8-43
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
Analog Input Module 4
"
50 mV
(6ES5 464–8MA21)
Compensa
tion box
Terminal
box
pr93a041
Technical Specifications
Address identifier for ET 200U
DP Siemens
DP Standard
4AI or 015
2AI or 013
1AI or 012
4AI or 083
2AI or 081
1AI or 080
Input range
(rated value)
"
50 mV
Number of inputs
1, 2 or 4
(selectable)
Galvanic isolation
yes (inputs to ground–
ing point; not between
inputs)
Input resistance
w
10 M
Connection method of sensors
two–wire connection
Digital representation of input
signal
12 bits + sign
(2048 units = rated
value)
Measured value representation two’s complement
(left–justified)
Measuring principle
integrating
Conversion principle
voltage–time conver-
sion (dual slope)
Integration time
(adjustable for optimum noise
suppression)
20 ms at 50 Hz
16.6 ms at 60 Hz
Encoding time per input
for 2048 units
for 4095 units
max. 60 ms at 50 Hz
max. 50 ms at 60 Hz
max. 80 ms at 50 Hz
max. 66.6 ms at 60 Hz
Permissible voltage difference
between inputs
between inputs and central
ground point
"
1 V
max. 75 V DC /
60 V AC
Permissible input voltage
(destruction limit)
max. 24 V DC
Module Spectrum