7.2.2 Examples of Ring Counter Settings
Comparison match flag operation when counting up
Operates according to the settings of addition set pattern and addition reset pattern when the
current value matches the comparison data.
Lower limit
Comparison
data 0
Comparison
match 0 flag
Comparison
match 1 flag
Comparison
match 2 flag
Comparison
match 3 flag
0
500
+1,250
Comparison match flag operation when counting down
Operates according to the settings of subtraction set pattern and addition reset pattern when
the current value matches the comparison data.
Lower limit
Upper limit
Comparison
Comparison
match 0 flag
Comparison
match 1 flag
Comparison
match 2 flag
+10,000
Comparison
match 3 flag
0
+8,750
KEY POINTS
•
For the ring counter, comparison data is set for the area including the upper
and lower limits in which the count value is rolled over, and set patterns can
be set.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
Comparison
Comparison
Comparison
data 1
data 2
data 3
+2,500
+3,750
Comparison
Comparison
data 7
data 6
data 5
+7,500
+6,250
Comparison
Comparison
Comparison
data 4
data 5
+5,000
+6,250
+7,500
Comparison
Comparison
Comparison
data 4
data 3
data 2
+5,000
+3,750
+2,500
Lower limit
(Upper limit + 1)
Comparison
Comparison
data 6
data 7
data 0
+8,750
500
+1,250
Lower limit
Comparison
Comparison
data 1
data 0
+1,250
500
+8,750
Comparison
data 1
Comparison
data 7