JPH0812003B2 - Combustion equipment control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion equipment control device used for combustion equipment such as an automatic water heater and a fan heater.
In particular, it relates to improvements for the integrity of data used for control.

[0002]

2. Description of the Related Art The above-mentioned control of a combustion device is performed based on various data. For example, there are set temperature data desired by the user, correction data for data obtained from various sensors, and time data for a device having a clock display. Recently, a control circuit for controlling combustion equipment is often composed of a microcomputer (hereinafter, simply referred to as a microcomputer), but conventionally, at least one kind of data among the above various data, for example, set temperature data, etc. With regard to the above, in order to retain the contents even when the power of the equipment is turned off, an external E
Some are stored in EPROM (electrically rewritable non-volatile storage means).

[0003]

However, in the conventional combustion equipment control device having such an EEPROM, there is no problem as long as the writing of data to the EEPROM is completed, but at the moment the data is being written. If a power failure occurs during that time, the data stored in the EEPROM will be different from the data intended for writing. Nevertheless, in the conventional combustion equipment control device, after the power failure is restored, the control circuit starts to operate.
When the data in the EPROM is read, it does not have a function of checking whether the data is correct. Therefore, erroneous control may be performed based on such invalid data.

However, for the sake of safety, even if a power failure occurs during the writing of data to the EEPROM, a method of forming a backup power source with a capacitor or a battery is disclosed in order to secure the power source for at least the time to finish writing all the data. It had been. However, according to this method,
For example, if it is simple data such as time data, the time required to write all the data will be short, but if it is all other data, the capacitor to be used will actually need to be considerably large and the space factor It is undesired and costly. If a battery is used, the cost will be much higher, and if the battery is a primary battery, it will be necessary for the user to manage the battery (replacement work will be required). It has to be equipped with a charging mechanism and becomes more expensive.

Further, the data normally stored in the EEPROM may be damaged by the disturbance, but the conventional combustion equipment control device cannot know the presence or absence of the disturbance, and there is no way to compensate the damage data.

In addition, in the past, there was no idea to classify the data to be handled according to the importance thereof and write it in the EEPROM while handling it differently. However, realistically, such classification is important. For example, if the data is room temperature, set temperature data such as hot water supply temperature, or time data to be displayed on the clock display unit, even if the data is a little different from the user's request or actual time, the user However, it is not data that would lead to a serious accident that must be absolutely prevented in terms of safety as a combustion device, such as incomplete combustion or a fire. It is also data that can be reset by the user, and discomfort can be easily resolved. On the other hand, for example, when the output of a flame detection sensor such as a thermocouple is amplified by an operational amplifier and then input to the control circuit, correction data for correcting the offset voltage of the operational amplifier, or air feeding to the combustion unit is used. The correction data regarding the supply fan motor, and the constraint data regarding the gas proportional valve current in the case of using gas as fuel are data closely related to safety, and therefore must be handled strictly.

However, in the past, since there was no device for storing the data in the EEPROM, such important data was treated as analog data and relied on analog measures such as the control circuit constantly monitoring the output voltage of the volume. . However, such a measure increases the number of parts in the control device, is prone to fluctuations, and is insufficient in terms of reliability.

In view of such a situation, the present invention has a possibility of being able to restore data damaged at that time due to a power failure during data writing, or data correctly stored but damaged due to noise or the like. In addition, we provide an inexpensive and highly reliable combustion equipment controller that can maintain data without using bulky or expensive backup power supplies such as large capacity capacitors and batteries, and important data is more important than other data. The main purpose is to provide a device having a higher maintenance function and capable of taking safety measures against the damage.

[0009]

In order to achieve the above object, in the present invention, first, a rewritable non-volatile storage means (also generally externally attached to a microcomputer) coupled to a control circuit (generally a microcomputer can be used). Data which can be stored in the EEPROM) are classified into at least first and second types. As described above, the classification can be generally performed according to its importance. Then, for the first type of data, two or more data areas independent from each other are set, and for the second type of data, a larger number of data than the number set for the first type of data is set. Set the area.
Therefore, if there are two data areas for the first type, there are, for example, three or more data areas for the second type. In the past, according to a very common idea, even if only one kind of data is stored, one data is stored in a single data area, and the structure is modified. On the other hand, when the data discriminating means is coupled to the control circuit and the data stored in the plurality of data areas of the above-mentioned first and second types of the non-volatile storage means are sequentially read out, the data discriminating means To determine the effectiveness of each individual. On top of that, the control circuit
With respect to each of the first and second types of data, the predetermined control operation using the data is performed only based on one of the data that the data determination means determines to be valid. In order to determine whether the data is valid or invalid by the data discriminating means, a keyword matching method known per se or, instead of this, a
Alternatively, in addition to this, discrimination according to the sum check principle can be performed.

