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Configuration and function of the modules english – Burkert Type 8645 User Manual

Page 70

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70 - 8645

ConfiGuraTion anD funCTion of The moDules

English

Status of the buS STATuS LEDs

LED

unit condition

Explanation

problem Solving

Dark

no power /
not online

Unit has no supplied power.

Unit has not yet finished the Du-
plicate MAC ID test.
(Test takes approx. 2 hrs.)

Unit can not finish Duplicate
MAC ID test.

Connect further units, in case this
unit is the only one in network.

Exchange the unit.

Check baud rate.

Check bus connection.

Green

Online,
connection to
master exists

Normal operating conditions with
established connection to master.

Green,
blinking

Online,
no connection to
master

Normal operating conditions without
established connection to master.

Red,
blinking

Connection
TIME OUT

One or more I/O connections are in
a TIME OUT status.

Establish new connection through
Master to ensure that the I/O data is
cyclically transferred.

Red

Critical error

A further unit with the same MAC
ID address is in the loop.

The bus connection is missing
due to communications problems.

Check baud rate.

Exchange the unit if necessary.

After current is applied, the following function test for the BUS STATUS LED’s is conducted:

• BO LED briefly glows green (approx. 1/4 s)

• BF LED briefly glows red (approx. 1/4 s)

• LEDs

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