JPS61273619A - Data input circuit - Google Patents

Abstract

PURPOSE:To simplify the constitution of a data input circuit by storing the data set by a prescribed switch circuit used for arithmetic operations in response to the output of a selection switch and therefore using the switch circuit in common with another switch circuit which sets other data. CONSTITUTION:A sensor circuit 18 which detects the state of an external device 11, a switch circuit 19 containing plural switches for selection of operation modes and a switch circuit 21 which delivers 2 pieces of digital data are connected to an input circuit 17 of a computer circuit 10. The setting contents given from the circuit 21 are supplied to a CPU 13 via the circuit 17 and this set value is written to a RAM 15. While a ROM 14 and an output circuit 16 are connected to the CPU 13, and the output given from the circuit 16 is supplied to the device 11 and a display device 12. Then the data set by the circuit 21 decided previously for use of arithmetic operations are stored in the RAM 15 in response to the output of the circuit 19. Then the circuit 21 is used in common with another switch circuit which sets other data. Thus the constitution of a data input circuit is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data input circuit in a computer device, and particularly relates to an improvement of a data input circuit constituted by switches and the like.

[Conventional technology]

FIG. 4 is a block diagram showing a conventional data input circuit, in which 10 is a computer circuit, 11 is an external device controlled by a control signal A output from the computer 10, and 30 is a signal output from the computer circuit 10. This is a display device that performs display according to display signal B. The computer circuit 10 includes a central processing circuit (hereinafter referred to as c).
(referred to as PIJ) 13, a program for operating the CPU 13, and a preset program 7. = Read-only memory (hereinafter referred to as ROM) 1 in which data is stored
4, and a random access memory (hereinafter referred to as RAM) that temporarily stores data processed by the CPU 13.
15, an output circuit 16 that supplies the control signal A and display signal B issued from the CPU 1'3 to the external device 11 and the display 12, and an input circuit 17 that handles signals supplied from the outside to the CPIJlg. There is. 18
1 is a sensor circuit that detects the operating state of the external device 11;
9 is a switch circuit, which is device-specific data used to operate the external device 11 in an optimal state, or data for selecting an operation mode, which cannot be stored in the ROM 14 in advance. Used to set. This switch circuit 19 is
For example, a hexadecimal rotary switch SA, ~SA, which has an encoding function that outputs a 4-pit binary signal.
4, the output signal of which is supplied to the input circuit 17 of the computer circuit 10. 20 is a switch circuit for setting special data other than the data set in the switch circuit 19, and is composed of a plurality of switches S81 to SBn similar to the switch circuit 19, and its output signal is supplied to the input circuit 17. J Two sea urchins.

In a circuit configured in this way, the normal operation is as follows:
When the power is inserted, the program stored in the ROM 14 (ζ is read out and supplied to the CPIJlg. Next, the output signals of the sensor @ 1418 and the switch circuit 19 are supplied to the CPIJlg via the input circuit 17 1). Then, the CPIJlg calculates this input data according to the program, temporarily stores the result in the RAM 15, and the necessary data is outputted from the output circuit 16 to the external device @ 11 as a control signal A, and the result is temporarily stored in the RAM 15. The device 11 performs a predetermined operation in response to this.

Next, during adjustment and maintenance during installation, the external equipment 1
The code is used to verify that the specified operations in step 1 are being executed reliably.
In order to check the operation in the emitter circuit 10, especially the contents of the RAM 15, or to confirm the operation r4 for special interlocking, a special signal is input 1 instead of the sensor circuit 18.
7 I need to do it.

At this time, the program for executing the desired operation should be stored in ROM 1.4 in advance. The required data can be easily set using switches S8+ to Son of the switch circuit 20. Become Otsu. For example, when displaying arbitrary data stored in the RAM 15, select the data display mode of the RAM 15 using the switch S6°, display it using the switches SB2 to Sos, or change the address of the data, for example, by selecting the data display mode of the RAM 15. 8C
Just set it as J. In addition, when inputting a special signal instead of the sensor circuit 18, use the switch S81 to select a mode 17 that kills the input of the sensor circuit 18.
After that, special data can be set using the switch 38θ.