Further, in the present invention, as a desirable mode satisfying the above basic structure, a rewritable non-volatile storage means for each of the first and second types of data as a result of the discrimination by the data discriminating means. Of the multiple data read from multiple data areas of, at least one of the data is invalid, but the rest is the data that stores the invalid data when it is determined to be valid. We also propose a controller that rewrites the data in the area with the data determined to be valid. However, regarding the second type of data, that is, the data in which the same data should be stored in at least three data areas in the rewritable non-volatile storage means, this data length itself is for controlling combustion equipment of this type. However, since it is not too long, a successive approximation method for each bit between these data may be adopted, and the other data may be rewritten by the data in which the most all bits are matched.

Further, in another aspect of the present invention, the initial value data is written in the read-only storage means coupled to the control circuit, and as far as the first kind of data is concerned, it can be rewritten as a result of the discrimination by the data discriminating means. When it is determined that all of the plurality of data read from the plurality of data areas of the non-volatile storage means are invalid, the control is configured to write the initial value data in the plurality of data areas of the non-volatile storage means. A device is also proposed. If a microcomputer is used for the control circuit, the read-only memory means can be a ROM built in the microcomputer. The keyword data and the like described above can also be stored in this ROM.

On the other hand, regarding the second type of data, a data write command operating section for instructing to store this in the rewritable non-volatile storage means, and the second type based on the operation of this operating section. Data change determination means for determining that the data of the second type has been set or changed, and as a result of the determination of the second type of data by the data determination means, the rewritable non-volatile storage means When it is determined that all of the plurality of data read out from the plurality of data areas regarding the two types of data are invalid, the data change determination means further provided as described above sets or changes the data of the second type. Unless determined, the control circuit stops the operation of the combustion equipment. After that, when the data change determination means determines the setting or change of the data, the control circuit causes the data communication operation determining means to determine the writing of the data relating to the second type of data, and the data communication means determines the non-volatile The newly set or changed data is written in the plurality of data areas corresponding to the second type of data in the storage means. The above-mentioned data change determination means added in this case can also be configured by a microcomputer, and the data write command operation unit is provided so that the user cannot operate it at least easily (that is, preferably, the manufacturer of this device). It can be configured with a manual switch etc.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In this embodiment, the control circuit 10 is a microcomputer
It is composed of 10. Further, the data communication operation determining means 12, the data communication means 13, the data discriminating means 14, and the data change discriminating means 16, which are used in this embodiment and can be individually configured as hardware, are also equivalently realized by the microcomputer 10. . Further, in the figure, internal data storage means 11
The volatile memory marked with is also the RAM attached to the microcomputer 10.
The read-only non-volatile storage means 15 may also be a ROM attached to the normal microcomputer 10. On the other hand, the electrically rewritable (electrically erasable and programmable) non-volatile storage means 30 has a microcomputer in the control circuit 10 as shown as the external non-volatile storage means 30 in the figure. In case of using the above, it can be constituted by an EEPROM 30 externally attached thereto.

The controlled part 40 controlled by the microcomputer or the control circuit 10 includes a combustion mechanism part 41, a fan motor part 42, and various sensors 43 . Relationship itself between the controller 40 and the control circuit 10 such as this may be the same as the combustion equipment existing of this kind.

An operating unit 20 is connected to the control circuit 10, but this can also be referred to as data setting means 20, and various setting data such as set temperature data (for a water heater, can be set by a user's operation). It is provided for inputting hot water supply temperature data, desired room temperature data for a fan heater, etc.) to the control circuit 10. The configuration of this part also does not need to be modified by the present invention with respect to the existing configuration. In some models, the control circuit 10 has already executed the clock function, and the current time is displayed on the clock display section 51 composed of a liquid crystal display or the like.
Is also provided with an operating member for initializing the current time.

