Siemens ET 200S Manual page 433

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
– 1 channel active per
module
– 2 channels active
per module
S
Resolution (including
overrange)
Suppression of Interference, Limits of Error
Interference frequency
suppression for f =
n x (f1  0.5%),
(f1 = interference
frequency)
S
Common-mode
interference (U )
pp
S
Series-mode
interference
(peak interference
value < rated value of
input range)
S
Crosstalk between the
inputs
Operational limit
(entire temperature range
with reference to input
range; calibration enabled
Operational limit
(entire temperature range
with reference to input
range; calibration disabled)
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Integrative
Yes
60 50 No
16.7 20 2.5
25 30 10
25 30 10
58.3 70 26
"10 V/ 15 bits
+sign
"5 V/ 15 bits + sign
1 to 5 V/ 15 bits
Min. 100 dB
Min. 90 dB
Min. –100 dB
"0.1%
1
)
"0.5%
Analog Electronic Modules
Basic error limit (operational
limit at 25_C with reference
to input range; calibration
1
enabled )
Temperature error (with
reference to input range;
1
calibration enabled )
Temperature error (with
reference to input range;
calibration disabled)
Linearity error (with
reference to the input
range)
Repeatability
(in steady state at 25 _C
with reference to input
range)
Data for Selecting a Sensor
Input range (rated
value)/input resistance
S
Voltage
Permitted input voltage
(destruction limit)
Smoothing of the measured
values
Step
None
Weak
Medium
Strong
1
Run-time calibration can be enabled at module
parameter assignment to adjust for component
drift due to changes in ambient temperature.
During the calibration interval, new data
updates will be delayed for 250 ms. Calibration
takes place every time there is a 5°C change
in ambient temperature.
"0.05%
"0.003%/K
"0.015%/K
"0.03%
"0.01%
"10 V/min. 1 MΩ
"5 V/min. 1 MΩ
1 to 5 V/min. 1 MΩ
35 V continuous,
75 V for max. 1 ms
Yes,
parameterizable in 4
steps by means of
digital filtering
Time constant
1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time
12-77