KR930010390B1 - Error code display device for abnomality or the like of instrument - Google Patents

Abstract

Some makers use the different symbols for representing the error code. And, the Micom controlled devices manipulate control action according to the components of a system, and display the characteristic code (error code) in the displaying device. The control system includes a microcomputer (20), a transfer switch (1) which alternates the specified input port, 1st, 2nd code isolated memories (11),(12) which have two error code groups in the ROM. 1St code isolated memory (11) addresses from K-address to K+14 address in the ROM, and 2nd code isolated memory (12) addresses from K+15 address to K+29 address in the ROM. 1St and 2nd code memories have English and number codes.

Description

Error code display device such as a malfunction

1 is an explanatory diagram of a control circuit of a preferred embodiment of the present invention.

2 is a flowchart for explaining a control program written in a microcomputer constituting a control device.

3 is an explanatory diagram of the configuration of the code storage memory.

* Explanation of symbols for main parts of the drawings

11: first code storage memory 12: second code storage memory

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an error code display apparatus for displaying an abnormality of an apparatus, and more particularly, an apparatus for displaying an erotic code by using a representation form that is different for each dealer of a different apparatus, such as a plurality of sales companies. It relates to an error code display device such as an error.

In hot water heaters, heaters, and even air conditioners, display panels for displaying time and temperature are provided on the operation panel.

In recent years, microcomputers (abbreviated as "microcomb") have been used to control these mechanisms. In such microcomputer-controlled mechanisms, the control operation is performed while confirming the operation of each part. A specific code corresponding to the above (hereinafter referred to as "error code") is displayed on the display device.

However, the aforementioned mechanisms are rarely transferred to the hands of general consumers through a plurality of different distribution paths. In this case, the mechanisms of the dealers of the sales companies existing in the distribution path are independently set for each handler. In many cases, a mechanism in which error code display is enabled is desired. This is because it is preferable that the same error is displayed for each mechanism handled by the handling agent even in the preparation of the instruction manual or the like.

It is conceivable to manufacture various kinds of mechanisms having different types of error code memories in response to the above-mentioned requests. In this case, however, it is necessary to produce a small amount of many kinds of apparatuses, and the manufacturing efficiency is very low. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and the display unit applies a specific error code signal corresponding to the above-mentioned abnormalities selected from the code storing means for storing a plurality of error codes corresponding to the abnormality of the mechanism to the display unit. In a display device for displaying an error code, it is a task to display an error code used by each handler even if a different kind of mechanism is not manufactured for each handler.

The technical means of the present invention for solving the above problems is provided with a plurality of code storage means and a switching means for selectively matching any code storage means to the display unit, and different representations for each of the code storage means By employing the method, a plurality of systematic error code groups are separately stored, and each of the error codes in one code storage means corresponds to each of the error codes in the other code storage means separately.

The technical means configured as above apply as follows.

When it is necessary to display an error using the error code stored in the specific code storage means, the switching means switches so that the specific error code storage means corresponds to the display portion.

In this state, when a failure and an abnormality occur in each part of the mechanism, the corresponding error code is displayed on the display unit as in the conventional case described above, but the specific code storage means is associated with the display unit by the switching means. The error code selected from the specific code storage means is displayed on the display unit. In other words, an error display suitable for a handler using an error code according to a specific expression method stored in the specific code storage means can be made.

When the switching switch is switched to another code storing means, the error code in the switched new code storing means is displayed on the display section according to the abnormality of the mechanism as described above, and an error display suitable for the instrument operator using the error code is shown. Becomes possible.

Therefore, the present invention has the following unique effects.

Since the error codes employing different expressions can be displayed separately by simply switching the switching means, different mechanisms can be produced for each handler even when it is necessary to display a different type of error code for each of the dealers. There is no need.

Therefore, it is possible to solve the irrationality that requires the production of many kinds of mechanisms in small quantities, thereby improving the production efficiency.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a case where the present invention is applied to an operation device of a bath tub in which a hot water heater is mounted, and the display portion 3 is provided in an operation panel 31 connected to the mechanism A by a wire.

The operation panel 21 is provided with an operation switch 21 and a reset switch 22.

Moreover, the control apparatus 4 of this mechanism is comprised from the microcomputer 20 etc., The switching switch 1 as a switching means is connected to the specific input port of the microcomputer 20, and the microcomputer 20 is connected. In the ROM therein, first and second code storage memories 11 and 12 which respectively store two types of error code groups are secured.

Then, either one of the first and second code storage memories 11 and 12 is changed depending on whether the input port of the microcomputer 20 to which the changeover switch 1 is connected is ＂+＂ or ＂-＂. The control program in the microcomputer 20 determines whether or not it is necessary to display an error to be described later.

The first and second code storage memories 11 and 12 are configured as shown in Fig. 3, and in this embodiment, the ROMs from address K to address K + 14 in the microcomputer 20 are shown. The memory unit constitutes the first code storage memory 11. The second code storage memory 12 is formed of a memory section from address K + 15 to address K + 29.

The error code stored in a specific order in the first code storage memory 11 and the error code in the second code storage memory 12 stored in the same order as this error code indicate the same mechanism abnormality. It is supposed to be.

In this embodiment, the first and second code storage memories 11 and 12 store in advance two types of error codes of two types of expression methods used separately by two types of apparatus handlers. An error code for displaying an English letter is stored in the memory 11, and an error code for displaying a number is stored in the second code storage memory 12, respectively.

In the present embodiment, the first and second code storage memories 11 and 12 correspond to the above-described code storage means.

