Siemens S5-135U/155U - Manual (Page 458)

9-76
System Manual
C79000-G8576-C199-06
Voltage or current input
or connection of two-wire transducer Resistance thermometer
Block Diagram
of the Module Front Strip
Pin
Connection of
Process Signal
Lines
1
2
3
4
6
8
10
13
15
17
19
20
22
23
25
27
29
31
34
36
38
40
41
F+
L+
F–
Comp.–
Comp.+
MU
+
–
2)
Datenspeicher und S5–Busansteuerung
ADU
t
Range Card 1
5
Range Card 2
Range Card 3
Range
Card 4
6ES5 498–1AA51
7
9
11
14
16
18
26
28
30
32
35
37
39
CH.15
MU
+
–
2)
MU
+
–
2)
MU
+
–
2)
L–
L+
+
–
1)
+
–
1)
+
–
1)
+
–
1)
+
–
+
–
+
–
+
–
CH.0
+
–
1)
1)
1)
1)
1)
1)
+
–
1) –
+
1) –
+
I
trip
24 3)L+
1
2
3
4
6
8
10
13
15
17
19
20
22
23
25
27
29
31
34
36
38
40
41
42 42
F+
L+
L– L–
F–
Comp.–
Comp.+
Data Memory and S5 Bus Control
ADU
t
5
7
9
11
14
16
18
26
28
30
32
35
37
39
CH.7
CH.0
CH.6
CH.5
CH.4
CH.3
CH.2
CH.1
CH.0
CH.1
CH.2
CH.3
CH.4
CH.5
CH.6
CH.7
Measuring V
oltage
Inputs
Constant Power Supply
I
24 3) L+
0 Vgnd (L–)
Connection of
Process Signal
Lines
Front Strip
Pin
Block Diagram
of the Module
Range Card 1
Range Card 2
Range Card 3
Range Card 4
trip
0 Vgnd (L–)
Figure 9-25 Front Connector Assignments
Two-wire transducers can only be connected in the 500 mV mode.
Connect L- to the central ground point (reference potential).
1) Observe permissible potential difference between sensor and reference potential of modules
or between sensors.
2) Two-wire transducer
3) Only required to switch off the tripping current without broken wire detection;
(0 V at common ground point with L-).
Front Connector
Assignments
Analog Input/Output Modules