Siemens CU240S DP-F - Page 266

Functions
8.14 Free function blocks
Control Units CU240S
8-70 Operating Instructions, 11/2006, A5E00766042B AA
No. Type Example
2 D-FlipFlops D-FlipFlop 1
1
P2834
SET (Q=1)
RESET (Q=0)
D
STORE
POWER ON
r2835
r2836
Q
Q
P2800 P2801[12]
Index0
Index1
Index2
Index3
SET RESET D STORE Q Q
10xx10
01xx01
11xxQ
n-1
Q
n-1
001 10
000 01
POWER-ON 0 1
3 RS-FlipFlops RS-FlipFlop 1
P2800 P2801[14]
SET
(Q=1)
RESET
(Q=0)
Q
Q
P2840
POWER ON
1
r2841
r2842
Index 0
Index 1
SET RESET Q Q
00Q
n-1
Q
n-1
0101
1010
11Q
n-1
Q
n-1
POWER-ON 0 1
4 Timer Timer 1
T
0
0T
TT
r2852
1
r2853
P284 9
0/10
1/11
2/12
3/13
I
n
Out
NOut
P2851(0)
P2850 (0.000)
P2800
P2802.0
Delay Time Mode
ON Delay
OFF Delay
ON/OFF Delay
Pulse Generator
Index0
T
2 ADD ADD 1
r2870
x1
x2
200 %
-200 %
P2800 P2802[4]
Result = x1 + x2
If:
x1 + x2 > 200%
→
x1 + x2 < -200%
→
Result = 200%
Result = -200%
Result
P286 9
x1 + x2
Index 0
Index 1