Siemens SIMATIC ET 200S - Block Diagram of the 2 AO I High Feature

Analog Electronic Modules
12-113
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Block diagram
Backplane bus
ET 200S
backplane bus
interface
connection
DAC
24V
L+
1M
DAC
1
3
M
ANA
5
7
M
ANA
M
ANA
P1
P2
Figure 12-23 Block diagram of the 2AO I High Feature
Technical data
Dimensions and weight
Dimensions
WxHxD(mm)
15 x 81 x 52
Weight Approx. 40 g
Module-specific data
Supports clock
synchronized mode
Yes
Number of outputs 2
Cable length
• shielded max. 200 m (164 ft)
Voltages, currents, electrical potentials
Rated power supply of the
electronics L+
24 VDC
• Polarity reversal
protection
Yes
Electrical isolation
• Between channels and
backplane bus
Yes
• Between channels and
electronics power
supply
Yes
• Between the channels No
Permitted potential
difference
• between M
ANA
and
M
internal
(U
ISO
)
75 VDC / 60 VAC
Isolation tested 500 VDC
Current consumption
• from L+ power supply max. 150 mA
Power loss of the module max. 2 W
Status, interrupts, diagnostics
Diagnostic functions
• Group error display red LED ”SF”
• Reading of diagnostic
data
Yes
Interconnectable
substitution values
yes, configurable