Siemens Simatic M7-400 Reference Manual page 289

Technical Specifications of the SM 431; AI 8
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
Voltages, Currents, Potentials
Rated load voltage L+
Constant measured current for
resistance-type sensor
Isolation
•
Between channels and
backplane bus
•
Between the channels
Permitted potential difference
•
Between inputs and M
ANA
(U )
CM
•
Between the inputs (E
CM
•
Between M and
ANA
M (U )
internal ISO
Insulation tested with
•
Between bus and analog
section
•
Between bus and chassis
ground
•
Between analog section
and chassis ground
Current consumption
•
From the backplane bus
Power dissipation of the
module
Analog Value Generation
Measuring principle
Integration time/conversion
time/resolution (per channel)
•
Parameters can be
assigned
•
Interference voltage
suppression f1 in Hz
•
Integration time in
milliseconds
•
Basic conversion time in
ms
•
Resolution including sign
Smoothing of the measured
values
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
As of STEP 7 V 2.0
25 290 210
Approx. 500 g
8
4
max. 200 m
Not required
Typ. 1.67 mA
Yes
No
30 VAC
) 30 VAC
75 VDC / 60 VAC
2120 VDC
500 VDC
2120 VDC
Max. 350 mA
Typ. 1.8 W
Integrative
(Does not go into the
response time)
Yes
60/50
16.7/20
23/25
13/13 Bit
Not possible
13 Bit
Basic execution time of the
module, in ms (all channels
enabled)
Suppression of Interference, Limits of Error
Interference voltage suppression for f = nx (f1 "1%),
(f1 = interference frequency) n = 1, 2, ...
•
Common-mode
interference
(U < 30 V)
CM
•
Series-mode interference
(peak value of
interference < rated value
of input range)
Crosstalk between the inputs
Operational limit (in the entire temperature range, with
reference to the input range)
•
Voltage input
" 1 V
–
" 10 V
–
– 1 V to 5 V
•
Current input
" 20 mA
–
– 4 mA to 20 mA
•
Resistance measurement
0 to 500 W; four conductor
measurement (in the range
of 600W)
Basic error (operational limit at 25
range)
•
Voltage input
" 1 V
–
" 10 V
–
– 1 V to 5 V
•
Current input
" 20 mA
–
– 4 mA to 20 mA
•
Resistance measurement
0 to 500 W; four conductor
measurement (in the range
of 600W)
Temperature error with reference to the input range
•
In the resistance
measurement range
•
In all the other
measurement ranges
Linearity error (with reference
to the input range)
Repeat accuracy (in the steady
°
state at 25 C, referred to the
input range)
Analog Modules
184/200
> 100 dB
> 40 dB
> 50 dB
" 1.0%
" 0.6%
" 0.7%
" 1.0%
" 1.0%
" 1.25%
°
5C, referred to input
" 0.7%
" 0.4%
" 0.5%
" 0.7%
" 0.7%
" 0.8%
" 0.02% K
" 0.007% K
" 0.05% K
" 0.1%
5-73