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Industrial control system as well as control method and control device thereof

A technology of an industrial control system and a control method, which is applied in the field of control, and can solve problems such as the complexity of the establishment process of the industrial control system, the reduction of the reliability of the industrial control system, and the error of the control device

Active Publication Date: 2013-07-24
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only makes the establishment process of the industrial control system more complicated, but also easily leads to errors in the control device, which reduces the reliability of the industrial control system and affects the stability and reliability of the industrial control system.

Method used

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  • Industrial control system as well as control method and control device thereof
  • Industrial control system as well as control method and control device thereof
  • Industrial control system as well as control method and control device thereof

Examples

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Embodiment Construction

[0064] The embodiment provided by the present invention proposes based on the characteristics of the data frame (CAN frame) transmitted by the CAN (Controller Area Network, controller local area network) bus, and the CAN frame includes 4 bytes CAN ID (Identity, identity identification number) and 8 bytes data bits. External device variable values ​​are transmitted in data bits.

[0065] Embodiments provided by the present invention are described below. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0066] The control method of the industrial control system provided by the first embodiment of the present invention includes a data frame building process and a data frame parsing process. And a plurality of external device variable information groups...

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Abstract

The invention discloses an industrial control system as well as a control method and a control device thereof. The control method of the industrial control system comprises a data frame framing process and a data frame resolving process. The data frame framing process comprises the following steps of acquiring CAN (Controller Area Network) ID (Identity), data bits and data length according to variable names of external equipment; and framing data frames according to external equipment variable values as well as the CAN ID, the data bits and the data length. The data frame resolving process comprises the following steps of acquiring the data bits and the data length according to the CAN ID of data frames; and acquiring the external equipment variable values of the data frames according to the acquired data bits and data length. By utilizing the control method, by virtue of updating or increasing the information of an external equipment variable information group and a CAN data information group, the communication between the control device and the external equipment can be ensured, the data frame framing and the data frame resolving can be realized, while the universality of the control device is improved or kept, the assembling process of the industrial control system is simplified, and the stability and reliability of the industrial control system are improved.

Description

technical field [0001] The invention relates to control technology, in particular to a control method for an industrial control system. It also relates to a control device for an industrial control system. Based on the control device of the industrial control system, it also relates to an industrial control system including the control device. Background technique [0002] Generally speaking, an industrial control system may include control devices and application actuators. The application actuator includes a number of appropriate external devices to achieve specific functions and control and monitoring. [0003] Generally speaking, in order to make the application actuator perform predetermined functions smoothly, the control device must have devices corresponding to the external devices of the application actuator, so as to realize the communication between the control device and the external equipment of the application actuator. When the external equipment changes, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 熊俊吴丹盛四华
Owner SANY HEAVY IND CO LTD (CN)
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