JPH08247U - Programmable controller programming device - Google Patents

Abstract

(57) Abstract: It is possible to change whether or not to add "0" to numerically displayed numerical data to a user's favorite numerical data display mode even after manufacturing a programming device. SOLUTION: An instruction means 100 makes it possible to selectively instruct whether or not to add "0" to displayed numerical data, and a character processing means 200 indicates "0" according to the instruction selected by the instruction means 100. Character processing is performed on the numerical data in the form of displaying "0" or without adding "0", whereby the numerical data of the desired display form subjected to character processing is visually displayed on the output means 300.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a programming device that inputs and outputs information to and from a programmable controller.

[0002]

[Prior art]

 Conventionally, in this type of programming device, numerical data input / output to / from a programmable controller is displayed in a format predetermined by the manufacturer. As the scope of application of programmable controllers expands, the disadvantages of displaying numerical data in a fixed format will appear. For example, FIGS. 4 (A) and 4 (B) show an example of displaying the sequence program to be input in the form of a ladder diagram, but the identification numbers named for the components of the program are constructed using numerical data. It is displayed with the elements. At this time, as shown in FIG. 4 (A), a display format in which a numerical value “0” is added to the identification number to represent the number of significant digits, and as shown in FIG. 4 (B), The manufacturer prepares two types of display formats that display only numbers. The display format that adds "0" to the numerical data has the advantage that it is possible to see at a glance how many digits each numerical data has. However, instead of displaying unnecessary "0", the numerical value is displayed to the user. The drawback is that the data is difficult to see. In the format that displays only the effective figures, it is easy to see because there are few "0" s, but there is a drawback that the number of digits of each numerical data cannot be grasped. Thus, the two display formats have advantages and disadvantages, so the display format was determined according to the manufacturer's preference.

[0003]

[Problems to be solved by the device]

 However, since such a display format is fixedly set when the programming device is manufactured, the conventional programming device has a problem that the display notice cannot be changed after the manufacturing. Therefore, an object of the present invention is to solve such a problem and to provide a programming device in which the user can freely change the display format of the desired numerical data even after the programming device is manufactured.

[0004]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention provides a programmable device capable of visually outputting sequence program information including numerical data transmitted / received to / from a programmable controller. A first numerical display form for adding the numerical value 0 to indicate that, and a second numerical display form for not adding the numerical value 0 to the numerical data to be output, When the second numerical display form is instructed by the instructing means while the numerical data of the sequence program is programmed in the first numerical display form, the numerical data of the sequence program is displayed in the second numerical display form. When processed and the numerical data of the sequence program is programmed in the second numerical display form, When the first numerical value display mode is instructed, characterized in that comprises a character processing means for character processing numerical data of the sequence program to a first numerical display form.

According to the present invention, when the instruction means gives an instruction as to whether or not “0” is added to the numerical data to be output, the character processing means performs the character processing on the numerical data in the desired display form. Therefore, even after the programming device is manufactured, the user can select the display form of the numerical data by the instructing means according to the usage status of the programming device.

[0006]

[Embodiment of device]

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows the basic structure of the embodiment of the present invention. In FIG. 1, 100 is a first numeric display form in which a numeric value 0 is added to the upper digit of the numeric data to be output to indicate the number of significant digits, and a numeric value 0 is added to the numeric data to be output. This is an instruction means for selectively selecting and instructing the second numerical display form that does not exist. Reference numeral 200 is a character processing means for character-processing the numerical data to be output so as to be the numerical data in the display mode instructed by the instructing means 100. An output device 300 visually displays on the display device the data to be displayed output from the character processing means 200.

[0007]

Embodiment 1 FIG. 2 shows a specific configuration of an embodiment of the present invention. In FIG. 2, reference numeral 1 is a keyboard for inputting a sequence program and various data, and an instruction key 1-1 for instructing the display form of numerical data is provided. Reference numeral 2 denotes a central processing unit (CPU), which exchanges information with a programmable controller via an interface 7, and displays information input from the keyboard 1 or information sent from a programmable controller on a display device 5 or The printer 6 is made to output visually. Reference numeral 3 denotes a read only memory (ROM) for storing control procedures for well-known processes performed by the programming device in addition to the control procedures shown in FIGS. 3 (A) and 3 (B). A random access memory (RAM) 4 temporarily stores information input from the keyboard 1 and information sent from the programmable controller. Numerical data is converted into numerical data in the display form designated by the instruction keys 1-1 from these information, and is stored again in the RAM 4 as data to be output.

