4. Troubleshooting (DeviceNet)
4.1.2 Problems and Countermeasures
Master Unit LED
MS NS
Error Description
[Reference]
Green
Light ON
Green
Light ON
Normal
communication
- Normal condition
Green
Light ON
Green
Light
Blinking
During connection
establishment
- Processing connection establishment
(The NS LED will be ON in green in a few seconds.)
- Master function in stop state
(When communication does not start, master analysis
with NetMeter is required.)
Green
Light ON
Red Light
Blinking
Communication
error
[Refer to the section
4.1.2.1 Master: Communication
Error
.]
- Slave disconnected from the network (Remote I/O
communication error)
- Slave not added to the network (Scan list collation
error)
- Communications power supply OFF (Error detection
after the communication establishment)
Green
Light ON
Red Light
ON
Busoff detection
Duplicate MAC ID
[Refer to the section
4.1.2.2 Master: Busoff
Detection
.]
- Busoff detection: Communication stopped due to
critical error.
- Duplicate MAC ID: The MAC ID configuration was
duplicated. (This error occurs only during unit start-
up)
Green
Light ON
Light OFF Unestablished
communication
[Refer to the section
4.1.2.3 Master: Unestablished
Communication
.]
- No slave (Error detection before communication
establishment)
- Communications power supply OFF (Error detection
before the communication establishment)
- Duplicate MAC ID: The MAC ID configuration was
duplicated.
Red Light
Blinking
No Matter
Configuration error
- Master unit configuration error
Refer to the respective device manuals.
[Refer to the section
4.1.2.4 Master: Configuration
Error
.]
When EPSON RC+ was configured as a master:
- Slave disconnected from the network (Remote I/O
communication error)
- Slave not added to the network (Scan list collation
error)
- Duplicate MAC ID: The MAC ID configuration was
duplicated.
Red Light
ON
No Matter
Module error
- Broken master unit
→
Unit Replacement
Light OFF Green
Light
Blinking
Absent slave
[Refer to the section
4.1.2.5 Absent Slave
.]
- No slave (Error detection before communication
establishment)
- Communications power supply OFF
Light OFF Light OFF Uninitialized
network
Absent slave
[Refer to the section
4.1.2.6 Uninitialized Network
.]
- Master unit start-up error
- No slave (Error detection before communication
establishment)
- Communications power supply OFF
80
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 ...