Siemens M7-400, S7-400 13.7.1 Pin Assignments and Terminal Connection Diagram

Interface Submodules
13-34 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
13.7.1 Pin Assignments and Terminal Connection Diagram
X1 Socket
There is a 25-pin sub D socket connector on the frontside of the submodule for
plugging in the connecting cable.
Figure 13-10 shows the assignments for the X1 socket and the terminal
connection diagram of the submodule.
V
Pinout diagram voltage measurement
M0-
MI1+
MV2+
M2-
M3-
MI3+
QI1
CH 0
CH 1
CH2
CH 3
CH 0
CH1
M
M1-
Pinout diagram voltage output
MV1+
M1- CH 1
MV3+
M3- CH 3
MI0+ CH 0
M0-
M2-
MI2+ CH 2
QV1
S1CH1
QV0
S0QI0
CH 0
RL
L +
RL
V
Pinout diagram current
measurement
2
4
6
8
10
11
13
15
16
17
18
19
20
21
22
23
24
12
9
M
Pinout diagram current output
RL
1L +
A
Ground bar
of the PLC
RL
A
Ground bar
of the PLC
2
4
6
8
10
11
13
15
16
17
18
19
20
21
22
23
24
12
9
1MV0+
13 M
12 S1
11 QV1
10 QV0
9S
0
8MV
3+
7NC
6MV
2+
5NC
4MV
1+
3NC
2MV
0+
1L+
L2+ 25
QI124
QI023
M3- 22
MI3+ 21
M2- 20
MI2+ 19
M1- 18
MI1+ 17
M0- 16
MI0+ 15
L1+ 14
Figure 13-10 X1 Socket Assignments (25-Pin Sub D Connector) and Terminal Connection Diagram of the
IF 961-AIO
Note
Use only shielded cables for connecting the inputs and outputs.