JP2011120074A - Plant supervisory control system, and remote supervisory control apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant supervisory control system and remote supervisory control apparatus in which, even if any failure occurs in the remote supervisory and control apparatus, easy replacement with substitutive one is allowed and reliability is maintained. <P>SOLUTION: When an operating key K is mounted in a lock 22K, the operating key K designating identification information for a remote supervisory control apparatus 2 and the type and sequence of supervisory and control in a specific physical form, the remote supervisory control apparatus 2 switches a connection destination of a switch 222 from a COM I/F 21 to a program selector 221 of the lock 22K, the lock 22K outputs from the program selector 221 to a PLC 24 selection information of a program for implementing the sequence designated from the form of the operating key K, and the PLC 24 implements supervisory and control of the designated type and sequence. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a plant monitoring control system used in a plant and a remote monitoring control device that monitors and controls a load device by communicating with a center device via a network.

  In a plant system where controlled devices such as water and sewage monitoring systems are installed in a wide area, the control operation is installed at the central device in the center and on-site, and communicates with the central device via the network to load devices In many cases, remote monitoring and control devices that monitor and control the system can be used from two locations.

  In such a system, monitoring from the center monitors all information in the plant by inputting the status signal of the controlled device of the plant to a PLC (Programmable Logic Controller) installed at several locations in the plant, And display on a personal computer, which is a central monitoring display device, via a network.

  Since the site only monitors limited machines (controlled devices), the control means is configured with a relay circuit, and currently the main control is from the center due to the wide monitoring range. Often used as backup control information input means due to hardware reliability.

  Recently, there is also a method in which a plurality of remote monitoring and control devices share a memory as a method for reducing wiring and cost in a field (for example, Patent Document 1).

FIG. 7 is a system diagram illustrating a configuration of a plant monitoring control system including a remote monitoring control device using a conventional relay circuit.
In FIG. 7, the conventional plant monitoring control system includes a main monitoring control device 10 for a center, remote monitoring control devices 20a to 20n (a ˜n is a natural number.), And includes a network 30 that connects the central monitoring control device 10 and the remote monitoring control devices 20a to 20n to transmit information.

  The remote monitoring and control device 20 may be provided for each device 50, or a plurality of devices may be installed in one device, but the relationship between the device 50 and the remote monitoring and control device 20 is associated in advance, The monitoring control device 20e communicates with the central monitoring control device 10 to perform a monitoring control operation on the device 50.

  In the remote monitoring and control apparatus 20, the relay circuit 24a operates between a facility and equipment according to a predetermined sequence. Instead of the relay circuit, a PLC in which the CPU 24a, the memory 24b, and the driver circuit 24c performing the same operation as the relay circuit may be used. Normally, monitoring / control signals are input / output from / to the central control apparatus 10 via the network 30 and the communication interface (COMI / F) 210.

  On the other hand, when trouble occurs, the switch 230 is operated to switch the connection destination of the relay circuit 24 from the COMI / F 210 to a lever, dial, etc. (not shown) of the input / output means (I / O) 220 attached to the remote monitoring control device 20. Switch to a maintenance terminal carried by the operator to perform monitoring control.

  At the time of this switching, the operation procedure of the I / O 220 of each of the remote monitoring control devices 20a to 20n and the relay circuit (or PLC) 24a must have their own settings (design specifications) for performing different sequence control. First, there is a problem that the remote monitoring control devices 20a to 20n must be replaced with relay circuits 24 having predetermined specifications when a trouble occurs.

  Even when a PLC is used, since each PLC must follow a program in which a control sequence is set in advance, individual specifications must be set in both the relay circuit and the PLC.

JP 2006-74724 A

  Conventionally, even if a PLC is used to save the relay circuit configuration and wiring, if a trouble such as a failure occurs in the remote monitoring control device 20, the PLC software circuit configuration also needs to be reinstalled. There was a problem that the replacement could not be easily performed. When relay hardware circuit configurations are mixed, trouble handling is further disrupted.

