CP 343-1
Manual, 12/2018, C79000−G8976−C201-08
11
The CP 343-1 communications processor is intended for operation in a SIMATIC S7-300,
SIMATIC C7-300 automation system or SINUMERIK 840D power line. It allows the
connection of the S7-300 to Industrial Ethernet and supports PROFINET IO.
To integrate the CP in a linear bus or a ring, to connect a further Ethernet device or to use
PROFINET media redundancy, a 2-port ERTEC real-time switch with autocrossing,
autonegotiation and autosensing was integrated.
Enhanced functions
Abbreviations used with the CP 343-1 module
The module abbreviations used below for the CP 343-1 (for example EX30) correspond to
the last four characters of the mid section of the order number.
Requirement for configuring new functions of firmware version V3.0
To use the features listed below, the following STEP 7 version is necessary:
● STEP 7 V5.5 + Service Pack 2 + Hotfix 1 + HSP 1057
With STEP 7 Professional V11.0 SP2, only the functions of firmware version V2.2 of the CP
can be configured.
Functional enhancements of the EX30 from firmware version V2.6 to V3.0 - can be used with STEP 7
V5.5
The following new functions can be used with the module with firmware version 3.0:
● "Shared device" function as PROFINET IO device and as IO controller
● Use of PROFIenergy functionality
This requires the following PROFIenergy program blocks for the CP 343-1 in the
"SIMATIC_NET_CP" library with the STEP 7 version listed above:
– PE_Start_CP, PE_CMD_CP, PE_I_DEV_CP and the program block DS3_WRITE_CP
for the use of power modules of the ET 200S for PROFIenergy.
– The supplementary program blocks FC0 to FC8 for the PROFIenergy response data
can be found in the Standard Library.
You will find the documentation of the program blocks in the online help and in the
manual for the program blocks, see References, /10/ (Page 73).
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