Control device and control method

Abstract

To enable data to be set which represents necessary internal setting for control of an own device without utilizing an external device.SOLUTION: A control device includes: a first storing unit 101 that stores, as data representing first internal setting, data representing internal setting necessary for control of an own device; a second storing unit 102 that stores, as data representing second internal setting, data representing internal setting necessary for control of a control device 1 connected to the own device; a first transmission processing unit 103 that transmits, to the control device 1 connected to the own device, data representing second internal setting stored in second storing unit 102; a first reception processing unit 104 that receives data representing second internal setting transmitted by the control device 1 connected to the own device; and a setting unit 105 that makes setting to the first storing unit 101 in accordance with data representing second internal setting received by the first reception processing unit 104.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a control device and a control method for setting data indicating internal settings required for controlling the device itself. [Background technology]

[0002] The combustion safety devices are installed near the furnace, and many of them are installed (see, for example, Patent Document 1). Therefore, when such combustion safety devices break down, replacement work is an issue. In this regard, conventional combustion safety devices had simple functions and fixed settings, so if a malfunction occurred in the combustion safety device, it was possible to restore operation simply by replacing the malfunctioning combustion safety device. On the other hand, recent combustion safety devices are multifunctional and have many settings, so if a malfunction occurs in the combustion safety device, it is common to use a PC tool to configure the settings when replacing the malfunctioning combustion safety device.

[0003] For example, Figure 10 shows a case where a combustion safety system is equipped with three combustion safety devices 11. Each combustion safety device 11 holds data indicating the internal settings necessary for controlling itself. In addition, an external device, a PC tool 21, holds all data indicating the internal settings of the three combustion safety devices 11. In this configuration, for example, assume that an abnormality occurs in the combustion safety device 11-2, and the combustion safety device 11-2 is removed and replaced with a spare combustion safety device 11-2, as shown in Figure 11. In this case, the PC tool 21 is connected to the spare combustion safety device 11-2, and sends data indicating the second internal setting for the combustion safety device 11-2 to set it.

[0004] However, as mentioned above, the installation site for the combustion safety device is near the furnace, and it can be difficult to configure it using a PC tool. In addition, from the standpoint of confidentiality, it is expected that the use of electronic devices such as PCs will be difficult. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2022-029134 Summary of the Invention [Problem to be solved by the invention]

[0006] In this way, when a malfunction occurs in a conventional combustion safety device, it is common to configure the device using a PC tool before replacing it. However, it can be difficult to configure the combustion safety device using an external device such as a PC tool. Although the above description has been given using a combustion safety device as an example, similar problems may occur in other control devices.

[0007] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a control device that can set data indicating internal settings necessary for controlling the device itself without using an external device. [Means for solving the problem]

[0008] The control device of the present disclosure is characterized by comprising a first memory unit that stores data indicating internal settings required for controlling the device itself as data indicating first internal settings, a second memory unit that stores data indicating internal settings required for controlling a control device connected to the device itself as data indicating second internal settings, a first transmission processing unit that transmits the data indicating the second internal settings stored in the second memory unit to the control device connected to the device itself, a first receiving processing unit that receives data indicating the second internal settings transmitted by the control device connected to the device itself, and a setting unit that configures the first memory unit using the data indicating the second internal settings received by the first receiving processing unit. [Effects of the Invention]

[0009] According to the present disclosure, with the above configuration, it is possible to set data indicating internal settings required for controlling the device itself without using an external device. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing an example of the configuration of a control system according to a first embodiment (when there are two control devices). [Figure 2] 1 is a diagram showing an example of the configuration of a control system according to a first embodiment (when there are three control devices). [Figure 3] 1 is a diagram illustrating an example of the configuration of a control device according to a first embodiment. [Figure 4] FIG. 3 is a diagram showing an example of normal operation of the control device according to the first embodiment (when there are two control devices). [Figure 5] FIG. 3 is a diagram illustrating an example of normal operation of the control device according to the first embodiment (when there are three control devices). [Figure 6] FIG. 4 is a diagram showing an example of operation of the control device according to the first embodiment when an abnormality occurs (when there are three control devices). [Figure 7] FIG. 10 is a diagram illustrating an example of the configuration of a control device according to a second embodiment. [Figure 8] FIG. 10 is a diagram illustrating an example of normal operation of the control device according to the second embodiment. [Figure 9] FIG. 10 is a diagram illustrating an example of operation of the control device according to the second embodiment when an abnormality occurs. [Figure 10] FIG. 1 is a diagram illustrating a configuration example of a conventional combustion safety system. [Figure 11] FIG. 10 is a diagram showing an example of operation when replacement work is required for a conventional combustion safety device. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments will be described in detail with reference to the drawings. Embodiment 1 1 and 2 are diagrams showing an example of the configuration of a control system according to the first embodiment. 1 and 2, the control system includes two or more control devices 1. An example of the control system is a combustion safety system, and an example of the control device 1 is a combustion safety device, but is not limited to these.

