Siemens SIMATIC S7-400 Reference Manual page 232

Analog modules
5.19 Analog input module SM 431; AI 8 x 13 Bit (6ES7431-1KF00-0AB0)
Technical specifications for SM 431; AI 8 x 13 bit
Dimensions W x H x D (mm)
Weight
Number of inputs
● For resistance-based sensor
Cable length
● shielded
Rated load voltage L+
Constant measured current for resistance-based sen‐
sor
Electrical isolation
● Between channels and backplane bus
● Between channels
Permissible potential difference
● Between inputs and MANA (UCM)
● Between the inputs (UCM)
● Between MANA and Mintern (UISO)
Insulation tested at
● Between bus and analog section
● Between bus and chassis ground
● Between analog section and chassis ground
Current consumption
● From backplane bus (5 V)
Module power loss
Measuring principle
Integration time/conversion time/resolution (per chan‐
nel)
● Configurable
● Interference voltage suppression f1 in Hz
● Integration time in ms
● Basic conversion time in ms
● Resolution (including overrange)
Measured value smoothing
Basic execution time of the module in ms (all channels
enabled)
Interference voltage suppression for f = nx (f1 ±1%),
(f1 = interference frequency) n = 1, 2, ...
● Common mode interference (UCM < 30 V)
232
Dimensions and weight
25 x 290 x 210
ca. 500 g
Module-specific data
8
4
Maximum 200 m
Voltage, current and potential
Not required
Typ. 1.67 mA
Yes
No
30 V AC
30 V AC
60 V DC/30 V AC (SELV)
2120 V DC
500 V DC
2120 V DC
Maximum 350 mA
Typ. 1.8 W
Formation of analog values
Integrating
(Not part of the response time)
Yes
60 / 50
16.7 / 20
23 / 25
13 / 13 bit
Not possible
184 / 200
Noise suppression, error limits
> 100 dB
Reference Manual, Ausgabe 11/2016, A5E00850736-08
S7-400 Automation System Module Data