JP2009110071A - Control device, control server and control method for facility equipment, monitoring control system for facility and control program for control equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device for monitoring facility to prevent any erroneous operation in a control device of each facility equipment connected to a central monitoring control device by a simple operation in the maintenance check of the central monitoring control device. <P>SOLUTION: This control device for facility equipment includes: a control signal output module (DO) 113 for acquiring a control signal for controlling facility equipment from a central monitoring control device (HIS) 1, and for outputting it to the facility equipment; a keep relay 115 for, when acquiring an output inhibition signal to lock the output of the control signal to the facility equipment, shifting to such a state that a power source is supplied; a lock circuit 116 for locking the output of the control signal to the facility equipment when the power source of the keep relay 115 is supplied; and a DI112 for, when the state that the power source is supplied to the keep relay 115 is detected, generating a keep relay state signal showing the state, and for notifying the HIS1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an equipment control device, equipment equipment control server, equipment equipment control method, equipment monitoring control system, and control equipment control program for monitoring and controlling a load device and a switch, which are equipment such as office buildings and factories. About.

  In large-scale facilities such as office buildings and factories, various devices are installed as power supply facilities.

  The equipment installed as this power supply equipment includes transformers that drop the extra high voltage from the power company to the supply voltage, circuit breakers for protection and maintenance of transformers and load devices, and disconnectors Devices, measuring instruments used for measuring the current, voltage, power factor, etc. of these devices, and protective relays for detecting device abnormalities.

  The number of these devices may be in the hundreds to tens of thousands, depending on the size of the facility.

  When such a large number of power supply equipment is installed in a large-scale facility, a plurality of device control devices that control the operation of these devices, and the plurality of device control devices are collectively monitored and controlled. A system for managing equipment in the facility is configured by further installing the central monitoring and control device.

  As an example of the management system configured as described above, there is a building management system described in Patent Document 1.

  In this building management system, a control terminal that controls equipment loads and a monitoring terminal that monitors the state of input elements such as sensors and switches are connected to a self-sustained distributed controller that functions as a central monitoring control device via a network. As a result, the equipment load in the facility is monitored and controlled.

  By constructing a system for monitoring and controlling the inside of the facility in this way, for example, in the central supervisory control device, the monitoring signal of the switching state of each switch scattered in the facility, the failure signal, etc. are fetched and the switching control signal is output It is possible to issue a warning at the time of a failure, manage a large number of each equipment in the facility in a lump, and perform stable power supply.

In addition, when performing maintenance / inspection for each equipment in these facilities, the operator can set the target device in a no-voltage and no-current state by performing a remote operation from the central monitoring and control device.
JP 2003-284160 A

  However, when performing maintenance and inspection of the central supervisory control device itself, the central supervisory control device must be turned off and on again, and when the power is turned on again, malfunctions may occur in the terminal device control device. There was a problem of having sex.

  Specifically, the malfunction is an unexpected power-off or the like caused by a deficiency in the initialization process in the device control apparatus that controls the power receiving switch.

  If a power outage occurs due to unexpected power shutoff, etc., depending on the position of the equipment control device, damage to facilities operation, trouble with electronic equipment (generators, elevators, etc.), fire, etc. Equipment control devices installed in parts that have a large impact on the power supply of the entire facility, such as these electronic devices and extra high power receiving units, are particularly required to be reliable and reliable. The

  Therefore, when performing maintenance and inspection of the central monitoring and control device, it is possible to reliably prevent malfunctions by switching the mode in advance so that no signal is received from the outside in the equipment control device. There is a problem that a worker has to go to the place of each equipment control device and perform it manually, which is troublesome.

  Accordingly, an object of the present invention is to simplify malfunctions in each equipment control device during maintenance inspection of the central monitoring control device in a management system that manages and manages a plurality of equipment control devices in a facility by the central monitoring control device. It is to provide an equipment control device, equipment control server, equipment control method, equipment monitoring control system, and control equipment control program that can be prevented by simple operation.

  In order to achieve the above object, the equipment control device of the present invention is connected to equipment installed in a facility, and is used as a central monitoring control apparatus that monitors and controls the state of a plurality of the equipment. When the control signal for controlling the equipment is acquired from the central monitoring control device, the control signal output module outputs the control signal to the equipment, and the equipment from the control signal output module When an output prohibition signal for locking the output of the control signal to is acquired from the central supervisory control device, a keep relay that transitions to a power-on state and a keep relay that transitions to a power-on state Then, a lock circuit that cuts off the power supplied to the control signal output module and locks the output of the control signal to the equipment, A first state input circuit that closes when power is supplied to the keep relay, and a first state signal that indicates that the power is supplied to the keep relay when the first state input circuit is closed A state of transmitting the first status signal to the central supervisory control device in order to determine that the output of the control signal to the facility device is locked due to the power being supplied to the keep relay. And a signal input module.

  In addition, the equipment control apparatus includes an auxiliary relay that transitions to a state in which the power is cut off when the power supplied to the control signal output module by the lock circuit is cut off. The state signal input module indicates that the keep relay is powered on when the first state input circuit is closed. The first state signal is generated, and when the second state input circuit is closed, a second state signal indicating that the power supply of the auxiliary relay is cut off is generated, and a power is supplied to the keep relay. In order to determine that the output of the control signal to the equipment has been locked by turning on the power of the auxiliary relay and turning off the auxiliary relay. The status signal may be transmitted to the central monitoring controller.

  In addition, the equipment control server of the present invention is connected to the equipment control device corresponding to each equipment that controls a plurality of equipment installed in the facility, and controls the state of the equipment Output of a control signal from the equipment control device selected in one central monitoring control device to the equipment, which is connected to a plurality of central monitoring control devices to be monitored and controlled When the output prohibition signal for locking is acquired from the central monitoring control device, it is transmitted to the selected equipment control device, and the output of the control signal from the selected equipment control device to the equipment is locked. A signal to be transmitted to the equipment control device when a lock release signal for canceling is acquired from the central monitoring control device that is the transmission source of the output prohibition signal And a state signal indicating the state of the equipment control device from the equipment control device in response to the output prohibition signal or the lock release signal transmitted from the signal transmission unit. A lock state determination unit that determines whether or not the output of the control signal from the facility device control device to the facility device is locked, and the determination result in the lock state determination unit is the output prohibition signal or the lock release signal A lock state transmission unit for transmitting to the central monitoring and control device that is the transmission source of

  Moreover, the equipment control method of the present invention is connected to equipment installed in the facility, and equipment connected to a central monitoring control device that monitors and controls the state of the plurality of equipment When the control device acquires a control signal for controlling the equipment from the central monitoring control device, a control signal output step for outputting the control signal to the equipment, and the equipment to the equipment in the control signal output step When an output prohibition signal for locking the output of the control signal is acquired from the central supervisory control device, a first transition step for transitioning to a state in which the power of the keep relay in the own device is turned on, and the first transition step When the keep relay is turned on, it is supplied to the control signal output module for executing the control signal output step. A lock processing step for shutting off the power supply and locking the output of the control signal to the equipment, and a first circuit control for closing the first state input circuit in the own device when the keep relay is turned on. And when the first state input circuit is closed by the first circuit control step, a first state signal indicating that the power is supplied to the keep relay is generated, and the keep relay is supplied to the keep relay. A state signal input step of transmitting the first state signal to the central supervisory control device in order to determine that the output of the control signal to the facility device has been locked by turning on the power. It is characterized by.

