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Input circuit in high speed counter module in PLC

A technology of high-speed counters and input circuits, which is applied to the counters of additional devices, counting mechanisms/items, and program control in sequence/logic controllers. The effect of processing speed improvement

Inactive Publication Date: 2013-06-05
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, in the case where the interrupt period is equal to or less than the interrupt program processing time, the MPU 200 has a disadvantage in performing only high-speed counting, or performing erroneous operations due to ignoring input pulses

Method used

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  • Input circuit in high speed counter module in PLC
  • Input circuit in high speed counter module in PLC
  • Input circuit in high speed counter module in PLC

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Embodiment Construction

[0056] In describing the present disclosure, detailed descriptions of constructions and processes known in the art may be omitted to avoid obscuring understanding of the present invention by those skilled in the art with unnecessary details about such known constructions and functions. Therefore, the meanings of specific terms and words used in the specification and claims should not be limited to literal or commonly used meanings, but should be interpreted or different according to user or operator's intention and customary usage. Therefore, definitions of specific terms and vocabulary should be based on the contents of the entire specification.

[0057] The suffixes 'module', 'unit', 'device' and 'part' may be used for elements to facilitate the present disclosure. Significant meanings or functions may not be given to the suffixes themselves, and it should be understood that "module", "unit", and "component" may be used together or interchangeably. That is, the terms "-er",...

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Abstract

An input circuit in high speed counter module for PLC is provided, the input circuit being configured such that various types of pulse signals are changed to a single type of pulse signal and transmitted to an MPU, whereby the type of input pulse is checked or an operation of checking addition / deduction is omitted to increase an interrupt process speed.

Description

technical field [0001] The present disclosure relates to an input circuit, and in particular to an input circuit configured to be used in a high-speed counter module, which is one of the expansion modules of a programmable logic controller (PLC). Background technique [0002] The information disclosed in this Background section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgment or any form of suggestion that this information constitutes known knowledge to a person skilled in the art existing technology. [0003] Generally, the high-speed counter module of the programmable logic controller (PLC) is used to count the fast pulse signal of the pulse generator or the encoder, and it is used to perform the expansion module of the PLC necessary to understand the operation of the motor rotation in the industrial place to define. [0004] A high-speed counter module uses high-speed pulses to improve the ...

Claims

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Application Information

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IPC IPC(8): G05B19/05
CPCG05B19/0423H03K21/026G05B19/04G05B19/042G05B19/05G06M3/00H03K21/02
Inventor 金锡渊
Owner LSIS CO LTD