4. Troubleshooting (PROFIBUS DP)

 

4.2.2.1.3 Slave: Uninitialized Network

 

 

 

 

 

BF

ST

 

 

Master LED Condition

Light OFF

Red Light Blinking

 

 

Absent Slave LED Condition

Light OFF

Light OFF

 

 

(Uninitialized Network)

 

 

 

 

♦ Process Flowchart

 

 

Check

4

 

 

 

 

 

† No Problem

Measure voltage of all

Problem exists. (Fix it.)

 

 

 

slave power supplies.

 

 

 

 

 

 

 

 

 

No problem

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check the following:

Problem exists. (Fix it.)

† No Problem

- Unconnected terminating resistor

- Unconnected or loose connector/signal wire

 

 

 

 

 

 

 

- Cable disconnection

 

See 4.2.3.1 and 4.2.3.2.

 

 

No problem

The problem is fixed.

 

 

 

 

 

Replace moving cable.

† No Change

 

 

 

(Replace deteriorated cable).

 

 

 

 

 

 

 

 

No change

Replace the unit.

Yes

† No

Normal Communication?

No

Consult the PROFIBUS manufacturer.

Finish

Fieldbus I/O Rev.6

121

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Image 133
Epson EM07ZS1647F manual Uninitialized Network