  The present invention has been made to solve the above-described problems. A plant monitoring control system and a remote monitoring control apparatus that can be easily replaced with a replacement even if a failure occurs in the remote monitoring control apparatus and can maintain reliability. The purpose is to provide.

  In order to achieve the above object, the plant supervisory control system according to the present invention is configured such that a central supervisory control device transmits and receives supervisory control information to / from at least one remote supervisory control device via a network. In a plant monitoring and control system for monitoring and controlling equipment and equipment installed in a plant to which the device is connected, an operation key for designating identification information for the remote monitoring and control device in a unique physical shape, A PLC (Programmable Logic Controller) that executes a program and a type of monitoring control for a device stored in advance, a communication unit that performs the transmission and reception between the central monitoring control device, and the specific shape that is specified Locking means to which an operation key can be attached, and when the operation key is attached, the PLC inputs and outputs A remote switch comprising: a switching unit that switches the input / output destination of the monitoring control information from the communication unit to the remote monitoring control device; and an input / output unit that outputs monitoring control information for causing the PLC to execute the monitoring control sequence. And a monitoring control device.

  In the remote monitoring control device of the plant monitoring control system of the present invention, the central monitoring control device transmits / receives the monitoring control information to / from at least one remote monitoring control device via the network. In a remote monitoring control device of a plant monitoring control system that monitors and controls equipment and devices installed in a connected plant, the remote monitoring control device performs the monitoring control performed on the connection destination device and the connection destination device. Type and sequence are specified in advance, an operation key for designating identification information for the remote monitoring and control device and the type and sequence of the monitoring control in a unique physical shape, and monitoring control for the connected facility / equipment A PLC that executes a program stored in advance with the type and sequence of When the operation key is attached to the communication means for performing transmission / reception with the central monitoring control device, the specified identification information is extracted from the shape of the attached operation key and output as program selection information A lock means, a switch means for switching the input / output destination of the monitoring control information input / output by the PLC from the communication means to the remote monitoring control device side when the PLC is mounted, Input / output means for outputting monitoring control information for causing the PLC to execute the specified type and sequence of the monitoring control.

  According to the present invention, it is possible to provide a plant monitoring control system and a remote monitoring control apparatus that can be easily replaced with an alternative product even when a failure occurs in the monitoring control system and can maintain reliability.

The system diagram explaining operation | movement of the plant monitoring control system and remote monitoring control apparatus in Example 1 of this invention. The figure which shows the example of the shape of an operation key and a lock, and those combination. The functional system diagram of the lock | rock which operate | moves in cooperation with the subshape in Example 1. FIG. The operation key which operate | moves in cooperation with the subshape in Example 2, and the functional system diagram of a lock. FIG. 6 is a connection diagram between a maintenance terminal and a remote monitoring control device according to a third embodiment. The figure which shows another example of the shape of an operation key and a lock. The system diagram explaining the structure of the conventional plant monitoring control system.

  Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a system diagram for explaining the operations of the plant monitoring control system and the remote monitoring control apparatus according to the first embodiment of the plant monitoring control system of the present invention.
In FIG. 1, the plant monitoring control system of the present embodiment includes a main monitoring control device 1 of a center, equipment installed in each area in the office, and devices 5a to 5m (for example, each of sluice # 1... Remote monitoring and control devices 2a to 2n (a to n are natural numbers; hereinafter, a to n are necessary to explain matters common to each remote monitoring and control device). The description will be omitted unless there is any other).), A network 3 for transmitting information by connecting the central monitoring control device 1 and the remote monitoring control devices 2a to 2n, and a maintenance terminal used by connecting to the remote monitoring control device 2 T.

  The network 3 is selected from any of the networks, a wide area network such as the intranet, a dedicated line, a public line (dial-up network), or the like that matches the plant configuration and the purpose of monitoring control.

  The remote monitoring and control device 2 is provided for each device 5 as in the conventional plant monitoring and control system, or there are various combinations such as a case where a plurality of devices are installed in one facility or device. The correspondence relationship with the remote monitoring control device 2 for each table is specified.

