Siemens S5-155U System Manual page 334

Specification Sheets for the Modules
Connection
Front Strip
of Process
Signal Lines
LED Pin
L+ F+
1
L- F-
2
L+
3
1I0.0
L+
g
4
1I0.1
g
5
1I0.2
g
6
1I0.3
g
7
1I0.4
g
8
1I0.5
g
9
1I0.6
g
10
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
L-
21
22
23
24
1I2.0
g
25
1I2.1
26 g
1I2.2
g
27
1I2.3
g
28
1I2.4
g
29
1I2.5
g
30
1I2.6
g
31
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
g
41
L-
42
3)
8 - 36
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
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.
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)
C79000-B8576-C199-03
System Manual