STEP 5 Operations
Pulse
Example:
Output Q 4.0 is set when the signal state at input I 3.0 changes from "0" to "1".
However, the output should not remain set longer than 5 sec.
Signal states
1
0
1
0
5
STL
A
I
3.0
L
KT
50.1
SP
T
1
NOP 0
*
NOP 0
*
NOP 0
*
A
T
1
=
Q
4.0
*
NOP 0 is required if the program is to be represented in LAD or CSF in the PG 635, PG 670, PG 675, PG 685, PG 695 or
PG 750 programmers. NOP 0 operations are automatically assigned when programming in LAD and CSF.
Note
The time tolerance is calculated as the sum of the time base and the maximum interval
between the SYNC synchronization block calls.
3-20
Timing Diagram
CSF
T 1
1
I 3.0
KT 50.1
TV
BI
DE
R
Q
I 3.0
T 1
Q 4.0
Time in sec.
T 1: Time relay with transition-
I 3.0
KT 50.1
Q 4.0
S5-115F Manual
Circuit Diagram
I 3.0
Q 4.0
sensing NO contact
LAD
T 1
1
TV
BI
DE
Q 4.0
R
Q
EWA 4NEB 811 6149-02