Siemens SIMATIC S7-200 - Contact Examples; Examples of Boolean Contact Instructions for Simatic LAD, STL, and FBD

SIMATIC Instructions
9-5
S7-200 Programmable Controller System Manual
A5E00066097-02
Contact Examples
NETWORK 1
LD I0.0
A I0.1
= Q0.0
NETWORK 2
LD I0.0
NOT
= Q0.1
NETWORK 3
LD I0.1
ED
= Q0.2
Network 1
Q0.0
LAD STL
I0.0 I0.1
Network 2
Q0.1I0.0
NOT
Network 3
Q0.2I0.1
N
Timing Diagram
I0.0
I0.1
Q0.0
Q0.1
Q0.2
On for one scan
FBD
Network 1
Network 2
Network 3
AND
Q0.0
I0.1
I0.0
=
I0.0
Q0.2
N
I0.1
Q0.1
Figure 9-1 Examples of Boolean Contact Instructions for SIMATIC LAD, STL, and FBD