JP7472047B2 - Power generation control input/output module - Google Patents

Description

An embodiment of the present invention relates to an input/output module for power generation control.

The operation of the power generation equipment is controlled by a power generation control device. The power generation control device is equipped with a power generation control input/output module and a CPU module, and control is performed by communication between the power generation equipment components (sensors, actuators, etc.) that make up the power generation equipment and the control logic that makes up the CPU module via the power generation control input/output module.

JP 2017-514246 A Japanese Patent Application Laid-Open No. 9-81201 Patent No. 2845606

When an abnormality occurs in communication between the control logic and the power generation control input/output module, it may be difficult to properly control the operation of the power generation equipment. Even when multiple control logics are installed, control is stopped during the transition from the normal control logic to the standby control logic, making it difficult to properly control the operation of the power generation equipment.

The problem that this invention aims to solve is to provide an input/output module for power generation control that can appropriately control the operation of power generation equipment even if a communication abnormality occurs.

The input/output module for power generation control according to the embodiment includes a communication interface, an internal control logic unit, a diagnostic circuit, and a switching circuit. The communication interface performs communication between a power generation facility component and an external control logic unit. The internal control logic unit is configured to input and output signals between the power generation facility component and the external control logic unit. The diagnostic circuit performs diagnosis as to whether or not an abnormality has occurred in the communication between the external control logic unit and the communication interface. When the diagnostic circuit determines that an abnormality has occurred in the communication between the external control logic unit and the communication interface, the switching circuit switches the output of a signal from the external control logic unit to the power generation facility component to the output of a signal from the internal control logic unit to the power generation facility component. The internal control logic unit includes a control signal generating unit that generates a first output control signal, an evaluation unit that performs evaluation by comparing the first output control signal generated in the control signal generating unit with the second output control signal generated in the external control logic unit, and a correction coefficient generating unit that generates a correction coefficient for correcting the first output control signal based on the evaluation result evaluated by the evaluation unit.

FIG. 1 is a diagram illustrating an outline of a power generation control device according to a first embodiment. FIG. 2 is a diagram illustrating an outline of a power generation control device according to the second embodiment. FIG. 3 is a diagram illustrating an outline of a power generation control device according to a third embodiment. FIG. 4 is a block diagram showing a schematic configuration of an internal control logic unit 30 in a power generation control input/output module 1a according to the fourth embodiment. FIG. 5 is a block diagram showing a schematic configuration of an internal control logic unit 30 in a power generation control input/output module 1a according to a modified example of the fourth embodiment.

First Embodiment
[A] Overall Configuration FIG. 1 is a diagram showing a schematic overview of a power generation control device according to a first embodiment.

As shown in FIG. 1, the power generation control device of this embodiment includes multiple power generation control input/output modules 1a-1n and a CPU module 100, and is configured to generate power in the power generation facility by controlling the operation of the power generation facility components that make up the power generation facility (not shown).

[A-1] Power generation control input/output modules 1a to 1n
In this embodiment, the power generation control input/output module 1a has a communication interface 10, a diagnostic circuit 20, an internal control logic unit 30, a switching circuit 41, a switching circuit 42, an input/output control circuit 50, a digital input circuit 61, an analog input circuit 62, a digital output circuit 71, and an analog output circuit 72. Although not shown in the figure, the power generation control input/output modules 1a to 1n other than the power generation control input/output module 1a are also configured in the same manner as the power generation control input/output module 1a. Details of each component of the power generation control input/output module 1a will be described later.

[A-2] CPU module 100
The CPU module 100 is configured to receive signals from each of the plurality of power generation control input/output modules 1a to 1n, and to output signals to each of the plurality of power generation control input/output modules 1a to 1n.

The CPU module 100 has an external control logic unit 101. The external control logic unit 101 includes an arithmetic unit (not shown) and a memory device (not shown), and is configured so that the arithmetic unit performs arithmetic processing using a program stored in the memory device. For example, the external control logic unit 101 is configured to output an output signal in response to an input signal using a function or lookup table that associates an input signal with an output signal that is output for control.

The external control logic unit 101 receives, for example, signals output by power generation equipment components that make up the power generation equipment (not shown) as input signals via each of a plurality of power generation control input/output modules 1a to 1n. The external control logic unit 101 generates control signals for controlling the power generation equipment based on the input signals input from each unit. The control signals generated in the external control logic unit 101 are output as output signals from the CPU module 100 via each of a plurality of power generation control input/output modules 1a to 1n to the power generation equipment components that make up the power generation equipment (not shown).

