S7-400H 
System Manual, 03/2012, A5E00267695-11 
457 
Function modules and communication processors 
supported by the S7-400H 
D
 
You can use the following function modules (FMs) and communication processors (CPs) on 
an S7-400H automation system. 
 
 
Note 
There may be further restriction for individual modules. Refer to the information in the 
corresponding product information and FAQ, or in SIMATIC NET News. 
 
 
FMs and CPs which can be used centrally 
 
Module  Order No.  Release  One-sided  Redundant 
Counter module FM 450  6ES7 450–1AP00–0AE0  As of product version 2  Yes  No 
6DD 1607-0AA1  As of firmware 1.1.0  Yes  No Function module FM 458-1 DP 
6DD 1607-0AA2  As of firmware 2.0.0  Yes  No 
6ES7 441–1AA02–0AE0  As of product version 2 
6ES7 441–1AA03–0AE0  As of product version 1 
as of firmware V1.0.0 
Communication processor  
CP 441-1 (point-to-point link) 
6ES7 441–1AA04–0AE0  As of product version 1 
as of firmware V1.0.0 
6ES7 441–2AA02–0AE0  As of product version 2 
6ES7 441–2AA03–0AE0  As of product version 1 
as of firmware V1.0.0 
6ES7 441–2AA04–0AE0  As of product version 1 
as of firmware V1.0.0 
Yes  No 
Communication processor  
CP 441-2 (point-to-point link) 
6ES7 441–2AA03–0AE0  As of product version 1 
as of firmware V1.0.0 
Yes  No 
6GK7 443–1EX10–0XE0  As of product version 1 
as of firmware V2.7.3 
Yes  Yes Communication processor  
CP 443-1 Multi (Industrial Ethernet, 
TCP / ISO transport) 
6GK7 443–1EX11–0XE0  As of product version 1 
as of firmware V2.7.3 
Yes  Yes 
6GK7 443–1EX20–0XE0  As of product version 1 
as of firmware V2.1 
Yes  Yes Communication processor  
CP 443-1 Multi (Industrial Ethernet 
ISO and TCP/IP 2-port switch) 
Without PROFINET IO and 
PROFINET CBA 
6GK7 443–1GX20–0XE0 
S7 connections via Gbit 
port are not permissible 
As of product version 3 
as of firmware V2.0 
Yes  Yes 
6GK7 443–5FX01–0XE0  As of product version 1 
as of firmware V3.1 
Yes  Yes Communication processor  
CP 443-5 Basic (PROFIBUS; S7 
communication) 
6GK7 443–5FX02–0XE0  As of product version 1 
as of firmware V3.2 
Yes  Yes