JP2000179939A - Inspecting apparatus for controller of water heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inspecting apparatus for a controller of a water heater capable of rapidly inspecting the controller without according to a sequence of a combustion control. SOLUTION: In the water heater for communicating a controller 1 of the heater with a remote controller 3 with a communication signal having SA, DA, PFC and a data part of a two-wire type signal line 12, an inspecting apparatus 8 comprises a confirming signal sender 10 for generating the signal having in combination specific SA, PFC for inspecting to transmit it, an input unit for inputting a state of a load 2 of the heater, and an inspecting apparatus controller 9 for controlling an operation of the apparatus 8. In this case, the controller 9 outputs a specific communication signal designated by data of the data part desired to be driven of the load 2 to the line 12 by the sensing means 10, and when the designated load is driven according to the state of the load 2 input through the unit 11, it is decided to be normal of if not driven, it is decided to be abnormal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection device for inspecting the operation of a control device of a water heater.

[0002]

2. Description of the Related Art Conventionally, an operation test after assembling a control device of a water heater is an inspection device of a type in which a sequence of an actual water heater is moved and the operation of each load is confirmed in the sequence. Was.

[0003]

In such a conventional inspection apparatus for a water heater control apparatus, there is a problem that it takes a long time to perform an inspection because there is a load that does not operate unless a certain period of time has elapsed since the sequence was moved. there were.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide an inspection device for a control device of a water heater that can quickly inspect the operation.

[0005]

According to the present invention, a source address (hereinafter, referred to as SA) indicating a signal transmission source and a destination address (hereinafter, referred to as DA) indicating a signal transmission destination are provided. , A signal composed of a packet function code (hereinafter, referred to as PFC) indicating the content of the signal and a data portion indicating actual information is used as a communication signal, and the communication signal is transmitted from a remote controller via a two-wire signal line. In a water heater provided with a receiving device that receives, a combustion control device that performs combustion control according to a signal from the receiving device, and a control device that has a transmitting device that transmits information from the combustion control device to a remote controller,
When the combustion control device receives a specific communication signal having a combination of a specific SA and a PFC that is not used for communication with the remote controller via the receiving device, the control device includes a data part. The load connected to the combustion control device is driven in accordance with the information described in (2), and the inspection device transmits the specific communication signal to the
A confirmation signal transmission device for transmitting to the control device via a linear signal line, an input device for inputting a state of the load, and an inspection device control device, wherein the inspection device control device controls a load to be driven. The specified specific communication signal is transmitted by the confirmation signal transmitting device, and when the specified load is driven according to the state of the load input via the input device, it is normal, and when not driven, it is abnormal. This is an inspection device for a control device of a water heater that is determined to be.

According to the present invention, the inspection device transmits a specific communication signal designating a load to be driven via a two-wire signal line between the remote controller and the control device of the water heater, and the control device of the water heater has: By driving the load according to the received specific communication signal, the load to be driven can be driven immediately without using the combustion control sequence of the water heater, so that the inspection can be performed without time.

According to a second aspect of the present invention, the control device of the water heater drives the load according to the information written in the data section only when a specific communication signal is received continuously in a predetermined number of times or more. An inspection device for a control device of a water heater according to claim 1.

According to the present invention, transmission / reception errors of a specific communication signal can be prevented. According to a third aspect of the present invention, when the control device of the water heater drives the load according to the specific communication signal, the control device stops driving the load when the same specific communication signal is not received within a predetermined time. An inspection device for a control device of a water heater according to claim 1.

According to the present invention, a transmission / reception error of a specific communication signal can be prevented, and a driven load can be automatically stopped within a predetermined time.

According to a fourth aspect of the present invention, there is provided the inspection apparatus for controlling a water heater control device according to the first aspect, wherein the load to be driven is a specific communication signal assigned to each bit of the data of the data section.

According to the present invention, a plurality of loads can be driven and tested at the same time.

[0012]

In the present invention according to the first aspect, the inspection device sends a communication signal to a two-wire signal line connecting the control device of the water heater and the remote controller, and the control device of the water heater. Means for driving and inspecting the load by the communication signal using the receiving device, the combustion control device, and the driving device provided in the device. Originally, since the communication between the remote controller and the control device of the water heater is remotely controlled by a communication signal, information for inspection is placed on a communication signal of the same type as the communication signal, and the inspection device sends the two-wire signal line. Send to The communication signal includes an SA indicating a signal transmission source, a DA indicating a signal transmission destination, a PFC indicating communication contents, and a data section indicating data.

