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PROFIBUS bus type electric actuating mechanism controller with redundancy functions

An electric actuator, bus-type technology, applied in computer control, program control, general control system, etc., can solve problems such as poor reliability and poor anti-interference ability, to solve loss and interference, less peripheral devices, and improve processing speed Effect

Inactive Publication Date: 2016-02-03
TIANJIN JINDA ACTUATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, industrial process control systems are mainly based on distributed control systems. Electric actuators generally use 4-20mA DC analog signals as control signals. However, industrial control systems using analog control methods have problems such as poor anti-interference ability and poor reliability.

Method used

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  • PROFIBUS bus type electric actuating mechanism controller with redundancy functions
  • PROFIBUS bus type electric actuating mechanism controller with redundancy functions
  • PROFIBUS bus type electric actuating mechanism controller with redundancy functions

Examples

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Embodiment Construction

[0021] In order to further understand the content of the invention, features and effects of the present invention, the following examples are given in detail as follows:

[0022] See figure 1 , the present invention is composed of a first microprocessor, a second microprocessor, a third microprocessor, a photoelectric isolation circuit, buttons, an infrared receiving circuit, a display module, a VPC3+C bus interface circuit and an ADM2486 interface circuit. In the embodiment, the first microprocessor has selected the PIC46K80 high-performance microprocessor of MIROCHIP Company for use, and the PIC46K80 microprocessor has functions such as integrated A / D converter, watchdog circuit, Flash and EEPROM, and the second microprocessor selects The ATMEGA162 high-performance microprocessor is adopted, and the ATMEGA162 has the characteristics of large on-chip RAM area, high speed and low power consumption. The first microprocessor is respectively connected with the button, the infrar...

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Abstract

The invention belongs to the technical field of electric actuators and in particular relates to a PROFIBUS bus type electric actuating mechanism controller with redundancy functions. The electric actuating mechanism controller comprises a first microprocessor, a second microprocessor and a third microprocessor, wherein the first microprocessor is respectively connected with the second microprocessor and the third microprocessor in a bidirectional manner by virtue of serial communication interfaces; the first microprocessor is respectively connected with keys and a display module by virtue of an I / O interface; the first microprocessor receives a position signal by virtue of an A / D interface, receives an alarm signal by virtue of a photoelectric isolator circuit and outputs a motor control signal by virtue of an I / O interface; and the second microprocessor and the third microprocessor are respectively connected with an ADM2486 interface circuit by virtue of a VPC3+C bus interface circuit.

Description

technical field [0001] The invention belongs to the technical field of electric actuators, in particular to a PROFIBUS bus type electric actuator controller with redundant functions. Background technique [0002] The electric actuator is the terminal executive device in the industrial process control system. Its main function is to convert the control signal sent by the control system into a corresponding action to achieve the purpose of controlling the position of the shut-off member in the valve or the position of other adjustment mechanisms. It is widely used. Used in electric power, metallurgy, petrochemical, heating, cement, building materials, textile, food and other industries. At present, industrial process control systems are mainly distributed control systems. Electric actuators generally use 4-20mA DC analog signals as control signals. However, industrial control systems using analog control methods have problems such as poor anti-interference ability and poor rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24024
Inventor 宋喆刘伟张中远安文彬
Owner TIANJIN JINDA ACTUATOR CO LTD
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