  Each of the remote monitoring control devices 2a to 2n includes a communication interface (COMI / F) 21 that transmits and receives data to and from the central monitoring control device 1 via the network 3, and a human interface that changes from the monitoring control work to the operator. In place of the I / O 22 and relay circuit that perform the control, a PLC 24 that operates according to a predetermined program for monitoring and controlling the device 5 and operation keys Ka to Kn unique to each of the remote monitoring control devices 2a to 2n are provided.

  The operation key K may be carried by an operator, but is prepared near the console of each remote monitoring and control device 2, and the operator attaches the operation key K to a lock 22K described later as necessary.

  The remote monitoring control device 2 of the embodiment communicates with the central monitoring control device 1 via the network 3 and the communication interface (COMI / F) 21 with the central monitoring control device 1 during normal operation. Then, monitoring control is performed to transmit / receive information related to the monitoring control of the equipment and the device 5 to which the terminal is connected, for example, a sluice gate opening / closing command and sluice gate status monitor data.

  In the embodiment, a program for executing a predetermined sequence is executed according to a command received by the PLC 24 including the CPU 24a, the memory 24b, and the driver circuit 24c instead of the conventional relay circuit, and the monitoring control operation of the corresponding device 5 is performed.

  The I / O 22 of each of the remote monitoring control devices 2a to 2n of the present embodiment includes locks 22Ka to 22Kn (hereinafter, items common to each of the remote monitoring control devices 2a to 2n) that are respectively engaged with unique operation keys Ka to Kn. , And a selection unit switch 222 that operates in conjunction with the lock 22K, a program selection unit 221, and a key button, a lamp, a display, etc. (not shown). Input / output means.

  In the embodiment of the present invention, the shape of the operation key K itself has a one-to-one correspondence with the program for controlling the sequence executed by the remote monitoring control device 2, that is, the shape of the remote monitoring control device 2 The identification information is specified.

  That is, the lock 22K combined with the operation key K reads the shape of the attached operation key K and identifies the program designated by the operation key K.

  That is, when a trouble occurs or when an operator directly operates the remote monitoring and control device 2 at the site for periodic inspections, the operation key K is engaged with the lock 22K. The remote monitoring control device 2 executes a predetermined sequence by a program designated by the operation key K instead of the control from the central control device 1 at the center.

  For example, it is possible to determine that the operation key Ke and the lock 22Ke have the same appearance shape different from the combination of the lock 22K of the other remote monitoring and control device 2, and physically other remote monitoring and control devices. Misuse can be prevented by making the combination with 2 impossible.

  In FIG. 1, for example, the operation key Ka of the remote monitoring control device 2a installed in the device 5a of the sluice # 1 has a pentagonal shape, and the operation key Ke of the remote monitoring control device 2e is V-shaped in the center. It is a rectangle with a similar notch. When the operation key Ke is attached to the lock 22Ke, for example, the convex portion of the operation key Ke operates the contact 222 of the micro switch (not shown) attached to the lock 22Ke, and the input / output destination of the control monitoring signal Is switched from the network 3 to the program selection unit 221 of the I / O 22 so that the remote monitoring control device 2 can be operated directly from the site.

  The program selection unit 221 is a function (means) for selecting a unique operation sequence (relay circuit operation) of the PLC 24 incorporated in each remote monitoring and control device 2, and a predetermined relay circuit program stored in the memory 24b in advance. Select and start. Further, the program selection unit 221 may store and save the emergency processing procedure of the remote monitoring control device 2e in advance and perform the relay circuit operation of the PLC 24 when the operation key Ke is attached. .

  Further, by combining the shape of the operation key K with the main shape and the sub shape, it is possible to correspond to a plurality of sequences corresponding to a plurality of types of relay circuits.

