JPS5991484A - Display unit for industrial computer system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a display device in an industrial computer system. More specifically, the present invention relates to a display device in which a data former-vl-transferred from a computer is improved so that a program can update graphics and characters at high speed.

In industrial computer systems, display devices are
This system mainly monitors the operating status of the plant, and displays plant parameters that change from moment to moment on a display device using graphics, text, colors, bling status, etc., and provides various information to operators monitoring plant operations. Therefore, it is required for industrial computer systems to be able to update the plant status on a display device at regular intervals and at high speed.

FIG. 1 is a block diagram showing an example of this type of system. In this figure, 1 is a computer 2, which is an auxiliary storage device of this computer, 6 is a process output device that inputs and outputs signals from the plant, and 4 is a display that receives signals from the computer 1 and controls a CRT 5 that is a display means. It is the controller of the device.

FIG. 2 is a conceptual diagram of the data format transferred from the computer 1 to the controller 4. In this diagram,
21 is information indicating the position of the display, 22 is information indicating the color, 2'5 is information indicating the link (on/off),
24 is a code group of characters or figures to be displayed.

A plurality of signals having such data formats are combined and transferred from the computer 1 (programming power) to the display/play equipment controller 4, and a desired display is made on the CRT 5. In this system, when updating the screen at a constant cycle, the computer 1 detects the display cycle, and the program stored in the computer 1 refers to the value read from the process turnout device 6. , the data format normally stored in the auxiliary storage device 2 is read out, and based on the process input value, all data formats having the configuration shown in FIG. 2 are generated. In conventional devices, even when changing only the lustful appearance and link information, it is necessary to collect and convert character and graphic codes that do not need to be changed, which has the disadvantage of not being able to update periodically at high speed.

The invention was made with the aim of eliminating such drawbacks in the conventional device.

The present invention is characterized in that the data format transferred from the computer to the display manufacturing controller allows only colors and links to be returned, and a display device that can update the display at high speed has been developed. There's something I'm trying to do.

FIG. 6 is a conceptual diagram showing an example of a data format used in the present invention. In this figure, 21
is location information, 22 is irosashiya, 26 is plink specification, 61
indicate invalid data, and the present invention differs from the one shown in FIG. 2 in that a portion 61 indicating invalid data is provided. Computer 1 '6.1 Transfers the signal in the data form shown in FIG. 3 to the display device controller 4. The controller 4 receives such a signal from all parties 1d.
Then, it is detected whether or not invalid data 61 is indicated in this signal, and if it is indicated, KCRT has already been
5, at the position shown at 21, the figures and characters displayed in the 22, 3, 3, and 26 plink states are displayed as one of the reeds. If invalid data 31 is not shown, the display will not be updated according to this data200. Therefore, the program in the computer 1 will not be able to transfer already transferable figures and characters from the auxiliary storage again, or There is no longer any need to perform conversions, etc.1. :
It is possible to perform periodic updates at high speed.

FIG. 4 is a conceptual diagram showing another example of the data format in the present invention. Here, an invalid color 41 and an invalid blink 42 gold are provided. This makes it possible to change the color of the display (9) by changing only the plink state.

[Detailed description of the invention]

As stated above, the present invention improves the format of the data transmitted from the dt-computer, and enables high-speed periodic updates.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing an example of a system to which the present invention is applied, Fig. 2 is a conceptual diagram showing a conventional data format, and Figs. 3 and 4 are data formats according to the present invention. FIG. 1... Computer, 2... Storage device 6... Process input/output device 4... Display manufacturing controller 5
...CRT (display means) agent, %'
if Shinichi

Claims (1)

[Claims] (1) In a device that outputs information output from a computer to a display device controller and displays it on a display means controlled by this controller, the data format transferred from the computer to the display device controller includes a color and/or link. A display device for an industrial computer system, characterized in that an invalid data portion is provided to indicate that a state change is permitted.