On the other hand, the data write command operation unit 21
Is preferably something that the user cannot touch,
Only the manufacturer of this device, that is, the maker side, can operate this device as required later.

As described above, the rewritable external non-volatile storage means or the EEPROM 30 stores general data including various set data which can be set by the user in addition to the set temperature data concerning the room temperature and the hot water supply temperature. More important than that, data that directly relates to the safety of the combustion equipment, for example, correction for the analog output finally obtained from various sensors 43 including the flame detection sensor provided in the controlled unit 40. data, correction data relating to files Nmo over motor control, in the case of gas-fired equipment, such as data regarding limitations of the gas proportional valve current, various data even fallen device power want to keep intact is stored. In this portion, the characteristics of the present invention can be well expressed in terms of classification according to the characteristics of each data. Therefore, detailed description will be made below with reference to an operation example.

Control circuit composed of the microcomputer 10
When the power supply is given to the device in any case, such as when the power switch is intentionally turned on or when the power is restored after a power failure, the data communication operation determination means 12 first causes the E
It is decided to read data from the EPROM 30, and all the data stored in each data area described later is read from the EEPROM 30 via the data communication means 13.
They are stored in the internal data storage means or RAM 11.

Then, the data discriminating means 14 operates the RAM 11
It is determined whether each data stored in is normal or abnormal, that is, whether the data is valid data or invalid data. For this determination, it is possible to employ a keyword matching method or a sum check method, which are known methods per se. However, this is also related to the writing of data, so details will be given later.

Now, according to the present invention, the various data described above are first classified into at least two types. In this embodiment, the above-mentioned various setting data and the like may cause discomfort in use if they are damaged, but from the viewpoint of safety of the combustion equipment, a data group in which a fatal situation does not occur is selected. The above-mentioned various combustion control data groups, such as various correction data directly related to the safety of the combustion operation, are the second type data. Further, in a combustion device having a clock function, the time data may be captured as a first type data group or a third type data group which is separate from the first and second type data groups. However, although not directly related to the present invention, only the time data can be handled separately according to the method separately disclosed by the inventor of the present application.

After categorizing as described above, first, regarding the first type of data, the data group of the first type which is desired to be stored in the rewritable nonvolatile storage means or the EEPROM 30. Among at least one data, at least two data areas capable of storing the data are set and secured in isolation. For simplification, this embodiment exemplifies a case where two independent data areas A1 and A2 are set for one data belonging to the first type.

Next, regarding the second type of data, in the data group of the second type, which is also desired to be stored in the EEPROM 30, this is also related to at least one data, and the data that can store the data. The number of areas is set to be larger than the number of data areas set for the first type of data. In this embodiment, since there are two data areas of the first type as described above, it is sufficient that there are three or more data areas of the second type. For one data, there are three data areas B1, B2, B3.

Further, another set of data areas C1 and C2 is also shown in the figure, which is based on the above-mentioned time data as another third type of data, However, it may be considered necessary when handling it in the same way as the first type of data. In other words, it can be considered that there are two data in the first type data group, and two data areas A1, A2; C1 and C2 are set in the EEPROM 30 for each of them. The description of the data areas A1 and A2 in the following can be incorporated. Similarly, if there are three or more such data areas,
It can be considered that it is handled according to the second type of data area B1, B2, B3. Therefore, for simplicity, the data areas C1 and C2 will be omitted in the following description.

However, it is assumed that the data has already been stored in the data areas A1, A2 and B1, B2, B3 of the EEPROM 30, and the data is read out by the power-on as described above and stored in the RAM 11 before the data discriminating means. When both are judged to be valid by 14, as will be apparent later, both of the valid data of the first type and the valid data of the second type have the same content, so that the control circuit 10 controls the plurality of data having the same content. Any one of the above data may be used, but one is selected and a predetermined control operation is performed using valid data for each type. For example, if the read first type data is, for example, set temperature data as general data, the combustion mechanism unit is made to satisfy the set temperature instructed by the data.
41 and the fan / motor section 42 are controlled. On the other hand, as more important data regarding combustion, the second type of data is, for example, data that corrects the analog output of the flame detection sensor included in the various sensors 43, correction data regarding the fan motor, or If the data is the restriction data for the gas proportional valve current, the data is used to perform control according to a predetermined control function. However,
The case where the control circuit 10 is configured to start the combustion control according to the user's instruction after the operation of the combustion equipment is not started and the control operation is not started immediately but the operation standby state is included. In this document, the control operation is defined to include the control operation, including at least entering the control operation possible state.

