Siemens SIMATIC TI500 Manual de usuario descargar pdf (Pagina 40)

Used only in quality

assurance tests by

manufacturer

Gateway Installation and Configuration

3-12

TIWAY I Gateway User Manual

3.4 Diagnostic

ests

The

Gateway has five levels of built-in tests, three of which are designed for

the user

• Power

-on test

•

Operational Diagnostic test

• User

-initiated test

•

Burn-in test

•

Final test

The Power

-on test executes the initialization routine following a master

reset. All indicators light for approximately one second before any subtests

begin. The only indicator which will be lit while the tests are running is the

TEST MODE indicator. If the Gateway passes all tests successfully

, the

GATEWA

Y GOOD indicator will light.

The subtests include a RAM data and address integrity test, a ROM CRC

integrity test, and a communications controller internal loopback test.

If the Gateway fails any of the power

-on tests, the GA

TEWA

Y GOOD

indicator will

flash.

The

Operational Diagnostic test executes during all normal modes of

Gateway operation, off-line or on-line. The subtests do not disturb normal

operation of the network. They are performed at least once per minute

under all conditions.

An operational diagnostics failure is treated in the same way as a power

-on

test failure. The GA

TEWA

Y GOOD indicator will

flash

if the Gateway fails

any diagnostic test.

Built-In Diagnostic

Tests

Power

-On T

est

Operational

Diagnostic T

est

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Siemens SIMATIC TI500 Manual de usuario Pagina 40

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