Requirements for use   
3.4 SOFTNET Security Client for VPN tunnels with PCs 
  CP 443-1 Advanced (GX30) 
46  Manual, 03/2019, C79000-G8976-C256-05 
Table 3- 3  Required STEP 7 addon version 
CP 4431 Advanced functionality 
as of V3.0 + Service Pack 7  The full functionality as described in this document can be 
To operate PROFINET CBA, you require the current service packs of SIMATIC iMap 
containing the current versions of the program blocks PN_InOut (FB88) and PN_InOut_Fast 
(FB90).  
●  SIMATIC iMap V3.0 or higher - Download Service Pack 3: 
●  SIMATIC iMap STEP 7 addon V3.0 or higher - Download Service Pack 7: 
You can download the service packs from the following address: 
Link: (https://support.industry.siemens.com/cs/ww/en/ps/14366/dl) 
 
SOFTNET Security Client for VPN tunnels with PCs 
SOFTNET Security Client for VPN tunnels with PCs 
The operation of VPN tunnels between a SOFTNET Security Client and the CP 443-1 
(GX30) has been released as of the following version of the SOFTNET Security Client: 
SOFTNET Security Client V4.0 Hotfix 1 
 
Programming 
Program blocks 
For some communications services, there are preprogrammed program blocks (FCs / FBs) 
available as the interface in your STEP 7 user program. 
Refer to the documentation of the program blocks in the online help of STEP 7 or in the 
manual /12/ (Page 120). 
 
Note 
Using current block versions 
We recommend that you alway
s use the latest block versions for all module types. You will 
find the current blocks to download from the Internet in Siemens Industry Online Support at 
the following address:
 
https://support.industry.siemens.com/cs/ww/en/ps/15335/dl) 
With older module types, this recommendation assumes that you are using the latest 
firmware for the particular module type.