Digital quantity output control device and control method

By introducing a communication control analysis module and an output control module into the digital output device, the continuous monitoring and control of the digital output signal is achieved, and the problem of insufficient safety and reliability of the digital output device in the prior art is solved, which significantly improves the safety and reliability of the output.

CN119645000APending Publication Date: 2025-03-18BEIJING HOLLYSYS
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Patent Information

Application Number
CN202411846046.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The existing digital output devices have shortcomings in terms of safety and reliability, especially in scenarios where the safety requirements for digital output are high, and they still need to be improved.

Method used

A digital output control device and a control method are provided, including a communication control analysis module and an output control module. The communication control analysis module analyzes the data packet input from the main controller. The output control module starts outputting the digital signal when the preset jump edge signal is detected, and monitors the persistence of the signal through timing. If the preset signal is not detected, the output stops.

Benefits of technology

By continuously monitoring whether the preset signal input from the main controller is received within the preset time, determining whether the main controller is abnormal, and stopping the output of the digital signal when an abnormality is detected, the reliability and safety of the output are significantly improved.

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Abstract

The invention discloses a digital quantity output control device and a control method, and the device comprises a communication control analysis module which is used for analyzing a data packet inputted from a main controller, and the data packet comprises digital output information; the output control module is used for starting to continuously output a digital signal and starting to time when detecting that the digital output information has a first preset jump edge signal for the first time; after each time of timing, if a first preset jump edge signal is detected within a first preset duration, keeping the output of the digital signal, and restarting timing; and if the first preset jump edge signal is still not detected beyond the first preset duration, stopping outputting the digital signal. According to the scheme, in the process that the device continuously outputs the digital signals, whether the main controller is abnormal or not is judged by continuously monitoring whether the preset signals input by the main controller can be received or not within the preset time, output of the digital signals is stopped when it is monitored that the main controller is abnormal, and the output reliability and safety are improved.
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