Block Diagram Of The 2Ai U Standard - Siemens SIMATIC ET 200S Manual

Analog Electronic Modules
Block diagram
ET 200S
backplane bus
interface
connection
L+
P1
P2
1M
Figure 12-7

Block diagram of the 2AI U Standard

Technical data
Dimensions and weight
Dimensions
W x H x D (mm)
Weight
Module-specific data
Supports clock synchro-
nized mode
Number of inputs
Cable length
•
shielded
Voltages, currents, electrical potentials
Rated load voltage L+
(from power module)
•
Polarity reversal
protection
Electrical isolation
•
Between channels and
backplane bus
•
Between channels and
load voltage L+
•
Between the channels
12-44
ADC
24V
M
15 x 81 x 52
Approx. 40 g
No
2
max. 200 m (164 ft)
24 VDC
Yes
Yes
Yes
No
MUX
ANA
Permitted potential differ-
ence
•
Between inputs and
M (U )
ANA CM
•
Between M and the
ANA
central ground point
(U )
ISO
Isolation tested
Current consumption
•
with load voltage L+
Power loss of the module
Status, interrupts, diagnostics
Diagnostic functions
•
Group error
•
Reading of diagnostics
functions
ET 200S Distributed I/O System
1
2
5
6
3
7
2 VAC
SS
75 VDC / 60 VAC
500 VDC
max. 30 mA
Typical 0.6 W
red LED "SF"
Yes
EWA-4NEB 780602402-12