabling the updating of the set content in the other of said means. CONSTITUTION:A CPU 1 controls the driving of a display part 5 and a signal outputting part 6 in accordance with a program stored in a system ROM 4 based on the input from a program setting part 2 as a program setting means and a signal inputting part 3. A program ROM 7 stores the set contents of plural programs. In this ROM 7, the RAM selection flag 8 deciding whether the updating of the set-content is able or not is set for each set-content. The CPU 1 decides the presence of flag-'1', '0' by means the said flag 8 as to each set-content. The CPU 1, further, selects to employ the set content of the program ROM 7, or to employ the updated set-content inputted from the part 2 to the RAM 9 by enabling the set-content by means of the part 2 i.e. a key input.

Description

Detailed Description of the Invention (A) Field of the Invention The present invention has a knee 1 ablation program setting section, such as an NG control device in a machine tool or a positioning counter of a robot arm, and a plurality of setting contents can be set. The present invention relates to a program setting device for possible control T211 equipment.

(b) Background of the Invention Conventionally, there are two types of devices as follows, for example, as program setting devices for control equipment in the -F example.

15. All user program settings and constant settings are stored in the p-ROM writer as a storage means.
A P-ROM type program setting device input to M (programmablcROH) and all knee 1F program settings and constant settings are stored in RAM as a storage means by manual input using a large number of function keys as a program setting means. RAM to input
It is a type of program setting device.

Here, with the former P-ROM type program setting device, there is no risk that the necessary program will be changed inadvertently due to erroneous operation, etc., the program will not be erased due to voltage drop or other factors, and the key Since the program cannot be updated by
Although it has the advantage of being easy to use as a dedicated machine, it is not easy to modify or update programs, and the P-ROM must be rewritten even for slight updates.
In addition, there was a problem in that it had poor versatility for small-scale production of various types and prototype production.

In other words, for specific control equipment such as NC control equipment in machine tools, it is usually necessary to frequently change a specific program part of the entire program, but with conventional P-ROM type program setting devices, this is not possible. However, there was a problem in that it was not possible to easily change the program.

The latter RAM type program setting device has the advantage of being highly versatile for programming, allowing the program settings to be easily updated in accordance with field specifications, and being easy to use as a general-purpose device. J3 whose program is deleted due to system trouble such as deterioration
Additionally, when manually operating keys to change a program, careless or erroneous operations may cause the contents of other program areas that must not be changed, such as constant values, to be updated, resulting in abnormal operation of the control equipment. It had some problems.

(C) Purpose of the Invention The present invention provides two storage means for storing user program setting contents, sets a flag indicating whether update is possible in one storage means, and makes it possible to update the setting contents of the other storage means. Programs that cannot be changed can be written in a non-erasable state by setting a flag in one of the storage means to prevent abnormal operation of the control equipment, and program contents that normally require frequent changes can be written to a non-erasable state by setting a flag in one storage means. It is an object of the present invention to provide a program setting device for a control device in which the program contents can be easily changed by updating the contents of the other storage means in accordance with the presence or absence of the above-mentioned flag.

(D) Summary of the Invention The present invention includes a first storage means that stores a plurality of user program setting contents and sets a flag indicating whether or not the setting contents can be updated for each setting; a program setting means for reading out the storage contents of the first storage means and storing updated setting contents from the program setting means; determining the presence or absence of the flag for each setting contents; Based on this determination result, selection control is performed to select whether to use the setting contents of the first storage means or to allow setting input by the program setting means and use update setting contents input from the setting means to the second storage means. The invention is characterized in that it is a program setting device for a control device, comprising a control means.

(E) Effects of the Invention According to this invention, it is possible to distinguish between program contents that normally require frequent changes and program contents that cannot be changed, depending on the presence or absence of a flag in the first storage means. If it is determined that there is, the program contents can be easily changed by allowing the setting input by the program setting means and using the update setting contents input from the setting means to the second storage means. .

In addition, when the control means determines that there is no flag, the setting contents of the first storage means are used and manual setting by the program setting means is prohibited, thereby preventing program changes in the change-prohibited area due to careless operations. This can be prevented by the control means, which has the effect of preventing the occurrence of abnormal operation of the control equipment.

In addition, as the above-mentioned first storage means, for example, the program R
By using the OM, it is possible to prevent program contents that cannot be changed from being erased due to low voltage F or other system troubles.

(f) Examples of the invention An embodiment of the present invention will be described in detail below based on the drawings.

The drawing shows a program setting device for a control device. In FIG. 1, a CPU 1 executes a program according to a program stored in a system ROM 4 based on inputs from a program setting section 2 and a signal input section 3 as program setting means. The display unit 5 and the signal output unit 6 are driven and controlled, and the program ROM 7 stores a plurality of user program settings, and as shown in FIG. is set.

Further, the RAM 9 reads the storage contents of the program ROM 7 described above into its user program area 10, and stores the updated setting contents from the program setting section 2, and
In the system area 11 of M9, for example, the current operating mode,
Temporarily stores data necessary to drive the system, such as current values.

Here, the aforementioned program setting section 2 is a program setting means that includes a large number of function keys (not shown) and sets a plurality of user program setting contents.

In addition, the (i:+'';'J input unit 3 reads input from, for example, a rotary encoder of an NC-controlled machine tool, etc., in correspondence with Kneesab [1 gram), and changes the processing procedure depending on the input state.

