Okuma Alarm-D 4889 PLC link error
A failure of the host was detected by the PLC link.
1->The host PC is at rest.
2->The host PC has a failure.
3->A host communication error
4->The host data link is not participating.
5->The host has an offset error.
6->The host does not have enough reception area.
7->The host has a surplus reception area.
Probable Faulty Locations
Measures to Take
Check the host PC.