  Further, in the equipment device control method, in the lock processing step, when the power supplied to the control signal output module is cut off, the auxiliary relay in the device is turned off, and the auxiliary relay is turned on. And a second circuit control step for closing the second state input circuit in the device when the power of the device is cut off. In the state signal input step, the keep-up is performed when the first state input circuit is closed. The keep relay state signal indicating that the relay is powered on is generated, and the auxiliary relay is powered off when the second state input circuit is closed. 2 is generated, and the output of the control signal to the equipment is locked when the power to the keep relay is turned on and the power to the auxiliary relay is turned off. Said first state signal and said second state signal may be transmitted to the central monitoring controller in order to determined to have been.

  Further, the equipment control method according to another aspect of the present invention is connected to the equipment control device corresponding to each equipment to control the plurality of equipment installed in the facility, and the plurality of equipment A facility equipment control server connected via a network to a plurality of central monitoring and control devices that collectively monitor and control the state of the equipment from the equipment control device selected in one central monitoring and control apparatus When the output prohibition signal for locking the output of the control signal to the central monitoring control device is acquired from the central monitoring control device, it is transmitted to the selected equipment control device, and from the selected equipment control device to the equipment When the lock release signal for unlocking the output of the control signal is acquired from the central monitoring control device that is the transmission source of the output prohibition signal, the equipment control When receiving a signal indicating the state of the equipment control device from the equipment control device corresponding to the output prohibition signal or the lock release signal transmitted in the signal transmission step, Based on this state signal, the lock state determination step for determining whether or not the output of the control signal from the facility device control device to the facility device is locked, and the determination result in the lock state determination step is the output prohibition signal. Or a lock state transmission step of transmitting the lock release signal to the central supervisory control device that is a transmission source of the lock release signal.

  The equipment monitoring control system of the present invention includes an equipment control device for controlling equipment installed in the facility, an equipment control server connected to the equipment control device, and a network connected to the equipment control server. A plurality of central monitoring and control devices that collectively monitor and control the state of the plurality of equipment connected via the equipment, and the equipment control server sends control signals to the equipment. If acquired from the central supervisory control device, it transmits to the equipment control device connected to the equipment and outputs an output prohibition signal for locking the output of the control signal to the equipment. To acquire from the device and transmit it to the equipment control device connected to the equipment, and to unlock the output of the control signal for the equipment When the lock release signal is acquired from the central monitoring control device that is the transmission source of the output prohibition signal, the signal transmission unit that transmits to the facility device control device connected to the facility device, and the signal transmitted from the signal transmission unit Based on whether or not a status signal indicating the status of the equipment control device is received from the equipment control device in response to the output prohibition signal or the lock release signal, from the equipment control device to the equipment A lock state server determination unit that determines whether or not the output of the control signal is locked; and the central monitoring control device that is a transmission source of the output prohibition signal or the lock release signal based on a determination result in the lock state server determination unit A lock state transmitting unit for transmitting to the facility equipment control device, wherein the equipment control device transmits a control signal for controlling the equipment to the equipment control server. When acquiring from the signal transmission unit, the control signal output module for outputting the control signal to the facility device, and when the output prohibition signal is acquired from the facility device control server, the power supply is turned on, and the lock When a release signal is acquired from the equipment control server, a keep relay that transitions to a power-off state and a power that has been supplied to the control signal output module when the keep relay power-on is switched off Then, the output of the control signal to the equipment is locked, and when the state of the keep relay is turned off, the power to the control signal output module is turned on to output the control signal to the equipment. A lock circuit that enables, a first state input circuit that closes when power is applied to the keep relay, and the first state input circuit When the circuit is closed, a first state signal indicating that the power is supplied to the keep relay is generated, and the output of the control signal to the equipment is locked when the power is supplied to the keep relay. And a status signal input module for transmitting to the equipment control server in order to determine that it has been performed.

  In addition, the facility monitoring control system includes an auxiliary relay in which the lock circuit transitions to a power-off state when the power supplied to the control signal output module is cut off. The apparatus further includes a second state input circuit that closes when the power of the auxiliary relay is cut off, and the state signal input module powers on the keep relay when the first state input circuit is closed. Generating a keep relay state signal indicating that the auxiliary relay is in a closed state and generating an auxiliary relay state signal indicating that the auxiliary relay is powered off when the second state input circuit is closed. The power of the keep relay is turned on and the power of the auxiliary relay is turned off. The keep relay state signal and said auxiliary relay state signal in order may be transmitted to the equipment control server.

  In addition, an equipment monitoring control system according to another aspect of the present invention includes a plurality of equipment control devices that control equipment installed in a facility, and a plurality of equipment connected to any of these equipment control devices. A device control server, and a plurality of central monitoring and control devices that collectively monitor and control the state of the plurality of facility devices connected to the facility device control server via a network. The first equipment device control server in the equipment device control server of the device transmits the control signal for the connected equipment device from any one of the central monitoring control devices, and transmits the control signal to the equipment device control device connected to the equipment device. When an output prohibition signal for locking the output of the control signal to the equipment is acquired from any of the central monitoring control devices, the equipment is connected to the equipment. Transmit to the equipment control device and connect to the equipment when an unlock signal for unlocking the output of the control signal to the equipment is acquired from the central monitoring control device that is the transmission source of the output prohibition signal A first control signal transmission unit for transmitting to the facility equipment control device, and the facility equipment control device corresponding to the output prohibition signal or the lock release signal transmitted from the signal transmission unit. A first state signal transmission unit that transmits the state signal to the central supervisory control device that is a transmission source of the output prohibition signal or the lock release signal when a state signal indicating a state is received; The first equipment control device connected to the equipment control server receives a control signal for controlling the equipment from the signal transmission unit of the equipment control server. Then, when the first control signal output module that outputs the control signal to the facility device and the output prohibition signal is acquired from the facility device control server, a transition is made to a power-on state, and the lock release signal is transmitted to the facility device. A keep relay that transitions to a power-off state when acquired from the device control server, and a power supply that has been supplied to the control signal output module when the keep relay power-on state is cut off and the equipment device The control signal output to the device is locked and the auxiliary relay in the device is turned off, and when the keep relay is turned off, the control signal output module is turned on to turn on the equipment. A first lock circuit that enables a control signal to be output to the auxiliary relay and that powers the auxiliary relay, and supplies power to the keep relay. A first state input circuit that closes when the source is turned on, a second state input circuit that closes when the power of the auxiliary relay is turned off, and a third state input that closes when the power of the auxiliary relay is turned off When the circuit and the first state input circuit are closed, the first state signal indicating that the power is supplied to the keep relay is generated and the second state input circuit is closed. A first state signal input module that generates a second state signal indicating that the auxiliary relay is powered off and transmits the second state signal to the first facility device control server, and the first facility device. Unlike the control server, the second equipment device control server connected to the second equipment device control device among the plurality of equipment device control devices is connected to the first equipment device from the connected second equipment device control device. Control unit A second status signal transmitter for transmitting the status signal to the central supervisory control device that is the transmission source of the output prohibition signal or the lock release signal when the status signal indicating the status is received; When the third state input circuit is closed, the control device generates a third state signal indicating that the power supply of the auxiliary relay is cut off and transmits the third state signal to the second equipment device control server. A two-state signal input module, wherein the central monitoring and control device includes a first state signal and a second state signal acquired from the first state signal transmission unit of the first equipment device control server; When receiving the third status signal acquired from the second status signal transmitter of the equipment control server, the keep relay is powered on based on these status signals and the auxiliary relay Source is characterized by having a lock state central determination unit determines that the output of the control signal to the equipment is locked by cut.

