Connectors; Connectors And Blocks Connectors - Siemens LOGO! Series Manual

3.3 Connectors

LOGO! has inputs and outputs:
Each input is identified by the letter I with a number. When you look at
LOGO! from the front, you see the connectors for the inputs at the top
right.
Each output is identified by the letter Q with a number. You will see the
connectors of the outputs at the bottom.
Connections when programming
When you program LOGO!, you connect connectors with blocks. To do
this, you simply select the connection you require from the Co menu (Co
stands for connector).
I1
 1
I2
x
LOGO! recognizes the following connectors:
S
Inputs: I1, I2, I3, I4, I5, I6
S
Outputs: Q1, Q2, Q3, Q4
S
lo: '0' (OFF)
S
hi: '1', (On)
S
x: Not connected
LOGO! manual
EWA 4NEB 712 6006-02
I1
L1 N
SIEMENS
Q1 Q2
Outputs
Inputs I1 and I2 are connected to the OR
block here. The last input of the block is not
used and is therefore marked with an x.
Q
Programming LOGO!
Inputs
I2 I3 I4 I5
I6
Q3 Q4
15