FIG. 2 is a diagram for explaining an example of the combination of the shape of the operation key K and the lock 22K.
In FIG. 2, the operation key Ke is a rectangle with a V-shaped notch in the main shape, and a protrusion is provided at the center “A” portion of the surface to be attached to the lock 22 Ke. In the lock 22Ke, a depression “A” is formed in a portion where the “A” protrusion hits, and a switch 222 such as a micro switch (not shown) is attached to the bottom thereof. When the operation key Ke is attached, the monitoring control signal input / output to / from the CPU 24a is switched from the signal sent via the network 3 to the remote monitoring control device 2 side.

  The connection destination of the switch 222 on the remote monitoring control device 2 side includes a switch for selecting a program to be described later, a button switch (not shown), and a maintenance terminal T. In other words, the monitoring control operation immediately shifts from the center side to the remote side (remote priority switching) when the operation key K is attached to the remote monitoring control device 2.

  When a predetermined operation command is input from the I / O 22 button, switch, or maintenance terminal T, a required monitoring control operation can be executed from the site. In other words, the main shape of the operation key K is a structure that performs the function of switching the operation authority of the device from the center side to the remote monitoring control device 2 when it is attached. It is an example.

  In the present embodiment, a program for executing a monitoring control sequence executed by the remote monitoring control device 2e without using a button switch or the maintenance terminal T by providing a sub-shape in the shape of the operation key Ke of the remote monitoring control device 2e. It is also possible to prevent erroneous operations by further specifying.

  That is, the operation key Ke has a sub-shape corresponding to one of the on-site operation types (sequence, mode), for example, “I” corresponding to “reset” for executing the initial setting of the remote monitoring control unit 2. Protrusions are provided. In another case, instead of “I”, a convex portion “U” corresponding to “gate closing mode” in which the sluice is closed urgently is provided at another position. In order to know the type of the operation sequence, the operation key K is displayed with “reset” and “closed mode” with characters, colors, and the like. In principle, a plurality of sub-shapes are not provided on the operation key K so as not to simultaneously perform conflicting operations.

  The lock 22K to which the operation key is attached is provided with a recess “I” at a position corresponding to “I”, and a micro switch (not shown) is attached to the bottom thereof. Similarly, a depression “U” corresponding to “U” is provided, and a microswitch is attached.

FIG. 3 is a functional system diagram of the lock 22K that operates in cooperation with the sub-shape.
In FIG. 3, the lock 22 </ b> K is provided with a switch 222 in a recess “a” corresponding to the main shape, and switches the connection destination of the monitoring control information input / output by the PLC 24. Further, as a program selection unit corresponding to the sub-shape, a switch that is turned on when the operation key K is attached to each of the depressions “I” and “U” is attached.

  These switches include an operation program of “reset” and “closed mode”, or a maintenance terminal T connected via a connector P to a program selection unit 221 in which a memory storing data designating the mode is stored. Is connected.

  Sub-shapes are prepared in the number corresponding to the number of types of sequences required for each emergency monitoring process by each remote monitoring control device.

  Here, the PLC 24 provided in each of the remote monitoring control devices 2a to 2n will be described. Conventionally, the equipment corresponding to each of the remote monitoring control devices 2a to 2n and the program corresponding to the device are separately stored in the memory 24b. For this reason, replacement of the PLC 24 at the time of failure involves rewriting of the stored program, and thus has a disadvantage that it cannot be performed promptly.

  In the present embodiment, the same specification is used by storing and accumulating the relay circuit program to be used as a candidate in the memory 24b of the PLC 24 in the plant, and the PLC 24 having the commonality is used. In the field processing or replacement, selection information on which relay circuit program stored in the memory 24b is used from the program selection unit 221 to the CPU 24a by the combination of the operation key K and the lock 22K that is mounted (selection information ( Signal, data).

  For example, it is stored in the memory 24b as a candidate program in which the operation keys Ka to Kn and the relay circuit programs of the remote monitoring control devices 22a to 22n are combined. Then, the program selection unit 221 is notified of data (for example, a code signal such as 01) for selecting and specifying a program used in the remote monitoring control device 2e, for example, by the PLC 24e of the remote monitoring control device 2e, A qualified program is read from the memory 24b and executed.

