Modular industrial control board

An industrial control, modular technology, applied in program control, computer control, general control system, etc., can solve problems such as single function and lack of flexibility, reduce the frequency of production system adjustment, improve stability and reliability, Easy to produce effects

Active Publication Date: 2014-12-24
严格集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing industrial control boards have relatively single functions, can only realize basically fixed functions, and lack flexibility, and provide a modular industrial control board

Method used

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Experimental program
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specific Embodiment approach 1

[0015] Specific implementation mode one: the following combination figure 1 Describe this embodiment, the modular industrial control board described in this embodiment includes an ISA control motherboard, and the ISA control motherboard is configured with an A / D parallel input module 3, a D / A parallel output module 4, and a D / I parallel Input module 5 and D / O parallel output module 6,

[0016] The ISA control motherboard includes a mainboard CPLD1 and a bus driver module 2, and the mainboard CPLD1 is connected to the ISA bus through the bus driver module 2; A / D parallel input module 3, D / A parallel output module 4, D / I parallel input module 5 The D / O parallel output module 6 is all connected on the ISA bus through the bus driver module 2; the address signal output end of the ISA bus is connected with the address signal input end of the main board CPLD1 through the address bus; the control signal output end of the ISA bus is connected through the control The bus is connected t...

specific Embodiment approach 2

[0024] Specific implementation mode two: the following combination figure 2 Illustrate this embodiment mode, this embodiment mode is described further to embodiment one, A / D parallel input module 3 comprises analog multi-way switch 301, A / D conversion chip 302 and lower CPLD303; Analog multi-way switch 301 receives four-way analog input signal , the output end of the analog multi-way switch 301 is connected with the analog signal input end of the A / D conversion chip 302, and the digital signal output end of the A / D conversion chip 302 is connected with the digital signal input end of the lower CPLD303; the gating control of the lower CPLD303 The signal output terminal is connected with the gate control signal input terminal of the analog multiplexer 301; the conversion control command output terminal of the lower CPLD303 is connected with the conversion control command input terminal of the A / D conversion chip 302;

[0025] The data output end of the lower CPLD303 is connecte...

specific Embodiment approach 3

[0029] Specific implementation mode three: the following combination image 3 with Figure 4 Describe this embodiment mode, this embodiment mode will further explain Embodiment 1, D / A parallel output module 4 comprises signal conditioning circuit 401, D / A conversion chip 402 and reference voltage circuit 403; The reference voltage output end of reference voltage circuit 403 and The reference voltage input end of D / A conversion chip 402 is connected; The upper computer instruction input end of D / A conversion chip 402 is connected with the instruction output end of mainboard CPLD1; The analog data input end of D / A conversion chip 402 is connected with bus driver module The data output end of the ISA bus is connected;

[0030] The digital signal output terminal of the D / A conversion chip 402 is connected with the digital signal input terminal of the signal conditioning circuit 401; the signal conditioning circuit 401 outputs four analog signals.

[0031] The signal conditioning...

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Abstract

The invention discloses a modular industrial control board and belongs to the field of industrial measurement and control systems. The modular industrial control board solves the problems that existing industrial control boards are single in function, can only achieve basic and fixed functions and is insufficient in flexibility. The modular industrial control board comprises an ISA control mother board, an A / D parallel input module, a D / A parallel output module, a D / I parallel input module and a D / O parallel output module are configured on the ISA control mother board, the ISA control mother board comprises a main board CPLD and a bus drive module, the main board CPLD and the four modules are connected on an ISA bus in a hanging mode through the bus drive module, and an address bus and a control bus are connected between the ISA bus and the main board CPLD; chip select signals and read-write control signals of the main board CPLD are output to the four modules; type feedback signals of the four modules are output to the main board CPLD.

Description

technical field [0001] The invention relates to an ISA control master board supporting different functional modules. The master board can support modules such as AD, DA and DIO which can be flexibly configured, and belongs to the field of industrial measurement and control systems. Background technique [0002] With the development of industrial control technology, people's demand for industrial control boards is also increasing. Industrial control boards are an important part of industrial measurement and control systems. In the traditional design of industrial control boards, most of them adopt integrated Design, according to the requirements of the function, use general discrete components and integrated circuits to design. Such a design has a low integration level to a certain extent and a large volume, which wastes precious industrial PC slot resources. In addition, the flexibility is relatively poor. Contents of the invention [0003] The purpose of the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 赵辉赵楠楠章国江
Owner 严格集团股份有限公司
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