Siemens SIMATIC S7-400 Reference Manual page 113

Connection and circuit diagram for SM 421; DI 16 x UC 24/60 V
Process
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Figure 4-6
Technical specifications for SM 421; DI 16 x UC 24/60 V
Dimensions W x H x D (mm)
Weight
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
4.10 Digital input module SM 421; DI 16 x UC 24/60 V (6ES7421-7DH00-0AB0)
1
Front connector jumper
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3
4
5
6
7
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15
16
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Connection and circuit diagram for SM 421; DI 16 x UC 24/60 V
INTF
EXTF
Input
0
Adaptation
Diagnostics
1 N
Input
1
Adaptation
Diagnostics
2 N
Input
2
Adaptation
Diagnostics
3 N
Input
3
Adaptation
Diagnostics
4 N
Input
4
Adaptation
Diagnostics
5 N
Input
5
Adaptation
Diagnostics
6 N
Input
6
Adaptation
Diagnostics
7 N
Input
7
Adaptation
Diagnostics
8 N
Input
0
Adaptation
Diagnostics
9 N
Input
1
Adaptation
Diagnostics
10 N
Input
2
Adaptation
Diagnostics
11 N
Input
3
Adaptation
Diagnostics
12 N
Input
4
Adaptation
Diagnostics
13 N
Input
5
Adaptation
Diagnostics
14 N
Input
6
Adaptation
Diagnostics
15 N
Input
7
Adaptation
Diagnostics
16 N
Dimensions and weight
25 x 290 x 210
ca. 600 g
Module-specific data
Digital modules
Module
113