α
2 Simple Application Controllers
Function Blocks 6
6 - 26
2 ) Counter Operation of input pin U, input pin D, input C, input pin P, current value and output
Setup of the Up/Down Counter Function Block directly from the
α
2
Series Controller
1 ) Allocate the input pin to be used for the function block.
2 ) Press the “OK” key with the cursor in the function block. The function block edit screen is
displayed as shown.
3 ) Press the “OK” Key and enter the Up/Down counter function block settings using the “+, -,
and ” keys. The Direct Set of the count s ettings can be entered.
4 ) Press the “OK” Key and an Analog In function block value can be entered.
5 ) Press the “OK” key and using the “ESC” key return to the function block edit screen.
Input pin U
Input pin D
Current value of
up-down counter
0
1
2
-3
-2
-4
-5
Set value (-4)
Output
ON
OFF
Input pin C
Input pin P
1
2
0
-4
-6
-7
-8
-4
-5
0
B 0 0 1 : UD
C h a n g e N o
D e l e t e
F B
S e t u p
F B
D i r e
B 0 0 1 : UD
N =
0
n =
0
c t S e t
D i r e
B 0 0 1 : UD
c t S e t
A n a l o g
I n
F B V a l u e
