Siemens SIMATIC ET 200S Manual page 431

Analog value generation
Measuring principle
Integration and cycle time/
resolution per channel:
•
Integration time
parameterizable
•
Interference frequency
suppression in Hz
•
Integration time in
milliseconds
•
Conversion time in ms
•
Cycle time in ms
• Resolution (including
overrange)
Suppression of interference, limits of error
Interference voltage sup-
pression for f = n x (f1
$ 1%), (f1 = interference
frequency)
•
Common-mode
interference (U )
pp
• Series-mode
interference
(peak interference
value < rated value of
input range)
• Crosstalk between the
inputs
Operational limit
(entire temperature range
with reference to 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)
ET 200S Distributed I/O System
EWA-4NEB780602402-09
Integrative
Yes
60 50
16.7 20
55 65
Number of active
channels per
module

conversion time
10 V/13 bits +
$
sign
5 V/13 bits + sign
$
1 to 5 V/13 bits
Min. 90 dB
Min. 70 dB
Min. –50 dB
" 0.6 %
"0.4%
"0.01%/K
"0.01%
"0.05 %
Analog Electronic Modules
Data for selecting a sensor
Input range (rated
value)/input resistance
•
Voltage
Permitted input voltage
(destruction limit)
Smoothing of the measured
values
Step
None
Weak
Medium
Strong
"5 V/min. 100 kW
1 to 5 V/min. 100 kW
"10 V/min. 100 kW
35 V continuous,
75 V for max. 1 ms
(pulse duty factor
1:20)
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
13-47