PROFINET remote I/O control device based on ANYBUS-S

A control device and remote technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve problems such as hindering development, large development cost and cycle, and achieve the effect of avoiding burnout and high application effectiveness.

Inactive Publication Date: 2011-07-13
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its development cost and cycle are relatively large, ...

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  • PROFINET remote I/O control device based on ANYBUS-S
  • PROFINET remote I/O control device based on ANYBUS-S
  • PROFINET remote I/O control device based on ANYBUS-S

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Embodiment Construction

[0031] figure 1 The overall block diagram of the system. Among them, unit 1 is a PROFINET interface unit, unit 2 is a digital input circuit, unit 3 is a digital output circuit, unit 4 is an analog input circuit, and unit 5 is an analog output circuit. Connect the short-circuit protection circuit to the power port of each part. The range in the virtual frame is the designed remote I / O, which is connected to PROFINET industrial Ethernet.

[0032] This system takes the ANYBUS-S module as the core, and completes its initialization function through the control system control module designed by the microcontroller AT89S52, and connects the remote I / O to the PROFINET network. These remote I / Os include 16-way DI, 16-way DO, 4-way AI and 2-way AO. It can be seen from the above block diagram that the design of the system can be divided into three parts. The first part is the ANYBUS-S module controlled by the single chip microcomputer. It is the core of the whole system and determines...

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Abstract

The invention discloses a PROFINET remote I/O control device with short-circuit protection and self-diagnosis functions based on ANYBUS-S, which comprises a PROFINET interface unit for finishing initialization of the ANYBUS-S by a microcontroller and performing data communication with the PROFINET, an I/O interface unit for expanding an I/O port of a singlechip through a 8255 interface and processing peripheral digital quantity and analogue quantity data through a photoelectric coupling isolation circuit and AD and DA conversion circuits, and a short-circuit protection and self-diagnosis unit for cutting off power to perform short-circuit protection when a short circuit occurs in the I/O interface unit circuit, and transmitting the diagnosis data of the short circuit process to the PROFINET interface unit. The remote I/O device provided by the invention has the short-circuit protection and self-diagnosis functions, can cut off power and provide self-diagnosis information when the short circuit occurs in an interface load, and can automatically back to work when the short circuit fault is eliminated.

Description

technical field [0001] The invention relates to the technical field of industrial Ethernet, in particular to a device for PROFINET remote I / O control with short-circuit protection and self-diagnosis functions. Background technique [0002] As a new industrial control network, PROFINET is being used more and more widely, but it still has many aspects to be studied or is being studied, especially the development of the interface. At present, most of the research on PROFINET is in the development of third-party interfaces (similar to gateways), and only a few companies such as HMS and Hilscher have launched third-party interface modules. As a developer of PROFINET, what Siemens has launched are shaped, application-oriented products, without much secondary research and development value. Because PROFINET is a communication standard that has just been launched, and it has not yet reached the approval of most people when other fieldbuses and DCS almost occupy the entire market. ...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 陈在平贾超倪建云董恩增王永刚
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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