Siemens SIMATIC S5-100U System Manual page 180

STEP 5 Operations
On-Delay
Example:
Output Q 1.0 is set 9 s after input I 0.0 and remains set as long as the input carries signal "1".
Timing Diagram
Signal states
1
0
1
0
9
STL
A I 0.0
L KT 900.0
SD T 3
I 0.0
NOP 0
KT 900.0
NOP 0
NOP 0
A T 3
= Q 1.0
8-22
I 0.0
Q 1.0
Time in s
9
CSF
T 3
T 0
TV BI
DE
R Q Q 1.0
Circuit Diagram
I 0.0
T 3
Q 1.0
LAD
T 3
I 0.0
T 0
KT 900.0 TV BI
DE
R Q
Q 1.0
EWA 4NEB 812 6120-02b
S5-100U