4. Troubleshooting (PROFIBUS DP)
4.2.2 Problems and Countermeasures
Master Unit LED
BF ST
Error Description
[Reference]
Light
OFF
Green
Light
Blinking
Normal
communication
- Normal condition
Light
OFF
Green
Light ON
Ready for
communication
- Normal condition
Light
OFF
Red
Light
Blinking
Communication
error
[Refer to the section
4.2.2.1 Master
Communication Error
.]
- Slave disconnected from the network
(Remote I/O communication error)
- Slave not added to the network (Scan list
collation error)
- Nonstandard wiring
- No or too many terminating resistors
- Noise intrusion
Light
OFF
Red
Light ON
Data link layer
error
[Refer to the section
4.2.2.2 Master: Data
Link Layer Error
.]
- Nonstandard wiring
- Noise intrusion
Light
OFF
Light
OFF
Uninitialized
network
[Refer to the section
4.2.2.3 Master:
Uninitialized Network
.]
- Master unit power error
- Master unit configuration error
Red
Light ON
No
Matter
Physical error
[Refer to the section
4.2.2.4 Master:
Configuration Error
.]
- Nonstandard wiring
- Signal wire connection failure
- Signal wire short circuit
114
Fieldbus I/O Rev.6
Summary of Contents for EM07ZS1647F
Page 1: ...Rev 6 EM07ZS1647F EPSON RC Option Fieldbus I O ...
Page 2: ...E PSON RC Option Fieldbus I O Rev 6 ...
Page 8: ...vi Fieldbus I O Rev 6 ...
Page 12: ...Table of Contents x Fieldbus I O Rev 6 ...
Page 80: ...2 Installation 68 Fieldbus I O Rev 6 ...
Page 88: ...3 Operation 76 Fieldbus I O Rev 6 ...
Page 164: ...5 Maintenance Parts List 152 Fieldbus I O Rev 6 ...
Page 168: ...Appendix A applicomIO Upgrade 156 Fieldbus I O Rev 6 ...