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Siemens Simatic S7-400 User Manual

Page 355

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Analog Modules

5-139

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07

Displaying Parameter Assignment Errors

The SM 431; AI 8

16 Bit has diagnostics capability. Below you will find an

overview of the displays that are possible for modules with parameter assignment
errors.

Table 5-76 Diagnostic Information of the SM 431; AI 8

16 Bit

Incorrect Parameter

Assignment

Possible Display

Explanation

Of the module

Module malfunction

Internal malfunction

Wrong parameters

Module not parameterized.

You can find an
explanation of the
diagnostic information in
Tables 4-8 and 5-47 on
Pages 4-10 and 5-65.

Affecting certain
channels

Module malfunction

Internal malfunction

There is a channel error

Wrong parameters

Channel information available

Vector channel error

Channel parameter assignment
error

User calibration doesn’t
correspond to the parameter
assignment

g

5.24.2

Measuring Methods and Measuring Ranges of the SM 431;
AI 8

16 Bit

Measuring Methods

You can set the following measuring methods for the input channels:

Voltage measurement

Current measurement

Temperature measurement

You specify the setting by means of the “Measuring Type” parameter in STEP 7.

Unused Channels

Disable the “Measuring Type” parameter for unused channels. In this way you
shorten the scan time of the module.

This manual is related to the following products: