Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and system for safety-relevant input to a control system

A control system and safety control module technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as hardware changes

Active Publication Date: 2018-03-16
ABB (SCHWEIZ) AG
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Systems and methods for triggering safety actions from operator panels are therefore known in the prior art, but these known systems require Hardware changes in the panel

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and system for safety-relevant input to a control system
  • A method and system for safety-relevant input to a control system
  • A method and system for safety-relevant input to a control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The gist of the present invention is to provide systems and methods on how to trigger functional safety actions by using standard operator panels.

[0032] refer to figure 1 , the system comprises an operator panel 1 , or more than one operator panel if required, connected to a PLC (Programmable Logic Controller) 11 comprising a non-safety CPU module 4 and a safety CPU module 7 . In the example, the operator panel 1 is here a display device with touch input, in particular by means of a touch screen, such as, for example, a tablet PC.

[0033] The non-safety CPU module 4 is for controlling a non-safety process 12 and the safety CPU module 7 is for controlling a functionally safe process 13 . The non-safety process 12 and the functionally safe process 13 together constitute a process or machine 14 to be controlled by the PLC 11 .

[0034] The operator panel 1 has two communication paths through the non-safety CPU module 4 to the safety CPU module 7 . Those communicatio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A system (100) and a method for safety relevant input to a control system (11), said control system (11) including a PLC which includes a non-safety control module (4) for controlling non-safety processes (12), and a safety control module (7) for controlling functional safety of processes (13), said system (100) further including an operator panel (1) for user selection of safety-related object input, characterized in that the said system (100) includes two communication paths (2, 5; 3, 6) between the operator panel (1) and the safety control module (7), that each of the communication paths (2, 5; 3, 6) uses a different communication protocol, that each communication path (2, 5; 3, 6) goes through the non-safety control module (4) to and from the safety control module (7), that the first communication path (2, 5) transfers object code and the second communication path (3, 6) transfers masked object code.

Description

technical field [0001] The present invention relates to a method and a system for safety-related input to a control system comprising a PLC, which stands for Programmable Logic Controller. The control system includes a non-safety control module for controlling a non-safety process and a safety control module for controlling a functionally safe process, the system further comprising an operator panel for input of safety-related objects by way of the operator panel user selection. The patent application relates to functional safety control systems in factory and process automation applications. Background technique [0002] EP 2 551 787 B1 discloses a device for safety-related input, comprising: a display device with touch input (in particular by means of a touch screen) having an acquisition module for acquiring different touch inputs on the display; an image data line , for transmitting image data from the computer unit to the display device; and a test unit, which is conn...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0428G05B2219/24165G05B2219/13023G05B2219/15123G05B19/058G05B2219/13144G05B2219/14006
Inventor Y.弗亚H.诺伊珀特尔T.埃瓦尔德
Owner ABB (SCHWEIZ) AG