  As described above, in the remote monitoring and control apparatus 2, since only the sequence mode of the type designated in advance by the sub-shape of the operation key is executed by the lock 22K, it is possible to prevent an erroneous operation. Although this method increases the capacity of the memory 24b, there is an advantage that the common part of the management maintenance can be increased and the preparation on the site can be reduced.

  Further, as an improved form, the memory 24b of all the PLCs 24 does not store candidate programs for all relay circuits, but stores only a common processing program for controlling the driver 24c. The program selection unit 221 of the lock 22K is used as a storage means (memory), and the relay circuit program executed by each remote monitoring control device 2 is stored corresponding to the sub-shape, and the stored contents are transferred from the memory. However, the same effect can be obtained.

  This method has an advantage that the capacity and preparation of the memory 24b of the PLC 24 can be reduced. Further, since the operation keys and the locks need only be managed independently as a pair, the maintenance load on the entire system is reduced.

  In the above description, the lock 22K has different operation keys K, in other words, one lock can select a required sequence from a plurality of sequences by selecting and discriminating the sub shapes so that it can correspond to a plurality of sub shapes. ing. However, it is possible to prevent erroneous installation of the remote monitoring and control device 2 to which the operation key K is attached. There is a risk of an operation mistake (incorrect specification) that causes the key K to be mounted.

  Therefore, by providing a lock 22K with one sub-shaped recess for each sequence, the operation key K and lock 22K can be mounted only in a single combination to prevent erroneous specification and improve the fail-safe function. Also good.

  If the sub-shape is not provided, the management authority is transferred from the central monitoring control device 1 of the center to the remote monitoring control device 2, and the maintenance terminal connected via the button switch of the I / O unit 22 or the connector P. As described above, the necessary monitoring control operation is performed from T by the required procedure.

  The second embodiment is basically the same as the first embodiment, but a memory for storing control data for selecting a program of the program selection unit 221 provided in the lock 22K or a program executed by the PLC 24, or a memory Data output means for selecting and specifying the program recorded by 24b is provided for each of the operation keys Ka to Kn.

FIG. 4 is a functional system diagram of the operation key K and the lock 22K that operate in cooperation with the sub-shape in the second embodiment.
Then, instead of a micro switch (not shown) attached to the sub-shaped recess of the lock 22K, a connector or a connection terminal for connecting with the program memory of the operation key K is provided. When the operation key K is attached, operations related to selection of program data and the like are the same as those in the first embodiment.

  Further, as a modification, a method is used in which an RFID IC chip, which is a proximity wireless communication means, is embedded in the operation key K instead of the signal connection connector between the operation key K and the lock 22K, and the transceiver is attached to the lock 22K. May be.

  In this method, it is not necessary to install the program data of the relay circuit corresponding to each equipment and device in the PLC 24, so that not only the capacity of the memory 24b is small but also the maintenance of the PLC 24 is facilitated.

FIG. 5 is a connection diagram between the maintenance terminal T and the remote monitoring control device 2 in the third embodiment.
The third embodiment is a further modification of the second embodiment, in which one of the sub-shaped recesses of the lock 22K is provided with a relay connector p that connects the maintenance terminal T to the maintenance terminal T, and the maintenance terminal T is operated by the operation key K. It is linked or united with. The relay connector p is attached to “A” and “A” in FIG. The maintenance terminal T integrated with the operation key K stores and accumulates only program data required for each remote monitoring and control device 2 and is dedicated.

  In the fourth embodiment, although the main shape of the operation key K is not shown, for example, a common rhombus is used for all remote monitoring and control devices 2 such as “reset”, and the sub-shape is opposite to the previous example. The remote supervisory control device is identified by changing.

