Communication
3.1 Interfaces
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
3-3
Note
(for DP interface in slave mode only)
When you disable the Commissioning / Debug mode / Routing check box in the DP interface
properties dialog in STEP 7, all user-specific transmission rate settings will be ignored, and
the transmission rate of the master is automatically set instead. This disables the routing
function at this interface.
Devices capable of PROFIBUS DP communication
• PG/PC
• OP/TP
• DP slaves
• DP masters
• Actuators/Sensors
• S7-300/S7-400 with PROFIBUS DP interface
Reference
Further information on PROFIBUS: http://www.profibus.com
3.1.3 PROFINET (PN)
Availability
CPUs with a “PtP“ name suffix are equipped with a PtP X2 interface. X2.
Connecting to Industrial Ethernet
You can use the integrated PROFINET interface of the CPU to establish a connection to
Industrial Ethernet.
The integrated PROFINET interface of the CPU can be configured via MPI or PROFINET.
Requirements
• CPUs with FW 2.3.0 or higher (for example CPU 315-2 PN/DP)
• STEP 7 V5.3 + Servicepack 1 or higher
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