The operation of this embodiment will be described below with reference to the flow charts of FIGS. 3A and 3B. When the user inputs an instruction of a display mode in which “0” is added to the numerical data by using the instruction keys 1-1, the CPU 2 stores this instruction in the RAM 4. Next, the CPU 2 executes a conventionally well-known process according to a control command input from the keyboard 1, for example, a sequence program input process. When displaying the input sequence program, the CPU 2 identifies that the data to be displayed is numerical data, and then, according to the instruction content of the instruction key 1-1 stored in the RAM 4, Character processing is performed (steps S1 to S3). In the present embodiment, since the addition of the "0" character is instructed, the CPU 2 adds "0" to the numerical data according to the procedure shown in FIG. The processed numerical data is visually output to the display device 5 or the printer 6 (steps S3-S5-S6). After that, the CPU 2 repeats the above-mentioned procedure for all the display-skipping data, performs the character processing for adding the "0" character to all the numerical data to be output, and ends the control procedure. When the CPU 2 determines that the key 1-1 is instructing to display the numerical data as it is without adding the "0" character, the data to be displayed is kept as it is from the RAM 4 and the display device 5 or the printer. It is transferred to 6 and displayed visually (steps S3-S4-S6).

FIG. 3B shows a control procedure for adding the “0” character to the numerical data in step S5 shown in FIG. The CPU 2 first calculates the number of "0" s to be added to the numerical data. For example, when the numerical data "12" is represented by 4 significant digits, "2" (digit) is obtained as a rounded up integer value of the common logarithm with "12" of the numerical data "12" as an antilogarithm. Since this "2" indicates the number of digits of the numerical data, the number of "0" s to be added is calculated as 4-2 = 2 (pieces) (step S10). Next, after converting the numerical data "12" into character data "1 2", the character data "00" consisting of two "0" characters and the character data "12" are added, and the character data "0012" is added. Is calculated (steps S11-S12). The character data “0012” that has been character-processed by such a procedure is used as the data to be displayed.

In this embodiment, an example in which the character “0” is added to the numerical data that can be displayed as it is is shown. However, in the case of a programming device that adds “0” to the numerical data for display, If only the "0" character is deleted from the most significant digit of the numerical data to be displayed, it is possible to make the display data only numerical characters excluding "0".

[0011]

[Effect of device]

 As described above, according to the present invention, when the instruction means selects whether or not to add “0” to the numerical data to be output, the character processing means responds to the instruction to the desired display form. Since the character data is processed on the numerical data of, the user can change the display form of the numerical data of the sequence program according to the usage status of the programming device even after the programming device is manufactured.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of an embodiment of the present invention.

FIG. 2 is a circuit diagram showing a specific configuration of an embodiment of the present invention.

3A and 3B are diagrams for explaining the operation of the CPU 2 shown in FIG. 2, where FIG. 3A is a flowchart showing a control procedure of the programming device, and FIG. 3B is a control procedure for adding a “0” character to numerical data. Flowchart showing

FIG. 4 is a diagram showing a display example of a conventional device, (A) is an explanatory diagram in which a “0” character is added and displayed, and (B) is a “0”.
Explanatory drawing to display without adding characters

[Explanation of symbols]

 1 keyboard 1-1 instruction key 2 CPU 3 ROM 4 RAM 5 display device 6 printer

Claims (1)

[Scope of utility model registration request] 1. In a programming device capable of visually outputting sequence program information including numerical value data transmitted and received to and from a programmable controller, a numerical value 0 for indicating an effective numerical value digit number is set in an upper digit of numerical value data to be outputted. Instructing means for selectively selecting the first numerical display form to be added and the second numerical display form in which the numerical value 0 is not added to the numerical data to be output, and the numerical data of the sequence program are the first. When the second numerical display form is instructed by the instructing means while being programmed in the numerical display form, the numerical data of the sequence program is character-processed to the second numerical display form, and the numerical data of the sequence program is changed. When programming in the second numerical display form, the first numerical display form is instructed by the instructing means. That the programmable controller programming apparatus, characterized in that it comprises a character processing means for character processing numerical data of the sequence program to a first numerical display form.