Siemens SIMATIC S7-400H System Manual page 68

S7-400H in PROFIBUS DP mode
7.1 CPU 41x–H as PROFIBUS DP master
Components supporting PROFIBUS DPV1 functionality
DPV1 master
● The S7-400 CPUs with integrated DP interface.
● CP 443-5, order number 6GK7 443–5DX03–0XE0, 6GK7 443–5DX04–0XE0.
DPV1 slaves
● DP slaves listed in the STEP 7 hardware catalog under their family names can be identified
● DP slaves integrated in STEP 7 by means of GSD files revision 3 or higher.
What operating modes are there for DPV1 components?
● S7-compatible mode
● DPV1 mode
Compatibility between DPV1 and IEC 61158?
You can continue to use all existing slaves after converting to DPV1. These do not, however,
support the enhanced functions of DPV1.
You can also use DPV1 slaves without a conversion to DPV1. In this case they behave like
conventional slaves. SIEMENS DPV1 slaves can be operated in S7-compatible mode. To
integrate DPV1 slaves from other manufacturers, you need a GSD file complying with
IEC 61158 earlier than revision 3.
Discovering the bus topology in a DP master system using SFC 103 "DP_TOPOL"
A diagnostic repeater is available to make it easier to localize disrupted modules or breaks
on the DP cables when failures occur during operation. This module is a slave that discovers
the topology of a DP chain and detects any problems caused by it.
You can use SFC 103 "DP_TOPOL" to trigger the identification of the bus topology of a DP
master system by the diagnostic repeater. SFC 103 is described in the corresponding online
help and in the
repeater refer to the
order no. 6ES7972–0AB00–8BA0.
68
in the information text as DPV1 slaves.
In this mode, the component is compatible with IEC 61158. However, you then cannot
use the full DPV1 functionality.
In this mode can make full use of DPV1 functionality. Automation components in the
station that do not support DPV1 can be used as before.
System and Standard Functions
Diagnostic Repeater for PROFIBUS DP
manual. For information on the diagnostic
manual,
System Manual, 09/2007, A5E00267695-03
S7-400H