On the other hand, data read out from the EEPROM 30 and transferred to and stored in the RAM 11 is stored in the data discriminating means.
As a result of the determination by 14, the two data read out from the two data areas A1 and A2 which should hold the same data and the three data read out from the three data areas B1, B2 and B3 When it is determined that even one is invalid, the control circuit 10 causes the data communication operation determination means 12 to determine the data write operation, and the two data areas A1, A2 or three in the EEPROM 30 are transmitted through the data communication means 13. Of the two data areas B1, B2, B3, transfer the remaining valid data to the data area that stores the invalid data, and rewrite the invalid data with the data determined to be valid, The control circuit 10 uses only the data judged to be valid by the data judgment means 14.

Therefore, the possibility of erroneous control is greatly reduced, and after the above rewriting operation is completed, two mutually independent data areas A1, A2 and three data areas in the EEPROM 30 for the same data are stored. All the data stored in mutually independent data areas B1, B2, B3 become valid data of the same content again for each type, and the damaged data can be restored or restored.

As is apparent, this operation is an effective power failure countermeasure and an effective data integrity countermeasure. That is, as in the conventional case, if only one data area for each data is provided in the EEPROM 30, if a power failure occurs while writing data to the data area, naturally, The data held in the data area in a non-volatile manner is at least partially destroyed and should be invalid data. Nevertheless, if the control circuit 10 does not recognize this after the power failure is recovered and the data read from the EEPROM 30 is used as it is, the desired control is not naturally performed, and in particular, the above-mentioned second type data As described above, if the data is important data for ensuring safety, such as correction data related to combustion control, even a dangerous state as a combustion device may occur. To prevent this, as already mentioned, it is necessary to back up the power supply with respect to the time required for writing all data by using a large-capacity capacitor or a separate battery.

Further, in such a single data area structure, even if the read data discriminating means can be used to know the invalidity of the data, there is no data that serves as a clue for repairing the damaged data. Therefore, if it is intentionally considered, the initial value data should be written in the ROM 15 or the like attached to the control circuit 10, and if the invalid data is determined, the initial value data should be written in the corresponding data area in the EEPROM 30. However, this may result in poor usability.

For example, in the case of a fan heater, if the initial value data regarding the set temperature related to room temperature is 20 ° C.,
Moreover, the desired temperature is set on the operation unit 20 (data setting means 20).
Suppose that the push button on your computer is designed to increase by 1 ° C each time you press it. Furthermore, the user sets 25 ° C as the set temperature data, which is very different from the initial value data during use before the power failure,
After that, the operation of selecting 26 ° C was further performed, but assume that a power failure occurred while writing this set temperature data of 26 ° C. Then, after recovery from the power failure, the control circuit can know that valid data no longer exists in the EEPROM, but there is no way to restore it, so the initial value data set in the ROM is 20 ° C. Select this and E
There is no choice but to write in EPROM. Therefore, the user must press the setting button in the operation section 20 again six times in order to input the desired set temperature data of 26 ° C. again.

However, according to the present invention, when compared under the same conditions, it is necessary for the user to completely reset the data of the first type after the power failure is restored. Also, one push button operation is sufficient. That is, according to the present invention, the previously set temperature data 25
When changing ℃ to 26 ℃ set this time, EEPROM
Two data areas A1 and A2 for the first type of data in 30
The new set temperature data is sequentially written in.
Therefore, in the case where the data area A1 is written first and then the data area A2 is written, no power failure occurred when new set temperature data was written to the first data area A1. But,
If a power failure occurs while data is being rewritten to the second data area A2, the latter of the two data read from both data areas A1 and A2 after the power failure is restored Although the data stored in the data area A2 is determined to be invalid by the data discriminating means 15,
Since the data stored in the first data area A1 is determined to be valid, the control circuit 10 can perform control according to this valid data as described above, and the user does not need to perform any operation. .

On the contrary, if a power failure occurs during the writing of the new set temperature data 26 ° C. to the first data area A1, the data in the first data area A1 may be invalid, but it is still not possible. In the second data area A2 that remains without receiving the write operation, the previous set temperature data of 25 ° C. remains. Therefore, after the power failure is restored, the control circuit 10 can perform control according to the set temperature data 25 ° C that the data determination means 15 determines to be valid, and there is not a big difference from the set temperature 26 ° C that the user previously requested to change. Or, the user can change the set temperature to the desired temperature of 26 ℃.
Even if it is changed again to, it suffices to press the push button provided on the operation unit 20 only once.

