Configuring Hardware and Communication Connections STEP 7.pdf

Configuring the Distributed I/O (DP)
3.10 DPV1
3.10.1 What You Should Know About PROFIBUS DPV1
Below you can find information relating to the topics:
• New mechanisms introduced by the DPV1 Masters/Slaves
• The changes you meet when configuring and programming those components
Additional Information
Our Internet Customer Support Pages contain a FAQ publication relating to this
topic under article ID 7027576. (Title: "Changing over to DPV1"; refer to
Automation Systems > SIMATIC Decentralized Peripherals > PROFIBUS >
General)
How do you recognize a DPV1 Master/Slave?
CPUs of the S7-400 family with integrated DP interface support DPV1 Master
functions as of Firmware Version 3.0.
DPV1 Master functions are also available for the new CP 443-5 (DX03).
DP Slaves listed in the Step 7 hardware catalog under their family name can be
recognized in the Info text as DPV1 Slaves.
DP Slaves implemented in STEP 7 via GSD Files support DPV1 functions as of
GSD Revision 3.
Additional Functions DPV1 Devices (Master/Slaves)
DP Masters and DP Slaves that support DPV1 are, contrary to the "old" devices
(often referred to as "Standard Masters" or "Standard Slaves"), equipped with the
following additional functions:
• Acyclic data exchange between Masters and Slaves is supported
(reading/writing a data record to reconfigure an operational slave). The module
data records and their structure is explained in the documentation for the
respective module.
• A DPV1 Slave can provide interrupts to insure that the Master CPU handles the
event triggering the interrupt. Interrupt data is also evaluated in CPU STOP
mode (updating the diagnostic buffer and module status); OBs are, however,
not processed in STOP mode.
In addition to the interrupts known in SIMATIC (for example, diagnostic interrupt
with ET 200M), the new Status/Update/Manufacturer specific interrupts are now
also supported.
Comment: DP Slaves that were up to now fully integrated in STEP 7 (that is,
Slaves not configured via GSD File, but rather via internal STEP 7 module
information) also supported a part of those functions, however, with an S7 specific
significance of, for example, data record contents. New is here that those functions
are now available manufacturer independent (for example, for DP Slaves with GSD
Files Revision 3).
Configuring Hardware and Communication Connections with STEP 7
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