Siemens SIMATIC HMI Series System Manual page 219

Communication channels in WinCC
● Industrial Ethernet ISO L4 (1)
● Industrial Ethernet ISO L4 (2)
SIMATIC 505 Ethernet TCP/IP
● Industrial Ethernet TCP/IP
Profibus FMS
● FMS
Profibus DP (V0-Master)
● DP 1
● DP 2
● DP 3
● DP 4
Allen Bradley - Ethernet IP
● CAMP
7)
Mitsubishi Ethernet
● MELSEC Communication Protocol (MC
protocol)
Modbus TCPIP
● Modbus TCP/IP
OPC
● Data Access
● XML-DA
OPC Unified Architecture
● Data Access
Remarks
1) In principle, all communication channels can be combined with each other. However, the
subordinate communication drivers can lead to limitations.
When the SIMATIC S7 Protocol Suite is used, a maximum of 64 S7 connections can be
operated. A typical configuration contains 60 S7 connections, for example.
Examples:
● 8 S7 connections via "MPI" and 52 S7 connections via "Industrial Ethernet TCP/IP"
or
● 60 S7 connections via "Industrial Ethernet TCP/IP"
2) COM1/COM2 or internal software interfaces for SIMATIC S7 Protocol Suite communication
"Soft-PLC" and "Slot-PLC" as well as DCOM for OPC.
3) In the case of Soft-Net, communication runs on the PC processor. In the case of Hard-Net,
the communication card has its own microprocessor and relieves the PC processor during
communication.
WinCC: General information and installation
System Manual, 02/2017, A5E40840020-AA
PC- MPI/Profibus
1)
based Soft-Net
2)
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8.9 Process Communication
MPI/Profibus
Hard-Net
3) 3)
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Performance Data
Industrial Industrial
Ethernet Ethernet
Soft-Net Hard-Net
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