Siemens SIMATIC S7-400 Reference Manual page 306

Analog modules
5.25 Analog input module SM 431; AI 8 x 16 Bit (6ES7431-7KF00-0AB0)
Technical specifications for SM 431; AI 8 x 16 bit
Dimensions W x H x D (in mm)
Weight
Number of inputs
Cable length
● Shielded
Electrical isolation
● Between channels and backplane bus
● Between channels
In groups of
Permissible potential difference
● between the inputs (U
● Between M
Insulation tested at
Current consumption
● From backplane bus (5 V)
Module power loss
Measuring principle
Integration time/conversion time/resolution (per chan‐
nel)
● Configurable
● Integration time in ms
● Basic conversion time in ms
● Resolution, including sign
● Interference voltage suppression
● for interfering frequency f1 in Hz
● Measured value smoothing
● Basic response time of the module (all channels
Noise suppression for f = nx(fl ± 1%), (f1 = interfering frequency) n = 1, 2, ...
● Common mode interference (U
Current, thermocouple and voltage ranges < 2.5 V
Voltage ranges ≥2.5 V
Crosstalk between inputs (U
Current, thermocouple and voltage ranges ≥ 2.5 V
Voltage range ≥ 2.5 V
● Series-mode interference (peak value of
306
)
CM
and M (U
ANA intern
enabled)
cm
interference < rated value of input range)
Dimensions and weight
Module-specific data
Voltage, current and potential
)
ISO
Formation of analog values
Noise suppression, error limits
< 120 V)
cm
< 120 V)
Reference Manual, Ausgabe 11/2016, A5E00850736-08
25 x 290 x 210
ca. 650 g
8
200 m
Yes
Yes
1
60 V DC/30 V AC (SELV)
60 V DC/30 V AC (SELV)
1500 V DC
max. 1200 mA
typical 4.6 W
Integrating
Yes
2.5 16.7 20 100
10 16.7 20 100
16 bits
400 60 50 10
Parameters can be assigned in 4 stages
40 67 80 400
> 120 dB
> 95 dB
> 120 dB
> 95 dB
> 80 dB
S7-400 Automation System Module Data