System manual CECX / Power supply of modules
5.3 Example power calculation
Calculation of the power input required for the following instrumentation.
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
UREF
GND
GND
GND
+
-
AI0
+
-
AI1
+
-
AI2
+
-
AI3
AO0
AO1
GND
AO2
AO3
GND
Pxxxxx-xxxxx
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
0V
+24V
DO0
DO1
DO2
DO3
DO4
DO5
DO6
DO7
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
Pxxxxx-xxxxx
SI
0
0V
+24V
CA
N0
RX
TX
USB
ETH
CAN1
SI1
C
O
M
P
A
C
T FL
A
S
H
PW
R
CT
RL
DI
A
G
Pxxxxx-xxxxx
ETHERNET
SI
1
CA
N1
RX
TX
Power supply
of control
5.3.1 Calculation of the load
The following table lists the power required from the CPU module (called
CPU for short in the following) for the option modules and the add-on mod-
ules. The CPU itself has a consumption of 14 W.
5 V sided / [W]
24 V sided / [W]
Comment
CPU module
10
45
Source (this power the CPU
module can provide on the
K-Bus)
Option module 1
0.25
0
Sink
Option module 2
0.25
0
Sink
Option module 3
0.5
0
Sink
Output module
0.4
1
Sink
Analog module
0.3
3.3
Sink
Subtotal 1.7
4.3
Subtotal of the option mod-
ules and the add-on mod-
ules.
The power consumption determined in the subtotal is less than the power
that could be made available by the CPU.
This calculation check is required especially when many add-on modules
are to be operated together with a CPU.
5.3.2 Power supply design
The power supply unit must be designed for:
the power requirement of the CPU, the option modules, the add-on
modules and
the power required for all other connected loads (e.g. outputs that are
supplied by the module).
Power requirement for CPU + m assemblies =
14 + 1.7 + 4.3 =
20 W
.
CECX-II 5-3
Summary of Contents for CECX-X-C1 Series
Page 1: ...Manual Controller Modular CECX CECX X C1 CECX X M1 761886 1112c en ...
Page 2: ...1112c en ...
Page 4: ......
Page 6: ...1112c en ...
Page 7: ...CECX modular control system CECX modular control system ...
Page 46: ...CECX modular control system CECX I 38 ...
Page 47: ...System manual CECX ...
Page 48: ...CECX II ...
Page 56: ...Content System Manual CECX VIII ...
Page 58: ...System manual CECX Product design CECX II 0 2 ...
Page 68: ...System manual CECX Safety notes CECX II 2 6 ...
Page 76: ...System manual CECX System overview CECX II 3 8 ...
Page 84: ...System manual CECX General assembly and installation instructions CECX II 4 8 ...
Page 118: ...System manual CECX Operating behavior CECX II 8 6 ...
Page 122: ...System manual CECX Disposal CECX II 10 2 ...
Page 124: ...System manual CECX Technical data CECX II 11 2 ...
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Page 500: ...System manual CECX Bus link module CECX B CO CECX II 34 64 ...
Page 501: ...The library Ethernet lib The library Ethernet lib ...
Page 505: ...The library EventData lib The library EventData lib ...
Page 511: ...The library IncEnc lib The library IncEnc lib ...
Page 517: ...The Festo_EasyIP lib library ...
Page 532: ......
Page 535: ...The library PLCService lib The library PLCService lib ...
Page 542: ...The library PLCService lib CECX VII 6 ...
Page 543: ...The library SysLibComEx lib The library SysLibComEx lib ...
Page 547: ...The Festo_Motion lib library ...
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Page 585: ...The Festo_PartDetector lib library ...
Page 601: ...FED VipWin interface ...
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