Siemens SIMATIC ET 200AL System Manual page 1010

Result of the hardware detection
If the hardware detection is successful, STEP 7 inserts the IO device with all the modules
and submodules into the project.
An IO device configured via hardware detection responds as follows:
● Modules configured through the "Hardware detection" are configured as if they have been
inserted from the catalog.
● MAC address: STEP 7 imports the MAC address of the detected IO device into the
project.
● IP settings:
– If the detected IO device already has an IP address, STEP 7 imports the IP address
– If the detected IO device does not have an IP address, STEP 7 automatically assigns
PROFINET device name:
– If the detected IO device already has a PROFINET device name, STEP 7 imports the
– If the detected IO device does not have a PROFINET device name, STEP 7
● IO devices configured through "Hardware detection" have neither an IP subnet nor an IO
controller assigned.
PROFINET with STEP 7 V15
Function Manual, 12/2017, A5E03444486-AH
into the project.
an IP address in the project.
PROFINET device name into the project.
automatically assigns a PROFINET device name in the project.
Parameter assignment/addressing
3.3 Configuring an IO device through hardware detection
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