Siemens S5-135U/155U System Manual page 345

Connection of Front Strip
Process Signal
Lines
LED Pin
F+
L+
1
L– F–
2
L+ 4)
3
L+
1I0.0
4
g
1I0.1
5
g
1I0.2
6
g
1I0.3
7
g
1I0.4
8
g
1I0.5
9
g
1I0.6
10
g
1I0.7
g
11
12
1I1.0
g
13
1I1.1
g
14
1I1.2
g
15
1I1.3
g
16
1I1.4
g
17
1I1.5
g
18
1I1.6
g
19
1I1.7
20
g
21
L–
22
23
24
1I2.0
g
25
1I2.1
g
26
1I2.2
g
27
1I2.3
g
28
1I2.4
29 g
1I2.5
30 g
1I2.6
31 g
1I2.7
g
32
33
1I3.0
g
34
1I3.1
g
35
1I3.2
g
36
1I3.3
g
37
1I3.4
g
38
1I3.5
g
39
1I3.6
g
40
1I3.7
41 g
L–
42
3)
g = Green LED (status indicator)
F+/F- = Enable input
1)
Changeover of enable mode with jumper X20:
Jumper inserted = Enable input active (factory setting)
Jumper open = Enable input inactive.
2)
The terminal is not connected internally. Even when this terminal is connected to input voltages, the clearances in air and
leakage paths remain adequate to UL, CSA and VDE.
3)
By connecting L- to pin 42, a leading and trailing connection to ground is established on the module when it is plugged in
and removed.
4)
L+ to terminal 3 is not required for -4UA14.
System Manual
C79000-G8576-C199-06
Block Diagram of
Module Inputs
x20
t
1)
L+
t
t
2)
t
t
2) L–
2)
2)
t
t
2)
t
t
L–
Shield
Digital Input/Output Modules
Example of connection designation
for an input:
(1) I 3.5
Input 5 (5th bit);
0 to 7 possible
Address of input byte
(3rd byte);
0 to 255 possible
I = Input
1st group (not specified
in the address)
8-33