[0012] 1 shows a case where two control devices 1 are provided in the control system, and FIG. 2 shows a case where three control devices 1 are provided in the control system. In the following description, when it is necessary to distinguish between the control devices 1, suffixes (-1, -2, -3) will be added to the reference numerals.

[0013] When two control devices 1 are provided in a control system, the control devices 1 are connected to each other so that they can communicate with each other. Furthermore, when a control system is equipped with three or more control devices 1, each control device 1 is communicably connected to two control devices 1. In this case, each control device 1 is connected such that the two control devices 1 to which it is connected are shifted by one. Each control device 1 is connected one-to-one with the control device 1 to which it is connected.

[0014] As shown in FIG. 3, the control device 1 includes a first storage unit 101, a second storage unit 102, a first transmission processing unit 103, a first reception processing unit 104, and a setting unit 105.

[0015] The first storage unit 101 stores data indicating internal settings necessary for controlling the device itself as data indicating first internal settings.

[0016] The second storage unit 102 stores data indicating internal settings necessary for controlling the control device 1 connected to itself as data indicating second internal settings. In addition, when the control system is equipped with three or more control devices 1, the second memory unit 102 stores data indicating the internal settings required to control one of the two control devices 1 connected to the device as data indicating the second internal settings.

[0017] The first storage unit 101 and the second storage unit 102 are configured by a hard disk drive (HDD), a digital versatile disc (DVD), a memory, etc. Examples of the memory include non-volatile or volatile memories such as a solid state drive (SSD), a flash memory, and a random access memory (RAM).

[0018] The first transmission processing unit 103 transmits data indicating the second internal setting stored in the second storage unit 102 to the control device 1 connected to the first transmission processing unit 103 itself. In addition, if the control system is equipped with three or more control devices 1, the first transmission processing unit 103 transmits data indicating the second internal settings stored in the second memory unit 102 to one of the two control devices 1 connected to the first transmission processing unit 103. In other words, when a control device 1 that holds data indicating internal settings experiences a malfunction or the like and is replaced with a new control device 1, the first transmission processing unit 103 transmits the data indicating the internal settings (data indicating the second internal settings) to the new control device 1.

[0019] The first transmission processing unit 103 may also transmit data indicating the first internal setting stored in the first storage unit 101 to the control device 1 connected to the first transmission processing unit 103 itself. In addition, if the control system is equipped with three or more control devices 1, the first transmission processing unit 103 may transmit data indicating the first internal setting stored in the first memory unit 101 to the other of the two control devices 1 connected to the first device. That is, the first transmission processing unit 103 may periodically or at a predetermined timing transmit data indicating the internal settings of the device itself (data indicating the first internal settings) to the control device 1 that is the data depository.

[0020] The first receiving processor 104 receives data indicating the second internal setting transmitted by the control device 1 connected to the first receiving processor 104. In addition, if the control system is equipped with three or more control devices 1, the first receiving processing unit 104 receives data indicating the second internal settings transmitted by the other of the two control devices 1 connected to the first receiving processing unit 1.

[0021] The first reception processing unit 104 may also receive data indicating the first internal setting transmitted by the control device 1 connected to the first reception processing unit 104 itself. In addition, if the control system is equipped with three or more control devices 1, the first receiving processing unit 104 may receive data indicating the first internal setting transmitted by one of the two control devices 1 connected to the device itself.

[0022] The setting unit 105 performs setting for the first storage unit 101 based on the data indicating the second internal setting received by the first receiving processing unit 104. That is, the setting unit 105 stores the data indicating the second internal setting in the first storage unit 101 as data indicating the first internal setting.

[0023] Furthermore, the setting unit 105 may update the second storage unit 102 with data indicating the first internal setting received by the first reception processing unit 104. When updating, the setting unit 105 updates all the data or updates the difference part of the data.