  Further, the equipment control program of the present invention is connected to equipment installed in the facility, and equipment connected to a central monitoring control device that monitors and controls the state of the plurality of equipment When a control signal for controlling the equipment is acquired from the central monitoring control device, a control signal output function for outputting the control signal to the equipment and the equipment to the equipment in the control signal output function. In the first transition function, when the output prohibition signal for locking the output of the control signal is acquired from the central supervisory control device, the first transition function for transitioning to the state in which the power of the keep relay in the own device is turned on When the keep relay power is turned on, the power supplied to the control signal output module for executing the control signal output function is changed. A lock processing function for cutting off and locking the output of the control signal to the equipment, a first circuit control function for closing the first state input circuit in the device when the keep relay is powered on, When the first state input circuit is closed by the first circuit control function, a first state signal indicating that the power is supplied to the keep relay is generated, and the power is supplied to the keep relay. And a status signal input function for transmitting the first status signal to the central supervisory control device in order to determine that the output of the control signal to the equipment is locked. .

  Further, in the lock processing function, when the power supplied to the control signal output module is cut off, the equipment control program makes a transition to a state in which the power of the auxiliary relay in the own device is cut off, and the auxiliary relay And a second circuit control function for closing the second state input circuit in the device when the power is turned off. In the state signal input function, the keep-up is performed when the first state input circuit is closed. The keep relay state signal indicating that the relay is powered on is generated, and the auxiliary relay is powered off when the second state input circuit is closed. 2 status signal is generated, and the power of the keep relay is turned on and the power of the auxiliary relay is turned off to lock the output of the control signal to the equipment. Said first state signal and said second state signal may be transmitted to the central monitoring controller in order to determine what was.

  In addition, the equipment control program according to another aspect of the present invention is connected to the equipment control apparatus corresponding to each equipment that controls the plurality of equipment installed in the facility, and the plurality of equipment From the equipment control device selected in one central monitoring control apparatus to the equipment control server connected via a network to a plurality of central monitoring control apparatuses that collectively monitor and control the state of the equipment When the output prohibition signal for locking the output of the control signal to the central monitoring control device is acquired from the central monitoring control device, it is transmitted to the selected equipment control device, and from the selected equipment control device to the equipment When the lock release signal for unlocking the output of the control signal is acquired from the central monitoring control device that is the transmission source of the output prohibition signal, the equipment When a signal transmission function to be transmitted to the control device and a status signal indicating the state of the facility device control device are received from the facility device control device in response to the output prohibition signal or the lock release signal transmitted by the signal transmission function. The lock state determination function for determining whether or not the output of the control signal from the equipment control device to the equipment is locked based on the state signal, and the output prohibition of the determination result in the lock state determination function A lock state transmission function for transmitting the signal or the lock release signal to the central supervisory control device.

  According to the equipment control device, equipment control server, equipment control method, equipment monitoring control system, and control equipment control program of the present invention, it is possible to simplify malfunctions in the equipment control devices during maintenance inspection of the central monitoring control equipment. Can be prevented by simple operation.

First Embodiment
In the first embodiment of the present invention, when performing maintenance and inspection of a central monitoring control apparatus that manages and manages a plurality of equipment such as power receiving switches installed in a facility, the central monitoring control apparatus is connected to the central monitoring control apparatus. The facility monitoring and control system for setting the remote control device to prevent malfunctions by locking the remote control device for remotely controlling the power receiving switch so that the control signal for controlling the power receiving switch is not accepted. Will be described.

<Configuration of Facility Monitoring and Control System According to First Embodiment>
The configuration of the facility monitoring control system according to the present embodiment will be described with reference to FIG.

  The facility monitoring control system according to the present embodiment is configured by a human interface station (HIS) 1 as a central monitoring control device and a remote control device (RS) 110 as a facility equipment control device connected to the HIS 1. . Although only one remote control device (RS) is shown in FIG. 1, a plurality of remote control devices (RS) are actually connected to the HIS 1.

  When operated by a supervisor, the HIS 1 transmits to the RS 110 a DO prohibition signal for not outputting an opening / closing control signal for the power receiving switch or an opening / closing control signal for controlling the opening / closing of the power receiving switch to be controlled. .

  The HIS 1 determines whether or not the output of the switching control signal to the power receiving switch to be controlled is locked based on information received from the RS 110 described later, and displays the determination result on the built-in display monitor. .

  RS 110 is a device that remotely controls a power receiving switch (not shown) that is equipment installed in the facility, and includes a programmable controller (PLC) 111, a signal input module (DI) 112, a signal It has an output module (DO) 113, a signal output module (DO) 114, a keep relay 115, a lock circuit 116, and a first state input circuit 117.

  When the PLC 111 is connected to the HIS 1 and receives the opening / closing control signal or the DO inhibition signal transmitted from the HIS 1, the PLC 111 receives the opening / closing control signal or the DO inhibition signal and outputs it to the DO 113.

  Further, the PLC 111 transmits a keep relay state signal acquired from a signal input module (DI) 112 described later to the HIS 1.

  The signal input module (DI) 112 inputs a keep relay state signal indicating the ON / OFF state of the power supply of the keep relay 115 from a first state input circuit 117 described later, and outputs the signal to the PLC 111.

  When the signal output module (DO) 113 acquires the opening / closing control signal from the HIS 1 via the PLC 111, the signal output module (DO) 113 outputs the opening / closing control signal to the power receiving switch to be controlled.

  When the signal output module (DO) 114 acquires the DO prohibition signal from the HIS 1 via the PLC 111, the signal output module (DO) 114 outputs a keep relay ON signal for turning on the power of the keep relay 115 to the keep relay 115.

  The keep relay 115 is turned on when the keep relay ON signal is acquired from the DO 114, keeps until a keep relay OFF signal for turning off the power is obtained, and is otherwise turned off.

  The lock circuit 116 includes a DO power source 116A that supplies power to the DO 113, and a b contact 116B that opens to lock the power supply by shutting off the power from the DO power source 116A to the DO 113 when the power of the keep relay 115 is turned on. And have.

  The first state input circuit 117 has a first contact 117A that closes when the power of the keep relay 115 is turned on and inputs a keep relay state signal indicating that the power of the keep relay 115 is turned on to the DI 112.

<Operation of Facility Monitoring and Control System According to First Embodiment>
Next, the operation of the equipment monitoring control system according to the present embodiment will be described.

  First, on the display monitor of the HIS 1 by the operation of the monitor, a power receiving switch that is a facility device to be prevented from malfunctioning due to the HIS 1 power shutoff is selected, and the remote control device that controls the selected power receiving switch On the other hand, a DO prohibition signal for preventing the switching control signal from being output to the power receiving switch is transmitted from the HIS 1.

  Here, it is assumed that the power receiving switch controlled by RS 110 is selected as the power receiving switch to be prevented from malfunctioning.

  The operation of the remote control device to which the DO prohibition signal is transmitted is shown in the flowchart of FIG.

  When the DO prohibition signal is transmitted from the HIS1, it is received by the PLC 111 of the RS 110 (S1), and the received DO prohibition signal is output to the DO 114 (S2).

  When the DO prohibition signal is acquired by the DO 114, a power ON signal by a momentary ON / OFF signal for turning on the power of the keep relay 115 is output to the keep relay 115 (S3).

  When the power ON signal is acquired, the keep relay 115 transitions to the power ON state and keeps it (S4).

  When the keep relay 115 transitions to the power ON state, the b contact 116B of the lock circuit 116 is opened (S5), and the power supplied from the DO power source 116A to the DO 113 is shut off.

