Sinec L2 - Siemens Simatic PG 740 Manual

Starting Up the PG 740
3.8
Networking
PG 740s via

SINEC L2

(PROFIBUS)
3
Principle of
Operation
Hardware
3-18
SINEC L2
SINEC L2 is an open and ruggedly designed bus-type local area network
(LAN) for industrial applications. It can be used to configure networks with
up to 127 stations. SINEC L2 has a data transfer rate of 1.5 million bps.
SINEC L2 operates on the master-slave principle with token passing (to
DIN 19245, PROFIBUS). It distinguishes between active and passive
stations. An active station receives the token and passes it on to the next
station within a specified time.
You need the following components, for instance, for networking with
SINEC L2:
CP 5412
RS 485 bus terminal
RS 485 interface
Shielded twisted two-wire cable (LAN cable)
Note
You will find more detailed information on the SINEC modules in the
SINEC Catalog IK 10 (Order No. E86060-K6710-A101-Ax).
For information on how to install the modules and make any modifications
to the network configuration, please refer to the installation instructions for
the various modules.
Programming Device PG 740
C79000-G7076-C742-01