Communication   
11.14 DR 12 Ethernet parameters 
  SIWAREX WT241 
138  Manual, 05/2015, A5E36046748A 
Current device name header 
11.14.1  Device MAC address 
Each SIWAREX module has a unique MAC address. This MAC address cannot be changed 
by the user. 
11.14.2  Port MAC address 
Each SIWAREX module has a unique MAC port address. This MAC address cannot be 
changed by the user. 
11.14.3  IP address 
Assign the IP address using the Primary Setup Tool, SIWATOOL, or via the SIMATIC (see 
chapter "IP address for SIWAREX (Page Fehler! Textmarke nicht definiert.)"). 
11.14.4  Subnet mask 
Assign the subnet mask of your network.