Application and functions 
  1.9 Configuration examples 
CP 1542SP-1, CP 1542SP-1 IRC, CP 1543SP-1 
Operating Instructions, 01/2017, C79000-G8976-C426-03 
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Figure 1-1  Configuration example of an ET 200SP with CP 1542SP-1 
CP 1543SP-1 - Cell protection with Security functions 
The CP communicates encrypted with communications partners in the connected network. 
The firewall monitors the access to the ET 200SP and therefore protects lower-level 
networks. This avoids data loss, disruptions of production and damage to machines. 
 
Figure 1-2  Configuration example of an ET 200SP with CP 1543SP-1