  In the DO 113, when the power supplied from the DO power source 116A is cut off, the acceptance of the open / close control signal from the outside and the output to the controlled power receiving switch are locked (S6).

  Further, when the keep relay 115 transits to the power ON state in step S4, the first a contact 117A of the first state input circuit 117 is closed (S7), and the keep relay status signal indicating that the power of the keep relay 115 transits to ON. Is input to the DI 112 (S8).

  When a keep relay state signal indicating that the power of the keep relay 115 has been turned ON is input in DI 112, the keep relay state signal is output from DI 112 to PLC 111.

  When this keep relay state signal is received by the PLC 111, it is transmitted to the HIS 1 (S9).

  In the HIS1, when a keep relay state signal is received from the RS 110, the power of the keep relay 115 is turned on based on the keep relay state signal, so that the output of the open / close control signal to the controlled power receiving switch is DO113. The result of the determination is displayed on the display monitor and is confirmed by the monitor.

  In addition, when the maintenance check of HIS1 is completed and the locked state of DO113 is released, a DO lock release signal for releasing the lock is transmitted from HIS1 to RS110 and processed in RS110 in the same order as the flowchart of FIG. As a result, the power OFF signal is output to the keep relay 115 in step S3, the keep relay 115 transitions to the OFF state, the first contact a 117A is opened, the contact b 116B is closed, and the DO 113 is locked. Then, the fact that the power of the keep relay 115 is OFF is transmitted to the HIS1 and it is determined that the DO113 is unlocked in the HIS1, and the display monitor shows that the lock is released and is confirmed by the monitor. Is done.

  According to the facility monitoring control system of the first embodiment described above, the output of the opening / closing control signal to the power receiving opening / closing to be controlled is controlled by the operation from the HIS1 which is the central supervisory control device, and this control state is HIS1. Therefore, the monitoring staff can control the output of the switching control signal to the power receiving switch to be controlled only by operating the HIS 1 and can also check the control state.

  Therefore, when the HIS 1 is turned off and turned on again during maintenance and inspection of the HIS 1, the output of the opening / closing control signal to the power receiving opening / closing to be controlled is prohibited, so that malfunction in the RS 110 can be reliably prevented.

<< Second Embodiment >>
In the second embodiment of the present invention, a facility monitoring control system in which a plurality of HIS 1 to 3 and RS 110 are connected via a network 100 and a server station (SVS) 10 will be described.

<Configuration of Facility Monitoring and Control System According to Second Embodiment>
The configuration of the facility monitoring control system according to the present embodiment will be described with reference to FIG.

  The equipment monitoring and control system according to this embodiment is connected to human interface stations (HIS) 1 to 3, a server station (SVS) 10 as equipment equipment control server connected to the HIS 1 to 3 via the network 100, and the SVS 10. Remote control device (RS) 110. In FIG. 3, only one server station (SVS) and one remote control device (RS) are shown, but actually, a plurality of these devices may be connected.

  Since the functions of HIS1 to 3 are the same as the functions of HIS1 described in the first embodiment, detailed description thereof is omitted.

  Since the function of the RS 110 is the same as that of the first embodiment except that the communication destination is the SVS 10 instead of the HIS 1, the detailed description is omitted.

  The SVS 10 is connected to the HIS 1 to 3 via the network 100, and when receiving the switching control signal or DO prohibition signal for the power receiving switch from any of the HIS 1 to 3, the SVS 10 determines the target RS and outputs these signals. CPU11 which transmits and memorize | stores transmission history, PLC12 which controls the input / output of the signal to the connected equipment, DI13 which inputs a signal from the connected equipment, and the connected equipment And DO14 for outputting a signal to.

<Operation of Facility Monitoring and Control System According to Second Embodiment>
Next, the operation of the equipment monitoring control system according to the present embodiment will be described.

  First, on the display monitor of the HIS 1 by the operation of the monitor, a power receiving switch that is a facility device to be prevented from malfunctioning due to the HIS 1 power shutoff is selected, and the remote control device that controls the selected power receiving switch A DO prohibition signal is transmitted from the HIS 1 so as not to output a switching control signal to the power receiving switch for the connected SVS 10.

  Here, it is assumed that the power receiving switch controlled by RS 110 is selected as the power receiving switch to be prevented from malfunctioning.

  The operation of the SVS 10 to which the DO prohibition signal is transmitted is shown in the flowchart of FIG.

  The CPU 11 of the SVS 10 monitors whether or not the DO prohibition signal is received (S11). When the DO prohibition signal is received from the HIS 1 (“YES” in S11), the RS to be controlled by the DO prohibition signal is changed. It is specified (S12). Here, RS 110 is specified as the RS to be controlled.

  When the control target RS is identified in the CPU 11, information on the HIS 1 that is the transmission source of the DO prohibition signal and the RS 110 that is the transmission destination are stored (S13), and the received DO prohibition signal is transmitted to the identified RS 110 ( S14).

  Since the processing in RS 110 when the DO prohibition signal is received is the same as steps S1 to S9 in the flowchart of FIG. 2, detailed description thereof is omitted.

  In step S8, when a keep relay state signal indicating that the power of the keep relay 115 is turned on is input to the DI 112 and further output to the PLC 111, the keep relay state signal is transmitted to the CPU 11 of the SVS 10.

  The CPU 11 monitors whether or not a keep relay state signal has been received (S15). If it is determined that the keep relay state signal has been received ("YES" in S15), the CPU 11 keeps the state based on the keep relay state signal. When the power of the relay 115 is ON, it is determined that the output of the switching control signal to the power receiving switch to be controlled is locked, and a lock state signal is generated (S16).

  In addition, since the transmission source of the received keep relay state signal is RS110, the CPU 11 locks the HIS1 that is the transmission source of the DO prohibition signal transmitted to the RS110 based on the information stored in step S13. It is specified as the transmission destination of the status signal (S17).

  When HIS1 is specified as the transmission destination of the lock state signal in CPU 11, the received lock state signal is transmitted to HIS1 (S18).

  In the HIS1, when a lock state signal is received from the CPU 11 of the SVS 10, it is displayed on the display monitor that the DO 113 of the RS 110 is in the lock state, and is confirmed by a monitor.

  Next, when the maintenance check of HIS1 is completed and the locked state of DO113 is released, a DO lock release signal for releasing the lock is transmitted from HIS1 to SVS10.

  The CPU 11 of the SVS 10 monitors whether or not the DO lock release signal has been received (S19). If it is determined that the DO lock release signal has been received ("YES" in S19), the information stored in step S13 is stored. Based on the above, it is determined whether or not the transmission source of the received DO lock release signal is the same as the transmission source when the lock prohibition signal is received in step S11 (S20).

  Here, it is determined that the transmission source of the DO lock release signal and the transmission source of the lock prohibition signal are the same HIS1 (“YES” in S20), and the RS110 that is the transmission destination when the lock prohibition signal is transmitted is received by the RS110. The released DO lock release signal is transmitted, and the lock release processing is executed (S21).

  When the unlocking process is executed, the RS 110 outputs a power OFF signal to the keep relay 115 in the same manner as when the DO unlock signal is received in the first embodiment, and the keep relay transits to the OFF state. The contact 117A is opened and the b contact 116B is closed, the DO 113 is unlocked, and a release state signal indicating that the lock is released is transmitted from the RS 110 to the CPU 11 of the SVS 10, and the DO 113 is unlocked by the CPU 11. It is determined that the lock has been released on the display monitor of the HIS 1 and is confirmed by the monitor.

