Analog Comparator for LOGO PLC

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HK Roni Academy

HK Roni Academy

Күн бұрын

An analog comparator is a function block in the programmable logic controller (PLC) that compares two analog inputs and outputs a Boolean result based on the relationship between the two inputs.
The analog comparator block typically has two inputs, a reference input and a comparison input, and one output. The output is set to "1" if the comparison input is greater than, less than, or equal to the reference input, depending on the programmed comparison condition.
Analog comparators are used in a variety of applications, such as control systems, data acquisition systems, and process control systems. They can be used to perform threshold detection, limit checking, and range monitoring, among other things.
In the Siemens Logo! PLC, for example, the analog comparator is represented by the FC 16 block, which is used to compare two analog inputs and generate a Boolean output based on the comparison result.
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@Goodvibessssssssss
@Goodvibessssssssss Жыл бұрын
I am using one of the Analog Inputs to check position of a door and determine if it is closed. If the door is above a certain analog threshold, then the door is closed. If the system needs to be recalibrated, the operator can push a pushbutton which will create a new setpoint for the door being closed. In principal this seems fairly basic but I am struggling to find a way in the Logo software for the recalibration aspect. I have put together some logic below which compares the analog input to an analog memory bit. However, I have been unable to find an instruction block so far that will allow the analog input (AI1) to pass into the analog memory if the pushbutton is on (I1).
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