Commissioning The Sm 431; Ai 8 X 14 Bit - Siemens SIMATIC S7-400 Reference Manual
Automation system module
data
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5.21.2
Commissioning the SM 431; AI 8 x 14 Bit
Introduction
You set the mode of operation of the SM 431; AI 8 x 14 Bit by means of measuring range
modules on the module and in
Measuring range modules
A measuring range module of the module matches two channels and one resistance channel
to each type of sensor. Reposition the measuring range modules to suit the measuring method
and range. The steps you have to perform to do this are described in detail in the respective
section.
For an overview of the settings of specific measuring methods and ranges, refer to the
corresponding table in the section "Measuring methods and measuring ranges of SM 431,
AI 8 x 14 Bit". The necessary settings are also shown on the label attached to the module.
Parameters
You will find a description of the general procedure for assigning parameters to analog modules
in the respective sections.
The table below provides an overview of configurable parameters, including defaults.
Table 5-53
Parameters
Measurement
● Measuring
● Measuring range Refer to the respective section for
● Noise
● Smoothing
Only in the CR (central rack) is it possible to start up the analog modules with the default settings.
1
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.21 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)
Parameters of the SM 431; AI 8 x 14 Bit (6ES7431-1KF20-0AB0)
Value range
Disabled
method
U
4DMU
2DMU
R-4L
the measuring ranges of the input
channels that you can set.
400 Hz; 60 Hz; 50 Hz; none
suppression
None
Strong
STEP 7 .
Default
Voltage
Current (4-wire
U
sensor)
Current (2-wire
sensor)
Resistance (4-con‐
ductor connection)
± 10 V
50 Hz
None
Analog modules
Parameter
1
type
Static
Scope
Channel
259
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