1. When X0.0=ON, the instruction RST will be executed and the current value of C0 will be reset to zero and
the output contact of the counter C0 will be FF.
2. When X0.1 is from OFF to ON, the value of the counter increases by one increment.
3. When the value of the counter C0 reached the setting value 5, the contact of the counter C0 will be ON
(the current value of C0 = the setting value = 5). After that the trigger from X0.1 will not be accepted by
C0 and the current value of C0 will stay at the value 5.
X0.0
X0.1
Y0.0,C0
C0 (PV)
0
1
2
3
4
5
(SV)
0
5.2.11 32-bit Counters (HC)
Characteristics of the 32-bit counter
Item 32-bit counter
Type Up/down counter Up counter High-speed counter
Number HC0–HC63 HC64–HC199 HC200–HC255
Direction Counting up/down Counting up Counting up/down
Setting value -2,147,483,648 to +2,147,483,647
Specification of the
setting value
The setting value can be either the constant or the value occupying two data
registers (32-bit).
Change of the current
value
The counter keeps counting even after the value of the counter matches the setting
value.
Output contact
The contact is ON when the value of the addition counter matches the setting value.
The contact is reset to OFF when the value of the subtraction counter matches the
setting value.
Reset
When the RST instruction is executed, the current value is cleared to zero, and the
contact is reset to OFF.
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