12-25
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
Analog value formation
Measurement principle
integrative
Integration and conversion time/
resolution per channel
Parameterized
Integration time in ms
Conversion time in ms
Resolution (incl. overrange/
representation in two’s com-
plement)
–
"
20 mA
–
4...20 mA
yes
50
55
13 bits
12 bits
60
65
Sensor Selection Data
Input ranges (rated values)/input
resistance
Permissible input current
For current input
(destruction limit)
"
20 mA/50
W
4...20 mA/50
W
40 mA, permanent
Connection of sensors
For voltage measurement
–
As 2-wire measuring
transducer
–
As 4-wire measuring
transducer
Characteristic curve linearization
Temperature compensation
Smoothing of measured values
Step
None
Weak
Medium
Strong
possible; with exter-
nal measuring trans-
ducer feed
possible
no
no
yes; set by parame-
ters in 4 steps by
digital filtering
Time constant
1x cycle time
8x cycle time
64x cycle time
128x cycle time
SC Analog Electronic Modules – Technical Data