Multiplex collecting port circuit, controller, analog quantity input collection method and system

A technology of port circuit and analog quantity, which is applied in the direction of control/regulation system, regulation of electrical variables, instruments, etc., and can solve problems such as wrong measurement, poor compatibility, and operation errors

Pending Publication Date: 2018-05-04
JIANGSU XCMG STATE KEY LAB TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The solution (1) in the prior art has poor compatibility, which will affect the selection of the controller and cannot satisfy the control input of the complex system; the solution (2) in the

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  • Multiplex collecting port circuit, controller, analog quantity input collection method and system
  • Multiplex collecting port circuit, controller, analog quantity input collection method and system
  • Multiplex collecting port circuit, controller, analog quantity input collection method and system

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Embodiment Construction

[0086] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0087] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0088] At the same time, it should be understood that, for the convenience of d...

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Abstract

The invention discloses a multiplex collecting port circuit, a controller, an analog quantity input collection method and a system. One end of the multiplex collecting port circuit is connected with an input signal interface; the other end of the multiplex collecting port circuit is connected with the controller; the multiplex collecting port circuit collects one kind of various types of analog quantity input signals corresponding to control signals according to the control signals of the controller. Under the condition of not changing the circuit connection, the same external interface can beused for performing signal collection on an analog quantity sensors of different types. The universality of the controller is improved; the diversified use requirements in the field can be met.

Description

technical field [0001] The invention relates to the field of detection and control of engineering machinery, in particular to a multiplexing acquisition port circuit, a controller, an analog quantity input acquisition method and a system. Background technique [0002] With the rapid development of modern electronic technology, more sensor monitoring units need to be added for data monitoring. [0003] Commonly used analog sensor types include 0-5V voltage type, 4-20mA current type and resistance type. In different control systems, these three types of sensors are almost used at the same time, and the corresponding usage quantities will also vary. The difference is that the analog input of the controller in the prior art scheme adopts two processing schemes: (1) single input mode: only supports one kind of sensor input; (2) manual switching: internally through manual jumper conversion processing , to select different analog sensor requirements. [0004] The solution (1) in ...

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 张霞宋文生王美娜
Owner JIANGSU XCMG STATE KEY LAB TECH CO LTD
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