Siemens CM 1542-1 Operating Instructions Manual page 4

Preface
Address label: Unique MAC address preset for the CM
When supplied, the CM has a total of 3 default MAC addresses with the following
assignment:
● PROFINET interface
The MAC address of the PROFINET interface is printed on the housing.
(visible in STEP 7 if nodes are reachable)
● One MAC address for each of the 2 Ethernet ports of the PROFINET interface
The MAC addresses of the Ethernet ports are required only for detection and evaluation
of neighborhood and topology relations (LLDP).
Abbreviations and names
● CP
In this document, the term "CP" is also used instead of the full product name.
● STEP 7
The name STEP 7 is used to mean the STEP 7 Professional configuration tool.
Purpose of the manual
These Operating Instructions supplement the S7-1500 system manual.
With the information in this manual and the system manual, you will be able to commission
the CM.
New in this release
New ATEX/IECEx approval
Replaced edition
Edition 01/2017
Current manual release on the Internet
You will also find the current version of these operating instructions on the Internet pages of
Siemens Automation Customer Support
Link: (https://support.industry.siemens.com/cs/ww/en/ps/15341/man):
4
Operating Instructions, 07/2019, C79000-G8976-C355-04
CM 1542-1