[0024] The first transmission processing unit 103, the first reception processing unit 104 and the setting unit 105 are realized by a processing circuit such as a system LSI (Large Scale Integration), or a CPU (Central Processing Unit) that executes a program stored in a memory or the like.

[0025] Next, an example of the operation of the control device 1 according to the first embodiment shown in FIG. 3 will be described with reference to FIGS. First, an example of normal operation of the control device 1 according to the first embodiment shown in FIG. 3 will be described with reference to FIGS.

[0026] In an example of normal operation of the control device 1 according to the first embodiment shown in Fig. 3, first, as shown in Fig. 4 and Fig. 5, the first transmission processing unit 103 transmits data indicating the first internal setting stored in the first storage unit 101 to the control device 1 connected to the control device 1 (step ST101). Note that if three or more control devices 1 are provided in the control system, the first transmission processing unit 103 transmits data indicating the first internal setting stored in the first storage unit 101 to the other of the two control devices 1 connected to the control device 1. That is, the first transmission processing unit 103 periodically or at a predetermined timing transmits data indicating the internal settings of the device itself (data indicating the first internal settings) to the control device 1, which is the data depository.

[0027] The first receiving processor 104 also receives data indicating the first internal setting transmitted by the control device 1 connected to the first receiving processor 104 (step ST102). If the control system includes three or more control devices 1, the first receiving processor 104 receives data indicating the first internal setting transmitted by one of the two control devices 1 connected to the first receiving processor 104.

[0028] Next, the setting unit 105 updates the second storage unit 102 with the data indicating the first internal setting received by the first reception processing unit 104 (step ST103). When updating, the setting unit 105 updates all the data or updates the data of the difference part.

[0029] In the example of Figure 4, the control device 1-1 transmits data indicating its own internal settings (data indicating the internal settings of 1-1) to the control device 1-2, and also receives data indicating the internal settings of the control device 1-2 (data indicating the internal settings of 1-2) from the control device 1-2 and updates the second memory unit 102 with the data. Similarly, in the example of Figure 4, the control device 1-2 transmits data indicating its own internal settings (data indicating the internal settings of 1-2) to the control device 1-1, and also receives data indicating the internal settings of the control device 1-1 (data indicating the internal settings of 1-1) from the control device 1-1 and updates the second memory unit 102 with that data.

[0030] In the example of Figure 5, the control device 1-1 transmits data indicating its own internal settings (data indicating the internal settings of 1-1) to the control device 1-3, and also receives data indicating the internal settings of the control device 1-2 (data indicating the internal settings of 1-2) from the control device 1-2 and updates the second memory unit 102 with the data. Similarly, in the example of Figure 5, the control device 1-2 transmits data indicating its own internal settings (data indicating the internal settings of 1-2) to the control device 1-1, and also receives data indicating the internal settings of the control device 1-3 (data indicating the internal settings of 1-3) from the control device 1-3 and updates the second memory unit 102 with that data. Similarly, in the example of Figure 5, the control device 1-3 transmits data indicating its own internal settings (data indicating the internal settings of 1-3) to the control device 1-2, and also receives data indicating the internal settings of the control device 1-1 (data indicating the internal settings of 1-1) from the control device 1-1 and updates the second memory unit 102 with that data.

[0031] In this way, the control device 1 according to the first embodiment stores data indicating internal settings required for controlling the control device 1 itself with the control device 1 connected thereto. Furthermore, the control device 1 according to the first embodiment can update the data it holds to the latest state by, for example, periodically transmitting and receiving the data at a low frequency.

[0032] Next, an example of the operation of the control device 1 according to the first embodiment shown in FIG. 3 in the event of an abnormality will be described with reference to FIG.

[0033] In an example of operation of the control device 1 according to the first embodiment shown in Fig. 3 in the event of an abnormality, first, as shown in Fig. 6, for example, the first transmission processing unit 103 transmits data indicating the second internal setting stored in the second storage unit 102 to the control device 1 connected to the control device 1 (step ST201). Note that if three or more control devices 1 are provided in the control system, the first transmission processing unit 103 transmits data indicating the second internal setting stored in the second storage unit 102 to one of the two control devices 1 connected to the control device 1. In other words, when a control device 1 that holds data indicating internal settings experiences a malfunction or the like and is replaced with a new control device 1, the first transmission processing unit 103 transmits the data indicating the internal settings (data indicating the second internal settings) to the new control device 1.