  Even if all remote monitoring and control devices 2a to 2n have a common shape such as a diamond-shaped fitting between the operation key K and the lock 22K, even if the detailed sequence of each remote monitoring and control device 2, that is, the program is different, each program itself is It is stored in advance in the memory 24b of the remote monitoring control device 2 or the lock 22K. If the common sequence names are distinguished, the operation start trigger is given to the CPU 24a of the PLC 24 of the remote monitoring control device 2 if the installation detection of either the main shape or the sub-shape operation key K is detected. Can do.

  In this method, since the shape of the operation key K used in the case of emergency operation is common, there is an effect of preventing an erroneous designation in which an operator arranged in the remote monitoring control device 2 designates another process.

  As described above, the plant monitoring and control system according to the embodiment of the present invention can be easily replaced with a replacement even if a failure occurs in the remote monitoring and controlling apparatus, and can prevent erroneous operation and maintain reliability. A control system and a remote monitoring control device 2 can be provided.

  The present invention can be applied even if the combination of the above configurations, the processing procedure, and the like are changed without departing from the gist of the above.

FIG. 6 shows another example of the shapes of the operation key K and the lock 22K.
In FIG. 6, the operation key K has a configuration and shape similar to a combination of jigsaw puzzle pieces. 6A is a combination of bubble-shaped pieces r1 to r6, FIG. 6B is a combination of polygonal pieces v1 to v6, and the main shape is indicated by the outer peripheral portion.

  In FIG. 6, the sub-shape corresponds to “1” for the piece portion filled in black (filled), and “0” for the portion of the piece frame (white portion). The numerical sequence of the combination of 1 and 0 in the arrays r1 to r6 (or v1 to v6) is the program identification number.

  The lock 22K identifies one of the remote monitoring and control devices 2a to 2n from the outer peripheral frame which is the main shape, and 1 or zero is a mechanical switch or an optical shape recognition technique as in FIG. , The part corresponding to each piece is read, and the program identification numbers are read out such as “r1 to r6” as “101110” and “v1 to v6” as “100001”.

  Further, the main shape may be one that designates one of the remote monitoring and control devices 2 to be mounted, or one that designates, for example, “closed gate” common to each remote monitoring and control device 2. A program for controlling the operation procedure in the closing sequence of each of the remote monitoring control devices 2a to 2n is designated by the combination of

1 Main supervisory control unit 2 (2a to 2n) Remote supervisory control unit 21 COM I / F (communication interface)
22 I / O (input / output unit)
221 Program selection unit 222 Switch 22K (22Ka to 22Kn) Lock 24 PLC (Programmable Logic Controller)
24a CPU
24b Memory 24c Driver 3 Network 5 (5a to 5m) Device K (Ka to Kn) Operation key p, P Connector T Maintenance terminal

Claims (10)

