Siemens Cerberus CS1140 - Main CPU Limits (CI;CC)

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Fire & Security Products
Siemens Building Technologies Group
05.2003
7.1 Main CPU limits (CI/CC)
The limits within the station types are given by
hard- and software.
Verify all given limits for each required station
by going through this flow chart
7.1.1 Maximum number of devices (RAM) per station
For the stationtypes CI1142, CC1142, CC1143, this limit is depending on the setup of the
logical structure.
The following graph allows to find this limit depending on the estimated average number
of ELEMENTS per ZONE.
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Example:
average of 3 ELEMENTS per ZONE
Result: max. 3000 devices
Max. number of devices
ELEMENTS per ZONE (average)
CC1143
CC1142
300
600
200
! Do not go to the limits !
plan reserves for:
– Project changes
– Site expansions
– Upgrade to future versions
CI1142 (B3Q460/480/670)
Example:
average of 5 ELEMENTS per ZONE
configured in control unit: 300 devices
free memory: 600 devices (-200 spare)
(use of this value see chapter 7.2.1)
CI1142 (B3Q660/680/685)
i
Important:
Above values correspond to the ones already given for EP5.
However, for the following configurations, these limits must be reduced further.
Number of ZONES per SECTION (average) < 3 CI1142: –15%
CC1142: –
CC1143: –
Use of ELEMENT texts CI1142: –20%
CC1142: –10%
CC1143: –10%
select station
with higher
RAM capacity or
an additional
station
no
yes
number
of devices
< X ?