[0034] Furthermore, the first receiving processing unit 104 receives data indicating the second internal setting transmitted by the control device 1 connected to the first receiving processing unit 104 (step ST202). When three or more control devices 1 are provided in the control system, the first receiving processing unit 104 receives data indicating the second internal setting transmitted by the other control device 1 of the two control devices 1 connected to the first receiving processing unit 104.

[0035] Next, setting unit 105 performs setting for first storage unit 101 using the data indicating the second internal setting received by first reception processing unit 104 (step ST203). That is, setting unit 105 stores the data indicating the second internal setting in first storage unit 101 as data indicating the first internal setting.

[0036] The example of Fig. 6 shows a case where an abnormality occurs in the control device 1-2 in the control system shown in Fig. 5, and the control device 1-2 is removed and replaced with a spare control device 1-2. Note that an initial value is stored in the first storage unit 101 of the spare control device 1-2. In this case, the control device 1-2 makes a data request to the control device 1-1, whereby the control device 1-2 can receive data indicating the second internal setting (data indicating the internal setting of the first storage unit 101) from the control device 1-1 and set the first storage unit 101 using the data.

[0037] FIG. 6 shows an example of operation of the control device 1 in the event of an abnormality in a case where the control system includes three control devices 1. On the other hand, in the case where the control system includes two control devices 1, the operation example of the control device 1 in the event of an abnormality is similar to the above.

[0038] In this way, in the control device 1 according to the first embodiment, data indicating internal settings is stored between the connected control devices 1, and when replacement occurs due to a malfunction or the like, settings are made using the data stored in the partner control device 1. This makes it possible for the control device 1 according to the first embodiment to set internal settings without using an external device such as a PC tool.

[0039] Furthermore, in a control system with multiple control devices 1, when changing the system settings, it is necessary to change the settings of all of the control devices 1 in question, and when replacing a control device 1, it is necessary to match the settings before and after the replacement, which is time-consuming for the system designer. In contrast to this, in the control device 1 according to the first embodiment, the partner control devices 1 mutually store data indicating their internal settings, thereby making it possible to reduce the time and effort described above.

[0040] In conventional one-to-many serial communication connections, data cannot be sent or received unless a device address is set. In contrast, the control device 1 according to the first embodiment has a one-to-one connection with the control device 1 to be connected. This makes it possible for the control device 1 according to the first embodiment to omit the above-described communication settings, thereby enabling setting-less communication.

[0041] As described above, according to this embodiment 1, the control device 1 includes a first memory unit 101 that stores data indicating internal settings required for controlling the device itself as data indicating first internal settings, a second memory unit 102 that stores data indicating internal settings required for controlling the control device 1 connected to the device itself as data indicating second internal settings, a first transmission processing unit 103 that transmits the data indicating the second internal settings stored in the second memory unit 102 to the control device 1 connected to the device itself, a first receiving processing unit 104 that receives data indicating the second internal settings transmitted by the control device 1 connected to the device itself, and a setting unit 105 that sets the first memory unit 101 using the data indicating the second internal settings received by the first receiving processing unit 104. Furthermore, according to this embodiment 1, the second memory unit 102 stores data indicating the internal settings required for controlling one of the two control devices 1 connected to the device as data indicating the second internal settings, the first transmission processing unit 103 transmits the data indicating the second internal settings stored in the second memory unit 102 to one of the two control devices 1 connected to the device, and the first reception processing unit 104 receives the data indicating the second internal settings transmitted by the other of the two control devices 1 connected to the device. As a result, the control device 1 according to the first embodiment can set data indicating internal settings required for controlling its own device without using an external device. As a result, the control device 1 according to the first embodiment can quickly recover from an abnormality such as a breakdown, which can contribute to reducing maintenance costs.

