LSIS XEC-DR32H - Page 130

Chapter 8 Built-in High-speed Counter Function
(2) Counter mode
2 types of count (Linear counter, Ring counter) can be selected for the applicable use based on
functions.
▪ Counter mode is saved at the following special K area.
Mode
Area per each channel (word)
Ref.
Ch.0
Ch.1
Ch.2
Ch.3
Ch.4
Ch.5
Ch.6
Ch.7
Counter
mode
%KW300 %KW330
%KW360 %KW390
%KW2220
%KW2250
%KW2280
%KW2310
0 : linear
1 : ring
(a) Linear counter
■ Linear Count range: -2,147,483,648 ~ 2,147,483,647
■ If count value reaches the maximum value while increased, Carry will occur, and if count
value reaches the minimum value while decreased, Borrow will occur.
■ If Carry occurs, count stops and increasing is not available but decreasing is available.
■ If Borrow occurs, count stops and decreasing is not available but increasing is available.
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