Siemens SIMATIC S7-300 Manual page 254

Analog modules
6.4 Analog input module SM 331; AI 8 x 16 Bit; (6ES7331-7NF10-0AB0)
Technical data
Electrical isolation
between channels and the backplane bus
•
between channels and electronics power supply
•
between channels
•
in groups of
Permissible potential difference
between inputs (CMV)
•
Between the inputs and M
•
Isolation test voltage
Current consumption
from the backplane bus
•
from power supply L+
•
Power loss of the module
Formation of analog values
Measuring principle
Integration/conversion time/resolution (per channel)
programmable
•
Basic conversion time in ms (8-channel mode)
•
Basic conversion time in ms (4-channel mode)
•
Resolution, including sign
•
Noise suppression at frequency f1 in Hz
•
Measured value smoothing
Basic execution time of the module, in ms (8-channel-mode)
Basic execution time of the module, in ms (4-channel-mode)
Noise suppression, error limits
Noise suppression at F = n x (f1 1%)(f1 = interference frequency, n = 1, 2, ...)
Common-mode interference (VCM < AC 60 V)
•
Series mode interference (peak value of disturbance < rated
•
input range)
Crosstalk between inputs
Operational limit (across temperature range, relative to input range)
Input voltage
•
Input current
•
Basic error limit (operational error limit at 25 °C, relative to input range)
Voltage input
•
Current input
•
Temperature error (relative to input range)
Linearity error (relative to input range)
Repetition accuracy (in transient state at 25 °C, relative to input
range)
6-20
(V )
internal iso
Yes
Yes
Yes
2
60 VAC / 75 VDC
60 VAC / 75 VDC
500 VAC
max. 100 mA
max. 200 mA
typ. 3.0 W
Integrating
Yes
95/83/72/23
10
1) 4)
16 bits
All /50/60/400
2)
None / low/ average/ high
190/166/144//46
10
1)
> 100 dB
> 90 dB
3)
> 100 dB
±0,1%
±0,1%
±0,05%
±0,05%
±0.005%/K
±0,01%
±0,01%
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04