SIEMENS
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Siemens IK PI · 2015
PROFINET/Industrial Ethernet
System interfaces for SIMATIC HMI
System interfaces with WinCC (TIA Portal)
SIMATIC S7
2
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Overview
The following types of interface are differentiated in respect
of the link between the SIMATIC Panels and SIMATIC S7
controllers:
•
PROFINET interface:
Coupling of SIMATIC Panel to SIMATIC S7 controllers via
Industrial Ethernet TCP/IP using the integrated PROFINET
interface of the CPU or, alternatively, a PROFINET interface
module.
•
MPI/PROFIBUS interface:
Coupling of SIMATIC Panel to SIMATIC S7 controllers via
MPI/PROFIBUS using the integrated MPI/PROFIBUS interface
of the CPU or the integrated PPI interface of the CPU in the
case of S7-200 or, alternatively, a PROFIBUS interface module
in the case of S7-1200, S7-1500, S7-300 and S7-400.
•
PPI interface:
Coupling of SIMATIC Panel to SIMATIC S7-200 via PPI network
using the integrated PPI interface of the CPU
The maximum possible number of S7 connections of one CPU is
determined by its performance capacity (see Catalog ST 70);
from the point of view of SIMATIC
Panel, the following restrictions
apply:
•
Basic Panel, Comfort Panel 4",
Mobile Panel 177: max. 4 connections
•
Comfort Panel 7" - 22": max. 8 connections
•
Mobile Panel 277: max. 6 connections
•
PC with WinCC Runtime Advanced: max. 8 connections
PPI interface
The PPI interface is a point-to-point connection between a
SIMATIC Panel (PPI master) or alternatively a PG (PPI master)
and an S7-200 (PPI slave).
MPI/PROFIBUS interface or PROFINET interface
The corresponding multipoint-enabled communication inter-
faces of SIMATIC Panels and SIMATIC S7 are used.
The following are possible:
•
Interface between one or more SIMATIC Panels (MPI master)
and one or more S7-1200/S7-1500/S7-300/S7-400s or WinAC
(MPI master) (possible network topology: MPI/PROFIBUS or
Industrial Ethernet, TCP/IP)
•
Interface between one or a number of SIMATIC Panels (MPI
master) and one or a number of S7-200s (MPI slave)
1)
(possible network topology: PPI, MPI/PROFIBUS)
Unlike PPI connections, MPI connections are static connections
that are set up during booting and then monitored.
The original format of a master/master link has been joined by a
master/slave link, which has enabled integration of the S7-200
(except CPU 212).
1)
In principle this type of information exchange between SIMATIC
Panels and SIMATIC S7 is independent of the network used, PPI,
MPI/PROFIBUS or Industrial Ethernet: SIMATIC Panels are S7
clients and SIMATIC S7 CPUs are S7 servers.
1)
With regard to restricted baud transmission rates for S7-200,
see Catalog ST 70.
© Siemens AG 2014