Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Control apparatus, control method and control program

A control device and communication control technology, applied in the direction of electrical testing/monitoring, etc., can solve the problems of reduced transmission performance and increased data, and achieve the effect of maintaining functional safety and maintaining transmission performance

Active Publication Date: 2008-01-02
HITACHI LTD +1
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since each input module is associated with a time stamp, there is a problem that the data increases, and the transmission performance decreases when the data is transmitted, especially when the serial line is passed.

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
  • Control apparatus, control method and control program
  • Control apparatus, control method and control program
  • Control apparatus, control method and control program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] Embodiments of the present invention are described below

[0058] 【Example】

[0059] FIG. 1 shows a control device according to a first embodiment of the present invention. The central storage operation device 1 (CPU) is connected with the communication control device 3 (P0) through the parallel transmission bus 0 (line 0), and the communication control device 3 (P0) communicates with the communication control device 3 (P0) through the control bus 2 (line 1) using serial transmission. Data is transmitted and received between the control devices 4 (S1) and 7 (S2).

[0060] The communication control device 4 (S1) and the input device transmit and receive input data and control signals from the controlled object 6 via the input / output bus 5 (line 2) using parallel transmission. The communication control device 7 ( S2 ) and the output device transmit and receive output data and control signals for the control object 6 via the input / output bus 8 (line 2 ) using parallel tr...

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

In a control apparatus which transmits / receives data from a central processing unit via a serial transfer channel to a communication control unit, and groups / distributes data of input / output units from the communication control unit via a parallel transfer channel, the control apparatus initiates a diagnosing unit of the parallel transfer channel in response to an instruction issued from the central processing unit, and diagnosis the input / output units subsequent to the diagnosis of the transmission channel. Data input / output timing of the input / output unit is also instructed from the central processing unit, so that the central processing unit can suppress lowering of response speeds caused by the diagnoses, and can maintain the periodicity of the data input / output.

Description

technical field [0001] The present invention relates to a control device, a control method, and a control program, especially a control device with ideal safety functions. Background technique [0002] In recent years, there has been an increasing demand for ensuring the safety of human life and the environment through programmable electronic devices. In contrast to intrinsic safety, safety that presupposes the normal operation of devices is called functional safety. Of course, the expansion of the application of functional safety contributes to the significant improvement of the performance and reliability of electronic devices. [0003] The effect of the introduction of programmable electronic devices is not limited to the realization of a small and lightweight device that exceeds the reliability of a protective logic device composed of a conventional mechanical contact relay coil. Conventionally, the factory equipment to be protected is periodically stopped to check the...

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
IPC IPC(8): G05B23/02
Inventor 阪东明小林正光白石雅裕小野塚明弘梅原敬小仓真小林英二石川雅一古田康幸益子直也船木觉关裕介大谷辰幸笹木亘大塚祐策
Owner HITACHI LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com