4. Troubleshooting (DeviceNet)
4.1.2.1 Master: Communication Error
Master Unit LED | Error | Description | ||
MS | NS | |||
|
| |||
Green | Red Light | Communication | - Slave disconnected from the network | |
Light ON | Blinking | error | (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
Check1
No Problem | Is power supplied to slaves? | No |
|
Yes
No
Supply power.
Is MS LED light ON? Yes
Replace the unit.
Normal communication? Yes
No
Finish
See other errors.
82 | Fieldbus I/O Rev.6 |
