4. Troubleshooting (PROFIBUS DP)

4.2.2.1 Master: Communication Error

Master Unit LED

Error

 

Description

BF

ST

 

 

 

 

 

Light

Red

Communication

 

- Slave disconnected from the network

OFF

Light

error

 

(Remote I/O communication error)

 

 

Blinking

 

 

- Slave not added to the network (Scan list

 

 

 

 

 

collation error)

 

 

 

 

 

 

- Nonstandard wiring

 

 

 

 

 

 

- No or too many terminating resistors

 

 

 

 

 

- Noise intrusion

 

4.2.2.1.1 Master/Slave: Communication Error

 

 

 

 

 

 

 

 

 

 

 

 

 

BF

ST

 

Master LED Condition

 

Light OFF

Red Light Blinking

 

Absent Slave LED Condition

 

Light OFF

Green Light Blinking

 

(Communication error)

 

Light OFF

Red Light Blinking

116

Fieldbus I/O Rev.6

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Image 128
Epson EM07ZS1647F Master/Slave Communication Error Master LED Condition, Absent Slave LED Condition, Communication error