JPS61214020A - Plant supervisory unit - Google Patents

Abstract

PURPOSE:To monitor accurately plant data by detecting a trouble of a printer through a trouble detecting means and storing the data obtained after the occurrence of printer fault into a magnetic memory through the changeover of a switch means to print said data after the trouble of the printer is recovered. CONSTITUTION:A plant 9 is controlled by a plant control part 8, and various data, the abnormal states, etc. of the plant 9 are applied to a CPU part 1 of a plant supervisory unit via an interface IO 16. The CPU part 1 processes data according to a program of a memory part 2. These processed data are displayed on a CRT device and a keyboard device 4 via an IO part 10 and printed by a printer 5 via a common IO part 11. If a trouble detecting means 11a of the part 11 detects a trouble of the printer 5, a switch means 11b switches the output data of the part 11 to the side of a memory device 6 for storage. Then the data stored in the device 6 are printed by the printer 5 after the trouble of the printer 5 is recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a plant monitoring device that monitors abnormal conditions in a plant and outputs information to a printing device when an abnormality occurs.

[Conventional technology]

An example of a conventional plant monitoring device is shown in FIG.

In the figure, (1) is the central processing unit (hereinafter abbreviated as CPU) of the plant monitoring device, the memory portion of the plant monitoring device, (8) is the interface with peripheral devices, and (4) is the display device ( (hereinafter abbreviated as CR'l' device) and keyboard device, (5) is a printing device, (6)
(7) is an interface section between the plant monitoring device and the plant control section; (8) is the plant control section; (9) is the plant.

FIG. 4 shows a procedure for printing data on abnormal conditions of the plant in a brooch yard.

Next, the operation of the plant monitoring device configured as described above will be explained.

Plant control section (8) that controls the actual plant (9)
passes various plant data, abnormal conditions, etc. to the CPU section (1) of the monitoring device via the interface section (7).

The CPU section (1) processes the data based on the program stored in the memory section (2) and displays it on the CRT device (4) via the interface section (8). It is printed by a printing device (5) or stored in a magnetic storage device (6).

[Problem that the invention seeks to solve]

Conventional plant monitoring devices are configured as described above, so if a problem occurs such as the printing device (5) running out of paper or the power goes down, even if an abnormality occurs in the plant (9), subsequent information will not be transmitted. There was a problem that it could not be output. Also, since the process is performed according to the procedure shown in Figure 4,
There was a problem in that no data about the abnormal state of the plant (9) after trouble with the printing device (5) was stored.

This invention was made in order to solve the above-mentioned problems, and aims to provide a plant monitoring device that can continue monitoring the plant as usual without losing printed information even if an abnormality occurs in the printing device. This is the purpose.

[Means for Solving the Problems] A plant monitoring device according to the present invention has a common interface between an abnormality detection means for detecting an abnormal state of a printing device and a switching means for switching from the printing device to a magnetic storage device. It is set up in the department.

[Effect]

When an abnormality in the printing device is detected by the abnormality detection means of the common interface section mentioned above, the switching means switches from the printing device to the magnetic storage device and automatically outputs subsequent print data to the magnetic storage device, and the printing device is restored. When this happens, the stored data is retrieved from the magnetic storage device and output to the printing device.

〔Example〕

FIG. 1 is a block diagram of a plant monitoring device that is an embodiment of the present invention.

In the figure, the same or corresponding parts as in FIG. 6 are given the same reference numerals.

01) is a common interface unit between the printing device @ (5) and the magnetic storage device (6).

The common interface section (11) includes a printing device (5).
and an abnormality detection means (1ia) for detecting an abnormal state of the printing device (5), and when the abnormality detection means (11a) detects an abnormal state of the printing device (5), the printing device (5) prints subsequent print data. It also has switching means (11b) for outputting to the magnetic storage device (6).

Next, the operation of the plant monitoring device having the above configuration will be explained.

Plant control unit (8) that controls the actual plant (0)
is connected to the plant (9) via the interface part (γ)
Various data, abnormal conditions, etc. are sent to the CP of the plant monitoring equipment.
Send to U section (1). CPU section (1) Vi, memory section (2
) The data is processed and processed based on the program in , and stored in the magnetic storage device (6).

Here, when the interface section 01) detects an abnormal state of the printing device (5) by its abnormality detection means (11a), the switching means (11b) switches from the printing device (5) to the magnetic storage device (6). Then, the print data is output to the magnetic storage device (6).

The print data file created in the magnetic storage device (6) is automatically saved from the interface section 01) when the printing device (5) is restored, or when the operator requests it from the keyboard device (4). It will be printed.

A flowchart showing the processing procedure of the above plant monitoring device is shown in FIG.

In the above embodiment, the output light of the print data is switched by the switching means (11b) of the common interface section 01).
), but the program in the memory unit (2) may be provided with this function. Further, the storage device is not limited to a magnetic storage device, and various large-capacity storage devices can be used.

〔Effect of the invention〕

As described above, according to the present invention, even if some abnormality occurs in the printing device of the plant monitoring device and printing becomes impossible, the printing data is automatically output to the magnetic storage device via the common interface section. The contents of the print data file in the magnetic storage device are stored in the magnetic storage device, and after the printing device (5) returns to normal condition, the contents of the print data file in the magnetic storage device are printed. This has the effect that accurate program land monitoring can be performed without losing any data.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a plant monitoring device according to an embodiment of the present invention, FIG. 2 is a flowchart showing a procedure for processing print data in the plant monitoring device, and FIG. 3 is an example of a conventional plant monitoring device. A block diagram showing
FIG. 4 is a flowchart showing the procedure for processing print data in the conventional plant monitoring device. In the figure, (1) is the CPU section, (2) is the memory section, (
8) is an interface section, (4) ll''1tcRT device and keyboard device, (5) ld printing device, (6)
is a magnetic storage device, (γ) is an interface section, (8)
hubrant control section, (9) is the plant, 01 is the interface section, (11a) is the common interface section, (11a) is the
) is an abnormality detection means, and (1lb) is a switching means. In addition, in the figures, the same symbols indicate the same or corresponding parts.

Claims (1)

[Claims] In a plant monitoring device that monitors a plant and outputs an abnormal state of the plant to a printing device, an abnormality detection means detects when an abnormality occurs in the printing device and becomes unable to print, and the abnormality detection means A plant monitoring device characterized in that it has a switching means for switching and storing detected print data in a mass storage device such as a magnetic storage device when an abnormality in the printing device is detected.