Communications support modules
Hardware - SIMADYN D
6-15
Edition 12.2004
6
6.3 Fiber-optic cable subrack coupling CS12-CS22
CS12:
6DD1660-0BC0
CS13:
6DD1660-0BB0
CS14:
6DD1660-0BA0
CS22:
6DD1660-0BD0
An extremely fast coupling can be established between as many
subracks
as required via
fiber-optic cable
using the CS12 modules (or CS13, CS14)
and CS22.
A fiber-optic coupling consists of a master module, to which 1 to max. 8
slave modules can be connected. All of the master- and slave modules are
accommodated in a dedicated subrack.
The coupling practically represents an extension of the backplane bus,
whereby data transfer is realized via the RAM memory on the CS12. All of
the connected CS22 slave modules can access this; they all have the same
priority.
CS13 and CS14 consist of a CS12- and one or two ICS1 modules, which
have fiber-optic cable connections for up to 4 or 8 slaves.
•
max. fiber-optic cable
length
of a point-to-point connection:
200 m
•
data transfer time
:
approx. 5 µs each 16-bit value for a L/C bus under normal load
conditions
max. approx. 32 µs per 16-bit value for an L/C bus under extremely high
load conditions
•
128 kbyte RAM memory on CS12
•
a master module can transfer the following signals to the slave:
−
basic sampling time (to synchronize the slave)
−
alarm interrupt (to call an interrupt task)
−
clock interrupt (to set the real-time clock)
•
L- and C bus connections;
•
not intended for use in the SR6(V), as data transfer is only realized via
the C bus
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