In an embodiment, each packet is made up of 4 bits and given a hexadecimal number. Up to 5 remote controllers for SA and DA
4. F is given to the control device of the water heater, and C is given to the inspection device for further inspection. Also, 0 is given to the PFC as communication between the remote controller and the control device of the water heater, and C is further given as communication between the inspection device and the control device of the water heater for the inspection. Therefore, the communication signal provided with the CFC becomes a specific communication signal for inspection, and becomes a communication signal not used in communication between the remote controller and the control device of the water heater. In addition, the data section gives a distinction between loads, such as 0 for load 2a, 1 for load 2b,
The load 2c is given a value of 2, which may be the same as the assignment in normal combustion control. Note that these are merely examples, and the present invention is not limited to these.

When receiving the specific communication signal, the control device of the water heater drives the load designated by the communication signal without following the normal combustion control.

The inspection machine control device in the inspection device is a means for controlling the operation of the inspection. The inspection device control device specifies a load to be inspected, and causes the confirmation signal transmission device to generate and transmit the specific communication signal. The state of the load is input via the CPU, and it is determined that the load is normal if the specified load is driven, and is abnormal if the load is not driven. By these operations, the load is driven directly without following the sequence of the combustion control, so that the inspection time does not become long due to waiting time or the like.

In the present invention according to claim 2, the control device of the water heater actually drives the load when the same specific communication signal is continuously received a predetermined number of times or more. This can prevent transmission / reception errors of a specific communication signal for inspection. In this case, the inspection device may continuously transmit the specific communication signal,
After transmitting a specific communication signal, the state of the load may be input via the input device, and the same communication signal may be transmitted again in response to the load not being driven. Thus, if the load is driven, it can be determined that the load is normal, and if not, it can be determined that the load is abnormal. In the embodiment, the control device of the water heater drives the load when receiving the same specific communication signal as the previous time, and stores the specific communication signal in the memory when receiving the non-identical specific communication signal. . Note that the current communication signal is updated and stored in the memory to the previous communication signal, and the load is driven by two coincidences. However, the present invention is not limited thereto.

In the present invention according to claim 3, the control device of the water heater stops the driven load when the same specific communication signal is not received within a predetermined time while the load is being driven. . In the embodiment, after the load is driven by the current specific communication signal, the timer is initialized and the counting is started. Also, when a specific communication signal that does not match with the previous specific communication signal within the predetermined time is received, the specific communication signal is stored in the memory and the driving load is stopped, and the timer is initialized. Start counting. When the first communication signal is input, there is no load during driving, and only the communication signal is stored. Note that it is sufficient to store only the communication signal data. Further, the predetermined time is set to 5 seconds, but is not limited to this. With these, the transmission / reception error of the communication signal can be prevented, and the inspection apparatus can automatically stop the driving load by not transmitting the next specific communication signal within a predetermined time.

In the present invention according to claim 4, a load is individually assigned to each bit of the data section. For example, a load a is assigned to bit 0, a load b is assigned to bit 1, and a load c is assigned to bit 2. When the load a and the load b are driven simultaneously, the data portion is 0011, that is, 3 when the data portion is 4 bits.
By transmitting the communication signal No. 3 from the inspection device to the control device of the water heater, the load a and the load b can be driven simultaneously.

Hereinafter, embodiments of the present invention will be described.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of an inspection apparatus for controlling a water heater according to the present invention.

(Embodiment 1) The first embodiment of the present invention is the first embodiment.
Related to

FIG. 1 is a block diagram showing the configuration of the first embodiment. In FIG. 1, reference numeral 1 denotes a control device for a water heater, to which a load 2 including a load 2a, a load 2b, and a load 2c is connected. Further, inside the control device 1 of the water heater, a receiving device 4 for receiving information from the remote controller 3, a combustion control device 5 for performing combustion control according to a signal from the receiving device 4, and a combustion control device 5 And a driving device 7 for driving the load 2. Reference numeral 8 denotes an inspection device.
Inspection machine control device 9 for designating one to be driven among a to 2c, and a confirmation signal transmission for transmitting a communication signal instructing control device 1 of the water heater to drive the load in accordance with a signal from inspection machine control device 9 The apparatus includes a device 10 and an input device 11 for inputting a driving state of a load. The control device 1 of the water heater and the inspection device 8 are connected by a two-wire signal line 12.

