Siemens Simatic M7-400 Reference Manual page 330

Analog Modules
5.22.1 Commissioning the SM 431; AI 16
You set the mode of operation of the SM 431; AI 16
measuring range modules on the module and in STEP 7.
Measuring Range Module
A measuring range module of the module matches two channels and one
resistance channel to each type of sensor. If necessary, the measuring range
modules must be replugged to change the measuring method and the measuring
range. The steps you have to perform to do this are described in detail in
Section 5.4.
The corresponding table in Section 5.22.2 tells you which assignment you have to
select for which measuring method and measuring range. In addition, the
necessary settings are embossed on the module.
Parameters
You will find a description of the general procedure for assigning parameters to
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.
Table 5-64 Parameters of the SM 431; AI 16
Parameter
Enable
•
1)
Diagnostic interrupt
•
1)
Hardware interrupt
•
Destination CPU for
interrupt
Trigger for hardware
interrupt
•
End of scan cycle
reached at input
•
High limit
•
Low limit
Diagnostics
•
Wire break
•
Reference channel
error
•
Underflow
•
Overflow
•
Short circuit to M
5-114
16 Bit
Value Range
Yes/no
Yes/no
1 to 4
Yes/no
32511 to – 32512
– 32512 to 32511
Yes/no
Yes/no
Yes/no
Yes/no
Yes/no
S7-400, M7-400 Programmable Controllers Module Specifications
16 Bit
16 Bit by means of
2)
Default Parameter
Type
No Dynamic
No
–
Static
No Static
– Dynamic
No
No
No Static
No
No
A5E00069467-07
Scope
Module
Module
Channel
Channel
Channel