[0042] Furthermore, according to this embodiment 1, the first transmission processing unit 103 transmits data indicating the first internal setting stored in the first memory unit 101 to the control device 1 connected to the device itself, the first reception processing unit 104 receives the data indicating the first internal setting transmitted by the control device 1 connected to the device itself, and the setting unit 105 updates the second memory unit 102 using the data indicating the first internal setting received by the first reception processing unit 104. Furthermore, according to this embodiment 1, the first transmission processing unit 103 transmits data indicating the first internal setting stored in the first memory unit 101 to the other of the two control devices 1 connected to the device, the first reception processing unit 104 receives the data indicating the first internal setting transmitted by one of the two control devices 1 connected to the device, and the setting unit 105 updates the second memory unit 102 using the data indicating the first internal setting received by the first reception processing unit 104. Furthermore, according to the first embodiment, when updating, the setting unit 105 updates all data or updates differential data. As a result, in the control device 1 according to the first embodiment, it is possible to make the data indicating the first internal setting held in the counterpart control device 1 the latest data.

[0043] Furthermore, according to this embodiment 1, the control method is a control method by a control device 1 having a first memory unit 101 that stores data indicating internal settings required for controlling the device itself as data indicating first internal settings, and a second memory unit 102 that stores data indicating internal settings required for controlling a control device 1 connected to the device itself as data indicating second internal settings, and includes a step in which a first transmission processing unit 103 transmits data indicating the second internal settings stored in the second memory unit 102 to the control device 1 connected to the device itself, a step in which a first reception processing unit 104 receives data indicating the second internal settings transmitted by the control device 1 connected to the device itself, and a step in which a setting unit 105 sets the first memory unit 101 using the data indicating the second internal settings received by the first reception processing unit 104. As a result, the control method according to the first embodiment makes it possible to set data indicating internal settings required for controlling the device itself without using an external device. As a result, the control method according to the first embodiment makes it possible to quickly restore the device even if an abnormality such as a breakdown occurs, thereby contributing to reduced maintenance costs.

[0044] Embodiment 2 Fig. 7 is a diagram showing an example of the configuration of the control device 1 according to embodiment 2. In the control device 1 according to embodiment 2 shown in Fig. 7, a third storage unit 106, a second transmission processing unit 107, and a second reception processing unit 108 are added to the control device 1 according to embodiment 1 shown in Fig. 3. The other example of the configuration of the control device 1 according to embodiment 2 shown in Fig. 7 is the same as that of the control device 1 according to embodiment 1 shown in Fig. 3, and the same reference numerals are used, and only the different parts will be described. The control system according to the second embodiment includes three or more control devices 1.

[0045] The third storage unit 106 stores data indicating internal settings required for controlling the other of the two control devices 1 connected to the own device.

[0046] The third storage unit 106 is configured by a HDD, a DVD, a memory, or the like.

[0047] The second transmission processing unit 107 transmits data indicating the third internal setting stored in the third storage unit 106 to the other of the two control devices 1 connected to the second transmission processing unit 107. In other words, when the control device 1 that holds the data indicating the internal settings experiences a malfunction or the like and is replaced with a new control device 1, the second transmission processing unit 107 transmits the data indicating the internal settings (data indicating the third internal settings) to the new control device 1.

[0048] In addition, the second transmission processing unit 107 may transmit data indicating the first internal settings stored in the first memory unit 101 to one of the two control devices 1 connected to the device itself. That is, the second transmission processing unit 107 may periodically or at a predetermined timing transmit data indicating the internal settings of its own device (data indicating the first internal settings) to one of the two control devices 1 that are the recipients of the data.

[0049] The second receiving processor 108 receives data indicating the third internal setting transmitted by one of the two control devices 1 connected to the own device.

[0050] The second receiving processor 108 may also receive data indicating the first internal setting transmitted by the other of the two control devices 1 connected to the second receiving processor 108.

[0051] Furthermore, the setting unit 105 in the second embodiment performs setting in the first storage unit 101 using at least one of the data indicating the second internal setting received by the first reception processing unit 104 and the data indicating the third internal setting received by the second reception processing unit 108. That is, the setting unit 105 stores the data indicating the second internal setting or the data indicating the third internal setting in the first storage unit 101 as data indicating the first internal setting.

[0052] In addition, the setting unit 105 in embodiment 2 may update the second memory unit 102 using data indicating the first internal setting received by the first receiving processing unit 104, and may update the third memory unit 106 using data indicating the first internal setting received by the second receiving processing unit 108. When updating, the setting unit 105 updates all the data or updates the difference part of the data.

[0053] In addition, the setting unit 105 may determine that the data is normal when the data indicating the second internal setting received by the first receiving processing unit 104 and the data indicating the third internal setting received by the second receiving processing unit 108 match (including the meaning of approximately match).