FIG. 2 is a schematic diagram showing a packet structure of a communication signal superimposed on the two-wire signal line 12. As shown in FIG. SA, D
A, PFC, and the data section are each composed of 4 bits. SA and DA are both 0
4 are assigned, F is assigned to the control device 1 of the water heater, and C is assigned to the inspection device 8. Normally, 0 is assigned as a PFC for communication between the water heater control device 1 and the remote controller 3.
C is assigned as a PFC for communication between the communication device and the inspection device 8. As the data portion, 1 is assigned to the load 2a, 2 is assigned to the load 2b, and 3 is assigned to the load 2c.

The operation of the above configuration will be described.
FIG. 3 is a flowchart showing the algorithm of the combustion control device 5. In the inspection device 8, the inspection device control device 9
Specifies the load 2a when it is desired to drive the load 2a, and the confirmation signal sending device 10 transmits a communication signal of CFC1 to the control device 1 of the water heater to drive the load 2a. In the control device 1 of the water heater, the receiving device 4 receives the communication signal, and the combustion control device 5 checks SA, DA, and PFC in Steps 1 to 3, and when it is C, F, C, respectively. It is confirmed that the source of the communication signal is the inspection device 8 and the destination is the control device 1 of the water heater, and that the communication signal is a communication signal for inspection, and the process proceeds to step 4 to check the data in the data part. If the data is 1, the load is 2a, if it is 2, the load 2b, if it is 3, the load 2
c is driven, but since the data is now 1, step 7
Then, the load 2a is driven and the process is terminated. In the inspection device 8, the inspection device control device 9 inputs the state of the load 2 via the input device 11, and determines that the specified load 2a is normal if it is driven, and determines that it is abnormal if it is not driven. .

As described above, according to the present embodiment, the inspection device 8 transmits a communication signal including SA, DA, PFC, and the data section to the two-wire signal line, and the control device 1 of the water heater supplies the communication signal. By driving the load according to the signal, the load can be driven directly without following the sequence of the combustion control, and the inspection can be performed quickly without increasing the inspection time due to waiting time. be able to. In addition, the communication signal can be transmitted using a two-wire signal line between the remote controller and the control device 1 of the water heater, and the receiving device 4 and the driving device 7 can be used as they are, thereby controlling the water heater. It is not necessary to newly provide a special device for inspection in the device 1.

(Embodiment 2) Hereinafter, a second embodiment of an inspection apparatus for a control device of a water heater according to the present invention will be described with reference to the drawings. This embodiment relates to claim 2.

FIG. 1 is a block diagram showing the configuration of this embodiment.
And the drawings are omitted. This embodiment is different from the first embodiment in that the combustion control device 5 in the control device 1 of the water heater drives the load 2 when the same data is continuously received.

The operation of the above configuration will be described with reference to the drawings. FIG. 4 is a flowchart showing an algorithm of the combustion control device 5 in the present embodiment. FIG.
, When the inspection device 8 transmits a communication signal for a predetermined inspection, the control device 1 of the water heater supplies the receiving device 4
Receives the communication signal, and the combustion control device 5
Similarly, by checking SA, DA, and PFC in steps 1 to 3, the source of the communication signal is the inspection device 8 and the destination is the control device 1 of the water heater,
Confirm that it is a communication signal for inspection, and
Then, it is checked whether they are the same as the previous SA, DA, and PFC. Since there is no previous data, it is determined that the data is the first time, and the process proceeds to step 5 to store the current data in the memory, and temporarily ends.

When the second communication signal is received, SA, DA and PFC are checked in the same manner as in the previous time in steps 1 to 3 and the previous SA, DA and PF are checked in the step 4.
C, and the data in the data section are compared, and if they match, the data in the data section is checked in steps 6 to 8. If data is 1, load 2a, if data is 2, load 2b,
If the data is 3, the load 2c is driven and the process is terminated. If they do not match, the process ends without driving. In the inspection device 8, the inspection device control device 9 inputs the state of the load 2 via the input device 11, and determines that the commanded one is normal when driven and normal when not driven.

As described above, according to the present embodiment, in the control device 1 of the water heater, the combustion control device 5 drives the designated one of the loads 2 when the same data is continuously received. By doing so, it is possible to prevent a transmission / reception error of a communication signal and to reliably perform an inspection.

In this embodiment, the control device 1 for the water heater is used.
Is driven when they match the previous time and this time, but it goes without saying that the load may be driven when a plurality of times match continuously.

