Epson RC90 User Manual

4. Troubleshooting (DeviceNet)
262 RC700 / RC90 Option Fieldbus I/O Rev.14
4.1.2.1 Master: Communication Error
Master Unit LED
Error Description
MS
NS
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)
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

Epson RC90 Specifications

General

Brand	Epson
Model	RC90
Category	Controller
Language	English