Configuring Hardware and Communication Connections STEP 7.pdf

Configuring the Distributed I/O (DP)
Configuring the CP 342-5 as a DP Slave
Procedure
The CP 342-5 can be configured for operation as a DP slave. The station in which
the CP was configured is then an "intelligent slave."
1. Configure a station with the CP 342-5 DP as DP slave.
(Select the option "DP slave" in the "Operating Mode" tab of the CP.)
2. Configure a DP master (CPU with integrated PROFIBUS-DP interface or CP
with PROFIBUS-DP interface) in another station.
3. Drag the CP 342-5 from the "Hardware Catalog" window (Configured
Stations folder) and drop it onto the symbol for the DP master system
( ).
A dialog box appears in which you can select configured intelligent DP slaves.
4. Confirm your selection with "OK."
5. Configure the DP IDs and addresses for the input and output areas in the
displayed configuration table for the DP slave. To do this, drag and drop the
"Universal Module" from the "Hardware Catalog" window (Configured
Stations folder) into the configuration table (lower half of the station window)
and then double-click the corresponding row.
Note
Data exchange between a "preprocessing CPU" and a CP 342-5 DP within the DP
slave is described in the SIMATIC NCM documentation.
Configuring the CPU 31X-2 DP or CPU 41X-..DP as a DP Slave
CPUs with integrated DP interface (such as CPU 315-2 DP) can be configured for
operation as a DP slave. The station is which the CPU was configured is then the
"intelligent slave."
The procedure for a CPU 315-2 DP is described below. The procedure is always
the same, save for the selection of the CPU type (also refer to Example for the
Configuration of an S7-400 as I-Slave).
Configuring Hardware and Communication Connections with STEP 7
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