Epson EM07ZS1647F - Manual (Page 94)

4. Troubleshooting (DeviceNet)
4.1.2.1 Master: Communication Error
Master Unit LED
MS NS
Error Description
Green
Light ON Red Light
Blinking 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)
4.1.2.1.1 Slave: Not Operating
MS NS
Master LED Condition Green Light ON Red Light Blinking
Absent Slave LED Condition Light OFF Light OFF
♦ Process Flowchart
1
Check
Replace the unit.
† No Problem
Yes
No
Supply power.
Finish
Normal communication?
Is MS LED light ON?
Is power supplied to slaves?
See other errors.
No
Yes
Yes
No
82 Fieldbus I/O Rev.6