[0054] The second transmission processing unit 107 and the second reception processing unit 108 are realized by a processing circuit such as a system LSI, or a CPU that executes a program stored in a memory or the like.

[0055] Next, an example of the operation of the control device 1 according to the second embodiment shown in FIG. 7 will be described with reference to FIGS. First, an example of normal operation of the control device 1 according to the second embodiment shown in FIG. 7 will be described with reference to FIG.

[0056] In an example of normal operation of the control device 1 of embodiment 2 shown in Figure 7, as shown in Figure 8, for example, the first transmission processing unit 103 first transmits data indicating the first internal setting stored in the first memory unit 101 to the other of the two control devices 1 connected to the device itself (step ST301). That is, the first transmission processing unit 103 periodically or at a predetermined timing transmits data indicating the internal settings of its own device (data indicating the first internal settings) to the other of the two control devices 1 that are the recipients of the data.

[0057] In addition, the second transmission processing unit 107 transmits data indicating the first internal setting stored in the first memory unit 101 to one of the two control devices 1 connected to the second transmission processing unit 107 (step ST301). That is, the second transmission processing unit 107 periodically or at a predetermined timing transmits data indicating its own internal settings (data indicating the first internal settings) to one of the two control devices 1 that are the recipients of the data.

[0058] The first reception processing unit 104 also receives data indicating the first internal setting transmitted by one of the two control devices 1 connected to the first reception processing unit 104 (step ST303).

[0059] Furthermore, the second reception processing unit 108 receives data indicating the first internal setting transmitted by the other of the two control devices 1 connected to the own device (step ST304).

[0060] Next, the setting unit 105 updates the second memory unit 102 with data indicating the first internal setting received by the first receiving processing unit 104, and updates the third memory unit 106 with data indicating the first internal setting received by the second receiving processing unit 108 (step ST305). When updating, the setting unit 105 updates all the data or updates the difference part of the data.

[0061] In the example of Figure 8, the control device 1-1 transmits data indicating its own internal settings (data indicating the internal settings of 1-1) to the control devices 1-3 and 1-2, and also receives data indicating the internal settings of the control device 1-2 from the control device 1-2 (data indicating the internal settings of 1-2) and updates the second memory unit 102 with that data, and receives data indicating the internal settings of the control device 1-3 from the control device 1-3 (data indicating the internal settings of 1-3) and updates the third memory unit 106 with that data. Similarly, in the example of Figure 8, control device 1-2 transmits data indicating its own internal settings (data indicating the internal settings of 1-2) to control device 1-1 and control device 1-3, also receives data indicating the internal settings of control device 1-3 from control device 1-3 (data indicating the internal settings of 1-3) and updates second memory unit 102 with that data, and receives data indicating the internal settings of control device 1-1 from control device 1-1 (data indicating the internal settings of 1-1) and updates third memory unit 106 with that data. Similarly, in the example of Figure 8, control device 1-3 transmits data indicating its own internal settings (data indicating the internal settings of 1-3) to control device 1-2 and control device 1-1, also receives data indicating the internal settings of control device 1-1 from control device 1-1 (data indicating the internal settings of 1-1) and updates the second memory unit 102 with that data, and receives data indicating the internal settings of control device 1-2 from control device 1-2 (data indicating the internal settings of 1-2) and updates the third memory unit 106 with that data.

[0062] In this way, in the control device 1 according to the second embodiment, data indicating internal settings required for controlling the control device itself is held between the two connected control devices 1. Furthermore, the control device 1 according to the second embodiment can update the stored data to the latest state by, for example, periodically transmitting and receiving the data at a low frequency.

[0063] Next, an example of the operation of the control device 1 according to the second embodiment shown in FIG. 7 in the event of an abnormality will be described with reference to FIG.

[0064] In an example of operation of the control device 1 according to embodiment 2 shown in FIG. 7 in the event of an abnormality, as shown in FIG. 9, first, the first transmission processing unit 103 or the second transmission processing unit 107 transmits data indicating internal settings (step ST401). Here, when the first transmission processing unit 103 operates, the first transmission processing unit 103 transmits data indicating the second internal settings stored in the second memory unit 102 to one of the two control units 1 connected to the first transmission processing unit 103. Also, when the second transmission processing unit 107 operates, the second transmission processing unit 107 transmits data indicating the third internal setting stored in the third memory unit 106 to the other of the two control units 1 connected to the second transmission processing unit 1. In other words, when a control device 1 that holds data indicating internal settings suffers a malfunction or the like and is replaced with a new control device 1, the first transmission processing unit 103 or the second transmission processing unit 107 transmits the data indicating the internal settings (data indicating the second internal settings or data indicating the third internal settings) to the new control device 1.

