Eaton ELC-PB - 2.12 C (Counter)

ELC Programming Manual
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2-44
2.12 C (Counter)
Counters will increment their present count value when the input signal transitions from OFFON.
Item 16 bits counters 32 bits counters
Type General General High speed
ELC-PB,
ELCB-PB
Counters
C0~C127 -
C235~C238, C241,
C242, C244, C246,
C247, C249, C251,
C252, C254
-
ELC-PC/PA
Counters
C0~C199 C200~C234
C235~C244, C246,
C247, C249, C251~,
C254
-
ELC-PH
Counters
C0~C199 C200~C234
C235~C247,
C249~C252, C254,
C255
ELC-PV
Counters
C0~C199 C200~C234
C235~C244,
C246~C249,
C251~C254
-
ELCM-PH/PA
Counters
C0~C199 C200~C231
C232~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
added to +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
Output 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
comparison
- -
Associated devices
are activated
immediately when
preset value is
reached
Reset action
The present value will reset to 0 when RST instruction is executed, output coil
will be OFF.
Update
method
During every
scan
During every
scan
Immediate – update is independent of
scan time.