Siemens S7-400 ユーザーズマニュアル
Analog Modules
5-126
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
5.23.1
Commissioning the SM 431; AI 8
RTD
16 Bit
You set the mode of operation of the SM 431; AI 8
RTD
16 Bit in STEP 7.
Parameters
You will find a description of the general procedure for assigning parameters to
analog modules in Section 5.7.
analog modules in Section 5.7.
An overview of the parameters that you can set and their default settings are
shown in the table below.
shown in the table below.
Table 5-71 Parameters of the SM 431; AI 8
RTD
16 Bit
Parameter
Value Range
Default
2)
Parameter
Type
Scope
Enable
•
Diagnostic interrupt
1)
•
Hardware interrupt
1)
Yes/no
Yes/no
Yes/no
No
No
No
Dynamic
Module
•
Destination CPU for
interrupt
interrupt
1 to 4
–
Static
Module
Trigger for hardware
interrupt
interrupt
3)
Dynamic
Channel
•
High limit
•
Low limit
32767 to – 32768
– 32768 to 32767
–
Dynamic
Channel
Diagnostics
•
Wire break
•
Underflow
•
Overflow
Yes/no
Yes/no
Yes/no
Yes/no
Yes/no
No
No
No
No
No
Measurement
•
Measuring type
Disabled
RTD-4L Thermal resistor
RTD-4L Thermal resistor
(linear, four-conductor
terminal)
terminal)
RTD-3L Thermal resistor
(linear, three-conductor
terminal)
terminal)
RTD-3L
Static
Channel
•
Measuring range
Refer to Section 5.23.2 for the
measuring ranges of the input
channels that you can set.
measuring ranges of the input
channels that you can set.
Pt 100
standard
standard
•
Temperature unit
Degrees Celsius; degrees
Fahrenheit
Fahrenheit
Degrees
Celsius
Celsius
Static
Module
•
Temperature
coefficient for
temperature
measurement with
thermal resistor (RTD)
coefficient for
temperature
measurement with
thermal resistor (RTD)
For platinium (Pt)
0.00385
0.00385
/
°
C
0.003916
/
°
C
0.003902
/
°
C
0.003920
/
°
C
For nickel (Ni)
0.00618
0.00618
/
°
C
0.00672
/
°
C
0.00385
Static
Channel