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Electrical isolation
•
Between channels and backplane bus
•
Between the channels
•
Between channels and load voltage
(powerbus)
•
Between load voltage (powerbus) and
backplane bus
Permitted potential difference
•
between the inputs (U
Insulation tested with
Current consumption
•
from load voltage L+ (powerbus)
Power loss of the module
Measurement principle
Integration / conversion time / resolution
(per channel)
•
Integration time selectable
•
Interference frequency suppression in
Hz
•
Integration time in ms
•
Basic conversion time including
integration time (per channel) in ms
•
Additional conversion time for wire break
monitoring in ms
•
Resolution (incl. over-range)
Smoothing of measured values
Interference voltage suppression for f = n x
(f1 ± 1 %), (f1 = interference frequency)
•
Common-mode interference (U
V)
•
Normal-mode interference (peak value
of the interference < nominal value of
the input range)
Crosstalk between the inputs
Operational limits (in the entire temperature
range, relative to the input range)
ET 200iS Distributed I/O Station
A5E00087831-02
Voltages, Currents, Potentials
yes
yes, functional
yes
yes
)
DC 6,5 V; AC 30 V
CM
AC 500 V
typ. 70 mA
typ. 0.84 W
Analog Value Formation
integrating (Sigma-Delta)
yes
60; 50
66; 80
min. 66; min. 80
5
15 bits + sign
yes, selectable in 4 levels:
Level
none
weak
medium
strong
Interference Suppression, Error Limits
< 60
min. 90 dB
CM
min. 70 dB
min. -50 dB
± 1.5 K
Analog Electronics Modules
Time constant
1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time
14-59
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