Siemens Simatic S5-101U - Scanning for 0 Signal Status

OR before AND logic
A "1" signal appears at output Q 2.0
when both OR gates have "1" signals
at their outputs.
Original
A "0" signal appears at output Q 2.0
when at least one of the OR gates
has a
"0" signal at this output.
Scanning for "0" signal status
STEP 5 representation
A "1" signal appears at output
Q 2.6 only when input I 1.5 has
a
"1" signal and input I 1.6 a
"0" signal.
Control system
flowchart
Statement Ladder
Original
11.5 11.6
Q 2.0
list
diagram
STEP
5 representation
Control system
flowchart
11.5 a
11.6 aQ2.0
Statement
list
A 11.5
AN1 1.6
= Q2.g
Ladder
diagram
11.6