Siemens SIMATIC ET 200AL, System Manual

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Functions
5.10 Standard machine projects
PROFINET with STEP 7
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Function Manual, 05/2021, A5E03444486-AL
Result : The following settings are made by STEP 7:
• The device name of the IO controller (CPU) in the standard machine project is set to
"PROFINET device name is set directly at the device". The IO controller (CPU) has no
PROFINET device name initially.
• The IP protocol of the IO controller (CPU) is set to "IP address is set directly at the device".
The CPU has no IP address initially.
• The "Support device replacement without exchangeable medium" option is selected
automatically. This option enables automatic commissioning. A commissioning engineer
does not have to assign device names to the IO devices locally. The IO controller assigns
the device name and IP address to the IO devices based on the preset topology and other
settings during startup.
• The device name of the IO devices is set to "Generate PROFINET device name
automatically" (from the configured name of the IO device).
• The IP protocol of the IO devices is set to "IP address is set by the IO controller during
runtime". The IO devices have no IP address initially. If an IO device is not a typical
distributed I/O system (e.g., ET 200 systems), but rather another device such as an
HMI device, change the option to "IP address is set directly at the device"; see below.
• The device number for the IO devices is automatically assigned and is used locally for
making the IP address unique.
The option "Permit overwriting of PROFINET device name" must be selected (CPU parameters,
properties of the PROFINET interface, Ethernet addresses area) so that the IO controller can
adapt the device name later at the operator.
This option is disabled by default.