Create a simple latch circuit
3.4 Configure the CPU
Getting started with S7-1200
36 Getting Started, 11/2009, A5E02486791-01
Configuring the properties for the CPU
You use the properties to configure the operating parameters for the CPU. For example,
the default setting for startup after a power cycle is to have the CPU go to STOP mode.
For this exercise, change the startup property:
1. Select the CPU to display the properties in the inspector window.
2. In the inspector window, select the "Properties" tab and select "Startup" to display the
options for the startup mode of the CPU.
3. Select "Warm restart - RUN".
You have configured the CPU to always perform a warm restart and go to RUN mode
following a power cycle.
As you noticed when you uploaded the CPU configuration, the CPU does not have a pre-
assigned IP address. You assign the IP address for each CPU.
1. Select the PROFINET port on the CPU to display properties for just the PROFINET
interface. (You can also select "PROFINET interface" in the "General" properties of the
CPU.)
2. Select "Ethernet addresses" in the inspector window.
The "IP protocol" section displays the default IP address created by STEP 7 Basic.
This example uses the default IP address. Based on the needs of your application and
installation, you might need to configure a specific network address for the CPU. Refer to
the system manual for more information, and consult your local network specialist.
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