JPS5998205A - Control operation system of machine - Google Patents

Abstract

PURPOSE:To simplify each software, to reduce the burden of an operating part and make it possible to use high-class languages by making software of the operating part and that of a machine control part independent of each other. CONSTITUTION:A personal computer 10 reads in a detection signal for the completion of the one-cycle operation from a sequencer 11 through an interface 12 to perform the optimizing operation for the next processing and outputs the result to the sequencer 11 through the interface 12. The sequencer 11 performs the control successively in accordance with this signal and outputs a cycle operation signal to various motors 1 to control a machine body. The sequencer 11 discriminates the completion of the operation by the signal due to an external detector 7 to send a completion signal to the personal computer 10, and the personal computer 10 repeats this operation to control the machine body continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a machine control calculation system that uses a computer to calculate and control machine operations.

Conventionally, there has been a system of this type as shown in FIG. In the figure, (1) is a motor for operating each part of the machine, (2) is a microprocessor, (8) is a memory that stores an instruction program for arithmetic control, and (4) is a motor ( A decoder that distributes the command signal to 1) into 9 parts, (5) is a relay that drives and controls the motor (1), and (6) converts the command signal distributed by the decoder (4) into an excitation signal for the relay (5). The relay interface (7) is an external detector that detects the operating status of the machine, and the microprocessor (2) periodically sends the status detection signal from the external detector () through the decoder (4). The motor (1) is read based on the signal.
The motor (1) is operated via a decoder (4), a relay interface (6), and a relay (6), thereby controlling the machine body.

That is, as shown in FIG. 2, the microprocessor (2) first reads the machine state detection value by the external detector (γ), and then controls the operation of the motor (1) based on the detected value. It is determined whether the calculation is necessary or not, and if the judgment result is that the calculation is not necessary, it is prepared for reading the next cycle. Calculates the optimum control amount that can optimize machine operation, stores the calculated value data in the output sofa, and then branches the υ instruction program using the interwoven signal to output the calculated value data to the motor (1). Controls machine operation. Note that during this control operation, the above-mentioned calculation operation is stopped.

The conventional system shown in FIG. 1 also has a keyboard (8) and a display (9), and displays each control step of the microprocessor (2) and its calculated values as necessary on the display (9). The keyboard (
8), the instruction program in the memory (8) can be changed.

Conventional control calculation systems are configured as described above, and since the microprocessor is responsible for the control function as well as the calculation function, the software for the control device is complex9 and takes a long time to develop. The disadvantage is that it is difficult to change the calculation method.

Another drawback is that it is impossible to use high-level languages that require a lot of calculation time because machine operations are constantly monitored.

The present invention has been expressed in view of the diagonal point, and includes a calculation section and a machine control section, and by making the software of the calculation section and the machine control section independent from each other, it is possible to simplify each software. An object of the present invention is to provide a control calculation system that can reduce the load on a calculation unit and use a high-level language.

Hereinafter, an embodiment of the present invention will be described with reference to FIG. 6, in which the same parts as in FIG. 1 are denoted by the same reference numerals.

In the figure, the shout is a personal computer (the computing part).
(hereinafter referred to as a personal computer), (111 is a sequencer which is a machine control unit that controls the main body of the machine, and a computer θ0 and sequencer (11
This is an interface for sending and receiving data between these PC software and the sequencer (ID software is independent. The PC (10) calculates the optimum control amount, etc., and the sequencer 01 calculates the output of various motors (1). In other words, the PC output is made using a high-level language such as BASIO, and as shown in Fig. 4, the detection signal at the completion of one cycle operation is sent from other than the sequencer. is read through the interface ((2), performs optimization calculations for the next process, and outputs the result to the sequencer (b) through the interface (increase). Therefore, the sequencer 11)
This signal performs sequential control and outputs cycle operation signals to various motors (1) to control the machine body. Also,
The sequencer (11) determines the completion of the operation based on the signal from the external detector (7) and sends a completion signal to the controller 9.
, the thumper repeats the above-mentioned operations and continuously controls the machine body. In addition, excluding this control operation,
If it is necessary to change various displays or execution programs, you can do so using the computer's display or keyboard.

Generally, when using high-level words, it takes a long time to execute the calculation, but in the present invention, the cycle operation of the machine body is controlled by the sequencer (6), so there is no interruption during the control operation. Since the control operation becomes free and calculation operations can be performed in parallel during the control operation, a long calculation execution time can be reduced.

In the above embodiment, the sequencer operates in cycles, but this may be controlled for each operation of each part, or a controller other than the sequencer may be used to achieve the same effect as in the above embodiment. As described above, according to the present invention, the machine control section and the calculation section are provided separately, and each piece of software is made independent, so that the software is simplified and can be easily created. In addition, it has the effect of being able to flexibly respond to changes in the software. Furthermore,
Since the calculation section can operate independently of the operation of the machine control section,
It also allows the use of high-level languages that require a lot of calculation time, and has the effect of making handling easier.

[Brief explanation of drawings]

Figure 1 is a plot diagram showing a conventional control calculation system.
Figure 2 is a software configuration diagram of the coffin 1 drawing system, Figure 5 is a plotter diagram showing a control calculation system according to an embodiment of the present invention, and Figure 4 is a software configuration diagram of the system. (1)...Motor (7)...External detector (10
)... Arithmetic unit (hersonal computer) (]1)...
W2 ha control unit (sequencer) In the figures, the same reference numerals indicate the same or equivalent parts.

Claims (2)

[Claims] (1) Periodically receives a machine operating state detection signal from an external detector and calculates the optimum state of the machine for the next process,
In a machine control calculation system that controls the operation of the machine based on the calculation 1L, a calculation unit that performs the calculation;
and a machine control section that controls machine operation based on the computed value thereof, and is characterized in that the computing section and the machine control section are independent of each other. (2) The control of the machine according to claim 1, characterized in that a personal computer is used as the arithmetic unit, a sequencer is used as the m unit on the machine side, and a high-level language can be fully used. calculation system.