Analog Electronic Modules
12-137
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Block Diagram
Backplane bus
ET 200S
backplane bus
interface
module
DAC
24 V
L+
1M
DAC
1
3
M
ANA
5
7
M
ANA
M
ANA
P1
P2
Figure 12-22 Block Diagram of the 2AO I High Feature
Technical Specifications
Dimensions and Weight
Dimensions W H D
(mm)
15 x 81 x 52
Weight Approx. 40 g
Data for Specific Modules
Number of outputs 2
Length of cable
Shielded Max. 200 m
Voltage, Currents, Potentials
Rated supply voltage of the
electronics L+
24 VDC
Reverse polarity
protection
Yes
Isolation
Between the channels
and backplane bus
Yes
Between channels and
power supply of the
electronics
Yes
Between the channels No
Permissible potential
difference
Between M
ANA
and
M
internal
(U
ISO
)
75 VDC/60 VAC
Insulation tested 500 VDC
Current consumption
From the power supply
L+
Max. 150 mA
Power dissipation of the
module
Max. 2 W
Status, Interrupts, Diagnostics
Diagnostic functions
Group error display Red “SF” LED
Diagnostic information
readable
Yes
Monitoring for
Wire break I > 13 V
Substitute values can be
applied
Yes, parameters can
be assigned
Analog Value Generation
Resolution (including sign) 20 mA/16 bits
4 to 20 mA/15 bits
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