A current-type analog output module and its control method

An output module and output control technology, applied in the direction of measuring electrical variables, measuring devices, and using digital measurement technology for measurement, etc., can solve problems such as insufficient safety, no solution or backup plan, and products that cannot continue to be used. Effects of fault tolerance, improved safety and availability

Active Publication Date: 2022-04-26
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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  • A current-type analog output module and its control method
  • A current-type analog output module and its control method
  • A current-type analog output module and its control method

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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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Abstract

The application discloses a current-type analog output module and its control method, which is suitable for a current-type analog output module including multiple output channels connected in parallel with output terminals and a current detection circuit. The current detection circuit is coupled to multiple output channels. The combined circuit after the channels are paralleled is used to detect the output current in the combined circuit; the control method includes: obtaining the current detection value sent by the current detection circuit; judging whether there is a current detection value according to the current detection value and the target current output value of the main output channel fault, the main output channel is currently the only output channel in working state; if there is a fault, the main output channel will be updated to the backup output channel and closed, and one of the remaining output channels will be updated as the main output channel and start working . The application can not only detect faults in time, but also can select a backup output channel to replace the current main output channel to continue current output, realize fault tolerance, and effectively improve product safety and usability.

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 Patents(China)
IPC IPC(8): G01R19/25G01R35/00
CPCG01R19/25G01R35/00
Inventor 王轩王力
Owner HANGZHOU HOLLYSYS AUTOMATION
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