JPH0512585A - Plant monitoring device - Google Patents

Abstract

PURPOSE:To use this plant monitoring device for plant operation management in a usual state and to use the device for plant monitoring only when it is required by providing the device with a means for displaying an interruption on a display screen and a means for temporarily storing plant operation management processing. CONSTITUTION:A plant monitoring processor 3 always monitors the state of the plant 1 through a process input processor 2. When the status of the plant 1 requires operator's monitoring, e.g. when a process value to be monitored is being approached to an alarm limit value, the processor 3 judges the state and informs an interruption processor 6 of the judged result. At the point of time, a plant operation managing processor 5 judges whether the processing is being executed or not, and when the processing is being executed, the processor 6 temporarily stores the plant operation managing processing and displays a screen for plant monitoring while leaving a part of the plant operation management processing image. Consequently the plant monitoring device can execute plant operation management in an usual state and execute plant monitoring only when it is required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring apparatus capable of executing plant monitoring processing and plant operation management processing.

[0002]

2. Description of the Related Art CRTs are used in various industrial plants.
A plant monitoring device having a man-machine interface function and a process input processing function is installed to monitor the state of the plant.

FIG. 3 shows an example of the configuration of a conventional plant monitoring device. Various process quantities from the plant 1 are processed by the process input processing device 2 and the plant monitoring processing device 3 performs processing for plant monitoring. And then C
It is displayed on the man-machine interface device 4 such as RT. However, the conventional plant monitoring device is dedicated to monitoring and cannot be used for other work.

[0004]

Therefore, in the conventional apparatus, when performing work other than plant monitoring, for example, plant operation management processing work, the operator leaves the plant monitoring apparatus and selects a plant operation management apparatus installed separately. I had to move and work.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a plant monitoring device which is normally used for plant operation management and can monitor the plant only when necessary. It is a thing.

[0006]

A plant monitoring apparatus of the present invention is a plant monitoring apparatus having a man-machine interface function and a process input processing function for capturing and processing an input from a plant, and means for displaying an interruption on a display screen. And a means for temporarily holding the plant operation management processing so that the plant operation management processing can be executed in addition to the plant monitoring processing.

[0007]

In the apparatus of the present invention having such a structure, the operator performs the plant operation management processing by using the plant operation management processing apparatus except when the plant monitoring is required. When the operator needs to monitor the plant, the plant monitoring display is interrupted on the display screen at that time, and the plant operation management process that has been executed up to that point is temporarily retained. It

[0008]

EXAMPLES Next, examples of the present invention will be described. The following embodiments will be described by taking an example of a case where a process plan is normally created as a plant operation management process in an apparatus that catches an abnormal sign of a plant state and monitors the preventive maintenance.

FIG. 1 is a block diagram of a plant monitoring apparatus of the present invention, in which 1 is a plant, 2 is a process input processing apparatus,
Reference numeral 3 is a plant monitoring processing device, 4 is a man-machine interface device such as a CRT, 5 is a plant operation management processing device, and outputs of the plant monitoring processing device 3 and the plant operation management processing device 5 are transmitted via an interrupt processing device 6 It is input to the machine interface device 4.

In the apparatus of the present invention having the above-mentioned structure, the plant monitoring processor 3 always inputs information from the plant 1 via the process input processor 2 and monitors it. On the other hand, the operator uses the plant operation management processing device 5 to create a process plan via the man-machine interface device 4.

At this time, when the plant monitoring processor 3 detects the occurrence of a situation to be monitored by the operator, the plant monitoring processor 3 notifies the interrupt processor 6 of it. In this case, the interrupt processing device 6 temporarily holds the process plan creation, and forcibly displays a display screen for plant monitoring on the man-machine interface device 4. Therefore, the operator can monitor the plant by looking at the display screen on the man-machine interface device 4. In addition, when the plant monitoring by the operator becomes unnecessary, it is possible to return to the original work automatically or manually.

Next, the operation of the device of the present invention configured as described above will be described with reference to FIG. The plant monitoring processor 3 constantly monitors the state of the plant 1 via the process input processor 2. At that time, when the state of the plant 1 needs to be monitored by an operator, for example, when the process amount to be monitored is approaching the alarm limit value, the plant monitoring processor 3 determines it. , And notifies the interrupt processing device 6 (step 101). At that time, it is judged whether or not the plant operation management processing is executed by the plant operation management processing device 5 (step 10).
2). If the plant operation management process is being executed,
The interrupt processing device 6 temporarily holds the plant operation management process (step 103).

Subsequently, a screen for plant monitoring is displayed as an interrupt by the interrupt processing device 6. At this time, in order not to impair the continuity of the plant operation management process, the screen of the plant operation management process is displayed in a form in which at least a part of the screen is not hidden and remains (step 104). As a result, the operator monitors the plant using the plant monitoring screen, but if monitoring by the operator becomes unnecessary (step 105), the operation returns to the original plant operation management processing (step 106), and the operator Continue plant monitoring only if the situation requires plant monitoring (step 1
07).

As described above, in the present invention, the plant monitoring process and the plant operation management process are performed in parallel, and when the operator needs to monitor the plant, the plant operation management process is temporarily held, Display a screen for plant monitoring after leaving a part of the screen for plant operation management processing. Therefore, it is possible to normally manage the plant operation and monitor the plant only when necessary.

In the above embodiment, an example in which the plant monitoring screen is not normally displayed has been described. However, within a range that does not hinder the plant operation management process, for example, a small box in the corner of the screen displays a normal plant display. You may do it. The plant operation management processing is not limited to the above-described process plan creation, but includes various plant operation management operations other than plant monitoring.

[0016]

As described above, according to the present invention, plant monitoring and plant operation management are performed in parallel, and when the operator needs to monitor the plant, the plant operation management process is temporarily held, By displaying a screen for plant monitoring after leaving a part of the screen for plant operation management,
Normally, plant operation management is performed, and plant monitoring can be performed only when necessary.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a plant monitoring apparatus showing an embodiment of the present invention.

FIG. 2 is a flow chart of processing steps in an embodiment of the present invention.

FIG. 3 is a configuration diagram of a conventional plant monitoring device.

[Explanation of symbols]

 1 ………… Plant 2 ………… Process input processing device 3 ………… Plant monitoring processing device 4 ………… Man-machine interface device 5 ………… Plant operation management processing device 6 ………… Interrupt processing device

Claims (1)

Claims: What is claimed is: 1. A plant monitoring device for monitoring a plant, comprising a man-machine interface function and a process input processing function for fetching and processing an input from the plant, and means for displaying interrupts on a display screen and the plant. A plant monitoring device characterized by being provided with means for temporarily holding an operation management process so that the plant operation management process can be executed in addition to the plant monitoring process.