  When it is determined in step S20 that the transmission source of the DO lock release signal received by the CPU 11 is not HIS1 that is the transmission source when the lock prohibition signal is received in step S11, but HIS2 or HIS3 (S20). "NO") is not monitored until the DO lock is released, and the process returns to step S19 until a DO lock release signal is received.

  According to the facility monitoring control system of the second embodiment described above, the monitoring staff can control the output of the switching control signal to the power receiving switch to be controlled only by operating the HIS. In addition, even when multiple HISs are connected, the HIS that has transmitted the DO prohibition signal is specified and the process is executed, so that a malfunction occurs in the RS due to a signal transmitted from another HIS. This can be prevented.

  In the present embodiment, a case has been described in which the CPU 11 determines whether or not the output of the switching control signal to the power receiving switch to be controlled is locked in the DO 113, but this determination is performed in the HIS 1. You may set as follows.

<< Third Embodiment >>
In the third embodiment of the present invention, a facility monitoring control system that more accurately determines whether or not the DO 113 in the CPU 11 is in a locked state will be described.

<Configuration of facility monitoring control system according to the third embodiment>
The configuration of the facility monitoring control system according to the present embodiment will be described with reference to FIG.

  The facility monitoring control system according to the present embodiment is connected to human interface stations (HIS) 1 to 3 as central monitoring control devices, a server station (SVS) 10 connected to the HISs 1 to 3 via the network 100, and the SVS 10. Remote control device (RS) 110. In FIG. 5, only one server station (SVS) and one remote control device (RS) are shown, but in reality, a plurality of these devices may be connected.

  Since the functions of the HIS 1 to 3 and the SVS 10 are the same as the functions of the respective devices described in the second embodiment, detailed description thereof is omitted.

  The RS 110 includes a programmable controller (PLC) 111, a signal input module (DI) 112, a signal output module (DO) 113, a signal output module (DO) 114, a keep relay 115, and a lock circuit 116. , First state input circuit 117 and second state input circuit 118.

  Among these, except for the lock circuit 116 and the second state input circuit 118, the configuration is the same as the RS 110 of the first embodiment and the second embodiment, and thus detailed description of the same portion is omitted.

  The lock circuit 116 includes a DO power source 116A that supplies power to the DO 113, and a b contact 116B that opens to lock the power supply by shutting off the power from the DO power source 116A to the DO 113 when the power of the keep relay 115 is turned on. And the auxiliary relay 116C that keeps power until the power supply is turned off when the power supply is supplied from the DO power supply 116A and the power supply is turned off when the contact b 116B is opened and the contact b is closed.

  The second state input circuit 118 is closed when the power of the auxiliary relay 116C transitions to the OFF state, and has a second a contact 118A that inputs to the DI 112 an auxiliary relay state signal indicating that the power of the auxiliary relay 116C has transitioned OFF. .

<Operation of Facility Monitoring and Control System According to Third Embodiment>
Next, the operation of the equipment monitoring control system according to the present embodiment will be described.

  First, on the display monitor of the HIS 1 by the operation of the monitor, a power receiving switch that is a facility device to be prevented from malfunctioning due to the HIS 1 power shutoff is selected, and the remote control device that controls the selected power receiving switch A DO prohibition signal is transmitted from the HIS 1 so as not to output a switching control signal to the power receiving switch for the connected SVS 10.

  Here, it is assumed that the power receiving switch controlled by RS 110 is selected as the power receiving switch to be prevented from malfunctioning.

  Since the operation of the SVS 10 when the DO prohibition signal is transmitted is the same as the processing described in steps S11 to S17 in the flowchart of FIG. 4 in the second embodiment, detailed description thereof is omitted.

  The processing of RS 110 when the DO prohibition signal is received in step S14 of FIG. 4 will be described with reference to the flowchart of FIG.

  The processes in steps S31 to S35 in the flowchart of FIG. 6 are the same as the processes in steps S1 to S5 in FIG.

  In step S35, when the b-contact 116B of the lock circuit 116 is opened and the power supplied from the DO power supply 116A to the DO113 is shut off, the auxiliary relay 116C in which the power supply is always in the ON state transitions to the power OFF state (S36). ).

  In the DO 113, when the power supplied from the DO power source 116A is cut off, the acceptance of the open / close control signal from the outside and the output to the controlled power receiving switch are locked (S37).

  Further, when the auxiliary relay 116C transitions to the power OFF state in step S36, the second a contact 118A of the second state input circuit 118 is closed (S38), and an auxiliary relay state signal indicating that the power of the auxiliary relay 116C has transitioned OFF. Is input to the DI 112 (S39).

  In addition, when the keep relay 115 transits to the power ON state in step S34, the 1a contact 117A of the first state input circuit 117 is closed (S40), and the keep relay status signal indicating that the power of the keep relay 115 transits to ON. Is input to the DI 112 (S41).

  When a keep relay state signal indicating that the power of the keep relay 115 is turned ON in DI 112 and an auxiliary relay state signal indicating that the power of the auxiliary relay 116C is turned OFF are input, the keep relay state signal The auxiliary relay status signal is output from the DI 112 to the PLC 111.

  When this keep relay state signal and auxiliary relay state signal are received by the PLC 111, they are transmitted to the CPU 11 of the SVS 10 (S42).

  The CPU 11 determines whether or not the output of the switching control signal to the power receiving switch to be controlled is locked based on the received keep relay state signal and auxiliary relay state signal.

  This determination is made based on the table of FIG.

  Here, it is input in step S39 that the auxiliary relay 116C has transitioned to the power OFF state by the auxiliary relay state signal, and in step S41, it has been input that the keep relay 115 has transitioned to the power ON state. Based on this, it is determined that the DO 113 is locked.

  When the CPU 11 determines that the DO 113 is locked, a lock state signal indicating that the output of the opening / closing control signal to the controlled power receiving switch is locked is transmitted to the HIS 1.

  In the HIS1, when a lock state signal is received from the CPU 11 of the SVS 10, it is displayed on the display monitor that the DO 113 of the RS 110 is in the lock state, and is confirmed by a monitor.

  In addition, in the CPU 11, when the signal that the auxiliary relay 116C remains in the power ON state is input even though the signal that the keep relay 115 is switched to the power ON state is input, it is determined that the lock circuit is abnormal, and the keep relay When a signal indicating that the power is OFF in 115 and a signal indicating that the auxiliary relay 116C is ON is input, it is determined that the DO 113 is unlocked, and the keep relay 115 remains in the power OFF state. Nevertheless, when a signal indicating that the auxiliary relay 116C is turned off is input, it is determined that the DO power supply 116A is abnormal, and these states are transmitted to the HIS 1 and displayed on the display monitor.

  Since the processing in the SVS 10 when the maintenance inspection of the HIS 1 is completed and the locked state of the DO 113 is released is the same as the processing described in steps S18 to S21 in the flowchart of FIG. 4 in the second embodiment, a detailed description will be given. Omitted.

  The processing in the SVS 10 and the RS 110 when the DO lock release is executed is performed by referring to the table in FIG. 7 based on the signal input from the keep relay 115 and the signal input from the auxiliary relay 116C in the CPU 11. Except for determining whether or not the DO 113 is unlocked, it is the same as that of the second embodiment, and a detailed description thereof will be omitted.

  According to the equipment monitoring control system of the third embodiment described above, the CPU 11 is in a state where the DO 113 is locked with reference to not only the signal input from the keep relay 115 but also the signal input from the auxiliary relay 116C. Therefore, it is possible to detect the abnormality of the lock circuit and the abnormality of the DO power source, and the state of the DO 113 can be grasped more accurately by the HIS.

