JPH0533202U - Sequencer - Google Patents

Abstract

(57) [Summary] [Object] The present invention aims to provide a sequencer that prevents unnecessary program parts from being output to the screen and does not cause unnecessary confusion to the operator in charge of machine operation. [Structure] A flag bit portion provided at a head address of a sequence program which is divided into blocks for each functional unit and stored in a memory, and a program of a functional block to be executed as a control target in each functional block. A parameter setting unit for selecting and setting the flag of the flag bit unit; and a control unit for searching the flag set by the parameter setting unit and controlling the sequencer so as to execute only the program of each selected functional block. Is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a sequencer in which the sequence program installed in the sequencer is divided into blocks for each function and programmed so that execution or non-execution can be selected for each function block program when the sequencer is actually operated. Related to.

[0002]

[Prior Art]

 The sequence program of the sequencer is created according to the functions of the machine or equipment of the end user, such as automatic tool change (ATC) function, pallet pool line (PPL) function, spindle control function, table control function, etc. However, the specifications of machines or devices are often different for each end user, or the functions are not the same, and creating a sequence program for each end user requires a great deal of man-hours from the manufacturer side. There was a problem that it was very troublesome. Therefore, manufacturers often create a sequence program to be installed in the sequencer of a mass-produced machine as one that covers all the functions required by a wide variety of end users. When an end user executes a sequence program that covers all such functions, the sequence program is read from the beginning to the end by the sequencer, but the functions of the machine or device that the end user does not have are not executed. It can be said that there is no particular inconvenience in using the sequence program.

[0003]

[Problems to be solved by the device]

 However, in this case, the entire sequence program is output to the output device such as the CRT or the printer even if the end user does not have the function of the machine or the device. That is, for example, the control program of the pallet pool line (PPL) function and the drawings related thereto are displayed on the output device such as the CRT even if the end user does not have the function. This makes it difficult for the operator in charge of machine operation to see the screen, and may cause an erroneous operation in some cases. The present invention was devised in view of such problems, and an unnecessary program part is not output to the screen, and only the program part of the functional block to be actually executed is displayed on the screen such as a CRT. The purpose is to provide a sequencer that can be displayed so as not to cause unnecessary confusion to the operator in charge of machine operation.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is equipped with a sequence program that is programmed by being divided into blocks for each functional unit and stored in a memory, and performs machining based on the installed sequence program. In the sequencer, a flag bit part is provided at the start address of each function block of the sequence program that is divided into blocks for each function unit and stored in the memory, and is executed as a control target in each of the function blocks. The program of the functional block to be executed is selected, the parameter setting section for setting the flag of the flag bit section and the flag set by the parameter setting section are searched by this selection, and each functional block selected by this search Control unit that controls the sequencer to execute only the specified program It is an arrangement comprising a.

[0005]

[Work]

 First, when creating a sequence program, each function to be realized by the sequencer is divided into blocks and programmed. In this case, a flag bit part is provided at the head address part of each function block. In the parameter setting means, the program of the unnecessary function block part that is not the control target is omitted, and the parameter is specified so that only the program of the function block to be executed can be selected. When this designation is made, the flag bit of the corresponding functional block becomes 1, and the flag is set. The control section controls the sequencer by selectively executing only the program of the functional block in which the flag of the flag bit section is set. By doing so, the program of the functional block portion which is not selected by the parameter setting means will not be output to the screen of the CRT.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of essential parts showing a device configuration of the present invention. In the figure, reference numeral 1 is a central processing unit (hereinafter referred to as CPU). A data input / output control unit 2 to which a CRT, a keyboard and the like are connected to the CPU 1 via a main bus 1 ', an I / O interface 3 for connecting various devices, and an NC for connecting to an NC device. Interface 4, Power supply unit for AC 100 volt power input 5, I / O units 6 and 7 for connecting printer, floppy disk (FD), paper tape reader (PTR), etc. are connected, and this sequencer is controlled. A ROM 10 which is a memory for storing a control program for executing the program, a RAM 9 for storing a sequence program, and a RAM 8 for storing a parameter for selecting a program of a desired functional block are connected.

