Siemens ET 200S Manual page 461

Analog Value Generation
Measuring principle
Integration and cycle time/
resolution per channel:
S
Integration time
parameterizable
S
Interference frequency
suppression in Hz
S
Integration time in
milliseconds
S
Conversion time in ms
S
Cycle time in ms
S
Resolution (including
overrange)
Suppression of Interference, Limits of Error
Interference voltage sup-
pression for f = n x
(f1"1%), (f1 = interference
frequency)
S
Common-mode
interference (U )
pp
S
Series-mode
interference
(peak interference
value < rated value of
input range)
Crosstalk between the in-
puts
Operational limit (in the en-
tire temperature range, with
reference to the input
range)
Basic error limit (operational
limit at 25_C with reference
to input range)
Temperature error (with re-
ference to the input range)
Linearity error (with refe-
rence to the input range)
Repeatability
(in steady state at 25_C
with reference to input
range)
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Integrative Input range (rated
value)/input resistance
S
Yes
S
60 50
Permitted input voltage
16.7 20
(destruction limit)
Connection of the sensors
110 130
S
Number of active
channels per

module
conversion time
Pt100, Ni100/
15 bits + sign
150Ω/14 bits/
300Ω, 600Ω/15 bits
Characteristic curve lineari-
zation
Smoothing of the measured
values
Min. 90 dB
Min. 70 dB
Min. –50 dB
"0.6%
"0.4%
"0.005%/K
"0.01%
"0.05%
Analog Electronic Modules
Data for Selecting a Sensor
Resistance-type sensor
Resistance
thermometers
For measuring
resistance
– Two and
three-conductor
connection
– Four-conductor
connection
Step
None
Weak
Medium
Strong
150 Ω/min. 2 MΩ
300 Ω/min. 2 MΩ
600 Ω/min. 2 MΩ
Pt100/min. 2 MΩ
Ni100/min. 2 MΩ
Max. 9 V
Yes, line resistances
are also measured,
jumpers at T
R
Yes
Yes, parameters can
be assigned for
Pt100, Ni100
Yes, parameteriza-
ble in 4 steps by
means of digital filte-
ring
Time constant
1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time
12-105