Communication / SIMOLINK 12.2010
6SE7087-6QX70 (Version AM) Siemens AG
8.3-18 Compendium Motion Control SIMOVERT MASTERDRIVES
8.3.8 Synchronization diagnostics (MC only)
The following diagnostics information is available to the user:
♦ B0043: Drive synchronism
Bit = 1 indicates that the drive is running is synchronism.
Bit = 0 indicates that the drive is not yet running is synchronism or
cannot be synchronized. This status is also signaled by alert A003.
♦ r748 Index 9: Synchronism deviation
The value should vary between -20 (= 65515) and 20, if
synchronization is functioning. A stable value of 65535 indicates that
synchronization is turned off because the pulse frequency (P340)
and the SLB cycle time do not go together.
♦ r748 Index 11: T0 counter
The value should always be 0 when synchronization is functioning.
8.3.9 Switchover of the synchronization source (MC only)
MASTERDRIVES MC devices provide the option of plugging in and
parameterizing two SIMOLINK modules and two CBP2s. Because of
the physical situation, synchronization on only one of the
communication modules and data transfer from only one of the two
SIMOLINK modules is possible. Connecting up a second SIMOLINK
ring would not therefore enable transfer of more data. The only possible
applications are installations in which different machine configurations
with different SIMOLINK-ring nodes are desired or necessary or where
redundancy of the SIMOLINK rings is desired or necessary.
♦ P744: SLB selection (dispatcher and transceiver)
BICO parameter, Index 1, is for selecting a source (binector) by
means of which the active SIMOLINK (synchronization and data
source) is defined when two SIMOLINK boards are present in a
MASTERDRIVES unit.
By means of Index 2, the Profibus can be selected as the
synchronization source. A SIMOLINK, if present, can no longer be
used to transfer data; it only works as a transmitter in order to
maintain telegram traffic in the SLB ring.
The synchronization source is selected according to the following
scheme:
744.1 744.2
SLB1 (lower slot) active 0 0
SLB2 (higher slot) active 1 0
CBP active x 1
Binectors
Parameters
Parameter
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