Requirements For Use - Siemens SIMATIC S7-CPs Manual

2 Requirements for Use

2 Requirements for Use
2.1 Configuration limits
When using the CP type described here, the following limits apply within a rack:
S Max. number of CPs 14
S Number of CPs operating as PROFINET IO controllers: 4
Notice
S
The number of CPs operating as PROFINET IO controllers depends on the
number of CP 443-5 Extended modules operating as DP masters in the S7-400
station. A total of 10 CPs can be operated as controllers for the distributed I/O
(PROFINET IO controllers or DP masters); of those, however, only up to 4 as
PROFINET IO controllers.
S
Please note the following regarding multiprocessor mode: When operating the
CP as a PROFINET IO controller, only the process image of the assigned CPU
can be distributed via the CP.
2.2 System environment
General Requirements
S The CP has been released with CPUs as of firmware version 4.1.
CPUs with firmware version 4.0 must be upgraded to V4.1.
S Open TCP/IP communication is supported by all CPUs as of firmware version
V4.1.
S The full range of functions (MRP, IRT, prioritized startup) is available only with
CPUs as of firmware version 5.2.
Note also the information on the required version of the STEP 7 configuration
tool in Section 2.3.
S CPUs with firmware version 5.0 must be upgraded to V5.1.
Restrictions for CPUs with older firmware versions
S The use of the blocks FC53 "AG_SSEND" and FC63 "AG_SRECV" is possible
only on CPUs with a firmware version V5.1 or higher.
B−10
CP 443-1 for Industrial Ethernet / Manual Part B
C79000-G8976-C223−06
Release 07/2010