(Embodiment 3) Hereinafter, a third embodiment of an inspection apparatus for a control device of a water heater according to the present invention will be described with reference to the drawings. This embodiment relates to claim 3.

FIG. 1 is a block diagram showing the configuration of this embodiment.
And the drawings are omitted. This embodiment is different from the first embodiment in that when the same specific communication signal as the previous communication signal is not received within 5 seconds, the driving load 2 is stopped.

The operation of the above configuration will be described with reference to the drawings. FIG. 5 is a flowchart showing an algorithm of the combustion control device 5 in the present embodiment. FIG.
In step (1), when a communication signal is received, the SA, DA, and PFC are checked in steps 1 to 3, and if the communication signal is a specific communication signal, the process proceeds to step 4 and the same communication is performed within 5 seconds from the previous reception. Check whether a signal has been received. If this time is the first specific communication signal, since it does not match the previous time, the process proceeds to step 5, the current data is stored in the memory, the process proceeds to step 6, the driving load 2 is stopped, and the process proceeds to step 13. The process proceeds to initialize the timer, start counting, and terminate. If there is no load 2 being driven, step 6 is only invalidated.

When the next specific communication signal is received, if it is the same specific communication signal as last time within 5 seconds in step 4, any one of the loads 2a to 2c indicated by the data section is driven in step 6 to step 12. After that, the counter is initialized and the counting is started and finished. If the same specific communication signal as in the previous time is not received within 5 seconds, the process proceeds to step 5 and the data of the current data portion is stored. 6
Then, the load 2 being driven is stopped, and the routine proceeds to step 13, where the counter is initialized to start counting and ends.

As described above, according to the present embodiment, the control device of the water heater stops the driving load if it does not receive the same specific communication signal within 5 seconds. In addition to preventing transmission / reception errors, the inspection apparatus does not transmit the same specific communication signal within 5 seconds, so that the load is driven for 5 seconds and then stopped.
It is also possible to shift to inspection of other loads.

In this embodiment, the time is set to 5 seconds, but it is needless to say that the present invention is not limited to this. (Embodiment 4) Hereinafter, a fourth embodiment of an inspection apparatus for controlling a water heater according to the present invention will be described with reference to the drawings. This embodiment relates to claim 4.

FIG. 1 is a block diagram showing the configuration of this embodiment.
And the drawings are omitted. This embodiment is different from the first embodiment in that a load 2 is assigned to each bit of the data part.

The operation in the above configuration will be described with reference to the drawings. FIG. 6 is a schematic diagram showing a packet configuration of a communication signal between the control device 1 of the water heater and the inspection device 8 in the present embodiment. A load 2 is assigned to each bit of the data part. For example, a load 2a is assigned to bit 0, a load 2b is assigned to bit 1, and a load 2c is assigned to bit 2. Thereby, the signal of CFC3 can be transmitted from the inspection device 8 to the control device 1 of the water heater to drive the load 2a and the load 2b simultaneously.

As described above, according to the present embodiment, the load 2 is separately assigned to each bit of the data portion,
Inspection can be performed by driving a plurality of loads simultaneously.

[0041]

The present invention according to claim 1 comprises SA indicating a signal transmission source, DA indicating a signal transmission destination, PFC indicating a signal content, and a data section indicating actual information. The received signal as a communication signal, a receiving device that receives the communication signal from a remote controller via a two-wire signal line, a combustion control device that performs combustion control according to a signal from the receiving device, And a transmitting device for transmitting the information of the remote controller to the remote controller, the control device includes a specific SA that is not used for communication with the remote controller.
When the combustion control device receives a specific communication signal having a combination of the control device and the PFC via the reception device, the combustion control device drives a load connected to the combustion control device according to information described in a data part thereof. And an inspection device, a confirmation signal transmission device that transmits the specific communication signal to the control device via the two-wire signal line, an input device that inputs the state of the load, and an inspection device control device. The inspection machine control device transmits the specific communication signal specifying the load to be driven by the confirmation signal transmitting device, and the specified load is driven by the state of the load input via the input device. This is an inspection device for the control device of the water heater, which is determined to be normal when it is in operation and abnormal when it is not driven.

