10 - 2 VM600 networking manual MAVM600-NET/E
Edition 9 - February 2018
PROFINET
SETTING UP A PROFINET CONNECTION (CPUM SW VERSION 081 OR LATER)
In addition, PROFINET distinguishes between different types of communication according to
the nodes to be connected:
•PROFINETCBA
This is suitable for communication among controllers via TCP/IP as well as additional RT
requirements and focuses on distributed automation systems (higher level).
•PROFINETIO
This supports communication between controllers and IO devices with RT and IRT
requirements and focuses on data exchange with programmable controllers (lower
level).
NOTE: It is possible to use all types of communication in parallel on the same network, that
is, PROFINET IO and PROFINET CBA can communicate at the same time on the
same bus.
The VM600 CPUM implements PROFINET IO to support PROFINET communications.
10.2.2 VM600 PROFINET implementation
The PROFINET software interface implemented for CPUM cards running firmware
version 081 or later builds on the existing Modbus interface described in 8.2 Modbus.
As shown in Figure 10-1, the VM600 CPUM card includes an additional PROFINET layer
above the existing Modbus server. Externally, this PROFINET layer uses the PROFINET IO
protocol to handle all PROFINET communications over an industrial Ethernet interface.
Internally, this PROFINET layer uses the existing Modbus interface to communicate with any
cards in the VM600 rack.
Only the primary network interface (ETH1) of a CPUM card can be used for PROFINET
communications. See 3.4.2.1 Example net.cfg file for further information.
NOTE: In order for PROFINET communications to work, only the primary network
interface (ETH1) of the CPUM card can be used.
In addition, to enable and configure PROFINET communications, see 10.6 PROFINET
configuration files for information.
Industrial Ethernet
PROFINET
Figure 10-1: VM600 CPUM PROFINET implementation
VM600 CPUM
SIMATIC CPU
(or other DCS)
Modbus
MPC4 and AMC8
cards
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