LOGO! Manual
A5E00067781 01
34
You convert the circuit to blocks. To do this, go through the
circuit from the output to the input:
Step1: At output Q1 there is a series connection of the nor-
mally open contact S3 with another circuit component. The
series connection corresponds to an AND block:
I3
x
Q1
&
Step 2: S1 and S2 are connected in parallel. The parallel
connection corresponds to an OR block:
I3
x
Q1
&
1
I1
I2
x
You have now provided a complete description of the circuit
for LOGO!. You now need to connect the inputs and out-
puts to LOGO!.
Wiring
Connect switches S1 to S3 to the screw connectors of
LOGO!:
Connect S1 to connector I1 on LOGO!
Connect S2 to connector I2 on LOGO!
Connect S3 to connector I3 on LOGO!
Only 2 inputs of the OR block are used so the third input
must be marked as unused. This is indicated by the x next
to it.
Likewise, only 2 inputs of the AND block are used. The
third input is therefore also marked as ’unused’ by an x
next to it.
The output of the AND block controls the relay at output
Q1. Consumer E1 is connected at output Q1.
Pro
rammin
LOGO!
To Next Page
Loading...
Need help?
General
