SINAUT (SIemens
Network AUTomation) is a communication protocol for automatic
monitoring and controlling of remote process stations on basis
of SIMATIC S7 developed by Siemens. The main application areas
are telemetric and telecontrol in the sectors water/sewage, oil
and gas, district heating, mining and traffic engineering.
Topology
Figure: WinCC OA
SINAUT Topology
The communication between the WinCC OA SINAUT driver and
the SINAUT nodes (stations) is done through TCP/IP via one Master
TIM as gateway. This means that a direct communication between
WinCC OA and
the nodes is not possible. This has the advantage that the connection-specific
settings (switched connection, fiberoptic, etc.) are handled by
the Master TIM and stay for WinCC OA
completely transparent.
At driver start-up the driver connects to
each configured Master TIM (maximal 256 per driver) for whose
a peripheral address has been defined (see Defining
the peripheral addresses of the SINAUT driver). If no connection
can be established, the driver will try it after a configurable
time again. After a successful connection establishment each Master
TIM sends automatically the last values of each node (station)
to the driver.
Redundancy
WinCC OA
redundancy is supported by the WinCC OA
SINAUT driver. Therefore a redundant connection to the ST7SC (driver
PC) must be configured in the SINAUT project for each Master TIM
that shall communicate with the SINAUT driver. The particular
Master TIM sends all input data to both computers, because an
active/passive is not supported. Output data are sent only by
the active computer to the Master TIM.
User Interface
The user interface of the SINAUT driver
consists of a configuration panel
for each connection to the Master TIM and the panel
for defining the peripheral address. |
