Current type analog quantity output module and control method thereof

An output module and output control technology, applied in the measurement of electrical variables, measurement devices, measurement using digital measurement technology, etc., can solve the problems of insufficient safety, no solution or backup solution, and the product cannot continue to be used, etc. Safety and availability, the effect of achieving fault tolerance

Active Publication Date: 2020-02-11
HANGZHOU HOLLYSYS AUTOMATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current output modules in the prior art are generally not safe enough, and there is no corresponding solution or backup plan after the current output channel fails, so that the product cannot continue to be used on site

Method used

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  • Current type analog quantity output module and control method thereof
  • Current type analog quantity output module and control method thereof
  • Current type analog quantity output module and control method thereof

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Embodiment Construction

[0040] The core of the present application is to provide a current-type analog output module and a control method thereof, so as to improve the fault tolerance capability of the product, thereby effectively improving the safety and usability of the product.

[0041] In order to describe the technical solutions in the embodiments of the present application more clearly and completely, the technical solutions in the embodiments of the present application will be introduced below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0042] The current output module is a module that can output a corresponding large or small current according to t...

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PUM

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Abstract

The application discloses a current type analog quantity output module and a control method thereof, which are suitable for a current type analog quantity output module comprising a plurality of output channels with output terminals connected in parallel and a current detection circuit. The current detection circuit is coupled to a combined circuit formed after parallel connection of the pluralityof output channels and is sued for detecting the output current in the combined circuit. In addition, the control method includes: acquiring current detection value sent by the current detection circuit; determining whether a fault exists or not according to a current detection value and a target current output value of a main output channel being current unique one in a working state; and if so,updating the main output channel to be a standby output channel and closing the standby output channel, and selecting one from the rest of output channels to update the selected one to be a main output channel and starting the main output channel to work. Therefore, a fault problem can be detected in time and the standby output channel can be selected to replace the current main output channel tooutput currents continuously, thereby realizing fault tolerance and thus improving the safety and usability of the product effectively.

Description

technical field [0001] The present application relates to the technical field of power detection, in particular to a current-type analog output module and a control method thereof. Background technique [0002] In the design and application of power electronics, the current-type output module is a module that can output a corresponding large or small current according to the set value, and has an important application in the safety instrument system. However, the current output modules in the prior art are generally not safe enough, and there is no corresponding solution or backup plan after the failure of the current output channel, so that the product cannot continue to be used on site. In view of this, providing a solution to the above-mentioned technical problems has become an urgent concern for those skilled in the art. Contents of the invention [0003] The purpose of the present application is to provide a current-type analog output module and a control method ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R35/00
CPCG01R19/25G01R35/00
Inventor 王轩王力
Owner HANGZHOU HOLLYSYS AUTOMATION
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