  In the present embodiment, a case has been described in which the CPU 11 determines whether or not the output of the switching control signal to the power receiving switch to be controlled is locked in the DO 113, but this determination is performed in the HIS 1. You may set as follows.

<< 4th Embodiment >>
In the fourth embodiment of the present invention, a facility monitoring control system that executes the determination as to whether or not the DO 113 is locked in the CPU 11 more accurately than in the third embodiment will be described.

<Configuration of Facility Monitoring and Control System According to Fourth Embodiment>
The configuration of the facility monitoring control system according to the present embodiment will be described with reference to FIG.

  The facility monitoring control system according to the present embodiment includes human interface stations (HIS) 1 to 3 as central monitoring control devices, server stations (SVS) 10 and 20 connected to the HIS 1 to 3 via a network 100, and an SVS 10 The remote control device (RS) 110 connected to the SVS 20 and the remote control device (RS) 210 connected to the SVS 20. FIG. 7 shows a state where only one remote control device (RS) is connected to each server station (SVS), but in reality, a plurality of remote control devices (RS) are connected. It may be.

  The functions of the HIS1 to 3, the SVS10, and the RS110 are the same as the functions of the devices described in the third embodiment, and thus detailed description thereof is omitted.

  Further, the function of the SVS 20 is the same as the function of the SVS 10, and thus detailed description thereof is omitted.

  The RS 210 includes a programmable controller (PLC) 211, a signal input module (DI) 212, a signal output module (DO) 213, and a third state input circuit 214.

  When the PLC 211 is connected to the HIS 2 and receives an opening / closing control signal transmitted from the HIS 2, the PLC 211 receives the opening / closing control signal and outputs it to the DO 213.

  In addition, the PLC 211 transmits a third keep relay state signal acquired from a signal input module (DI) 212 described later to the HIS 2.

  The signal input module (DI) 212 inputs a third keep relay state signal indicating the ON / OFF state of the power supply of the auxiliary relay 116C from a third state input circuit 214 described later, and outputs the signal to the PLC 211.

  When the signal output module (DO) 213 acquires an open / close control signal from the HIS 2 via the PLC 211, the signal output module (DO) 213 outputs the open / close control signal to the power receiving switch to be controlled.

  The third state input circuit 214 is closed when the power of the auxiliary relay 116C transitions to the OFF state, and a third a contact 214A that inputs a third keep relay state signal indicating that the power of the auxiliary relay 116C has transitioned OFF to the DI 212. Have

<Operation of Facility Monitoring and Control System According to Fourth Embodiment>
Next, the operation of the equipment monitoring control system according to the present embodiment will be described.

  First, on the display monitor of the HIS 1 by the operation of the monitor, a power receiving switch that is a facility device to be prevented from malfunctioning due to the HIS 1 power shutoff is selected, and the remote control device that controls the selected power receiving switch A DO prohibition signal is transmitted from the HIS 1 so as not to output a switching control signal to the power receiving switch for the connected SVS 10.

  Here, it is assumed that the power receiving switch controlled by RS 110 is selected as the power receiving switch to be prevented from malfunctioning.

  The operation of the SVS 10 when the DO prohibition signal is transmitted is the same as that in the second embodiment for the processing described in steps S11 to S15 in the flowchart of FIG. When the keep relay state signal is received by the CPU 11 in step S15, it is transmitted to the HIS1, and whether or not the output of the open / close control signal of the DO 113 is locked is determined by the HIS1.

  Further, since the operation of the RS 110 is the same as the processing described in steps S31 to S42 in the flowchart of FIG. 6 in the third embodiment, detailed description thereof is omitted.

  In this embodiment, when the auxiliary relay 116C transitions to the power OFF state in step S36 of FIG. 6, in addition to the second a contact 118A of the second state input circuit 118, it is connected to the SVS 20 that is a server station different from the RS 110. The third a contact 214A of the third state input circuit 214 of the RS 210 thus closed is also closed, and a third keep relay state signal indicating that the power of the auxiliary relay 116C has transitioned to OFF is input to the DI 212.

  When the third keep relay state signal indicating that the power of the auxiliary relay 116 </ b> C has been turned OFF is input in DI 212, the third keep relay state signal is output from DI 212 to PLC 211.

  When this third keep relay state signal is received by the PLC 211, it is transmitted to the CPU 21 of the SVS 20.

  The third keep relay state signal received by the CPU 21 is transmitted to the HIS 1, and for receiving power to be controlled by the keep relay state signal and the auxiliary relay state signal received from the CPU 11 in the HIS 1 and the third keep relay state signal received from the CPU 21. It is determined whether or not the output of the switching control signal to the switch is locked.

  This determination is made based on the table of FIG. 9 stored in advance in the HIS 1.

  Here, it is input that the auxiliary relay 116C has transitioned to the power OFF state by the auxiliary relay state signal, that the keep relay 115 has transitioned to the power ON state is input, and further, the auxiliary relay 116C has been input by the third keep relay state signal. Since it is input that the power has been changed to the power OFF state, it is determined that the DO 113 is locked based on the table of FIG.

  When it is determined in the HIS 1 that the DO 113 is locked, the determination result is displayed on the display monitor and is confirmed by the monitor.

  Further, in HIS1, when the auxiliary relay state signal or the third keep relay state signal is input while the auxiliary relay 116C remains in the power ON state even though the signal indicating that the keep relay 115 is switched to the ON state is input, The auxiliary relay 116C is turned off in the third keep relay state signal even though the signal that the relay 115 is turned off is inputted and the auxiliary relay state signal is inputted that the auxiliary relay 116C is turned on. When a signal that remains unchanged is input, it is determined that there is an abnormality in the lock circuit or any of the state input circuits, a signal indicating that the keep relay 115 is in the power OFF state is input, and a signal indicating that the auxiliary relay 116C is ON Entered by auxiliary relay status signal and third keep relay status signal When this is done, it is determined that the DO 113 is unlocked, and a signal indicating that the auxiliary relay 116C has transitioned to the power OFF state while the keep relay 115 remains in the power OFF state is input by the auxiliary relay state signal. When it is detected that the DO power supply 116A is abnormal, these states are transmitted to the HIS 1 and displayed on the display monitor.

  Further, the processes in HIS1, SVS10, and RS110 when the DO lock release is executed are the keep relay status signal input from keep relay 115, the auxiliary relay status signal input from auxiliary relay 116C, and the Except for determining whether or not the DO 113 is unlocked with reference to the table of FIG. 9 from the 3 keep relay state signal, the same as in the second and third embodiments. Therefore, detailed description is omitted.

  According to the equipment monitoring control system of the fourth embodiment described above, the HIS 1 is input not only to the status signal input to the RS 110 but also to the RS 210 connected to the SVS 20 different from the SVS 10 to which the RS 110 is connected. In order to determine whether or not the DO 113 is locked with reference to the status signal thus generated, it is possible to detect an abnormality of the lock circuit or the state input circuit and an abnormality of the DO power source, and more accurately the state of the DO 113. Can be grasped by HIS.

  Moreover, it is also possible to construct the equipment control program which makes the said computer function as RS by programming the functional structure of RS of the said 1st Embodiment-4th Embodiment into a computer, and incorporating it in a computer.

  Moreover, it is also possible to construct an equipment control program for causing the computer to function as the SVS by programming the functional configuration of the SVS of the second to fourth embodiments and incorporating it into the computer.