[0065] The first reception processing unit 104 also receives data indicating the second internal setting transmitted by the other of the two control devices 1 connected to the first reception processing unit 104 (step ST402).

[0066] The second reception processing unit 108 also receives data indicating the third internal setting transmitted by one of the two control devices 1 connected to the second reception processing unit 108 (step ST403).

[0067] Next, setting section 105 performs setting in first storage section 101 using at least one of the data indicating the second internal setting received by first reception processing section 104 and the data indicating the third internal setting received by second reception processing section 108 (step ST404). That is, setting section 105 stores the data indicating the second internal setting or the data indicating the third internal setting in first storage section 101 as data indicating the first internal setting.

[0068] In addition, the setting unit 105 may determine that the data is normal when the data indicating the second internal setting received by the first receiving processing unit 104 and the data indicating the third internal setting received by the second receiving processing unit 108 match.

[0069] The example of Fig. 9 shows a case where an abnormality occurs in the control device 1-2 in the control system shown in Fig. 8, and the control device 1-2 is removed and replaced with a spare control device 1-2. Note that an initial value is set in the first storage unit 101 of the spare control device 1-2. In this case, the control device 1-2 makes a data request to at least one of the control devices 1-1 and 1-3. As a result, the control device 1-2 can receive at least one of the data indicating the second internal setting from the control device 1-1 (data indicating the internal setting of 1-2) and the data indicating the second internal setting from the control device 1-3 (data indicating the internal setting of 1-2), and can set the first storage unit 101 using that data.

[0070] In this way, in the control device 1 according to the second embodiment, data indicating internal settings is stored between the connected control devices 1, and when replacement occurs due to a malfunction or the like, settings are made using the data stored in the partner control device 1. This makes it possible for the control device 1 according to the second embodiment to set internal settings without using an external device such as a PC tool. Furthermore, in the control device 1 according to the second embodiment, data indicating the internal settings of the device itself is held by two control devices 1. Therefore, in the control device 1 according to the second embodiment, even if there is an abnormality in the data held in one of the two control devices 1, the setting can be performed using the data held in the other control device 1, thereby enabling more reliable recovery.

[0071] Furthermore, the control device 1 according to the second embodiment compares the data held in the two control devices 1, and if the two data match, it can determine that the data is normal. This increases safety during recovery in the control device 1 according to the second embodiment.

[0072] As described above, according to this embodiment 2, the control device 1 includes a third memory unit 106 that stores data indicating the internal settings required for controlling the other of the two control devices 1 connected to the device as data indicating the third internal settings, a second transmission processing unit 107 that transmits the data indicating the third internal settings stored in the third memory unit 106 to the other of the two control devices 1 connected to the device, and a second receiving processing unit 108 that receives the data indicating the third internal settings transmitted by one of the two control devices 1 connected to the device, and the setting unit 105 performs setting on the first memory unit 101 using at least one of the data indicating the second internal settings received by the first receiving processing unit 104 and the data indicating the third internal settings received by the second receiving processing unit 108. As a result, in the control device 1 according to the second embodiment, in addition to the effect of the first embodiment, recovery can be more reliably achieved.

[0073] Furthermore, according to this embodiment 2, the first transmission processing unit 103 transmits data indicating the first internal setting stored in the first memory unit 101 to the other control device 1 of the two control devices 1 connected to the device, the first reception processing unit 104 receives data indicating the first internal setting transmitted by one of the two control devices 1 connected to the device, the second transmission processing unit 107 transmits data indicating the first internal setting stored in the first memory unit 101 to one of the two control devices 1 connected to the device, the second reception processing unit 108 receives data indicating the first internal setting transmitted by the other of the two control devices 1 connected to the device, and the setting unit 105 updates the second memory unit 102 with the data indicating the first internal setting received by the first reception processing unit 104, and updates the third memory unit 106 with the data indicating the first internal setting received by the second reception processing unit 108. As a result, in the control device 1 according to the second embodiment, it is possible to make the data indicating the first internal setting held in the counterpart control device 1 the latest data.

