Siemens Simatic M7-400 Reference Manual page 326

Analog Modules
Technical Specifications of the SM 431; AI 16
Programming package
Associated programming
package
Dimensions and Weight
Dimensions W H D
(in millimeters)
Weight
Data for Specific Module
Number of inputs
•
For resistance-type sensor
Length of cable
•
Shielded
in the input ranges x 80
mV and with
thermocouples
Voltages, Currents, Potentials
Rated load voltage L+
•
Reverse polarity protection
Power supply of the
transmitters
•
Supply current
•
Short-circuit proof
Constant measured current for
resistance-type sensor
Isolation
•
Between channels and
backplane bus
•
Between the channels
•
Between channels and
load voltage L+
Permitted potential difference
•
Between inputs and M
ANA
(U )
CM
•
Between the inputs (E )
CM
•
Between M and
ANA
M (U )
internal ISO
5-110
Insulation tested with
•
As of STEP 7 V 2.0
•
•
25 290 210
•
Approx. 500 g
•
16
•
8
Current consumption
Max. 200 m
•
Max. 50 m
•
24 VDC (only required
Power dissipation of the
for the supply of
module
two-wire transmitters)
Yes
Measuring principle
Integration time/conversion
time/resolution (per channel)
Max. 50 mA
•
Yes
Typ. 1.67 mA
•
•
Yes
•
No
•
Yes
•
120 VAC
•
120 VAC
75 VDC/60 VAC
•
Smoothing of the measured
values
Basic execution time of the
module, in ms (all channels
enabled)
S7-400, M7-400 Programmable Controllers Module Specifications
16 Bit
Between bus and L+/M 2120 VDC
Between bus and analog
section 2120 VDC
Between bus and chassis 500 VDC
ground
Between analog section 707 VDC
and L+/M
Between analog section 2120 VDC
and chassis ground
Between L+/M and chassis 2120 VDC
ground
From the backplane bus Max. 700 mA
From load voltage L+ Max. 400 mA
(with 16 connected, fully
controlled two-wire
transmitters)
Typ. 4.5 W
Analog Value Generation
Integrative
(Does not go into the
response time)
Parameters can be Yes
assigned
Interference voltage 400/60/50
suppression f1 in Hz
Integration time in ms 2.5/16.7/20
Basic conversion time in 6/20.1/23.5
ms
Additional conversion time 12/40.2/47
for measuring resistance,
in ms
Additional conversion time 4.3/4.3/4.3
for open-circuit monitoring,
in ms
Additional conversion time 5.5/5.5/5.5
for measuring resistance
in ms
Resolution including sign 16/16/16 bit
Parameters can be
assigned in 4
stages
96/322/376
A5E00069467-07