Field bus fault diagnostic method based on industrial computer

A fault diagnosis and field bus technology, applied in the field of control systems, can solve the problems of complex field bus fault detection, and achieve the effect of easy operation, system maintenance, and easy diagnosis.

Inactive Publication Date: 2011-06-01
TIANJIN TIANDUAN PRESS CO LTD
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Problems solved by technology

However, the detection of fieldbus faults in large-scale press control systems is a relatively complicated task

Method used

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  • Field bus fault diagnostic method based on industrial computer
  • Field bus fault diagnostic method based on industrial computer

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Embodiment Construction

[0010] In order to further understand the content of the invention, features and effects of the present invention, the following embodiments are enumerated hereby, and in conjunction with the accompanying drawings, the following of the present invention is described in detail:

[0011] Such as figure 1 Shown, the fieldbus fault diagnosis method based on industrial computer of the present invention is based on Taiwan's Advantech industrial computer and utilizes Siemens' WinCC configuration software to develop press operating platform and Siemens PROFIBUS fieldbus diagnostic display system; programming in Siemens CPU416-2DP , once the field bus fails, the Siemens CPU416-2DP will call the field bus diagnostic program, and the CPU will feed back the field bus diagnostic information to the industrial computer, and the operator can clearly see the field line fault through the WinCC operation interface. Such as figure 1 As shown, when a bus fault occurs during the operation of the P...

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Abstract

A field bus fault diagnostic method based on an industrial computer performs the following fault diagnostic program when a bus fault occurs in the operation process of a programmable logic control (PLC) control system, wherein the program comprises the steps of: 1) firstly judging whether the fault is a data pulse (DP) network fault or not, if not, returning to the PLC control system, otherwise entering the next step: 2) calling out the corresponding network diagnosis program; 3) calling out a code group in the corresponding network diagnosis program; 4) determining the fault code, and judging whether a code in the code group is corresponding to the fault part or not; if so, determining the code to be the fault code, and entering the next step, otherwise performing judgment continuously; 5) outputting a warning text to the computer; 6) returning to the main control program. By the field bus fault diagnostic method based on an industrial computer provided by the invention, a friendely operation interface and an in-time field diagnosis interface are developed for a 130MN heavy numerical control hydraulic forging press; operators can conveniently diagnose the field bus fault in time; and the operation and system maintenance are convenient.

Description

technical field [0001] The invention belongs to a control system of a large press, in particular to a field bus fault diagnosis method based on an industrial computer. Background technique [0002] With the continuous development of heavy industry and aerospace industry, there has been an unprecedented demand for large forgings, so forging equipment has been developed accordingly. However, due to the increasingly complex hydraulic system and electrical system, especially the increasing application of fieldbus, it involves the detection and maintenance of fieldbus faults. However, the detection of field bus faults in large-scale press control systems is a relatively complicated task. Therefore, there is a great need for a system that can facilitate operators to diagnose and repair fieldbus failures in time. Contents of the invention [0003] In order to solve the technical problems existing in the known technology, the present invention provides an industrial computer-bas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 施宝酉
Owner TIANJIN TIANDUAN PRESS CO LTD
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