In this way, the superiority of the present invention is clear, but the EEPROM is not limited to power failure, but may be caused by noise or the like.
It is clear that the present invention is effective as a countermeasure when the data in 30 is damaged. This is because it is unlikely that data destruction will occur at the same time for all of the same data in a plurality of data areas. And this is not something that is rewritten frequently, and as will be shown later, basically regarding the second type data group that is rewritten as the data write command operation unit 21 is operated, It is meaningful. Of course, with respect to this second type of data as well, the above-mentioned power failure countermeasure operation functions advantageously, but in the present invention, the data area for this second type of data is further increased in the EEPROM 30 than that of the first type. Therefore, the maintenance function is being enhanced.

However, for both the first type data and the second type data, there is no case where all the data in the corresponding data areas A1, A2 or B1, B2, B3 are destroyed. Not necessarily. Therefore, in this embodiment, since there is no help in such a worst case, first, the initial value data determined in advance by the manufacturer for the first type of data is written in the EEPROM 30. That is, the ROM attached to the control circuit 10
The initial value data is stored in 15, and the two data read from the two data areas A1 and A2 in the EEPROM 30 via the data communication means 13 are determined to be invalid based on the read decision of the data communication operation determination means 12. When
The control circuit 10 reads the initial value data from the ROM 15 and causes the data communication operation determining means 12 to determine the writing of data, and the data communication means 13 causes the initial value data to be sequentially written to both data areas A1 and A2 of the EEPROM 30. Together with this initial value data.

On the other hand, data that is deeply involved in combustion and is closely related to safety, which is associated as the second type of data in the present invention, is stored in the corresponding data areas B1, B2, B3. When all of the data are destroyed and the data determining means 14 determines that all the data are invalid, the control circuit 10 in this embodiment stops the operation of the combustion equipment. To recover this, it is preferable not to let the user call, but call a so-called service person, and have the service person return it to a usable state. If this is not the case, describe in detail in the instruction manual and try to recover by a method that is not easy to operate. After all, the destroyed data is for safety,
This is because it is important data.

In order to satisfy this, the apparatus of this embodiment is provided with a data write command operating section 21 for the second type of data. The operation unit 21 may be a simple manual switch, but when it is operated, the control circuit 10 recalculates various correction data and the like based on a predetermined data extraction method or arithmetic expression. In this way, when the necessary second type of data becomes available, the data change determination means
16 determines the setting or change of the second type data. When the data change determination means 16 determines data setting or change in this way, the control circuit 10 causes the data communication operation determination means 12 to determine writing of data relating to the second type of data, and the data communication means Via the plurality of data areas B1, B2, B3 in the EEPROM 30
Write the set or changed data in On the contrary, by providing the data change determination means 16 for the second type of data as described above, the write-protection mode is normally set, and the writing is restricted only when an abnormality occurs in the data. It is effective in making two types of data preservation more powerful. Of course, the stopped combustion equipment is brought into an operable state when all the data are collected as described above.

However, the invalid state of all the data in both the first and second types of data as described above can be compared with the case where the power is first turned on after the combustion equipment is installed. That is, the data areas A1 and A2 of the EEPROM 30 and
Consider the case where no valid data is written in all the data areas of B1, B2, and B3. At this time, the data discriminating means 14 discriminates whether all the data in these data areas are invalid, so that the control circuit 10 stores the ROM of the first type of data by the mechanism already described.
The initial value data stored in 15 is read and sequentially transferred to the data areas A1 and A2 of the EEPROM 30, and the data of the second type is obtained in accordance with the operation of the data write command operation unit 21 described above. Data in the data area
Transfer to B1, B2, B3 sequentially.

