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Glossary
data as well as the status of all SINAUT subscribers in the network and makes this data
available directly to WinCC for fast transfer to the process image.
ST7sc
The SINAUT system allows the networking of SIMATIC stations with a control center over a
WAN (Wide Area Network). This control center can also be a SIMATIC station or a PC-
based control center, for example, WinCC with the SINAUT ST7cc add-on.
SINAUT ST7sc allows the manufacturers of control systems to connect to SINAUT without
needing to integrate a SINAUT interface. Communication is over OPC: As an OPC server,
SINAUT ST7sc forms the interface between the SINAUT system and a control system
connected as an OPC client.
The OPC interface is also suitable for data exchange with other applications, for example,
the Microsoft Office application Excel.
Station
In the SINAUT world, the term station includes the entire hardware components required for
acquisition, processing and communication with other stations or a master station/control
center. A station can, for example, consist of a modem, a TIM and a programmable
controller (in turn consisting of a CPU and I/O modules). A SINAUT station can also include
several programmable controllers, or, in the case of a node station, several TIMs.
Status message
A status message is a process status (for example pump on, valve open) or alarm (for
example limit value exceeded). This is binary information with the possible values 0 or 1.
Eight status messages are put together to form one byte.
TCP/IP
(Transmission Control Protocol / Internet Protocol)
Network protocols for connecting two computers in the Internet. IP is the basic protocol. UDP
is based on IP and sends individual packets. These can arrive at the recipient in a different
order from the order in which they were sent - they can even be lost. TCP is used to make
the connection reliable and makes sure, for example, that data packets are passed on to the
application in the correct order. In addition to the IP addresses, UDP and TCP also involve
port numbers between 1 and 65535 with which the various services can be distinguished.
On a Windows PC, the WINSOCK.DLL (or WSOCK32.DLL) is responsible for handling the
two protocols.
TIM
(Telecontrol Interface Module)
The TIM transmission processor is a communications module that handles all data
transmission functions provided by the SINAUT system independently. Depending on the
type, the TIM has one or two WAN interfaces, an MPI interface or an Ethernet interface.
Depending on the requirements, a variety of transmission equipment can be connected. The
module is supplied in an S7-300 housing.
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SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
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