Siemens AlgoRex CS1140 Planning page 26

Outline quantities of C bus participants
select station with
higher capacity,
use an additional
power supply or an
additional station
consumption of
I-Bus-modules
no
< X ?
yes
the capacity of the main
CPU is checked
26
Building Technologies
Fire Safety & Security Products
Limitation due to 5V power consumption
All I bus components are supplied with 24 V and 5 V. The power available for the 5 V supply is limited
after the CPU:
'Main CPU'
E3X10x
B3Q... / E3C011
'5 V power consumption of I bus components' table
I bus component Power consumption
E3M060
E3M071
E3M080
E3M111
E3M171
E3M120
E3L020
E3L030
E3G050
E3H021**
* Is not an I bus component but is also supplied by the 'CPU'
** Is supplied via 24 V.
The limit values for the operating unit (CT/CI), gateway (CK) and additional

AlgoWorks programs must also be checked!
I bus component
after 'CPU'
34mA E3G060
34mA E3G070
55mA E3G080
25mA E3C011
45mA B3Q321
65mA E3I020*
10mA E3I040
35mA K3I090*
8mA E3M141
–
Power available
1,100mA
250mA
Power consumption
after 'CPU'
10mA
10mA
35mA
12mA
8mA
100mA
70mA
1mA
5mA
008725_h_en_--
06.2011