JPH0344703A - Digital signal processor - Google Patents

Abstract

PURPOSE:To set a control subject without using the digital input (Di) by preparing a subject specifying memory and selecting a prescribed sequence program in accordance with the control subject specified by the subject specifying memory. CONSTITUTION:A programmable controller (PC) 10 contains a PCRAM 14, and many sensors like a limit switch, etc., are connected to the Di. Then a device type and the presence/absence of an option are designated and inputted via a data input device 13 and then stored in a RAM 8. The data written in an address X of the RAM 8 are transcribed to an address Y of the PCRAM 14 and stored there. Thus a control subject is specified and a prescribed sequence can be carried out. As a result, the device types and the options can be switched in a single sequence without increasing the number of Di points to an NC device and a sequencer 4.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention provides an n! I do it.

(Prior Art) In recent years, for example, in multi-tasking machines, each 811 is controlled using a digital signal processing device such as an NC controller or a sequencer using a digital signal shared by both machines. It's starting to look like this. In addition, various optional mechanisms have come to be attached to various machines in order to accommodate FMS and the like.

Therefore, if many sequence types are created for different models and the presence/absence of options, manufacturing and maintenance L management becomes troublesome. In order to select an optional mechanism and specify a target to be controlled by the digital signal processing device, a target selection switch is connected to the digital IT device.

As an example, FIG. 5 shows two digital input units (D1 cartons 2, 3) each having 32 input points connected to an NCI installation or sequencer 1, and various sensors 81, S2... While inputting the signal of 1
At the last Di of the second card 12 and the first 1]i of the second card 3, there are two switches (terminals) T1 for machine selection and option presence/absence setting. This is an example in which T2 are connected to each other.

In this example, as shown in FIG.
In Step 4, determine the D1 status of No. 32 and No. 33, and in Step 6
At steps 02, 603 and 605, 606, models A and B and option 1.2 are set, and a predetermined sequence is executed.

(Problem to be Solved by the Invention) However, in the conventional digital signal processing Ha as described above, the switch for selecting the model, the presence or absence of options, etc. is input as a Di signal. There were problems such as requiring an additional address D1, increasing the size of the control box, and increasing costs.

In particular, when adding target setting switches in a state where the D; score is at the maximum as shown in FIG. 5, it becomes necessary to add one more Di card.

On the other hand, in recent years, there has been a tendency for the number of sensors in processing machines to increase further in order to make machines more intelligent and increase added value.
There is a desire to reduce the number of points by even one point.

Therefore, an object of the present invention is to provide a digital signal processing device that can select a model and options and set a control target without using Di.

[Structure of the Invention] (Means for Solving the Problems) A digital signal processing device of the present invention that solves the above problems inputs a large number of digital signals from various sensors and performs predetermined sequence processing to operate a machine. A digital signal processing device to be controlled is provided with an object specifying memory for specifying a control object such as the model and presence/absence of options, and a sequence selection means for selecting a predetermined sequence program according to the control object specified by the memory. Features.

(Function) The digital signal processing device of the present invention includes an object specifying memory for specifying the υ control object such as the model and the presence/absence of options, and a sequence selection means for selecting a predetermined sequence program according to the control object specified by the memory. By inputting data on the model and the presence/absence of options into the memory using a manual data input device (MDi) or an NG tape, it is possible to specify the control target and execute a predetermined sequence.

(Example) A detailed explanation of the present invention follows.

FIG. 1 is a block diagram showing a digital signal processing device according to an embodiment of the present invention as an example of an NC device or a sequencer.

In the figure, the NC device or sequencer 4 includes a bus 5, a CPU 6, a ROM 7, a RAM (main RAM) 8, an input section 9, and a programmable controller (PC) 10SD.
i 11. Digital output device? ffi (D
O) It is constructed by connecting 12.

The input section 9 is connected to a data input device 13 such as an MDi or a tape reader (TPR).

The PC 10 has a built-in RAM (PCRAM) 14. A large number of sensors such as a limit switch IS are connected to the Di. A large number of actuators such as solenoids are connected to the DO.

A predetermined address X is stored in the main RAM 8.

The model types A and B and the presence/absence of options C and D input from the data V:, a13 are set in X+1...X+n.

In the PCRAM 14, the contents of the addresses X, X+1...Xn of the main RAM 8 can be transferred to predetermined addresses Y, Y+1...

FIG. 2 shows a method for setting a controlled object in the digital signal processing device having the above configuration.

In FIG. 2, in step 201, the model and presence/absence of options are designated, and when this is input from the data input device 13 in the smartphone 202, it is stored in the main RAM 8 in step 204 via step 203.

Therefore, in step 205, address
By transcribing and storing the data written in the PCRAM 14 at address Y, the controlled object can be specified and a predetermined sequence can be executed.

As shown in FIG. 3, the NC device or sequencer reads the data at address X of the main RAM 8 in step 301, and increments the address in step 304 until it determines that At step 302, data is written to address Y of PCRAM14.

Then, as shown in FIG.
01 and 404 are PCRAMI 4 address Y, Y+1.
. . . By sorting out the data contents written in y+n, steps/102, 403, and step 405.
At 406, a predetermined sequence is executed depending on the controlled object.

As described above, in this example, the control target can be set by writing data for target setting into the main RAM 8 and transcribing it to the PCRAM 14.

Therefore, in this example, since the sequence processing is not switched by one i input, it is sufficient to prepare the number of Di points corresponding to the number of input points of the machine. Also, Di's type 11! Since the IJ change can be done by software rather than by hardware, it is very easy to understand and is easy to understand due to the variable pull system, and work errors are less likely to occur. Furthermore, since no hardware configuration is required, costs can be reduced.

In the above example, the contents of main RAM 8 are transferred to PCRAM 14, considering that there is generally an area in main RAM 8 that can be accessed by the PC.
It is also possible to write directly to l4.

The present invention is not limited to the above embodiments, but can be implemented in various ways by making appropriate design changes.

[Effect of the invention 1 As described above, the present invention is a digital signal processing device as described between the boxes of the claims.
Without increasing the 0 points for C devices and sequencers,
Models and options can be changed in one sequence.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an NC device or sequencer according to an embodiment of the present invention, FIG. 2 is a flowchart showing a target setting method, FIG. 3 is a flowchart of processing performed by the NC device or sequencer, and FIG. 4 is a flowchart of processing performed by a PC, Figure 5 is a 10-step diagram showing a conventional NC device or sequencer, and Figure 6 is a 7-step diagram of a conventional target setting method.
0-ch 1/-t. 8... Main RAM 14... PCRAM

Claims (3)

[Claims] (1) In a digital signal processing device that controls a machine by inputting a large number of digital signals from various sensors and performing predetermined sequence processing, there is an object identification memory that identifies the object to be controlled, such as the model and the presence or absence of options. 1. A digital signal processing device comprising: sequence selection means for selecting a predetermined sequence program according to a control target specified in a memory. (2) In the digital signal processing device according to claim 1, the digital input device that inputs the digital signal is configured by arranging in parallel a plurality of input units capable of inputting a plurality of digital signals. Features of digital signal processing equipment. (3) The digital signal processing device according to claim 1, wherein the device is composed of an NC device or a sequencer, and the sequence selection means is formed by a programmable controller of these devices. .