[0074] Furthermore, according to this embodiment 2, the setting unit 105 determines that the data indicating the second internal setting received by the first receiving processing unit 104 and the data indicating the third internal setting received by the second receiving processing unit 108 are correct if the two pieces of data match. As a result, in the control device 1 according to the second embodiment, in addition to the effects of the first embodiment, safety during recovery is increased.

[0075] It should be noted that the embodiments may be freely combined, or any of the components in each embodiment may be modified, or any of the components in each embodiment may be omitted. [Explanation of symbols]

[0076] 1. Control device 101 First memory unit 102 Second memory unit 103 First transmission processing unit 104 First receiving processing unit 105 Settings 106 Third Memory Unit 107 Second transmission processing unit 108 Second receiving processing unit

Claims

1. a first storage unit that stores data indicating internal settings necessary for controlling the device itself as data indicating first internal settings; a second storage unit that stores data indicating internal settings necessary for controlling a control device connected to the device itself as data indicating second internal settings; a first transmission processing unit that transmits data indicating the second internal setting stored in the second storage unit to a control device connected to the device itself; a first receiving processor that receives data indicating a second internal setting transmitted by a control device connected to the device itself; a setting unit that sets the first storage unit based on data indicating the second internal setting received by the first receiving processing unit; A control device comprising:

2. the first transmission processing unit transmits data indicating the first internal setting stored in the first storage unit to a control device connected to the device itself; the first reception processing unit receives data indicating a first internal setting transmitted by a control device connected to the device itself; The setting unit updates the second storage unit with data indicating the first internal setting received by the first reception processing unit.

2. The control device according to claim 1.

3. the second storage unit stores data indicating internal settings necessary for control of one of the two control devices connected to the device itself as data indicating second internal settings; the first transmission processing unit transmits data indicating the second internal setting stored in the second storage unit to one of two control devices connected to the device itself; The first receiving processing unit receives data indicating a second internal setting transmitted by the other of the two control devices connected to the device itself.

2. The control device according to claim 1.

4. the first transmission processing unit transmits data indicating the first internal setting stored in the first storage unit to the other of the two control devices connected to the device itself; the first reception processing unit receives data indicating a first internal setting transmitted by one of two control devices connected to the device itself; The setting unit updates the second storage unit with data indicating the first internal setting received by the first reception processing unit.

4. The control device according to claim 3.

5. a third storage unit that stores data indicating internal settings necessary for controlling the other of the two control devices connected to the own device as data indicating third internal settings; a second transmission processing unit that transmits data indicating the third internal setting stored in the third storage unit to the other of the two control devices connected to the device itself; a second receiving processor that receives data indicating a third internal setting transmitted by one of the two control devices connected to the device itself; The setting unit performs setting for the first storage unit using at least one of data indicating second internal settings received by the first reception processing unit and data indicating third internal settings received by the second reception processing unit.

4. The control device according to claim 3.

6. the first transmission processing unit transmits data indicating the first internal setting stored in the first storage unit to the other of the two control devices connected to the device itself; the first reception processing unit receives data indicating a first internal setting transmitted by one of two control devices connected to the device itself; the second transmission processing unit transmits data indicating the first internal setting stored in the first storage unit to one of two control devices connected to the device itself; the second receiving processing unit receives data indicating a first internal setting transmitted by the other of the two control devices connected to the device itself; The setting unit updates the second storage unit with data indicating the first internal setting received by the first reception processing unit, and updates the third storage unit with data indicating the first internal setting received by the second reception processing unit.

6. The control device according to claim 5.

7. The setting unit determines that the data is normal when the data indicating the second internal setting received by the first receiving processing unit and the data indicating the third internal setting received by the second receiving processing unit match.

6. The control device according to claim 5.

8. When updating, the setting unit updates all data or updates differential data.

7. The control device according to claim 2, claim 4 or claim 6.

9. A control method using a control device including a first storage unit that stores data indicating internal settings required for controlling the device itself as data indicating first internal settings, and a second storage unit that stores data indicating internal settings required for controlling a control device connected to the device itself as data indicating second internal settings, a step in which a first transmission processing unit transmits data indicating the second internal setting stored in the second storage unit to a control device connected to the device itself; a step in which a first reception processing unit receives data indicating a second internal setting transmitted by a control device connected to the device itself; a setting unit setting the first storage unit using data indicating the second internal setting received by the first receiving processing unit; A control method comprising:

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