LG Electronics 120S Usage of Various Functions Pulse Catch Function, Minimum input pulse width

Chapter 7 Usage of Various Functions

7.1.2. Pulse Catch Function

In the main unit, 4(economic type) or 8(standard type) points of pulse catch input contact points are internalized. Through using this contact point, short pulse signal short can be taken which can not be executed by general digital input.

1) Usage

When narrow width of pulse signal is input, a trouble occurs which can not be detected by general digital input, so the operation does not perform as user's intention. But in this case through pulse catch function even narrow interval of pulse signal as 10 ㎲ min. can be detected.

2) Minimum input pulse width.

Type	Standard	Economic
10 ㎲	2 points (P0, P1)	None
50 ㎲	6 points (P2 ~ P7)	4 points (P0 ~ P3)

3) Operating Explanation

input signal

input image data

10 ㎲

scan 1 scan 2 scan 3

step	executing contents
scan1	CPU senses input when pulse signal, min. 10 ㎲, is input, then saves the status.
scan2	used to turn on the region of input image
scan3	used to turn off the region of input image

4)using method

(1)click twice the basic parameter on the project window of KGLMIN

(2)Select no. to use for pulse catch input of the basic parameter window. For details of KGLWIN refers to the manual.

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