JPH09264957A - Method for setting distance data for ultrasonic level relay - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to simplify and reduce in size a component constitution by pushing pushbuttons at the set positions of rotary dip switch for setting various distance data, and setting various distance data. SOLUTION: When upper limit distance setting is, for example, 123m, the position of an arrow of a dip switch 10 is initially set to A. Then, a pushbutton switch 11 is pressed, display LED 12 of numeric value of 100-th order is lit, and the numeric character of the order can be set. Thereafter, when the switch 10 is set to '1' and the switch 11 is pushed, LED 12 of 100-th order is lit for 2sec, and then display LED 13 of 10-th order is lit instead of the LED 12 of the 100th order. Further, when the switch 10 is set to '2' and the switch 11 is pressed, display LED 13 of 10-th is lit for 2sec, and then a display LED 14 of one-th is lit instead of the LED 13 of the 10-th. When the switch 10 is set to '3' and the switch 11 is pushed, the LED 14 is lit, and then the LEDs 12, 13 are lit instead of the LED 14. Thus, the number of one-th is set, and the upper limit distance is set to 123m.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved method of setting distance data of an ultrasonic level relay for measuring distance.

[0002]

2. Description of the Related Art A variety of data setting methods, for example, a plurality of distance data setting methods in ultrasonic level relay, are used in the form of a program function with the spread of microcomputers. The setting and the confirmation after the setting are performed. In that case, for example, a mode changeover switch for setting the upper limit distance, a switch for adding and subtracting set values, and four switches for setting confirmation are required. In order to reduce the size of the distance data setting device, it is necessary to consider a simple method of component construction such as reduction of setting switches.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a distance setting method having the simplest possible component construction from the viewpoint of miniaturization and operability of an ultrasonic level relay.

[0004]

Means for Solving the Problems A rotary DIP switch for setting various distance data, and various distance data are set by pushing a push button at each setting position of the rotary DIP switch. It is realized by a program process of a microcomputer including a display LED for confirming the setting, a flow for interrupting various distance data, and a main flow for confirming after setting the distance data.

[0005]

According to the present invention, it is possible to obtain a method of setting a plurality of distance setting data with a simple component structure and at low cost.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 10 is a rotary dip switch for setting a plurality of distances such as upper and lower limit distance setting and upper and lower limit alarm distance setting. Is a push button switch to confirm, 12 is 1
Numerical value of 00 place, 13 is numerical value of 10th place, 14 is 1
It is a display LED for confirming the setting of the numerical value of each place. Reference numeral 15 denotes a microcomputer, which executes an interrupt process for various distance data and a process for confirming after setting the distance data.
The meaning of each setting position of the rotary dip switch 10 is as follows. 0 to 9 are data setting numerical values, A is data upper limit distance setting, B is data lower limit distance setting, and C is data.
Set the upper limit alarm distance for data, and D for the lower limit alarm distance for data.

A setting method when the distance is actually set will be described. For example, when the upper limit distance setting is set to 123 m, first the rotary dip switch 1
Set the position of the 0 arrow to A. When the push button switch 11 is pressed, the numerical value of the 100th digit is displayed on the display LED for confirmation.
12 lights up and the number of 100th place can be set. Next, set the rotary dip switch 10 to 1,
When the push button switch 11 is pressed further, the 100th display LED
12 blinks for about 2 seconds, and then the 10th display LED 13 lights up instead of the 100th display LED 12. 1 above
Numerical value of the 00th place is set.

Next, when the rotary dip switch 10 is set to 2 and the push button switch 11 is pressed, the display L of the tens digit is displayed.
The ED13 blinks for about 2 seconds, and then the 1st display LED 14
Lights up instead of the 10th display LED 13. 1 above
The number of 0 is set.

Next, when the rotary dip switch 10 is set to 3 and the push button switch 11 is pressed, the display LED 14 blinks for about 2 seconds, and then the 100th display LED 12 and the 10th display LED 13 are the 1st display LED 14. Lights up instead of. The first digit is set, and the upper limit distance setting is 1.
It is set to 23m. Distance setting is displayed in the distance setting L
Confirmed by ED lighting. To confirm the setting state and setting value of the upper limit distance setting, set the rotary dip switch 10 to A, the LED 14 lights up, and if set in the 100th position, the LED 12 lights up and the rotary dip If the switch 10 is set to 1, since the 100th state is set to 1 in this case, the LED 14 is turned on. Next, the push button 11 is pressed, and the tenth state is similarly confirmed. The difference in scale is made by pressing the push button 11, and the first place state is also made in the same manner.

The lower limit distance setting, the upper limit alarm distance setting, and the lower limit alarm distance setting can be set and confirmed in the same procedure as above by setting the positions of the arrows of the rotary dip switch 10 to B, C and D, respectively. .

Program processing by the microcomputer 15 for setting the above-described distance setting will be described. FIG. 4 shows that the data distance setting state and numerical values are set by the rotary dip switch 10 and the push button switch 11 is pushed,
It is a flowchart showing the interrupt program processing of the microcomputer 15 to be determined.

