Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER Instrukcja Użytkownika Pobierz pdf (Strona 18)

1–6 Overview of the Incremental Encoder Module

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Count Pulses from Incremental Encoders

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#)+#'& ,('-& #* +)%#& . +" ("* # )& ' +" #&(,+ *#!&$*  & 

Counter Mode = 1, 2 or 3

Counter Register

Logic

A

B

('-&

Up/Down Counting using pulses at the inputs of A and B

12321

Input A

Input B

Counter Value

Counting Up Counting Down

Example 1 - Counter Mode = 1 (x1)

0

13542

Input A

Input B

Counter Value

Counting Up Counting Down

Example 2 - Counter Mode = 2 (x2)

02 4 3 1

15984

Input A

Input B

Counter Value

Counting Up Counting Down

Example 3 - Counter Mode = 3 (x4)

03 7 6 248 5 12 6 7 3

Pulse Counting Mode (001, 010. 011)

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 87 88

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