Siemens S5-135U/155U System Manual page 357

Connection of Front Strip
Process Signal
Lines
LED
F+
1
F–
2
1N
1N
4
1I0.0
1L
g
6
1I0.1
8 g
1I0.2
10 g
1I0.3
g
12
1I0.4
g
14
1I0.5
g
16
1I0.6
18 g
1I0.7
g
20
2N
2N
25
2L
2I1.0
g
27
2I1.1
29 g
2I1.2
31 g
2I1.3
g
33
2I1.4
g
35
2I1.5
37 g
2I1.6
39 g
2I1.7
g
41
g = Green LED (status indicator)
F+/F- = Enable input (jumper in front connector)
1)
Changeover of enable mode with jumper X20:
Jumper inserted = Enable input active (factory setting)
Jumper open = Enable input inactive.
System Manual
C79000-G8576-C199-06
Block Diagram of
Module Inputs
Pin
+5V
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Shield
Digital Input/Output Modules
Example of connection designation for
an input:
(1) I 0.4
x20
1)
Input 4 (4th bit);
0 to 7 possible
Address of input byte
(byte 0);
0 to 255 possible
I = Input
1st group (not speci-
fied in the address)
8-45