Siemens SIMATIC S7-300 Reference Manual page 333
Programmable logic controllers module data
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Also See for SIMATIC S7-300:
- Manual (676 pages) ,
- Installation and operating manual (356 pages) ,
- Hardware and installation manual (256 pages)
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Technical specifications of the SM 331; AI 8 x RTD
Dimensions and Weight
Dimensions W x H x D
(in millimeters)
Weight
Data for Specific Module
Supports clocked
operation
Number of inputs
Length of cable
•
Shielded
Voltages, Currents, Potentials
Power rated voltage of the
electronics L+
•
Reverse polarity protection
Constant measured current for
resistance-type sensor
Isolation
•
Between channels and
backplane bus
•
Between channels and
power supply of the
electronics
•
Between the channels
In groups of
Permitted potential difference
•
Between the inputs (U
•
Between M
and
ANA
M
(U
)
internal
ISO
Insulation tested with
Current consumption
•
From the backplane bus
•
From the power supply L+
Power dissipation of the module typ. 4.6 W
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
40 x 125 x 117
Approx. 272 g
No
8
max. 200 m
24 VDC
Yes
max. 5 mA
Yes
Yes
Yes
2
)
75 VDC / 60 VAC
CM
75 VDC / 60 VAC
500 VDC
max. 100 mA
max. 240 mA
Analog value generation
Measuring principle
Module filtering mode
Integration/conversion time/
resolution (per channel)
•
Programmable
•
Basic conversion time in
ms
•
Additional conversion time
for measuring resistance,
in ms
•
Additional conversion time
for open-circuit monitoring,
in ms
•
Resolution including sign
•
Noise suppression
for interference frequency
f1 in Hz
Smoothing of the measured
values
Conversion time (per channel)
Basic response time of module
(all channels enabled)
Module filtering mode
Integration/conversion time/
resolution (per channel)
•
Programmable
•
Basic conversion time in
ms
•
Additional conversion time
for measuring resistance,
in ms
•
Additional conversion time
for open-circuit monitoring,
in ms
•
Resolution including sign
•
Noise suppres
sion for interference
frequency f1 in Hz
Smoothing of the measured
values
Conversion time (per channel)
Basic response time of module
(all channels enabled)
Analog Modules
Integrating
8 channels, hardware
Yes
80
185*
100
16 bits
400 / 60 / 50
None / low/
average/ high
100 ms
200 ms
8 channels, software
Yes
8 / 25 / 30
45 / 79 / 89*
20 / 37 / 42
16 bits
400 / 60 / 50
None / low/
average/ high
20 / 37 / 42 ms
40 / 79 / 84 ms
4-127
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