Description; Operating Principle - Siemens SIMOVERT MASTERDRIVES SIMOLINK Betriebsanleitung

SIMOLINK Switch
2

Description

NOTE
2.1

Operating principle

Siemens AG GWE-477 762 4070.76 J
SIMOVERT MASTERDRIVES
02.2001
To replace the "line shaft" by a drive system containing several single
drives, these individual drive units must be synchronized with one
another. This synchronization functionality is provided by SIMOLINK,
which also supports distribution of setpoints and internode data
communication. It may be necessary, for example, when a master fails,
to assign its slave drives to another master, or to adjust the topology of
the SIMOLINK ring to a changing application using a signal "switch".
This is the function of the SIMOLINK Switch (SLS). It allows several (up
to 4) SIMOLINK rings to be flexibly interconnected.
The SIMOLINK transmission medium is a fiber-optic cable. Fiber optics
made of glass or plastic may be used. SIMOLINK has a ring-shaped
structure, with each node in the ring acting as a signal amplifier. A
maximum of 201 active nodes can be interconnected on the SIMOLINK
ring.
For further information about SIMOLINK, please refer to Chapter
"Communication / SIMOLINK" of the SIMOVERT MASTERDRIVES
Compendium Motion Control, Order No.: 6SE7087-6QX50.
The incoming optical signals carried by the fiber-optic cable are
converted to electrical signals on fiber-optic receiver modules in the
SIMOLINK Switch. The control logic determines which input is switched
through to which output. One input can only be connected to one
output. The electrical output signals of the switching matrix are
converted back to optical signals via fiber-optic transmission modules.
The SIMOLINK Switch has 4 ports (channels), each comprising a fiber-
optic receiver and transmitter module.
The dead times resulting from the opto-electrical conversion are
calculated as the SIMOLINK system is booting and compensated when
the SIMOLINK nodes are active. The SIMOLINK Switch is a passive
node in the SIMOLINK ring. It does not have a node address and is
excluded from the dead-time calculation. These factors must be taken
into account as regards the position of the SIMOLINK Switch in the
SIMOLINK ring.
The appropriate connections between the input and output signal can
be selected via a DIL switch (local) or binary inputs (remote). The
settings on the DIL switches have higher priority.
The selected position of the SIMOLINK Switch is displayed by means of
5 green LEDs in the front panel. Two LEDs indicate whether the
SIMOLINK Switch mode is selected via the DIL switches (Local) or no
switch mode is selected (OFF).
Operating Instructions
Description
2-1