Siemens CPU 31 Series Technical Data Manual page 162

Technical data of CPU 31xC
6.6 Technical data of the integrated I/O
Technical data
Interference suppression, error limits
Interference voltage suppression for f = nx (f1 ± 1 %), (f1 = interference
frequency), n = 1, 2
Commonmode interference (U
•
Feedback interference (peak value of the interference < rated value of
•
the input range)
Crosstalk between the inputs
Operational error limits (across the temperature range, in relation to input
range)
Voltage/current
•
Resistance
•
Basic error limit (operational limit at 25 °C, in relation to input range)
Voltage/current
•
Linearity error during measurement of current and voltage
–
(related to input range)
Existence
•
Linearity error during resistance measurement
–
(related to input range)
Temperature error (in relation to input range)
Repeat accuracy (in transient state at 25 °C, in relation to input range)
Status, interrupts, diagnostics
Interrupts
Diagnostics functions
Encoder selection data
Input ranges (rated value)/input resistance
Voltage
•
Current
•
Existence
•
Resistance thermometer
•
Permitted continuous input voltage (destruction limit)
For voltage inputs
•
For current inputs
•
Permitted continuous input current (destruction limit)
For voltage inputs
•
For current inputs
•
6-50
< 1.0 V)
CM
> 40 dB
> 30 dB
> 60 dB
< 1 %
< 5 %
< 0,7 %
± 0,06 %
< 3 %
± 0,2 %
± 0,006 %/K
± 0,06 %
no interrupts when operated as standard
•
I/O
no diagnostics when operated as
•
standard I/O
For using technological functions, please
•
refer to the Technological Functions
Manual.
± 10 V/100 kΩ
0 V to 10 V/100 kΩ
± 20 mA/50 Ω
0 mA to 20 mA/50 Ω
4 mA to 20 mA/50 Ω
0 Ω to 600 Ω/10 MΩ
Pt 100/10 MΩ
Max. 30 V
Max. 2.5 V
Max. 0,5 mA;
Max. 50 mA;
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06