It is a block diagram which shows the structure of the equipment monitoring control system by 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the remote control apparatus of the equipment monitoring control system by 1st Embodiment of this invention. It is a block diagram which shows the structure of the equipment monitoring control system by 2nd Embodiment of this invention. It is a flowchart which shows operation | movement of the server station of the equipment monitoring control system by 2nd Embodiment of this invention. It is a block diagram which shows the structure of the equipment monitoring control system by 3rd Embodiment of this invention. It is a flowchart which shows operation | movement of the remote control apparatus of the equipment monitoring control system by 3rd Embodiment of this invention. It is a table | surface which shows the table memorize | stored in the server station of the equipment monitoring control system by 3rd Embodiment of this invention. It is a block diagram which shows the structure of the equipment monitoring control system by 4th Embodiment of this invention. It is a table | surface which shows the table memorize | stored in the human interface station of the equipment monitoring control system by 4th Embodiment of this invention.

Explanation of symbols

1-3 ... HIS
10 ... SVS
11 ... CPU
12 ... PLC
13 ... DI
14 ... DO
20 ... SVS
21 ... CPU
100 ... Network 110 ... RS
111 ... PLC
112 ... DI
113 ... DO
114 ... DO
115 ... keep relay 116 ... lock circuit 116A ... DO power supply 116B ... b contact 116C ... auxiliary relay 117 ... first state input circuit 117A ... first a contact 118 ... second state input circuit 118A ... second a contact 210 ... RS
211 ... PLC
212 ... DI
213 ... DO
214 ... Third state input circuit 214A ... 3a contact

Claims (12)