FIG. 2 shows the structure of the sequence program of the present invention, and this sequence program is created to cover all the various functions required by the end user. That is, as shown in the figure, the common part of the program is placed at the beginning, followed by the blocked programs for each function from the function A program to the function E program. FIG. 4 shows a specific memory map of such a sequence program. In this example, the flag bit of the function program indicated by the address number Cxxx is provided immediately before each function program. That is, the function A flag bit indicated by the address number C0000 is provided immediately before the function A program, and the program up to the address number C0FFF is the function A program. Next, this function A program is followed by a function B flag bit indicated by address number C1000. After that, the function B program is executed up to the address number C1FFF. Similarly, the function E program continues up to the address number C4FFF.

FIG. 3 illustrates a state in which the sequence program created by blocking each function is selected and displayed by setting the parameters. For example, in this example, the function A and the function C are displayed. The program of is selected and enabled by the parameter setting and is displayed together with the common program part of each function described at the beginning of the memory, and the programs of other functions B, D, E are displayed. Not done.

In the sequencer configured as described above, first, parameters are input from the keyboard to select a program for a required functional block. (Hereinafter, refer to FIG. 1) The input parameters are stored in the RAM 8 which is a memory for storing the parameters under the control of the CPU 1. With this parameter set, the sequencer control programs are stored in the respective memories, that is, the ROM 10 as described above, and the sequence programs created by blocking each function in the RAM 9 are created. Is remembered.

FIG. 5 is a flowchart for explaining the processing procedure of the sequencer in which the parameters have been set in this way. In the figure, when the execution of the sequencer is instructed by operating the keyboard, the memory 8 for storing the parameters is searched by the control of the CPU 1 as a control unit and the program to be executed is read (step S1). ). The flag bit of the program of the functional block to be executed by this search is set to 1 to set a flag (step S2). Next, the sequence program is read (step S3), and only the program of the functional block having the flag bit portion flagged in step S2 is selectively executed repeatedly for a predetermined number of times (step S4), and the processing ends. .. In this way, parameters are not set and unnecessary programs for the sequencer are ignored and not executed, so they are not displayed on the screen of the CRT or the like.

[0011]

[Effect of the device]

 As described above, according to the present invention, the sequence program installed in the sequencer is created by dividing it into blocks for each function, the flag bit part is provided at the head address part of each block, and the flag is set by setting the parameters. It becomes possible to operate and selectively execute the program based on the operated flag. Therefore, the part of the program that is not executed is not output to the CRT, so that the display screen is easy to see and a sequencer that does not cause unnecessary confusion to the operator in charge of operation can be realized. Therefore, according to the present invention, if one sequence program, which should be called a master program including various specifications, is created, it can be installed in all sequencers and should be performed for each different specification. Rewriting the sequence program is not necessary, and the manufacturing man-hour can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts showing a device configuration of the present invention.

FIG. 2 is a diagram showing a configuration of a sequence program of the present invention.

FIG. 3 is a diagram illustrating a state in which a sequence program created by blocking each function is selected and displayed by setting parameters.

FIG. 4 is a diagram showing a specific memory map of a program created for each functional block.

FIG. 5 is a flowchart illustrating a processing procedure of a sequencer whose parameters have been set.

[Explanation of symbols]

 1 ... Central processing unit (CPU) 1 '. Main bus 2. Data input / output control unit 3 ... I / O interface 4 ... NC interface 5 ... Power supply unit 6 ... I / O interface 7 ... I / O interface 8 ... RAM 9 ... RAM 10 ROM

Claims (1)

[Scope of utility model registration request] 1. A sequencer in which each functional unit is programmed into a block and programmed, and a sequence program stored in a memory is installed, and machining is performed based on the installed sequence program, wherein the functional unit A flag bit portion is provided at the head address of each functional block of the sequence program that is divided into blocks and stored in the memory, and the program of the functional block to be executed as a control target is selected from among the functional blocks. , A parameter setting unit that sets a flag of the flag bit unit of the selected function block, and a flag set by the parameter setting unit are searched, and only the program of each function block selected by this search is executed. And a control unit for controlling the sequencer A sequencer characterized by that.