Commissioning The Cpu As Dp Slave - Siemens SIMATIC S7-300 Hardware And Installation Manual

Commissioning
start-up of the DP master system
CPU 315-2 DP / 316-2 DP / 31xC-2 DP is
Customize the start-up monitoring time for DP
slaves in parameter Monitoring time for
parameter transfer to modules.
That is, the DP slaves must start up within the set time and be configured by the CPU (as DP master).
PROFIBUS address of the DP master
With CPU 31x-2 DP/31xC-2 DP do not set "126" as PROFIBUS address.

9.7.2 Commissioning the CPU as DP slave

Requirements for commissioning
• The DP master is configured and programmed.
• If the MPI/DP interface of CPU 318-2 DP is to be operated as DP interface, you
must configure the interface accordingly.
• You must program and configure CPU 31x-2 DP/31xC-2 DP as DP slave prior
to commissioning. That is, in STEP 7 you must:
"switch on" the CPU as DP slave,
–
assign a PROFIBUS address to the CPU,
–
assign a slave diagnostic address to the CPU,
–
specify whether the DP master is an S7 DP master or another DP master,
–
specify the address areas for data exchange with the DP master.
–
• All other DP slaves are programmed and configured.
Cross-reference
Information on upgrading to a CPU 31xC, 312, 314, 315-2 DP can be found in the
section of the same name in the CPU Data 31xC and 31x Reference Manual .
GSD files
When working on an IM 308-C or non-Siemens system, you require a GSD file in
order to be able to configure CPU 31x-2 DP/31xC-2 DP as DP slave in a DP
master system.
9-30
DP master
S7-300 Programmable Controller Hardware and Installation
CPU 318-2 DP is DP master
Customize the start-up monitoring time for DP
slaves in parameters Monitoring time for
parameter transfer to modules and Module
reports ready.
A5E00105492-02