Simolink Drive Coupling; Basic Information - Siemens SIMATIC FM 458-1 DP User Manual

4.6

SIMOLINK drive coupling

4.6.1 Basic information

Introduction
Application
Features
Application Module FM 458-1 DP - User Manual
A5E01078222-02 Edition 03.2009
SIMOLINK (Siemens Motion Link, SL) is a digital, serial data transfer
protocol using fiber-optic cables as data transfer medium.
The SIMOLINK drive coupling has been developed for extremely fast
and/or rigid cycle transfer of process data (setpoints, actual values,
control and status information)
 between drives (dispatcher, transceiver)
- SIMOVERT MASTERDRIVES MC/VC, or
- SIMOREG DC-MASTER or
 between drives and a higher-level automation system (SL master)
- SIMATIC S7-400 station with FM 458-1 DP and EXM448-1/
EXM 448-2 or
- SIMADYN D subrack with PM5/6 and ITSL
 between automation systems (SL master, slave/s)

Where all of the connected nodes are synchronized (SYNC telegram)
to a common system clock.
By transferring a time-equidistant and jitter-free SYNC telegram,
SIMOLINK allows high-dynamic response and all of the connected
individual drives move in absolute position synchronism (e.g. virtual
shaft).
 Max. 201 active nodes (SL master, dispatcher and transceiver,
passive nodes include switches and cable concentrators)
 Bus cycle:
Time between two SYNC telegrams, i.e. the circulating time in the
ringbus
 SYNC telegram:
All of the connected nodes are synchronized after the telegrams were
sent
 Telegram:
32-bit word (double word), occupies one channel for each piece of
process data.
 Nodes read and write their data once every bus cycle.
Configuring
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