Siemens SIMATIC S7-400 Reference Manual page 285

Parameters
● Measuring method
● Measuring range
● Reference temperature
● Noise suppression
● Smoothing
● Reference junction
If you use the module in ER-1/ER-2, you must set this parameter to "No" because the interrupt lines are not available in
1
ER-1/ER-2.
Only in the CR (central rack) is it possible to start up the analog modules with the default settings.
2
A point to note about channels for hardware interrupts with the end of scan cycle trigger
You can configure hardware interrupts for the end of scan cycle for one of the 16 channels
because the module can only trigger these interrupts on one channel.
Measured value smoothing
You will find information that is generally applicable to the smoothing of analog values in the
respective section.
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
5.23 Analog input module SM 431; AI 16 x 16 Bit (6ES7431-7QH00-0AB0)
Value range
Disabled
U Voltage
4DMU Current
(4-wire transducer)
2DMU Current
(2-wire transducer)
R-4L Resistance
(4-conductor connec‐
tion)
R-3L Resistance
(3-conductor connec‐
tion)
RTD-4L Thermal resistance
(linear, 4-wire connec‐
tion)
RTD-3L Thermal resistance (lin‐
ear,
3-conductor connection)
TC-L Thermocouple (linear)
For information on configurable meas‐
uring ranges of input channels, refer to
the section "Measuring methods and
measuring ranges of SM 431; Ai 16x16
Bit".
- 273.15 to 327.67 C
o
400 Hz; 60 Hz; 50 Hz
None
Weak
Medium
Strong
None
RTD on Channel 0
Reference temperature value
Default Parameter
2
type
U Static
±10 V
0,00 C Dynamic
o
50 Hz
None
None
Analog modules
Scope
Channel
Module
285