[A-3] Power Generation Facility Constituent Devices The power generation facility constituent devices are, for example, a fault contact 201, a sensor 202, a relay 211, and an actuator 212.

The fault contact 201 and the sensor 202 are devices (first power generation equipment components) for outputting signals to be input to the external control logic unit 101 and the internal control logic unit 30. The fault contact 201 is a digital device, and the sensor 202 is an analog device. The fault contact 201 outputs data detected regarding a fault as a signal S201. The sensor 202 outputs data detected regarding, for example, the opening degree of a valve as a signal S202.

The relay 211 and the actuator 212 are devices (second power generation equipment components) through which signals output from the external control logic unit 101 or the internal control logic unit 30 are input via each unit. The relay 211 is a digital device, and the actuator 212 is an analog device. The relay 211 is configured to output power by performing a switching operation based on a signal S71 output by the digital output circuit 71. The actuator 212 is an analog device, and is configured to be driven based on a signal S72 output by the analog output circuit 72.

[B] Detailed Configuration of Power Generation Control Input/Output Module 1a The details of each part constituting the power generation control input/output module 1a will be described in order.

[A-1] Communication interface 10
The communication interface 10 is configured to perform communication with an external control logic unit 101 provided outside the power generation control input/output module 1a.

The communication interface 10 is configured to output a signal S10a to the switching circuit 41 and a signal S10b to the switching circuit 42. The communication interface 10 is configured to output a signal S10c to the internal control logic unit 30 and a signal S10d to the diagnostic circuit 20.

[A-2] Diagnostic circuit 20
The diagnostic circuit 20 is configured such that the arithmetic unit performs arithmetic processing using a program stored in the memory device. The diagnostic circuit 20 receives a signal S10d output from the communication interface 10. The diagnostic circuit 20 outputs a signal S20a to the switching circuits 41 and 42, and also outputs a signal S20b to the communication interface 10.

In this embodiment, the diagnostic circuit 20 diagnoses whether an abnormality (including a communication stop) has occurred in the communication between the external control logic unit 101 and the communication interface 10 based on the result of the signal S10d input from the communication interface 10 after outputting the signal S20b to the communication interface 10. For example, if the signal S10d is not input from the communication interface 10 after outputting the signal S20b to the communication interface 10, the diagnostic circuit 20 determines that an abnormality has occurred. Then, for example, when the diagnostic circuit 20 determines that a communication abnormality has occurred, it outputs the signal S20a to the switching circuit 41 and the switching circuit 42.

[A-3] Internal control logic unit 30
The internal control logic unit 30 is configured such that the arithmetic unit performs arithmetic processing using a program stored in the memory device. For example, the internal control logic unit 30 is configured to output an output signal in response to an input signal using a function or a lookup table that associates an input signal with an output signal that is output for control.

In this embodiment, the internal control logic unit 30 receives the signals S50a and S50b output from the input/output control circuit 50. The internal control logic unit 30 then outputs the signal S30a to the switching circuit 41 and the signal S30b to the switching circuit 42.

The internal control logic unit 30 performs arithmetic processing based on the input signals S50a and S50b to generate control signals for controlling the operation of the relay 211 and the actuator 212, and outputs the control signals as signals S30a and S30b.

In addition, the internal control logic unit 30 receives the signal S10c output from the communication interface 10 and outputs a signal S30c to the communication interface 10.

[A-4] Switching circuit 41, switching circuit 42
The switching circuit 41 is configured to include a switch. The switching circuit 41 receives the signal S20a output by the diagnostic circuit 20 and the signal S10a output by the communication interface 10, as well as the signal S30a output by the internal control logic unit 30. The switching circuit 41 also outputs a signal S41 to the input/output control circuit 50.

The switching circuit 41 outputs one of the signal S10a output by the communication interface 10 and the signal S30a output by the internal control logic unit 30 as a signal S41 to the input/output control circuit 50 in response to the signal S20a output by the diagnostic circuit 20.

