Interface Submodules
13-25
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Figures 13-7 and 13-8 show the circuit block diagrams and the terminal connectiondiagrams for wiring the digital inputs and digital outputs.
Terminal connection diagram
Circuit block
diagram
Internal
data bus
Minternal
13 5M
12 5L+
11 DO0
10 DO1
9 DO2
8 DO3
76M
6 6L+
5 DO4
4 DO5
3 DO6
2 DO7
1NC
DI7 25
DI6 24
4M 23
DI5 22
DI4 21
3M 20
DI3 19
DI2 18
2M 17
DI1 16
DI0 15
1M 14
Figure 13-7 Circuit Block Diagram and Terminal Connection Diagram for Wiring the Digital Inputs
Terminal connection diagram Circuit block diagram
L+
M
Minternal
Internal
data bus
13 5M
12 5L+
11 DO0
10 DO1
9 DO2
8 DO3
76M
6 6L+
5 DO4
4 DO5
3 DO6
2 DO7
1NC
DI7 25
DI6 24
4M 23
DI5 22
DI4 21
3M 20
DI3 19
DI2 18
2M 17
DI1 16
DI0 15
1M 14
Figure 13-8 Circuit Block Diagram and Terminal Connection Diagram for Wiring the Digital Outputs