Siemens S7-400 ユーザーズマニュアル

5-114

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

  

You set the mode of operation of the SM 431; AI 16 

 

 16 Bit by means of

measuring range modules on the module and in STEP 7.

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.

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 

 

 16 Bit 

Enable

•

Diagnostic interrupt

•

Hardware interrupt

Yes/no
Yes/no

No
No

Dynamic

Module

•

Destination CPU for
interrupt

1 to 4

–

Static

Module

Trigger for hardware
interrupt

•

End of scan cycle
reached at input

Yes/no

No

Static

Channel

•

High limit

•

Low limit

32511 to – 32512

– 32512 to 32511

–

Dynamic

Channel

Diagnostics

•

Wire break

•

Reference channel
error

•

Underflow

•

Overflow

•

Short circuit to M

Yes/no
Yes/no
Yes/no
Yes/no
Yes/no

No
No
No
No
No

Static

Channel