However, when the keyword method is adopted for data discrimination as described above, a predetermined keyword is stored in the read-only storage means or the ROM 15 attached to the control circuit 10. On top of that, EEPR
Under the instruction of the control circuit 10, when writing given data of the first and second types respectively corresponding to the plurality of data areas A1, A2 and B1, B2, B3 of the OM30 according to the above-mentioned method, The keyword data read from the ROM 15 is also written in the respective data areas A1, A2 and B1, B2, B3 via the data communication means 13. Then, when the data is read out from each corresponding data area A1, A2 and B1, B2, B3 of the EEPROM 30, the keyword stored in each data area is also read out together, and the keyword is stored in the data discriminating means 14. The keywords stored in the ROM 15 are compared with each other, and if they do not match, the data in the data area storing the unmatched keywords is determined to be invalid.

Instead of such a keyword system, or more generally, in addition to this keyword system, a data discriminating means 14 for discriminating the validity of data by the sum check principle can be constructed. That is, the EEPROM 30
When writing the predetermined data in the area, if all the added values including the keyword data are stored as sum check data in each data area A1, A2 and B1, B2, B3,
The data discriminating means 14 can judge whether the data according to the sum check method is valid or invalid at the time of reading.

Further, especially regarding the second type of data,
Since the respective data lengths themselves do not become too long as the data necessary for this type of combustion equipment, a method of comparing each bit one by one may be adopted to confirm valid data.

Although the preferred embodiment of the present invention has been described above in detail, the number of data areas to be set in the non-volatile storage means 30 is not limited to two even for the first type of data.
Of course it is good to increase more. Further, for example, time data and the like may be included in accordance with the first type of data and stored in, for example, the two data areas C1 and C2 shown. However, if the latest data is always inserted, in the case of this time data, the data must be rewritten every minute even if the minimum resolution is set in minutes. Therefore, EEPRO currently on the market
Considering that the rewriting life of M30 is about 100,000 times, it is not appropriate to target such time data at the present time. This is because the rewriting life will be exhausted soon. However, if an EEPROM that allows rewriting a large number of times in the future is provided, in principle,
The present invention can be applied to such data.

[0041]

According to the present invention, in a control device in which data used for controlling combustion equipment is required to be stored in a non-volatile storage means, a large capacity capacitor or battery is not required, and a power failure occurs. There is a high possibility that the data stored in the rewritable non-volatile storage means can be protected without taking any special countermeasure when it occurs. Strong against disturbance. Therefore, safety and reliability can be improved while reducing the cost of the combustion device.

Further, according to the desirable mode of the present invention, even if the data is damaged as a result of power failure or disturbance, there is a high possibility of restoration, and the user needs to change and set the setting data set by the user again. Even if it occurs, the data stored in the non-volatile storage means does not always return to the initial value data, and it is highly likely that the data is close to the desired data, so the usability can be greatly improved.

Further, the data which is particularly important for ensuring the safety is the data of the second type referred to in the structure of the present invention, so that the maintenance reliability is further improved as compared with the data of the first type. Can be raised. Therefore, unlike the past, important data was not handled as digital data, but the control circuit was configured to constantly take in analog data, such as voltage information obtained from a volume that is an electromechanical component. It is also possible to reduce the number of parts.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a main part of a combustion device control device configured according to the present invention.

[Explanation of symbols]

10 control circuit or microcomputer, 11 volatile data storage means or RAM, 12 data communication operation determination means, 13 data communication means, 14 data determination means, 15 read only non-volatile storage means, 16 data change determination means, 20 operation part or Data setting means, 21 Data write command operation part for second kind of data, 30 Rewritable non-volatile storage means, 40 Controlled part, 51 Clock display part, A1 First data for first kind of data Area, A2 second data area for first type data, B1 first data area for second type data, B2 second data area for second type data, B3 second type data Third data area for C1, first data area for C3 third type data, C2 second data area for third type data.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-20518 (JP, A) JP-A-63-100557 (JP, A) JP-A-63-3126 (JP, A)

Claims (9)