[Problem that the invention seeks to solve]

Since the conventional data input circuit is configured as described above, the switches 381 to SB n of the switch circuit I4520
is used only during installation adjustment and maintenance, and
They are never used during normal operation, and are a major factor in increasing product costs.

For kneading, a device has been proposed that has only a data input function and is used by connecting a T-commonitor device only when necessary, but it is cumbersome to carry the monitor device and is expensive. It has problems such as:

This invention was made in order to solve the above-mentioned problems.In order to input the data necessary for installation, adjustment, and maintenance, it is necessary to use a large number of dedicated switch circuits and data on mobile phones that can be attached and detached. It is an object of the present invention to provide an inexpensive data input circuit capable of inputting special data as needed without using an input device.

[Means for solving problems]

A data input circuit according to the present invention includes a selection switch and a storage circuit that stores data set by a setting switch for normally used data according to the output state of the selection switch, and the data input circuit stores data stored in the storage circuit. By performing normal arithmetic operations using the existing data, the setting switch can be shared with a switch for setting other data.

[For production]

In the data input circuit of the present invention, the data set by the normally used data setting switch is stored and maintained in the memory circuit according to the output state of the selection switch, and normal calculations are performed using this stored data. By using this stored data, you can use the normal setting switch to set other data, that is, set special data, and perform normal calculations using this stored data. This is something that can be done.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 21 is a switch circuit composed of switches similar to switches S^1 to S^4, and is connected to the computer circuit 10 via an input circuit 17.

(,) and (b) in FIG. 2 show the inner bounds of R2M17 and RAMI 5, respectively, and show the relationship between atto 1/s and data.

FIG. 3 is a flowchart 1 showing a program written in advance in the ROM 14. First, when the power is turned on, initial settings are performed in step 50. In this initial setting, the data in RAMI 5 is set to "0", for example.
The output circuit 16 outputs an initial setting control signal for setting a predetermined value such as , initializing a circuit in the external device 11 , etc. to the external device 11 .

In the next step 52, the setting contents of the switch Sc of the switch circuit 21 are read through the input circuit 17. If the setting value is "0", the process goes to step 54, and if it is other than "O", the process goes to step 62. The set value is normally set to "0", and in step 54, the output signal of the sensor circuit 18 is read through the input circuit 17, and the RAM is stored at address 1000 in the RAM 15.
It is stored as M-0, and in the next step 56, the switch time 1 is stored as M-0.
The setting data of switches S^1 to S^4 of 819 are taken in via the input circuit 17, and are stored in RAM-1 and R of the RAM 150 predetermined address areas (1001 to 1004), respectively.
It is stored in AM-2, RAM-3, and RAM-4.

In the next step 58, a predetermined calculation using the data in RAM-0 to RAM-4 is executed, and the data resulting from the calculation is output to the external device through the output circuit 16 as an output signal to the external device 11. .

Furthermore, in step 60, the data of this calculation result is displayed on the display 12 every time it is output, so that it is possible to view the control signal output from the computer circuit 10 to the external equipment. When this step 60 is completed, the process returns to the first step 52 and the same process is repeated.

Now, when the switch Sc is set to 1, the process proceeds from step 52 to a determination step 62, and then proceeds to step 64, where the setting value of the switch circuit SA+ is written to RAM-0 of the RAM 15, and then proceeds to step 58. return.

As a result, in the calculation of step 58, the data set by the switch SA1 is used instead of the output signal of the sensor circuit 18, so it is possible to set the external device M11 to any special state using the switch SA1.

Furthermore, when switch Sc is set to "2", determination step 6
Step 2 then proceeds to step 66, where the output of the sensor circuit 24 is stored in the RAM-0 as in step 54, and the process proceeds to the next step 68. Here, the address inner range of the ROM 14 or RAMI 5 indicated by the data set by the switch S^+jS^2jS^3jSA4 of the switch circuit 19 is output to the display @12 through the output circuit 16. As a result,
For example, switch 5A1p”A□p SA3p”A
If the setting values of 4 are each "0.0°0.3",
ROM14 address [0003J data ROM-3
The switch settings are ri and o, respectively.
,o.

1'', the internal range of the data RAM-1 at the address [100IJ of the RAM 15 is output to the display 30, and the data in any memory is displayed at the switches SA, ~SA.