First, at step 201, it is confirmed whether the rotary dip switch 10 is at A and is at the upper limit distance setting position. When the push button switch 11 is pressed, the 100th position flag is set in step 206, and the upper limit distance setting position is set to the 100th position. Then step 205
Then, it is confirmed whether or not the rotary dip switch 10 is set to 0-9. If it is any of 0 to 9, the push button switch 11 is pushed to proceed to step 210, and it is reconfirmed whether the setting position of the rotary dip switch 10 is at the upper limit distance setting position A or not. To do.

If it is at the upper limit distance setting position, the push button switch 11 is pressed to check in step 211 whether or not the distance setting position is at the 100th position. If the distance setting position is in the 100th position, the data in the 100th position is stored in step 212, the 10th position flag is set, and the process returns to the step before 201.

Then, in the same route as described above, step 210
After passing through, the process proceeds to step 213, where the push button switch 11 is pressed to confirm in step 213 whether or not the distance setting position is in the 10th position. If the distance setting position is in the 10th position, the data in the 10th position is stored in step 214, the flag in the 1st position is set, and the process returns to the step before step 201.

As in the case described above, even when the distance setting position is the first position, by pushing the push button switch 11,
At step 215, it is confirmed whether or not the state of 1 exists. If the distance setting position is in the first position, step 21
At 6, the data in the 1st place is stored and the flag in the 100th place is set. As a result, all data at the rotary dip switch 10 at the upper limit setting position is stored.

Next, at step 202, it is confirmed whether the rotary dip switch 10 is at B and is at the lower limit distance setting position. When the push button switch 11 is pressed, step 20
At 7, the 100th state flag is set, and the lower limit distance setting position is set to the 100th state. Next, the routine proceeds to step 205, where it is confirmed whether or not the rotary dip switch 10 is 0-9. Then, if any of 0 to 9 is pressed, the push button switch 11 is pressed to perform step 21.
Proceeding to 0, it is confirmed again whether the setting position of the rotary dip switch 10 is at the upper limit distance setting position A or not.

In this case, since it is the lower limit distance setting position, the routine proceeds to step 217, and it is again confirmed whether the setting position of the rotary dip switch 10 is the lower limit distance setting position B or not. If it is the lower limit distance setting position, the same program processing as in the above-mentioned steps 211 to 216 is performed.

Hereinafter, step 203 is also performed for the data setting in the upper limit alarm distance setting and the lower limit alarm distance setting.
From step 204 to step 218 and from step 204 to step 219, the same program processing as described above is performed.

Program processing by the microcomputer 15 for reconfirming the set data will be described. FIG. 3 is a flowchart showing the program processing of the microcomputer 15 which is confirmed by pressing the push button switch 11 with the data set by the rotary dip switch 10.

First, in step 101, it is confirmed whether or not the rotary dip switch 10 is at A and is in the upper limit distance setting position. If the rotary dip switch 10 is at A and is at the upper limit distance setting position, the process proceeds to step 105, the 1st display LED 14 lights up, and then step 10
Proceed to step 6 to check whether the 100th position is set. If it is set in the 100th state, the process proceeds to step 109 and the LED 12 is turned on. When the rotary dip switch 10 is rotated one by one from 0 to 9, for example, in this case, the 100th state is set to 1, so the LED 14 lights up when the arrow of the rotary dip switch 10 is at the position 1. The state is continued, and if the 100th state is not set to 1, the LED 14 is turned off. Next, when the push button 11 is pressed, the tenth state can be confirmed.

To confirm the 10th state, the process returns to the step 101, the process proceeds to the step 105 and the step 107.
To step 110, the program processing proceeds in the same manner. Hereinafter, the confirmation of the first-ranked state is performed in the same manner from step 108 to step 111.

Whether the rotary dip switch 10 is at the lower limit distance setting position at B, whether it is at the upper limit alarm distance setting position at C, and whether it is the lower limit alarm distance setting position at D is also step 102. , 103,
The same reconfirmation as described above can be performed for 104.

As described above, a microcomputer having a program consisting of a flow chart for confirming after setting the data and a flow chart for performing an interrupt process for setting the data is constructed by a rotary dip and push buttons. By performing setting and confirmation by operation, an ultrasonic level relay distance setting method having a simple component configuration can be obtained.

[0024]

As described above, it is possible to obtain a method for setting distance data for ultrasonic level relays which is inexpensive, has a simple component structure, and is miniaturized.

[Brief description of drawings]

FIG. 1 is a diagram showing an appearance of the present invention.

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

FIG. 3 is a flowchart of a microcomputer for confirming a setting state of distance data according to the present invention.

FIG. 4 is a flowchart showing the interrupt processing of the microcomputer for setting the distance data according to the present invention.

FIG. 5 is a flowchart showing the interrupt processing of the microcomputer for executing the distance data setting of the present invention.

[Explanation of symbols]

 10 Rotary Dip Switch 11 Push Button 12 Display LED 13 Display LED 14 Display LED 15 Microcomputer

Claims (1)

[Claims] 1. A digital setting means for setting a plurality of distance setting states and distances, an operating means for confirming the distance setting state and the distances set by the digital setting means, and a setting and confirmation of the distance setting state and the distance set value. Distance data in the ultrasonic level relay, further comprising display means for displaying the distance setting state and program means for confirming and confirming the distance setting state and the distance set by the digital setting means by the operating means. Setting method.