[Claims] 1. A control circuit for controlling a controlled part including a combustion mechanism part by using a data group relating to combustion, and at least a plurality of types of data in the data group are stored in an electrically rewritable manner. Nonvolatile storage means, data communication operation determining means for determining writing and reading of the data in the rewritable nonvolatile storage means, and the data based on the determination of the data communication operation determining means. And a data communication unit for writing data to or reading data from the nonvolatile storage unit; the rewritable non-volatile storage unit includes a first of the plurality of types of data to be stored. For two types of data, set two or more independent data areas, and for the second type of data, use the number set for the first type of data above. In addition to setting a larger number of data areas; when the data communication operation determining means determines to write the data to the non-volatile storage means, the control circuit causes the data communication means,
For each of the first and second types, the data having the same content is sequentially written into the corresponding plurality of data areas of the non-volatile storage means; the data communication operation determining means stores the data from the non-volatile storage means. When it is determined to read the first and second types of data, the control circuit causes the data communication means to correspond to the nonvolatile storage means for each of the first and second types. The data stored in the plurality of data areas are sequentially read; the validity of each of the plurality of sequentially read data is discriminated by the data discriminating means for each of the first and second types. In addition, the control circuit uses only one of the plurality of data, which is judged to be valid by the data judging means, for each kind of data. Baked device control apparatus. 2. The combustion equipment control device according to claim 1, further comprising: a read-only storage means coupled to the control circuit; a keyword being stored in the read-only storage means; When the data of the same content is written in the plurality of data areas respectively corresponding to the rewritable nonvolatile storage means for each of the first and second types of data, the control circuit uses the data communication means. Writing the keyword read from the read-only storage means into each of the plurality of data areas of the non-volatile storage means; the data discriminating means stores the data for each of the first and second types of data. When the data is read out from the corresponding plurality of data areas of the non-volatile storage means, the data is read together. The keywords in the data area are compared with the keywords stored in the read-only storage means, and if they do not match, the data in the data area storing the unmatched keyword is invalidated. A combustion device control device characterized by: 3. The combustion equipment control device according to claim 1 or 2, wherein each of the first and second types of data comprises:
When writing the data of the same content to the plurality of data areas corresponding to the respective rewritable nonvolatile storage means, the control circuit writes the sum check data together with the data through the data communication means; The determining means stores the data of each of the first and second types together with the data when the data is read from the corresponding plurality of data areas of the nonvolatile storage means. Combustion equipment control device, characterized in that the validity of the sum check data is judged by using the sum check data. 4. The combustion device control apparatus according to claim 1, 2 or 3, wherein each of the first and second types of data is discriminable by the data discriminating means, and the rewriting is possible. When it is determined that at least one of the plurality of data read from the corresponding plurality of data areas of the non-volatile storage means is invalid and the rest is valid, the control circuit causes the data to be stored. The data in the data area storing the data determined to be invalid is determined via the data communication means by the communication operation determining means to determine the writing of data.
Rewriting according to the data judged to be effective above; 5. The combustion equipment control device according to claim 2, 3 or 4, wherein initial value data is written in said read-only storage means; As a result of the determination, when it is determined that all of the plurality of data read from the plurality of data areas relating to the first type of data in the rewritable nonvolatile storage means are invalid, the control circuit causes the data to be stored. From the read-only storage means through the data communication means, in the plurality of data areas corresponding to the first type data of the non-volatile storage means through the communication operation determination means Writing the read initial value data; 6. A combustion equipment control device according to claim 1, 2, 3, 4 or 5, wherein the rewritable non-volatile storage means stores the second type data. A data write command operating unit for instructing, and a data change determining unit for determining whether the second type of data has been set or changed based on the operation of the operating unit are further included; As a result of the discrimination by the data discriminating means, when it is determined that all of the plurality of data read from the plurality of data areas relating to the second type of data in the rewritable nonvolatile storage means are invalid, Unless the data change determination means determines the setting or change of the second type data, the control circuit stops the operation of the combustion equipment, and the data change determination means controls the data change determination means. When the setting or change is determined, the control circuit causes the data communication operation determining means to determine the writing of data relating to the second type of data, and through the data communication means, the above-mentioned non-volatile storage means. Writing the set or changed data in the plurality of data areas corresponding to the second type of data; 7. The combustion equipment control device according to claim 1, 2, 3, 4 or 5, wherein said control circuit is constituted by a microcomputer; said data communication operation determining means, said data communication means, said data. The discriminating means is equivalently constructed by the microcomputer;
Combustion equipment control device. 8. The combustion equipment control device according to claim 7, wherein the rewritable nonvolatile storage means is an EEPROM external to the microcomputer. 9. The combustion equipment control device according to claim 6, wherein said control circuit is constituted by a microcomputer; said data communication operation determining means, said data communication means, said data discriminating means, said data change discriminating means. Is equivalently configured by the microcomputer; the rewritable non-volatile storage means is an EEPROM external to the microcomputer; A combustor control device, which is a manual switch provided so as not to be operated.