Siemens SIMATIC ET 200S - Block Diagram of the 2 AI U High Feature

Analog Electronic Modules
12-48
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Block diagram
ADC
24V
L+
1M
1
2
5
6
P1
P2
MUX
M
ANA
Backplane bus
ET 200S
backplane bus
interface
connection
Figure 12-8 Block diagram of the 2AI U High Feature
Technical data
Dimensions and weight
Dimensions W x H x D
(mm)
15 x 81 x 52
Weight Approx. 40 g
Module-specific data
Supports clock
synchronized mode
No
Number of inputs 2
Cable length
• shielded max. 200 m (164 ft)
Voltages, currents, electrical potentials
Rated load voltage L+ (from
power module)
24 VDC
• Polarity reversal
protection
Yes
Electrical isolation
• Between the channels
and backplane bus
Yes
• Between the channels
and load voltage L+
• Between the channels
and PE
Yes
Yes
• Between the channels No
Permitted potential
difference
• Between the channels 140 VDC/100 VAC
Isolation tested 500 VDC
Current consumption
• with load voltage L+ max . 5 3 mA
Power loss of the module Typical 0.85 W
Status, interrupts, diagnostics
Diagnostic functions
• Group error red LED ”SF”
• Diagnostic function can
be read (wire-break
diagnostics not
supported in this
module)
Yes