Analog Modules

5-133

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the SM 431; AI 8 16 Bit
Dimensions and Weight
Dimensions W H D
(in millimeters) 25 290 210
Weight Approx. 650 g
Data for Specific Module
Number of inputs 8
Length of cable
Shielded 200 m
Voltages, Currents, Potentials
Isolation
Between channels and
backplane bus Yes
Between the channels Yes
Permitted potential difference
Between the inputs (UCM ) 120 VAC
Between MANA and
Minternal (UISO)120 VAC
Insulation tested with 1500 VAC
Current consumption
From the backplane bus Max. 1200 mA
Power dissipation of the
module Typ. 4.6 W
Analog Value Generation
Measuring principle Integrative
Integration time/conversion
time/resolution (per
channel)
(Does not go into the
response time)
Parameters can be
assigned Yes
Integration time in
milliseconds 2.5 16.7 20 100
Basic conversion time
including integration
time in milliseconds
10 16.7 20 100
Resolution in bits (incl.
overrange) 16 bits
Noise suppression for
frequency f1 in Hz 400 60 50 10
Basic execution time of
the module, in ms (all
channels enabled)
10 16.7 20 100
Smoothing of the measured
values Parameters can be
assigned in 4
stages
Suppression of Interference, Limits of Error
Interference voltage suppression for f = n (f1 " 1%),
(f1 = interference frequency) n= 1.2 ...
Common-mode
interference
(UCM < 2.5 V)
> 130 dB
Series-mode noise
(peak value of noise
< nominal value of input
range)
> 80 dB
Crosstalk between the
inputs > 130 dB