Siemens AlgoRex CS1140, Planning, Page: 24 / 126

Outline quantities of C bus participants
24
Building Technologies 008725_h_en_--
Fire Safety & Security Products 06.2011
New definition of the number of devices to count:
Structure Number
of devi-
ces

D bus participants with their own D bus address (e.g. DOT1151, DO1131, DM1154,
DCW1151, DOW1171...)

FDnet participants with their own FDnet address (e.g. DOOT2x1, DO2x1, DM2x1,
DS221 ....)
1

Every used input or output of a FDnet, interactive or AnalogPLUS line module
Example: DC1157 with 3 inputs –> 6 devices
DC1154 with 1 output and 1 input for confirmation message –> 4 devices
DCI222 with 4 inputs –> 8 devices
DCIO222 with 4 outputs and 4 inputs –> 16 devices
2

Purely logical controls: Every 'Control ELEMENT' or 'Control OBJECT' that is not di-
rectly linked to a channel
2

Collective lines (e.g. 1 line of the E3M080 plug-in module) 2

Inputs of plug-in modules (e.g. E3X10x –> I4, E3L020 –> I2, K3I110 –> LONin, external
LON device –> LONin))
2

Outputs of plug-in modules (e.g. E3X10x –> Q3, E3G050 –> Q1, K3I110 –> LONout,
external LON device –> LONout)
2

Parallel displays/mimic displays (equipped with up to 384 LEDs / relays) 20
Limitation in the logical structure
The limits of the logical structure depend on the node type, the highest possible CSX
number and the maximum number of digits on the display. These limits are provided by
the system and are not dependent on the size of memory.
'Limits of logical structure' table
Maximum number
AREAS per
STATION
Maximum number
SECTIONS per
AREA
Maximum number
OBJECTS per
SECTION
Maximum number
ELEMENTS per
OBJECT
... 4 ... 255 ... 255 ... 99
International
5: ...255
Maximum number of links in control objects 4 and 6 (RAM)
1 to 16 links can be programmed to activate control object 4 or 6.
Every link needs a particular volume of RAM.
The maximum number of links is therefore limited as shown in the following diagrams.
Important:
–
If controls are produced which span several CPUs (control object 6), all links must be
counted twice: Once in the control panel from which they originated and once in the
control panel to which they are linked.
number of
nodes < X ?
reduce number
of nodes or use
an additional
station
no
yes
number of
controls < X ?
select station with
higher capacity or
use an additional
station
no
yes
Note:
–
In order to optimize the performance of your system, you must keep the number of
controls spanning several CPUs as low as possible.
–
Max. 40 controls spanning several CPUs (control object 6) are permitted per C bus.