In the equipment control device connected to the equipment installed in the facility, and connected to a central monitoring control device that supervises and controls the state of a plurality of the equipment,
When a control signal for controlling the equipment is acquired from the central monitoring control device, a control signal output module that outputs the control signal to the equipment,
When an output prohibition signal for locking the output of the control signal from the control signal output module to the equipment is acquired from the central monitoring control device, a keep relay that transitions to a power-on state,
When the keep relay transitions to a power-on state, a lock circuit that cuts off the power supplied to the control signal output module and locks the output of the control signal to the equipment,
A first state input circuit that closes when power is applied to the keep relay;
When the first state input circuit is closed, a first state signal indicating that the power is supplied to the keep relay is generated, and when the power is supplied to the keep relay, the equipment is connected to the equipment. A status signal input module for transmitting the first status signal to the central supervisory control device to determine that the output of the control signal is locked;
An equipment control device comprising: The lock circuit has an auxiliary relay that transitions to a power-off state when the power supplied to the control signal output module is cut off;
A second state input circuit that closes when the auxiliary relay is powered off;
The state signal input module generates the first state signal indicating that the power is supplied to the keep relay when the first state input circuit is closed, and the second state input circuit When the circuit is closed, a second state signal indicating that the power supply of the auxiliary relay is cut off is generated, the power is turned on to the keep relay, and the power supply of the auxiliary relay is turned off. The first status signal and the second status signal are transmitted to the central supervisory control device in order to determine that the output of the control signal to the device is locked. Equipment control device. A plurality of central monitoring controls that are connected to the equipment control device corresponding to each equipment that controls a plurality of equipment installed in the facility, and that supervises and controls the state of the equipment In the equipment control server connected to the device via the network,
When the output prohibition signal for locking the output of the control signal from the equipment control device selected in the central monitoring control device to the equipment is acquired from the central monitoring control device, the selected equipment The central supervisory control device, which is a transmission source of the output prohibition signal, transmits a lock release signal for releasing the lock of the output of the control signal from the selected equipment control device to the equipment, which is transmitted to the control device A signal transmission unit that transmits to the equipment control device when acquired from,
Based on whether a state signal indicating the state of the equipment control device is received from the equipment control device in response to the output prohibition signal or the lock release signal transmitted from the signal transmission unit, the equipment A lock state determination unit that determines whether or not the output of the control signal from the control device to the equipment is locked;
A lock state transmission unit that transmits a determination result in the lock state determination unit to the central supervisory control device that is a transmission source of the output prohibition signal or the lock release signal;
A facility equipment control server comprising: An equipment control device connected to a central monitoring control device that is connected to equipment installed in the facility and supervises and controls the state of a plurality of the equipment,
When a control signal for controlling the equipment is acquired from the central monitoring control device, a control signal output step for outputting the control signal to the equipment,
When the output prohibition signal for locking the output of the control signal to the equipment in the control signal output step is acquired from the central monitoring control device, the keep relay in the device is switched to the power-on state. A first transition step;
When the power of the keep relay is switched on in the first transition step, the power supplied to the control signal output module for executing the control signal output step is cut off, and the control signal to the equipment is A lock processing step to lock the output;
A first circuit control step for closing a first state input circuit in the device when power is supplied to the keep relay;
When the first state input circuit is closed by the first circuit control step, a first state signal indicating that the power is supplied to the keep relay is generated, and the power is supplied to the keep relay. A state signal input step of transmitting the first state signal to the central supervisory control device in order to determine that the output of the control signal to the equipment is locked due to being
The equipment control method characterized by comprising. In the lock processing step, when the power supplied to the control signal output module is cut off, the auxiliary relay in the device is turned off,
A second circuit control step of closing the second state input circuit in the device when the auxiliary relay is powered off;
The state signal input step generates the keep relay state signal indicating that the power is supplied to the keep relay when the first state input circuit is closed, and the second state input circuit A second state signal is generated to indicate that the power supply of the auxiliary relay is cut off when the circuit is closed, and the keep relay is turned on and the auxiliary relay is turned off. The first status signal and the second status signal are transmitted to the central supervisory control device in order to determine that the output of the control signal to the equipment is locked. Equipment control method. A plurality of central monitoring controls that are connected to the equipment control device corresponding to each equipment that controls a plurality of equipment installed in the facility, and that supervises and controls the state of the equipment The equipment control server connected to the device via the network
When the output prohibition signal for locking the output of the control signal from the equipment control device selected in the central monitoring control device to the equipment is acquired from the central monitoring control device, the selected equipment The central supervisory control device, which is a transmission source of the output prohibition signal, transmits a lock release signal for releasing the lock of the output of the control signal from the selected equipment control device to the equipment, which is transmitted to the control device A signal transmission step to transmit to the equipment control device when acquired from,
When a status signal indicating the status of the equipment control device is received from the equipment control device in response to the output prohibition signal or the lock release signal transmitted in the signal transmission step, the equipment is based on the status signal. A lock state determination step for determining whether or not the output of the control signal from the control device to the equipment is locked;
A lock state transmission step of transmitting a determination result in the lock state determination step to the central supervisory control device that is a transmission source of the output prohibition signal or the lock release signal;
The equipment control method characterized by comprising. Equipment control device for controlling equipment installed in the facility, equipment control server connected to the equipment control device, and a plurality of the equipment connected to the equipment control server via a network In a facility monitoring and control system comprising a plurality of central monitoring and control devices that collectively monitor and control the state of
The equipment control server is
When a control signal for the equipment is acquired from any of the central monitoring and control devices, it is transmitted to the equipment control device connected to the equipment, and an output prohibition signal for locking the output of the control signal for the equipment is provided. , When obtained from any of the central monitoring and control devices, transmit to the equipment control device connected to the equipment, and release the lock release signal for unlocking the output of the control signal to the equipment A signal transmission unit that transmits to the facility equipment control device connected to the equipment when acquiring from the central monitoring control device that is a signal transmission source,
Based on whether a state signal indicating the state of the equipment control device is received from the equipment control device in response to the output prohibition signal or the lock release signal transmitted from the signal transmission unit, the equipment A lock state server determination unit that determines whether or not the output of the control signal from the control device to the facility device is locked;
A lock state transmission unit that transmits a determination result in the lock state server determination unit to the central monitoring control device that is a transmission source of the output prohibition signal or the lock release signal;
Have
The equipment control device is
When a control signal for controlling the equipment is acquired from the signal transmission unit of the equipment control server, a control signal output module that outputs the control signal to the equipment,
When the output prohibition signal is acquired from the facility equipment control server, the state transitions to a power-on state, and when the lock release signal is acquired from the facility equipment control server, the keep relay transitions to a state where the power source is disconnected,
When the state of the keep relay is turned on, the power supplied to the control signal output module is turned off to lock the output of the control signal to the equipment, and the power of the keep relay is turned off. A lock circuit that enables the output of the control signal to the equipment by turning on the power to the control signal output module when transitioning to a state;
A first state input circuit that closes when power is applied to the keep relay;
When the first state input circuit is closed, a first state signal indicating that the power is supplied to the keep relay is generated and the power is supplied to the keep relay. A status signal input module that transmits to the equipment control server to determine that the output of the control signal is locked,
A facility monitoring and control system comprising: The lock circuit has an auxiliary relay that transitions to a power-off state when the power supplied to the control signal output module is cut off;
The facility equipment control device further includes a second state input circuit that closes when the power of the auxiliary relay is cut off,
When the first state input circuit is closed, the state signal input module generates the keep relay state signal indicating that the power is supplied to the keep relay, and the second state input circuit is closed. Then, an auxiliary relay state signal is generated to indicate that the power supply of the auxiliary relay is turned off, and the power is supplied to the keep relay and the power supply of the auxiliary relay is turned off to the equipment. The equipment monitoring control system according to claim 7, wherein the keep relay status signal and the auxiliary relay status signal are transmitted to the equipment control server to determine that the output of the control signal is locked. . A plurality of equipment control devices that control equipment installed in the facility, a plurality of equipment control servers connected to any of these equipment control devices, and a network connected to these equipment control servers via a network In a facility monitoring control system comprising a plurality of central monitoring and control devices that collectively monitor and control the state of a plurality of the connected equipment devices,
The first equipment control server among the plurality of equipment control servers is
When a control signal for the connected equipment is acquired from any of the central monitoring control devices, an output for transmitting to the equipment control device connected to the equipment and locking the output of the control signal for the equipment When the prohibition signal is acquired from any of the central monitoring and control devices, it is transmitted to the facility device control device connected to the facility device, and a lock release signal for unlocking the output of the control signal to the facility device, A first control signal transmission unit that transmits to the facility equipment control device connected to the equipment device when acquired from the central monitoring control device that is the transmission source of the output prohibition signal;
When the status signal indicating the status of the equipment control device is received from the equipment control device in response to the output prohibition signal or the lock release signal transmitted from the signal transmission unit, the output prohibition signal or the lock release signal A first status signal transmitter for transmitting this status signal to the central supervisory control device that is the transmission source of
Have
The first equipment device control device connected to the first equipment device control server,
When a control signal for controlling the equipment is acquired from the signal transmission unit of the equipment control server, a first control signal output module that outputs the control signal to the equipment,
When the output prohibition signal is acquired from the facility equipment control server, the state transitions to a power-on state, and when the lock release signal is acquired from the facility equipment control server, the keep relay transitions to a state where the power source is disconnected,
When the power of the keep relay is switched on, the power supplied to the control signal output module is cut off to lock the output of the control signal to the equipment and the power of the auxiliary relay in the device is turned on. When the power of the keep relay is turned off, the power to the control signal output module is turned on to enable the output of the control signal to the equipment and the auxiliary relay is turned on. A first lock circuit;
A first state input circuit that closes when power is applied to the keep relay;
A second state input circuit that closes when the auxiliary relay is powered off;
A third state input circuit that closes when the auxiliary relay is powered off;
When the first state input circuit is closed, the auxiliary relay generates the first state signal indicating that power is supplied to the keep relay, and when the second state input circuit is closed. A first state signal input module that generates a second state signal indicating that the power source of the power source is disconnected and transmits the second state signal to the first equipment control server;
Have
Unlike the first equipment control server, the second equipment control server connected to the second equipment control device among the plurality of equipment control devices is
When the status signal indicating the status of the first equipment device control device is received from the connected second equipment device control device, this state is sent to the central monitoring control device which is the transmission source of the output prohibition signal or the lock release signal. A second state signal transmitter for transmitting signals,
The second equipment device control device includes:
When the third state input circuit is closed, a second state signal input for generating a third state signal indicating that the power supply of the auxiliary relay is cut off and transmitting it to the second equipment control server Have modules,
The central supervisory control device
The first status signal and the second status signal acquired from the first status signal transmitter of the first equipment device control server, and the second status signal acquired from the second status signal transmitter of the second equipment device control server. When the status signal of 3 is received, the power of the keep relay is turned on and the power of the auxiliary relay is turned off based on these status signals, so that the output of the control signal to the equipment is locked. A facility monitoring and control system comprising a lock state central determination unit for determining that there is a failure. Connected to the equipment installed in the facility, and connected to a central monitoring control device that monitors and controls the state of the plurality of equipment,
When a control signal for controlling the equipment is acquired from the central monitoring control device, a control signal output function for outputting the control signal to the equipment,
When an output prohibition signal for locking the output of the control signal to the equipment in the control signal output function is acquired from the central monitoring control device, the keep relay in the own device is turned on. A first transition function;
When the first relay function transits to the state where the power of the keep relay is turned on, the power supplied to the control signal output module for executing the control signal output function is cut off, and the control signal to the equipment is Lock processing function to lock the output,
A first circuit control function for closing a first state input circuit in the device when power is supplied to the keep relay;
When the first state input circuit is closed by the first circuit control function, a first state signal indicating that the power is supplied to the keep relay is generated, and the power is supplied to the keep relay. A status signal input function for transmitting the first status signal to the central supervisory control device in order to determine that the output of the control signal to the equipment is locked due to being
Equipment control program for running In the lock processing function, when the power supplied to the control signal output module is cut off, the auxiliary relay in the own device is turned off,
A second circuit control function for closing the second state input circuit in the device when the auxiliary relay is powered off;
The state signal input function generates the keep relay state signal indicating that the power is supplied to the keep relay when the first state input circuit is closed, and the second state input circuit A second state signal is generated to indicate that the power supply of the auxiliary relay is cut off when the circuit is closed, and the keep relay is turned on and the auxiliary relay is turned off. 11. The first status signal and the second status signal are transmitted to the central supervisory control device in order to determine that the output of the control signal to the equipment is locked. Equipment control program. A plurality of central monitoring controls that are connected to the equipment control device corresponding to each equipment that controls a plurality of equipment installed in the facility, and that supervises and controls the state of the equipment To the equipment control server connected to the device via the network,
When the output prohibition signal for locking the output of the control signal from the equipment control device selected in the central monitoring control device to the equipment is acquired from the central monitoring control device, the selected equipment The central supervisory control device, which is a transmission source of the output prohibition signal, transmits a lock release signal for releasing the lock of the output of the control signal from the selected equipment control device to the equipment, which is transmitted to the control device A signal transmission function to transmit to the equipment control device when acquired from,
When a status signal indicating the status of the equipment control device is received from the equipment control device in response to the output prohibition signal or the lock release signal transmitted by the signal transmission function, the equipment is based on the status signal. A lock state determination function for determining whether or not the output of the control signal from the control device to the equipment is locked;
A lock state transmission function for transmitting a determination result in the lock state determination function to the central supervisory control device that is a transmission source of the output inhibition signal or the unlock signal;
Equipment control program for running

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