Siemens SIMATIC - Page 311

Analog modules
6.3 Analog input module SM 331; AI 8 x 16 bit; (6ES7331-7NF00-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
311
Technical specifications
Technical specifications
Dimensions and weight
Dimensions W x H x D (mm) 40 x 125 x 117
Weight
ca. 272 g
Module-specific data
Supports parameter reassignment in RUN
Yes
Response of non-configured inputs Return the process value which was valid before config-
uration
Supports isochronous mode
no
Number of inputs
8
Cable length
• shielded
max. 200 m
Voltages, currents, electrical potentials
Electrical isolation
• between channels and the backplane bus
yes
Maximum potential difference
• between inputs (CMV)
35 V AC / 50 V DC,
Isolation test voltage
500 V DC
Current consumption
• from the backplane bus
max. 130 mA
Power loss of the module
typ. 0.6 W
Generation of analog values
Measuring principle
Integrating
Integration/conversion time/resolution (per channel)
• programmable
yes
• Integration time in ms
10 16.7 20 100
• Basic conversion time for each group with more than one
active channel
35 55 65 305
• Channel conversion time for each group, only with active
channel group 0 or 1
10 16.7 20 100
Channel integration time (1/f1) in ms
10
16.7
20
100
• Resolution (including overshoot range)
15 bits + sign
• Interference frequency suppression at interference frequen-
cy f1 in Hz
100 60 50 10
Basic execution time of the module in ms (all channels enabled)
140
220
260
1220