Siemens SIMATIC Manual page 21

Layout of the example
Power supply
ON/OFF
Clamp for
strain relief
Overview of the layout of the example
Functionality of the Example
Output Q124.0 can only be switched (i.e. the Q124.0 diode lights up on the DO), if
switches I124.1 and I124.2 are pressed.
Step 1: Installation
Installation sequence: from left to right: power module 307 – CPU 313C.
The picture shows the overview of the entire installation.
Automation System S7-300, Getting Started – CPU31xC:Commissioning:
A5E00105538-02
Switch for setting Mode selector switch
system voltage
I124.1
SF
BF
DC5V
FRCE
I124.2
RUN
STOP
RUN
STOP
MRES
+
24 Volt
Power connector
Figure
1. Put the rail in position and fasten (screw size: M6)
1.
2. If you fasten the rail to a grounded metal plate or a
3. 3.
3. Connect the rail to the protective conductor. There is
0 0 0
1 1 1
Q124.0
2 2 2
3 3 3
4 4 4
5 5 5
6 6 6
7 7 7
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
Switches
Installing and Grounding the Rail
so that there is at least 40 mm of space above and
below the rail.
grounded device support, make sure there is a low-
resistance connection between the rail and the ba-
se.
an M6 protective conductor screw on the rail for this
purpose.
Minimum cross-section of the cable to the protective
2
conductor: 10 mm .
Rail Programming
device with
STEP 7 software
Programming device cable
3