According to the present invention, the inspection device transmits a specific communication signal designating the load to be driven via a two-wire signal line between the remote controller and the control device of the water heater, and the control device of the water heater operates as follows. By driving the load according to the received specific communication signal, the load to be driven can be driven immediately without using the combustion control sequence of the water heater, so that the inspection can be performed without time. Further, since the communication signal between the remote controller and the control device of the water heater is utilized, it is not necessary to provide a special device for inspection in the control device of the water heater.

According to a second aspect of the present invention, the control device of the water heater is configured to drive the load according to the information described in the data section only when the specific communication signal is received continuously in a predetermined number of times or more. An inspection device for a control device of a water heater according to claim 1.

According to the present invention, it is possible to prevent a transmission / reception error of a specific communication signal and to surely carry out the inspection.

According to a third aspect of the present invention, when the control device of the water heater drives the load in accordance with the specific communication signal, the control device of the water heater does not receive the same specific communication signal within a predetermined time. An inspection device for a control device of a water heater according to claim 1, wherein the driving is stopped.

According to the present invention, a transmission / reception error of a specific communication signal can be prevented, and a driven load can be automatically stopped within a predetermined time, and a specific communication signal for stopping the load is transmitted. You don't have to.

According to a fourth aspect of the present invention, there is provided the inspection apparatus for controlling a water heater control device according to the first aspect, wherein the load to be driven is a specific communication signal assigned to each bit of the data in the data section.

According to the present invention, inspection can be performed by driving a plurality of loads at the same time, and the inspection can be performed efficiently.

As described above, according to the present invention, the load can be driven without depending on the sequence of the combustion control of the water heater, so that the inspection time can be reduced. Further, it is not necessary to provide a special circuit in the control device of the water heater in order to utilize a receiving device for receiving the communication signal of the remote controller, which is advantageous in terms of cost and space.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a first embodiment of a water heater control device of the present invention.

FIG. 2 is a schematic diagram showing a packet configuration of a communication signal superimposed on a two-wire signal line in the embodiment.

FIG. 3 is a flowchart showing an algorithm of the combustion control device in the embodiment.

FIG. 4 is a flowchart showing an algorithm of a combustion control device according to a second embodiment of the inspection device of the water heater control device of the present invention.

FIG. 5 is a flowchart showing an algorithm of the combustion control device in the third embodiment of the inspection device for the control device of the water heater according to the present invention.

FIG. 6 is a schematic diagram showing a packet configuration of a specific communication signal in a fourth embodiment of the inspection device for the control device of the water heater according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control device of water heater 2 2a, 2b, 2c Load 3 Remote controller 4 Receiving device 5 Combustion control device 6 Transmitting device 7 Drive device 8 Inspection device 9 Inspection device control device 10 Confirmation signal transmission device 11 Input device 12 Two-wire signal Line SA source address DA destination address PFC packet function code

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yukio Sakaguchi 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. Term (reference) 5H223 AA11 AA15 CC08 DD03 DD07 DD09 EE06 EE17 FF08

Claims (4)

[Claims] 1. A signal comprising a source address indicating a source of a signal, a destination address indicating a destination of the signal, a packet function code indicating the content of the signal, and a data part indicating actual information. A communication device, a reception device that receives the communication signal from a remote controller via a two-wire signal line, a combustion control device that performs combustion control in accordance with a signal from the reception device, and information from the combustion control device. A water heater comprising a control device having a transmitting device for transmitting to a controller, wherein the control device has a specific communication having a combination of a specific source address and a packet function code not used for communication with the remote controller. When a signal is received by the combustion control device via the receiving device, the data is The load connected to the combustion control device is driven according to the information described in the section, and the inspection device sends a confirmation signal for transmitting the specific communication signal to the control device via the two-wire signal line. Device, an input device for inputting the state of the load, and an inspection device control device, wherein the inspection device control device transmits the specific communication signal specifying the load to be driven by the confirmation signal transmission device. An inspection apparatus for a control device of a water heater, which determines that a specified load is normal according to a state of a load input via the input device and that the load is abnormal when the load is not driven. 2. The hot water heater according to claim 1, wherein the control device of the water heater drives the load in accordance with the information described in the data section only when the specific communication signal is received continuously for a predetermined number of times or more. Inspection equipment for machine control equipment. 3. The control device for a water heater, when driving a load according to a specific communication signal, stops driving the load if the same specific communication signal is not received within a predetermined time. An inspection device for a control device of a water heater according to claim 1. 4. The load to be driven is a specific communication signal assigned to each bit of data in the data section.
An inspection device for a control device of a water heater according to the above description.