Siemens SIMATIC S7-200 - Page 252

SIMATIC Instructions
9-64
S7-200 Programmable Controller System Manual
A5E00066097-02
FBD
Network 1
SM0.1
Q0.1
Network 2
1
M0.0
MAIN OB1
SBR1
EN
SUBROUTINE 0
IN16#DB
MOV_B
OUT
EN
SM0.0
IN+10000
MOV_W
OUT
EN
IN+1000
MOV_W
OUT
EN
PLS
EN
Network 1
Q0.x1 IN OUT
EN
16#DA
MOV_B
ENO
ENO
ENO ENO ENO
R
AND
SM0.0
N
SBR1
EN
AND
SM0.0
P
SUBROUTINE 1
+5000 SMW80
SM0.0
PLS
EN
Q0.X1IN
MOV_W
OUT
EN ENO ENO
Network 61
10% duty cycle
Timing Diagram
Q0.1
10% duty cycle 50% duty cycle
50% duty cycle
(cycle time = 10,000 ms)
Subroutine 1
executed here
SMW80
SMB77 SMW80
SMB77
Figure 9-21 Example of High-Speed Output Using Pulse Width Modulation (continued)