Siemens Simatic S7-200 System Manual page 80

Getting Started with a Sample Program
The ladder cursor is now positioned to the right of the normally closed "High_Level" input.
Refer to Figure 4-11 and follow these steps to complete the first network:
1. Click the coil button ("F6") and move the mouse cursor inside the ladder cursor and click.
A coil appears with the name "Pump_1" highlighted above it. (Each coil that you enter is
given the default address of Q0.0, which in this case has been defined as Pump_1 in the
symbol table.)
2. Press
ENTER
3. Use the mouse or press the left arrow key to move the cursor back to the first element of
the current network.
4. Click the vertical line button ("F7") to draw a vertical line between the first and second
contacts.
5. Click the normally open contact button ("F4") on the toolbar, and press
with the name "Start_1" appears.
6. Type Pump_1 and press
The first network is now complete.
Output Coils
Network 1
"Start_1"
Pump_1
Figure 4-11
4-12
to confirm the coil and its symbol name.
.
ENTER
Output
F2
Fill the tank with Paint Ingredient 1 and monitor tank.
"Stop_1" "High_Level"
Type symbol
name here.
Completing the First Network
ENTER
F3
F4 F5 F6
"Pump_1"
Coil button
S7-200 Programmable Controller System Manual
C79000-G7076-C230-02
. A contact
F7 F8 F10
Vertical line
button