The central supervisory control device transmits and receives supervisory control information to and from at least one remote supervisory control device via the network, thereby monitoring and controlling the facilities and equipment installed in the plant to which the remote supervisory control device is connected. In plant monitoring and control system,
An operation key for designating identification information for the remote monitoring control device in a unique physical shape;
A PLC (Programmable Logic Controller) that executes a program that pre-stores the type and sequence of monitoring control for the connected facility / equipment;
Communication means for performing the transmission and reception with the central monitoring and control device;
Lock means to which the operation key having the specific shape to be specified can be attached;
When the operation key is mounted, switch means for switching the input / output destination of the monitoring control information input / output by the PLC from the communication means to the remote monitoring control device side;
A plant supervisory control system comprising: a remote supervisory control device comprising input / output means for outputting supervisory control information for causing the PLC to execute the supervisory control sequence. The central supervisory control device transmits and receives supervisory control information to and from at least one remote supervisory control device via the network, thereby monitoring and controlling the facilities and equipment installed in the plant to which the remote supervisory control device is connected. In plant monitoring and control system,
Operation keys for specifying identification information for the remote monitoring control device and the type and sequence of the monitoring control in a unique physical shape;
The type and sequence of the monitoring control to be performed on the connection destination device and the connection destination device are specified in advance,
A PLC that executes a program that pre-stores the type and sequence of monitoring control for the connected facility / equipment;
Communication means for performing the transmission and reception with the central monitoring and control device;
When the operation key is attached, a lock means for outputting as program selection information by extracting the specified identification information from the shape of the attached operation key;
When mounted, the switching means for switching the input / output destination of the monitoring control information input / output by the PLC from the communication means to the remote monitoring control device side, and the designation of the program selection information to the PLC A plant supervisory control system comprising: a remote supervisory control device comprising input / output means for outputting supervisory control information for executing the type and sequence of the supervisory control performed. The lock means is
Program data for the PLC to execute a sequence corresponding to the specified identification information is stored and accumulated, and when the operation key is attached, the stored program data is directed to the PLC via the switch means. The plant monitoring control system according to claim 2, wherein the plant monitoring control system is output. The operation keys are
When the PLC stores the program data for executing the sequence corresponding to the specified identification information, and is attached to the lock means,
The plant monitoring control system according to claim 2, wherein the stored program data is output to the PLC via the lock means and the switch means. The central supervisory control device transmits and receives supervisory control information to and from at least one remote supervisory control device via the network, thereby monitoring and controlling the facilities and equipment installed in the plant to which the remote supervisory control device is connected. In the remote monitoring and control device of the plant monitoring and control system,
The remote monitoring and control device includes:
An operation key for designating identification information for the remote monitoring control device in a unique physical shape;
A PLC that executes a program that pre-stores the type and sequence of monitoring control for the connected facility / equipment;
Communication means for performing the transmission and reception with the central monitoring and control device;
Lock means to which the operation key having the specific shape to be specified can be attached;
When the operation key is mounted, switch means for switching the input / output destination of the monitoring control information input / output by the PLC from the communication means to the remote monitoring control device side;
A remote supervisory control device for a plant supervisory control system, comprising: a remote supervisory controller comprising input / output means for outputting supervisory control information for causing the PLC to execute the supervisory control sequence. The central supervisory control device transmits and receives supervisory control information to and from at least one remote supervisory control device via the network, thereby monitoring and controlling the facilities and equipment installed in the plant to which the remote supervisory control device is connected. In the remote monitoring and control device of the plant monitoring and control system,
The remote monitoring and control device includes:
The type and sequence of the monitoring control to be performed on the connection destination device and the connection destination device are specified in advance,
Operation keys for specifying identification information for the remote monitoring control device and the type and sequence of the monitoring control in a unique physical shape;
A PLC that executes a program that pre-stores the type and sequence of monitoring control for the connected facility / equipment;
Communication means for performing the transmission and reception with the central monitoring and control device;
When the operation key is attached, a lock means for outputting as program selection information by extracting the specified identification information from the shape of the attached operation key;
Switch means for switching the input / output destination of the monitoring control information to be input / output by the PLC from the communication means to the remote monitoring control device side when the device is mounted;
Input / output means for inputting the program selection information and outputting monitoring control information for causing the PLC to execute the designated type and sequence of the monitoring control. Remote monitoring of a plant monitoring control system, Control device. The lock means is
Program data for the PLC to execute a sequence corresponding to the specified identification information is stored and accumulated, and when the operation key is attached, the stored program data is directed to the PLC via the switch means. The remote monitoring control apparatus according to claim 6, wherein the remote monitoring control apparatus is output. A signal transmission means between the operation key and the lock means;
The operation keys are
When the PLC stores the program data for executing the sequence corresponding to the specified identification information, and is attached to the lock means,
The remote monitoring control apparatus according to claim 6, wherein the stored program data is output to the PLC via the lock means and the switch means. The operation keys are
The shape according to claim 5 or 6, further comprising: a shape that can be attached to the lock that specifies the remote monitoring control device; and a shape that activates the switch means when attached to the lock. Remote monitoring and control device. The operation keys are
The remote monitoring control device according to claim 9, further comprising a sub-shape for specifying identification information for the type and sequence of the monitoring control when the lock is attached to the lock.

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