Delta DVP-SS2 - 2.11 C (Counter)

2. Programming Concepts
2-31
2.11 C (Counter)
Counters will increment their present count value when input signals are triggered from OFFON.
16 bits
counters
32 bits counters
Type
General
General
High speed
Counters C0~C199 C200~C231(C232)
C232(C233)~C242,
C245~C254
C243, C244
Count
direction
Count up Count up/down Count up
Range
0~32,767
-2,147,483,648~+2,147,483,647
0~2,147,483,647
Preset
value
register
Constant K or
data register
D (Word)
Constant K or data register D (Dword)
Output
operation
Counter will
stop when
preset value
reached
Counter will keep on counting when preset
value reached. The count value will become
-2,147,483,648 if one more count is ad
ded
t
o +2,147,483,647
Counter will keep on
counting when preset
value is
reached. The
count value will
become 0 if one more
count is added to
+2,147,483,647
Output
contact
function
Ouptut Coil
will be ON
when counter
reaches
preset value.
Output coil is ON when counter reaches or
is above preset value.
Output coil is OFF when counter is below
preset value.
Output coil is ON
when counter
reaches or is above
preset value
High speed
conparison
-
Associated devices
are activated
immediately when
preset value is
reached, i.e.
independant of scan
time.
-
Reset
action
The present value will reset to 0 when RST instruction is executed, output coil will
be OFF.
Example:
LD
X0
C0
Y0
X1
C0 K5CNT
X0
C0RST
RST
C0
LD
X1
CNT
C0 K5
LD
C0
OUT
Y0