Specifications

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AS-Interface

System Components and Accessories

AS-Interface analyzers

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Siemens LV 1 · 2007

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Overview

The AS-Interface analyzer is used to test AS-Interface networks.

It enables systematic troubleshooting and permanent monitor-

ing.

Installation errors, e.g. loose contacts or EMC interference under

extreme loads, can be revealed by this device.

Thanks to the easy-to-use software the user can assess the qual-

ity of complete networks even if he lacks detailed specialist

knowledge of AS-Interface. In addition it is an easy matter with

the AS-Interface analyzer to create test logs from the records

produced, thus providing documentation for start-ups and ser-

vice assignments.

For advanced AS-Interface users there are trigger functions for

detailed diagnostics.

Connection

The AS-Interface analyzer follows the communication on the

AS-Interface network as a passive station. The unit is supplied

simultaneously from the AS-Interface cable.

This analyzer interprets the physical signals on the AS-Interface

network and records the communication.

The data thus obtained are transferred through an RS 232 inter-

face to a PC such as a notebook, for evaluation with the supplied

diagnostics software.

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Benefits

• Simple and user-friendly operation enables diagnostics of

AS-Interface networks without help from specialists

• Speedy troubleshooting thanks to intuitive display in statistics

mode

• Test logs provide verification of the state and quality of the

installation for service and approval

• Recorded logs facilitate remote diagnostics by Technical

Assistance

• Comprehensive trigger functions enable exact analysis

• Process data can be monitored online

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Application

Online statistics

This mode provides a quick overview of the existing AS-Interface

system. The error rates are presented per slave in a traffic-light

function (green, yellow, red).

The bus configuration and the currently transmitted data of the

slaves are shown in a well arranged presentation.

With the expanded statistics function it is possible to determine

the error rates as the number of transmitted or faulty bus mes-

sage frames.

The bundle error overview shows in steps how many multiple

repetitions of message frames occurred in order to enable a se-

lective and look-ahead assessment of the transmission quality.

NSA0_00359b

Branch M12

Master

AS-Interface Analyzer

Slave Slave Slave Slave