For example, when the diagnostic circuit 20 determines that a communication abnormality has occurred and the signal S20a is input from the diagnostic circuit 20 to the switching circuit 41, the switching circuit 41 outputs the signal S30a output from the internal control logic unit 30 to the input/output control circuit 50 as the signal S41. On the other hand, when the diagnostic circuit 20 determines that there is no communication abnormality and the signal S20a is not input from the diagnostic circuit 20 to the switching circuit 41, the switching circuit 41 outputs the signal S10a output from the communication interface 10 (the control signal output by the external control logic unit 101) to the input/output control circuit 50 as the signal S41.

The switching circuit 42 is configured to include a switch, similar to the switching circuit 41. The switching circuit 42 receives the signal S20a output by the diagnostic circuit 20 and the signal S10b output by the communication interface 10, as well as the signal S30b output by the internal control logic unit 30. The switching circuit 42 also outputs a signal S42 to the input/output control circuit 50.

The switching circuit 42 outputs one of the signal S10b output by the communication interface 10 and the signal S30b output by the internal control logic unit 30 as a signal S42 to the input/output control circuit 50 in response to the signal S20a output by the diagnostic circuit 20.

For example, when the diagnostic circuit 20 determines that a communication abnormality has occurred and the signal S20a is input from the diagnostic circuit 20 to the switching circuit 42, the switching circuit 42 outputs the signal S30b output by the internal control logic unit 30 to the input/output control circuit 50 as the signal S42. On the other hand, when the diagnostic circuit 20 determines that there is no communication abnormality and the signal S20a is not input from the diagnostic circuit 20 to the switching circuit 42, the switching circuit 42 outputs the signal S10b output from the communication interface 10 (the control signal output by the external control logic unit 101) to the input/output control circuit 50 as the signal S42.

[A-5] Input/output control circuit 50
The input/output control circuit 50 is a register and is configured to output a signal S61 input from the digital input circuit 61 to the internal control logic unit 30 as a signal S50a, and to output a signal S62 input from the analog input circuit 62 to the internal control logic unit 30 as a signal S50b.

The input/output control circuit 50 also outputs the signal S41 input from the switching circuit 41 to the digital output circuit 71 as a signal S50c, and outputs the signal S42 input from the switching circuit 42 to the analog output circuit 72 as a signal S50d.

[A-6] Digital input circuit 61, analog input circuit 62
The digital input circuit 61 (input circuit) includes, for example, a filter circuit, and is configured to output a signal S201 (digital signal) input from the fault contact 201 to the input/output control circuit 50 as a signal S61 (digital signal).

The analog input circuit 62 (input circuit) includes, for example, a filter circuit, and is configured to output the signal S202 (analog signal) input from the sensor 202 to the input/output control circuit 50 as a signal S62 (digital signal).

[A-7] Digital output circuit 71, analog output circuit 72
The digital output circuit 71 (output circuit) includes, for example, a filter circuit, and is configured to output the signal S50c (digital signal) input from the input/output control circuit 50 to the relay 211 as a signal S71 (digital signal).

The analog output circuit 72 (output circuit) includes, for example, a filter circuit, and is configured to output the signal S50d (digital signal) input from the input/output control circuit 50 to the actuator 212 as a signal S72 (analog signal).

[C] Operation The operation of the power generation control input/output module 1a will be described.

As described above, in the power generation control input/output module 1a, the signal S201 input from the fault contact 201 to the digital input circuit 61 is input from the digital input circuit 61 to the input/output control circuit 50 as a signal S61. In addition, the signal S202 input from the sensor 202 to the analog input circuit 62 is input from the analog input circuit 62 to the input/output control circuit 50 as a signal S62.

The signal S61 input to the input/output control circuit 50 is output from the input/output control circuit 50 to the communication interface 10 and the internal control logic unit 30 as a signal S50a. In addition, the signal S62 input to the input/output control circuit 50 is output from the input/output control circuit 50 to the communication interface 10 and the internal control logic unit 30 as a signal S50b.

The signals S61 and S62 input to the communication interface 10 are output from the communication interface 10 to the external control logic unit 101. In the external control logic unit 101, a control signal for controlling the operation of the relay 211 and the operation of the actuator 212 is generated based on the input signals (signals S61, S62, etc.), and the control signal is output to the communication interface 10. The control signal output from the external control logic unit 101 to the communication interface 10 is output from the communication interface 10 to the switching circuit 41 and the switching circuit 42 as signals S10a and S10b.

In the internal control logic unit 30, control signals for controlling the operation of the relay 211 and the actuator 212 are generated based on the input signals S50a and S50b, and the control signals are output from the internal control logic unit 30 to the switching circuit 41 and the switching circuit 42 as signals S30a and S30b.

