Technical data

2.1 SINEC Overview
SINEC (SIEMENS Network Architecture for Automation and Engineering) is
the name of the communications network for SIEMENS programmable
controllers, process computers workstations and personal computers.
SINEC includes the following:
➣ The communications network comprising the transmission medium, link
and transmission components and the appropriate transmission
technique.
➣ Protocols and services for data transmission between the devices
mentioned above.
➣ The modules of the automation system or computer providing the link to
the communications network (communications processor "CP").
To handle the variety of tasks in automation engineering SINEC provides
different communications networks to suit the particular situation.
The topology of rooms, buildings, factories and complete company
complexes and the prevalent environmental conditions mean different
requirements. The networked automation components also make different
demands on the communications system.
To meet these various requirements, SINEC provides the following
communications networks complying with national and international
standards:
➣ SINEC H3,
a high-speed optical network (FDDI standard).
➣ SINEC H1/H1FO,
a communications network using baseband technology according to
IEEE 802.3 with the CSMA/CD medium access technique operating on
The following media:
B8976060/02 System Overview
2 - 3 Volume 1