12.2010 Communication / SIMOLINK
Siemens AG 6SE7087-6QX70 (Version AM)
SIMOVERT MASTERDRIVES Compendium Motion Control 8.3-1
8.3 SIMOLINK
8.3.1 General principles
SIMOLINK (Siemens Motion Link) is a digital, serial data transfer
protocol with a fiber-optic cable as its transfer medium. The SIMOLINK
drive link has been developed for extremely fast and strictly cyclical
transfer of process data (control information, setpoints, actual values
and status information) between individual MASTERDRIVES MC/VC
units or between MASTERDRIVES MC/VC units and a higher-level
control system with synchronization of all connected nodes to a
common system clock.
SIMOLINK enables highly dynamic and accurate synchronism of all
connected MASTERDRIVES MC units to be realized on account of its
extremely fast data transfer by transmitting a strictly time-equidistant
and jitter-free SYNC telegram in each cycle. Typical areas of use are,
for example, all applications requiring a high degree of synchronism
(angular synchronism) of individual MASTERDRIVES MC units to each
other. A typical area of application is, for example, the replacement of
previously mechanically coupled moving axes by individual electric
drives, e.g. for printing machines. SIMOLINK can further be used in
highly dynamic coordination tasks of individual MASTERDRIVES
MC/VC units, such as in the motion control of individual axes on
packing machines.
SIMOLINK consists of the following components:
♦ SIMOLINK master
Interface for higher-level automation systems,
e.g. SIMATIC FM458 or SIMADYN (see Chapter 8.3.8)
♦ SIMOLINK board (SLB)
Interface for drives (see Chapter 8.3.4)
♦ SIMOLINK switch (see following section)
♦ Fiber-optic cable
Connecting medium of nodes on the SIMOLINK ring (see Chapter
8.3.4)
The SIMOLINK master and the SIMOLINK board are active nodes on
SIMOLINK. The SIMOLINK switch is a passive node.
♦ Active nodes can receive and send telegrams and can read or write
the contained information.
♦ Passive nodes can only pass on received telegrams. It is not
possible for them to process the information contained therein.
Definition
Application
Components
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