The address setting is performed using the data in RAM-0 to RAM-4, and the data resulting from the calculation is output to the external device M11. Here, the switches S^1, SA2, SA3, and SA4 of the switch circuit 19 have been changed from the initially set device-specific data and the data value for selecting the operation mode to other set values, but the switches S
In step 56, which was passed 17 before switching c, the set values of switches SA1 to SA4 are stored in RAM 15.
-1 to RAM-4, and these data are used in the calculation in step 58, so the calculation is executed without changing any normal settings.

After adjustment, maintenance, etc. are completed, return the set values of each switch in the switch circuit 19 to their original values, set the switch Sc to "0", and proceed to the normal step 54 in the determination step 52 of FIG. 3. The sensor signal is captured and each switch data of the switch circuit 19 is captured every arithmetic operation cycle, and even if the power is cut off, when the power is restored, normal operation is started immediately. can.

In this embodiment, the setting value of the selection switch Sc is r
ol, rlj. However, when other set values are set, for example "2", the stored value of switch circuit SA1 is displayed on the display, and when it is "3", the stored value of switch SA2 is displayed. By displaying the initial setting value stored in each switch of the switch circuit 19 according to the setting value of the selection switch Sc, it is possible to reliably return to the initial setting state of the switch. This eliminates the hassle of remembering initial setting values.

〔Effect of the invention〕

As described above, according to the present invention, data set using a predetermined switch circuit used for normal calculations is stored in the memory circuit according to the output state of the selection switch. This makes it possible to share this switch circuit with other general data setting devices, and along with this, a dedicated data setting switch or data input that can be detached from the control device for adjustment or maintenance. There is no need to provide a device, which has the effect of reducing the cost of the device.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing a data input circuit according to an embodiment of the present invention, Fig. 2 is a diagram showing the structure of data in the ROM and RAM shown in Fig. 1, and Fig. 3 is a data storage diagram in the ROM shown in Fig. 1. FIG. 4 is a block diagram showing a conventional data input circuit. 10. Computer circuits, 13..CPIJ, 14.
・ROM, 1 fi, RAM, 16-output circuit, 1
7. Input circuit, 18. Sensor circuit, 19. Switch circuit, 217. switch circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa (2 others) (＾) Figure 2 (b) No. 3m Procedural amendment (voluntary) Showa 64 7F430s 3, Person making the amendment Representative Moriya Shiki 4, Agent 5, Subject of amendment (1) Column 6 of Detailed Description of the Invention in the Specification, Contents of the Amendment (1) In the second line of page 4 of the specification, the phrase “When the power is inserted” has been amended to “When the power is turned on.” do. (2) On page 4, line 12 of the same page, the phrase [@adjustment and maintenance] is replaced with "Adjustment during installation and maintenance,
” he corrected. (3) On page 9, line 5: [Displayed each time it is output]
Toaru is corrected to ``It is output and displayed in display i#12.'' (4) In the 5th line of page 10, the phrase "address contents" is corrected to "address data contents." (5) On page 10, lines 9 and 10, “As the content,
” should be corrected to ``The content is...''. (6) On the 12th line of the same page jO, correct [Display@30J to ゛iDisplay@12J-. (7) On page 10, lines 13 to 14, [Switch...
...~RAM-4J [switch SAI~S]
By setting the address using A4, it is possible to view the address on the display 912. In addition, in the next step 70, RAM-0 to RAM
Correct it to -4J.

Claims (2)

[Claims] (1) A first switch circuit composed of a plurality of switches and outputting arbitrary digital data, a second switch circuit capable of outputting at least two or more predetermined values, and this second switch When the circuit outputs a predetermined value, it outputs the output value of the first switch circuit as it is, and
a memory circuit that holds and outputs the output value sent from the first switch circuit immediately before the change when the switch circuit changes to a value other than a predetermined value; and the first and second switch circuits and the memory circuit. A data input circuit comprising a plurality of input means to be connected. (2) The input means selects and takes in a predetermined external signal when the output value of the second switch circuit is a predetermined value, and when the output value of the second switch circuit is other than the predetermined value, the input means selects and takes in a predetermined external signal. 2. The data input circuit according to claim 1, further comprising a selection function for selecting a switch circuit output.