Ct (Down Counter) - Panasonic FP7 Series Command Reference Manual

3.20 CT (Down Counter)

■
Ladder diagram
■
List of operands
Operand Description
n Counter number
S Counter set value
■
Devices that can be specified (indicated by ●)
Operan
d
W W
X Y
n
S ● ●
(Note 1) Only CS can be specified for CT instruction.
■
Outline of operation
● All counters are decremental preset counters.
● When the reset input rises from OFF to ON, the value in the set value area "CS" is preset to
the elapsed value area "CE."
● When the reset input is ON, the elapsed value is reset to 0.
● When the count input changes from OFF to ON, the counter decrements from the set value.
When the elapsed value becomes 0, output to the counter contact is generated.
WUME-FP7CPUPGR-12
16-Bit device:
W W W S D L
R L S D T D
● ● ● ●
32-Bit
device:
TS
C
TE
S
U W
WI IX
C
M O
(N
E
ote
1)
●

3.20 CT (Down Counter)

Real St
Integer numbe rin
r g
D
K Ｕ H SF " "
F
●
●
Index
modifie
r
●
●
3-53