Moreover, the output of the flame detection circuit 69 for baths which monitors the output of the thermocouple 65 for bath burners, the output of the flame detection circuit 19 for hot water which monitors the output of the thermocouple 54 for hot water burners, and The outputs of the abnormality detection circuits 58, 59, 67 for detecting abnormalities of the exhaust fan 54 and the burner igniter ignitors 56, 66 are applied to the control device 4.

Next, the mechanism operation of the embodiment will be described according to the flowchart of FIG. 2 written in the microcomputer 20. FIG.

First, in this embodiment, in the state of FIG. 1 in which the switching switch 1 is switched to the + + side, an error code of an alphabetic character in the first code storage memory 11 is displayed when an error described later occurs.

Thus, when notifying the control device 4 by inserting a power outlet or the like not shown, first, the output of the switching switch 1 is judged, and if the output is ＂+＂ (state of FIG. 1), the Frag F is released. Set it to 1 ms and, in the opposite case, set the flag F to 0 degrees (see references (71)-(73)).

Next, by monitoring the state in which the operation switch 21 is turned on and checking the output of the water level sensor 63 when the operation switch 21 is turned on, the bath water to the water filling completion level (bath level suitable for bathing) in the bathtub 6 is examined. It is judged whether it is filled (see the steps 80 and 81), and when the bath water is already present in the bath 6 up to the filling level, whether or not the temperature in the bath 6 is suitable for bathing. Judgment is made (see reference numeral 70), and if it is below the temperature, the operation of heating the inside of the bath 6 is started until the bath water is heated to the temperature.

That is, the bath gas valve 64 is opened, the bath burner 41 is burned, and the forced circulation pump 9 is driven to start the additional heating operation (see step 82).

The water temperature sensor inserted into the additional heating circuit 62 is continuously monitored while checking whether the bath tub burner 41 is turned off by a gust light while checking the output of the flame detection circuit 69 for the bathtub during this additional heating. The additional heating is continued until the inside of the bathtub 6 reaches a certain temperature while checking the output of (60) (see steps 83 to 85).

When the bath burner 41 is suddenly extinguished by a signal from the bath tub flame detection circuit 69 during this additional heating, the apparatus is stopped.

Next, after checking Frag F, and it is determined that Frag F is ＂1＂ and the switching switch 1 is set on the ＂+＂ side, an English letter indicating that the bath tub burner 41 is suddenly extinguished. An error code for display (e.g., "A") is taken out from the first code storage memory 11 shown in FIG. 3 and displayed on the display unit 3. FIG.

Then, by checking the error code book (individually written by a specific agent) for displaying the English letter attached to the apparatus, the apparatus operator suddenly extinguishes the displayed error code ＂A＂ bath tub burner 41. You can check that.

On the other hand, when checking the contents of the above-mentioned Hug F, if it is determined that the Hug F is "0" and the selector switch 1 is switched to the "-" side (of an operator who needs to display an error code) Mechanism) causes the display unit to display '0' stored for the first time in the second code storage memory 12. FIG. In this case, it is possible to know that the bath tub burner 41 is suddenly extinguished by examining the error code book used by the operator using the number as the error code. That is, by simply switching the switching switch 1, either of the two types of error codes can be displayed, and the error code display for each operator of the mechanism can be made possible.

Subsequently, when the reset switch 22 is inputted, the mechanism control returns to the step 80 of monitoring the operation of the operation switch 21.

Next, when it is confirmed that no bathing water is present in the bath 6 when the above-described determination step 81 is executed, the microcomputer executes the steps 90-93 of the same drawing. And the water filling operation which supplies a predetermined amount of hot water to the bathtub 6 is started. When the flame detection circuit 19 for hot water gives an abnormal signal during the filling, the contents of the Frag F are examined as described above, and when the Frag F is # 1, The error code is taken out from the first code storage memory 11 and displayed on the display unit 3.

In addition, in the flowchart of FIG. 2, only the case where the hot water flame detection circuit 69 detects an abnormality is described, but the abnormality such as the burner ignition igniters 56 and 66 and the exhaust fan 53 is detected. In this case, the error code of the English letter or the numerical error code corresponding to the above error may be displayed separately according to the state of the switching switch 1. The number of error codes that can be displayed can be set by the number of memories constituting the first and second code storage memories 11 and 12.

In addition, although the switching switch 1 is used as a switching means in the said embodiment, if it is connected to the specific port of the microcomputer 20, you may use other types of switches, such as a jumbo switch. In addition, the specific port of the microcomputer 20 may be connected to earth wiring or to a V + pole.

In the above embodiment, two types of error codes are displayed, but three or more types of error codes having different representations may be displayed.

In this case, a plurality of dip switches and the like are connected to a plurality of bits of the microcomputer 20 input port, and various error codes of different representation methods stored in the ROM are displayed according to the combination state of the dip switches ON and OFF. do.

Claims (1)

A display device in which a specific error code signal corresponding to the abnormality or the like taken out from a code storing means for storing a plurality of error codes corresponding to an abnormality of a mechanism is applied to a display unit, and the display unit is configured to display the error code. In addition to providing a plurality of cord storage means, a switching means (1) for selectively attaching arbitrary code storage means (11, 12) to the display unit is provided, and in each of the cord storage means (11, 12) The mechanism is characterized by storing different systematic error code groups by employing different representation methods, and each of the error codes in one code storing means individually corresponds to each of the error codes in each other storing means of the other code. Error code display device such as error.