Technical data

2.2.1 Standards
SINEC L2 is based on the reference model of the International Standards
Organization ISO for "Open System Interconnection" (OSI, Fig. 2.1). The
aim of this model is the connection of devices from different manufacturers
via a common "communications system".
The area of application of SINEC L2 bus systems ranges from simple field
bus applications to the networking of production cells (cell bus). In keeping
with this broad area of application, three protocol standards are available
with SINEC L2:
➣
SINEC L2-TF
(technological functions)
is suitable for cell networking and allows communication with higher
SINEC H1 networks. /2/ /13/
➣
SINEC L2-FMS
(field bus message specification)
is a version intended for networking in the field area with devices of
different manufacturers which comply with Part 2 of DIN 19245. /10/
/12/
➣
SINEC L2-DP
(distributed I/Os)
is for the fast connection of distributed I/O systems and corresponds to
DIN E19245 Part 3 PROFIBUS-DP. /11/
All three versions use the PROFIBUS link protocol, i.e. Part 1 of DIN 19245
/1/. All three protocols can be operated simultaneously on a SINEC L2 bus
system, however, communication is only possible between stations with the
same protocol structure.
B8976060/02 System Overview
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