When the diagnostic circuit 20 determines that no abnormality has occurred in the communication between the external control logic unit 101 and the communication interface 10 (normal operation), as described above, the signal S20a is not input from the diagnostic circuit 20 to the switching circuit 41 and the switching circuit 42. At this time, the switching circuit 41 outputs the signal S10a output from the communication interface 10 to the input/output control circuit 50 as the signal S41. In addition, the switching circuit 42 outputs the signal S10b output from the communication interface 10 to the input/output control circuit 50 as the signal S42.

In contrast, when the diagnostic circuit 20 determines that an abnormality has occurred in the communication between the external control logic unit 101 and the communication interface 10 (when an abnormality occurs), as described above, the diagnostic circuit 20 inputs a signal S20a to the switching circuit 41 and the switching circuit 42. At this time, the switching circuit 41 outputs the signal S30a output from the internal control logic unit 30 to the input/output control circuit 50 as a signal S41. In addition, the switching circuit 42 outputs the signal S30b output from the internal control logic unit 30 to the input/output control circuit 50 as a signal S42.

The signal S41 output from the switching circuit 41 to the input/output control circuit 50 is output as a signal S50c to the digital output circuit 71. The signal S50c output to the digital output circuit 71 is then output from the digital output circuit 71 to the relay 211 as a signal S71. The signal S42 output from the switching circuit 42 to the input/output control circuit 50 is output as a signal S50d to the analog output circuit 72. The signal S50d output to the analog output circuit 72 is then output from the analog output circuit 72 to the actuator 212 as a signal S72.

[D] Summary As described above, in the power generation control input/output module 1a of this embodiment, the communication interface 10 is provided to perform communication between the power generation facility constituent devices (relay 211, actuator 212, fault contact 201, sensor 202, etc.) and the external control logic unit 101. The diagnostic circuit 20 is provided to diagnose whether or not an abnormality has occurred in the communication between the external control logic unit 101 and the communication interface 10. The internal control logic unit 30 is configured to input and output signals between the power generation facility constituent devices.

The digital input circuit 61 and analog input circuit 62 are interposed between the power generation equipment components (fault contact 201, sensor 202) and the communication interface 10, and are also interposed between the power generation equipment components (fault contact 201, sensor 202) and the internal control logic unit 30. The digital output circuit 71 and analog output circuit 72 are interposed between the power generation equipment components (relay 211, actuator 212) and the communication interface 10 via the switching circuits 41 and 42, and are also interposed between the power generation equipment components (relay 211, actuator 212) and the internal control logic unit 30 via the switching circuits 41 and 42.

When the diagnostic circuit 20 determines that an abnormality has occurred in the communication between the external control logic unit 101 and the communication interface 10, the switching circuit 41 and the switching circuit 42 switch the output of signals from the external control logic unit 101 to the power generation equipment components (relay 211, actuator 212) to the output of signals from the internal control logic unit 30 to the power generation equipment components (relay 211, actuator 212).

For this reason, in this embodiment, even if an abnormality occurs in the communication between the external control logic unit 101 and the communication interface 10, the operation of the power generation equipment can be appropriately controlled by the control signal output by the internal control logic unit 30. In other words, the operation of the power generation equipment can be continued by control by the power generation control input/output module 1a alone.

[E] Modifications In the above embodiment, the power generation facility configuration devices include the relay 211, the actuator 212, the fault contact 201, and the sensor 202, but this is not limiting. In a case where the power generation facility configuration devices include devices other than the relay 211, the actuator 212, the fault contact 201, and the sensor 202, the power generation control input/output module 1a shown in the above embodiment may be used.

Second Embodiment
[A] Configuration FIG. 2 is a diagram showing a schematic overview of a power generation control device according to a second embodiment.

As shown in FIG. 2, in this embodiment, the digital input circuit 61, the analog input circuit 62, the digital output circuit 71, and the analog output circuit 72 are configured to be interchangeable. Except for this point and related points, this embodiment is configured in the same way as the first embodiment. Therefore, a description of the overlapping parts will be omitted.

[B] Summary In this embodiment, even if the power generation equipment components are changed to different equipment, this can be accommodated by simply replacing the digital input circuit 61, the analog input circuit 62, the digital output circuit 71, and the analog output circuit 72.

