Siemens Simatic S7-300 - Page 56

6-12
Primer: S7-300 Programmable Controller, Quick Start
C79000-G7076-C500-01
Enter the LAD elements listed below for the TLIGHT sample program
network by network in your FC1. Proceed as described in the table. You have
already defined the required addresses in Chapter 2 of the Primer.
Network 1: Detecting green request for pedestrians
I0.0
M0.0
I0.1
M0.0
T6
T5
Network 2: Green phase for vehicles
M0.0 Q0.7
Network 3: Timer start for yellow phase for vehicles
M0.0
S5T#3S
T2
??.?
??.?
S_ODT
S
TV
R BCD
Q
BI
Network 4: Yellow phase for vehicles
M0.0 Q0.6
T4
T2
Network 5: Red phase for vehicles
M0.0 Q0.5T2
Network 6: Timer start for green phase for pedestrians
Q0.5
S5T#10S
T3
??.?
??.?
S_ODT
S
TV
R BCD
Q
BI
Network 7: Green phase for pedestrians
Q0.5 Q0.1T3
LAD Elements for
FC1
Programming Logic Blocks with STEP 7