Cell Protection Concept - Siemens SIMATIC NET System Manual

Service technician A uses the SINEMA RC Client software to establish VPN tunnel 1 to the
SINEMA RC Server via the Internet. Mobile wireless is used for the communication. After
successful authentication the SINEMA RC server establishes the VPN Tunnel 3 to Plant A
through which the service technician receives access to this plant.
Service technician B uses a wired phone line for the connection to the Internet and to set up
VPN tunnel 2 to the SINEMA RC Server. The technician can access plant B using the VPN
tunnel 4 established by the SINEMA RC Server.
Benefits
● Central management of all users, access permissions and VPN connections through the
SINEMA Remote Connect server
● You only need access to a telephone network (whether landline network or mobile
wireless network) for secure and simple connection to the plants.
● Access to the company network is not necessary.
● The service technician only requires the SINEMA RC Client software, which can be
operated without any special IT know-how.
3.4

Cell protection concept

Task
In a car bodywork plant, the company network includes both the office network, the data
processing center and the automation cells in production. The integration of all company
areas allows continuity from the management to the field level. This means that process
data, such as numbers produced, manufacturing number and type names, are available
throughout the company. Apart from this, fully integrated diagnostics can be created for field
devices and network components. This continuity does, however, involve certain risks. There
is a danger of unauthorized access from the office network to the automation cells and the
influence of one automation cell on another. The network needs to be structured so that
these weak points are eliminated. The configuration should also be simple to carry out since
personnel without special training in security will be involved in commissioning and service.
Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
Examples of applications
3.4 Cell protection concept
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