Third Embodiment
[A] Configuration FIG. 3 is a diagram showing a schematic overview of a power generation control device according to a third embodiment.

As shown in FIG. 3, in this embodiment, part of the configuration of the communication interface 10 of the power generation control input/output module 1a is different from that of the second embodiment (see FIG. 2). Except for this point and related points, this embodiment is configured in the same way as the second embodiment. Therefore, a description of the overlapping parts will be omitted.

In this embodiment, the communication interface 10 of the power generation control input/output module 1a includes an intercommunication unit 11. The intercommunication unit 11 is an interface that communicates with other power generation control input/output modules 1b to 1n.

For this reason, in this embodiment, signals are input to the intercommunication unit 11 from other power generation facility components via the other power generation control input/output modules 1b to 1n. The signal input to the intercommunication unit 11 is input to the internal control logic unit 30 from the communication interface 10 as signal S10c.

In this embodiment, the internal control logic unit 30 can generate control signals for controlling the operation of the relay 211 and the actuator 212 based on more information.

[B] Summary Therefore, in this embodiment, even if an abnormality occurs in the communication between the external control logic unit 101 and the communication interface 10, the operation of the power generation equipment can be more appropriately controlled by the high-precision control signal output by the internal control logic unit 30.

Fourth Embodiment
[A] Configuration FIG. 4 is a block diagram showing a schematic configuration of the internal control logic unit 30 in the power generation control input/output module 1a according to the fourth embodiment.

As shown in FIG. 4, the internal control logic unit 30 of this embodiment differs from that of the third embodiment (see FIG. 3). Except for this point and related points, this embodiment is similar to the third embodiment. Therefore, explanations of overlapping points will be omitted as appropriate.

In this embodiment, the internal control logic unit 30 has a control signal generation unit 31, an evaluation unit 32, and a correction coefficient generation unit 33, as shown in FIG. 4.

The control signal generating unit 31 generates and outputs a signal S30b (first output control signal) for controlling the operation of the actuator 212, for example, based on a signal S50b input in response to the detection result of the sensor 202. For example, the control signal generating unit 31 outputs a signal S30b in response to the input signal S50b, using a function or lookup table that associates the signal S50b with the signal S30b output for control.

The evaluation unit 32 receives the signal S30b generated by the control signal generation unit 31. At the same time, the evaluation unit 32 receives the signal S10c (second output control signal) from the communication interface 10. The signal S10c input from the communication interface 10 to the evaluation unit 32 is a control signal generated by the external control logic unit 101 to control the operation of the actuator 212 based on the signal S50b input in response to the detection result of the sensor 202. The evaluation unit 32 performs an evaluation by comparing the signal S30b input from the control signal generation unit 31 with the signal S10c input from the external control logic unit 101 via the communication interface 10.

The correction coefficient generating unit 33 generates a correction coefficient for correcting the signal S30b generated by the control signal generating unit 31 based on the evaluation results evaluated by the evaluating unit 32.

The control signal generating unit 31 receives a correction coefficient corresponding to the input signal S50b from the correction coefficient generating unit 33 as a signal S33, and uses it to correct the output signal S30b.

[B] Summary As described above, in this embodiment, the signal S30b that the internal control logic unit 30 outputs to the switching circuit 42 for control can be made to approach the signal S50b that the external control logic unit 101 outputs to the switching circuit 42 for control by correction. In other words, the learning function can make the control of the internal control logic unit 30 closer to the control of the external control logic unit 101.

Therefore, in this embodiment, even if an abnormality occurs in the communication between the external control logic unit 101 and the communication interface 10, the operation of the power generation equipment can be more appropriately controlled by the highly accurate control signal output by the internal control logic unit 30.

For ease of understanding, FIG. 4 illustrates an example in which the internal control logic unit 30 generates and outputs a control signal S30b based on an input signal S50b. The signal S50a input to the internal control logic unit 30 in FIG. 3 and the signal S30b output from the internal control logic unit 30 are omitted in FIG. 4. However, it goes without saying that the internal control logic unit 30 may generate and output the control signals S30a and S30b based on the input signals S50a and S50b in the same manner as described above.

[C] Modifications In the above embodiment, the external control logic unit 101 and the internal control logic unit 30 are
Although the above description has been given of a case where feedback control is performed in which a measured value is compared with a target value and operation is controlled so as to match the measured value with the target value, the present invention is not limited to this. The external control logic unit 101 and the internal control logic unit 30 may be configured to perform sequence control in which control is carried out in a predetermined order.