Furthermore, the display unit 5 visually displays necessary conditions such as the current operating mode, current value, and step input error.

Furthermore, the signal output section 6 does not output an output such as a servo motor drive signal in accordance with the user program.

In addition, the CPU 1 determines whether the RAM selection flag 8 has flags ``1'' and ``O'' for each of the above-mentioned settings.
Based on this determination result, use the setting contents of the program ROM 7, or allow setting input by the program setting section 2, that is, manual key input, Selection control is performed as to whether or not to use the update setting contents input from the program setting section 2 to the RAM 9.

FIG. 2 shows a program configuration diagram, and in this embodiment, the first
Total n from setting step 21 to nth setting step n
In addition to storing each program setting content in the program ROM 7 corresponding to the setting step, the program content that normally requires frequent changes, that is, the first setting step 2
In accordance with the program contents of the first and third setting steps 23, the RAMm selection flag 8 sets the flag ``1''.
Program contents that cannot be changed corresponding to other setting steps are flagged to ``1'' by RAM selection flag 8.
`` is dropped to set the flag to ``0'', thereby prohibiting the program setting section 2 from manually operating the keys, and prohibiting the RAM 9 from reading out the contents of the blockogram.

The illustrated example is a 4j4 system as described above, and the operation will be explained below.

When performing NC control on, for example, a machine tool based on the program settings, at step 31 in the flowchart of FIG. 3, the CPU 1 performs the setting step (
(see Figure 2), the next 12th step 3
In step 2, CPU 1 sends RA to the called setting step.
M3! It is determined whether the flag "1" is set based on the l selection flag 8, and when it is determined that the flag "1" is set, in the next thirteenth step 33, the CPU 1 reads the RAM 9.
The corresponding settings in the user program area 10'
Using the step data, that is, the program settings,
When it is determined that the flag 1 is not set and is set to "0", in the next 14th step 34, the CPU 1
uses the data in the corresponding setting step of the program ROM 7.

That is, in the first setting step 1 and the third setting step 3 in which the flag "1" is set in FIG. 2, the program setting contents of the user program area 10 of the RAM 9 are used, and in the other setting steps
The program settings of M7 are used.

By the way, RAM requires frequent changes during normal operation.
9, first setting step 21 and third setting step 23
When changing the setting contents, the CPU calls the setting step (see Fig. 2) according to the flowchart in Fig. 4.
In the second step 42, CPLJ1 determines whether or not the flag "1" based on the RAM selection flag 8 is set in the called setting step. , the CPU allows the program setting section 2 to update data in setting steps based on manual key operations.

As a result, by operating a function key (not shown) of the program setting unit 2, the user can update the cutting depth, travel distance, and other updated data by the drill, for example, in the user program area of the RAM 9 via the CPUI. The setting steps in step 10 can be easily performed manually.

On the other hand, when it is determined in the above-mentioned 22nd step 42 that the flag ``1'' by the RAM selection flag 8 is not set in the setting step called by CPtJl and is set to 0'', the next 24th step 44 is performed. , CPU1 is
It prohibits the reading of the setting contents from the program ROM 7 of the RAM 9, prohibits manual key input, and at the same time treats it as a step input error and does not display the step contents. Even if you operate it, program settings that cannot be changed will not be changed inadvertently.

In other words, depending on the presence or absence of flags in the program ROM 7, it is possible to distinguish between program contents that normally require frequent changes and program contents that cannot be changed.
If it is determined that the flag is present in pui, the setting input by the program setting section 2 is allowed, and the setting section 2 sends the RA.
By using the update setting contents inputted to M9, it is possible to easily change the program contents.

Furthermore, if the CPU 1 determines that there is no flag, it uses the settings in the program ROM 7 and prohibits setting input by the program setting section 2. CPU of
1, which has the effect of preventing the occurrence of abnormal operation of the control equipment.

In addition, by using the program ROM 7, it is possible to prevent program contents that cannot be changed from being erased due to voltage drop or other system troubles.

In the correspondence between the configuration of the present invention and the embodiment described above, the flag of the present invention corresponds to the flag 1"'0" by the RAM selection flag 8 of the embodiment, and the first storage means is the program ROM 7. Correspondingly, the program setting means corresponds to the program setting section 2, the second storage means corresponds to the RAM 9, and the control means corresponds to the CPU 1, but the present invention is limited only to the configuration of the above-mentioned embodiment. It's not a thing.

In addition, this invention has a P-
Two storage means equivalent to ROM and RAM are required, but in recent years, with the development of IC technology, P-R
Considering the current situation where OM and RAM are supplied at low prices, there is no problem in terms of cost compared to the conventional example.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a control circuit block diagram showing a program setting device for a control device, FIG. 2 is a program configuration diagram, and FIG. 3 is a program data execution flowchart. -g, 4th
The figure shows a program update setting flowchart 1-. 1...CPU 2...Program setting unit 7...Program ROM 8...RAMm selection flag 9...F △M

Claims (1)

[Claims] 1. A first storage means that stores a plurality of user program settings and sets a flag indicating whether or not the settings can be updated for each setting; and a program that sets a plurality of user program settings. a setting means; a second storage means for reading the storage contents of the first storage means and storing updated setting contents from the program setting means; determining the presence or absence of the flag for each setting contents; Control means for selectively controlling whether to use the setting contents of the first storage means based on the result, or to allow setting input by the program setting means and use the updated setting contents input from the setting means to the second storage means. A program setting device for control equipment.