Method for limiting entry set status of controller

Abstract

The invention discloses a method for restricting a controller from entering a setting state, which is suitable for restricting a temperature controller using thermistor sampling to enter a setting state. It sets a short-circuit connection wire L between the access pins of the sensor connected to the controller. When it needs to enter the setting state, replace it with a short-circuit connection wire L at the specified thermistor access point or connect it in parallel with the thermistor. Then enter the specified setting state according to the specified operation mode to set. When the controller is working normally, due to the connection of the thermistor, the controller prohibits the operation of entering the setting state. When it is necessary to enter the setting state, replace the thermistor with a short wire to connect to the controller. When the controller detects that the thermistor is short-circuited, the controller allows to enter the setting state through the corresponding button operation. The beneficial effect of the present invention is that the method is simple and easy to operate, and the phenomenon of malfunction caused by the wrong setting of the end user is avoided.

Description

technical field [0001] The invention relates to a method for restricting a controller from entering a corresponding setting state, and is particularly suitable for a controller that uses a thermistor sensor to perform temperature sampling for setting and control. Background technique [0002] Traditional controllers mainly use different button methods to restrict access to the corresponding setting state, or use password instructions to restrict access. Because this kind of controller has few buttons or few display digits, the person who uses this kind of controller can crack it through accidental operation or multiple trial buttons, which leads to an unexpected event of entering the specified setting state occur. Or use the method of prohibiting all access to the setting state, which in turn leads to the disappearance of the function of entering the setting state to adjust the corresponding parameters. Contents of the invention [0003] The purpose of the present invent...

AI Technical Summary

Problems solved by technology

Because this kind of controller has few buttons or few display digits, the person who uses this kind of controller can crack it by accidental operation or multiple trial buttons, resulting in an unexpected event of entering the specified setting state occur

Either use the method of prohibiting all access to the setting state, which in turn leads to the disappearance of the function that wants to enter the setting state to adjust the corresponding parameters

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