Rockwell-automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User M Instrukcja Użytkownika Pobierz pdf (Strona 18)

1–6 Overview of FLEX I/O and Your PROFIBUS Adapter Module

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The adapter module consists of the following components:

• two diagnostic indicators

• PROFIBUS DP network connector

• 24V dc power wiring connection terminals

• two node address switches

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Diagnostic Indicators

Diagnostic indicators are located on the front panel of the adapter

module. They show both normal operation and error conditions in

your FLEX I/O system. The indicators are:

• Device status (STATUS)

• Communication link status (PROFIBUS)

Upon power-up, the adapter goes to an initialization state and

performs a self-test (memory check, data memory clear, CRC on

code). The indicators also go through a self-test sequence. If a failure

occurs, the adapter transitions to a faulted state and waits for reset

(cycle power). Otherwise, the adapter begins monitoring the network

(run state) for messages.

Chapter 5 describes the diagnostic indicators and how to use them

for troubleshooting.

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PROFIBUS Adapter

Components

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Rockwell-automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User M Instrukcja Użytkownika Strona 18