Problems And Countermeasures - Epson RC620 Manual

4. Troubleshooting (DeviceNet)

4.1.2 Problems and Countermeasures

Master Unit LED
MS NS
Green Green
Light ON Light ON
Green Green
Light ON Light
Blinking
Green Red Light
Light ON Blinking
Green Red Light
Light ON ON
Green Light OFF
Light ON
Red Light No Matter
Blinking
Red Light No Matter
ON
Light OFF Green
Light
Blinking
Light OFF Light OFF
142
Error
Normal - Normal condition
communication
During connection - Processing connection establishment
establishment
- Master function in stop state
Communication [Refer to the section 4.1.2.1 Master: Communication
error Error.]
- Slave disconnected from the network (Remote I/O
- Slave not added to the network (Scan list collation
- Communications power supply OFF (Error detection
Busoff detection [Refer to the section 4.1.2.2 Master: Busoff
Duplicate MAC ID Detection.]
- Busoff detection:
- Duplicate MAC ID:
Unestablished [Refer to the section 4.1.2.3 Master: Unestablished
communication Communication.]
- No slave (Error detection before communication
- Communications power supply OFF (Error detection
- Duplicate MAC ID:
Configuration error - Master unit configuration error
When EPSON RC+ was configured as a master:
[Refer to the section 4.1.2.4 Master: Configuration
Error.]
- Slave disconnected from the network
- Slave not added to the network
- Duplicate MAC ID:
- Broken master unit → Unit Replacement
Module error
Absent slave [Refer to the section 4.1.2.5 Absent Slave.]
- No slave (Error detection before communication
- Communications power supply OFF
Uninitialized [Refer to the section 4.1.2.6 Uninitialized Network.]
network - Master unit start-up error
Absent slave - No slave (Error detection before communication
- Communications power supply OFF
Description [Reference]
(The NS LED will be ON in green in a few seconds.)
(When communication does not start, master analysis
with NetMeter is required.)
communication error)
error)
after the communication establishment)
Communication stopped due to critical error.
The MAC ID configuration was duplicated.
(This error occurs only during unit start-up)
establishment)
before the communication establishment)
The MAC ID configuration was duplicated.
Refer to the respective device manuals.
(Remote I/O communication error)
(Scan list collation error)
The MAC ID configuration was duplicated.
establishment)
establishment)
RC620 Option Fieldbus I/O Rev.8