Figure 5 is a block diagram that shows a schematic configuration of the internal control logic unit 30 in a power generation control input/output module 1a according to a modified example of the fourth embodiment.

As shown in FIG.
In the internal control logic unit 30 of this modified example, the control signal generating unit 31 receives the signal S10c from the communication interface 10, as does the evaluation unit 32. The signal S10c received from the communication interface 10 is a control signal output by the external control logic unit 101 to perform sequence control. In response to the received signal S10c, the control signal generating unit 31 generates and outputs, for example, a signal S30b (first output control signal) for controlling the operation of the actuator 212. Here, the control signal generating unit 31 predicts and outputs the pattern of the signal S30b for performing control during the duration after the predicted time from the pattern of the signal S10c at the predicted time.

In this modified example, the evaluation unit 32 performs an evaluation by comparing the signal S30b input from the control signal generation unit 31 with the signal S10c input from the external control logic unit 101 via the communication interface 10, as in the above embodiment. The correction coefficient generation unit 33 generates a correction coefficient for correcting the signal S30b generated in the control signal generation unit 31 based on the evaluation result of the evaluation unit 32. The correction coefficient corresponding to the input signal S10b is input to the control signal generation unit 31 from the correction coefficient generation unit 33 as a signal S33, and is used to correct the output signal S30b.

As described above, in this modified example, even if a communication abnormality occurs during sequence control, the operation of the power generation equipment can be more appropriately controlled by the highly accurate control signal output by the internal control logic unit 30, as in the above embodiment.

＜Other＞
Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims.

1a-1n: Input/output module for power generation control, 10: Communication interface, 11: Intercommunication unit, 20: Diagnostic circuit, 30: Internal control logic unit, 31: Control signal generation unit, 32: Evaluation unit, 33: Correction coefficient generation unit, 41: Switching circuit, 42: Switching circuit, 50: Input/output control circuit, 61: Digital input circuit, 62: Analog input circuit, 71: Digital output circuit, 72: Analog output circuit, 100: CPU module, 101: External control logic unit, 201: Fault contact, 202: Sensor, 211: Relay, 212: Actuator

Claims (3)

A communication interface for communicating between the power generation facility components and an external control logic unit;
An internal control logic unit configured to input and output signals between the power generation facility constituent devices;
a diagnostic circuit for diagnosing whether or not an abnormality has occurred in the communication between the external control logic unit and the communication interface; and a switching circuit for switching, when the diagnostic circuit determines that an abnormality has occurred in the communication between the external control logic unit and the communication interface, an output of a signal from the external control logic unit to the power generation facility constituent device to an output of a signal from the internal control logic unit to the power generation facility constituent device ,
The internal control logic unit includes:
a control signal generating unit that generates a first output control signal;
an evaluation unit that performs evaluation by comparing a first output control signal generated in the control signal generation unit with a second output control signal generated in the external control logic unit;
a correction coefficient generating unit that generates a correction coefficient for correcting the first output control signal based on an evaluation result obtained by the evaluation unit;
having
Input/output module for power generation control. The power generation facility constituent equipment includes:
a first power generation facility component that outputs a signal to be input to the external control logic unit and the internal control logic unit;
a second power generation facility constituent device to which a signal output from the external control logic unit or the internal control logic unit is input,
an input circuit interposed between the first power generation facility component and the communication interface and between the first power generation facility component and the internal control logic unit;
an output circuit that is interposed between the second power generation facility component device and the communication interface via the switching circuit, and is interposed between the second power generation facility component device and the internal control logic unit via the switching circuit;
a signal is input from the first power generation facility constituent device to the communication interface and the internal control logic unit via the input circuit;
When the diagnostic circuit determines that the abnormality does not occur, the switching circuit outputs a signal from the communication interface to the second power generation facility constituent device via the output circuit;
when the diagnostic circuit determines that the abnormality has occurred, the switching circuit outputs a signal from the internal control logic unit to the second power generation facility constituent device via the output circuit,
The input circuit and the output circuit are configured to be interchangeable.
2. The power generation control input/output module according to claim 1. The communication interface is configured to communicate with other power generation control input/output modules.
3. The power generation control input/output module according to claim 1 or 2.

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