Omron NX701-17 Series Troubleshooting Manual page 245

Event code Event name
80200000 hex NX Unit I/O
Communica-
tions Error
80240000 hex NX Unit Clock
Not Synchro-
nized Error
NJ/NX-series Troubleshooting Manual (W503)
Meaning Assumed cause
An I/O communications For the NX bus of CPU
error occurred in an NX Units
Unit.
• An error that prevents
normal NX bus communi-
cations occurred in a
CPU Unit.
• An NX Unit is not
mounted properly.
• The power cable for the
Unit power supply is dis-
connected, or the wiring
from the Unit power sup-
ply to the NX Units is
incorrect.
• The power cable for the
Unit power supply is bro-
ken.
• The voltage of the Unit
power supply is outside
the specified range, or
the capacity of the Unit
power supply is insuffi-
cient.
• There is a hardware error
in an NX Unit.
For Communications Cou-
pler Units
• An error that prevents
normal NX bus communi-
cations occurred in a
Communications Coupler
Unit.
• The NX Unit is not
mounted properly.
• The power cable for the
Unit power supply is dis-
connected. Or, the wir-
ing from the Unit power
supply to the NX Units is
incorrect.
• The power cable for the
Unit power supply is bro-
ken.
• The voltage of the Unit
power supply is outside
the specified range. Or,
the capacity of the Unit
power supply is insuffi-
cient.
• There is a hardware error
in the NX Unit.
A time information For the NX bus of CPU
error occurred in an NX Units
Unit.
• There is a hardware error
in an NX Unit.
• There is a hardware error
in a CPU Unit.
For Communications Cou-
pler Units
• There is a hardware error
in an NX Unit.
• There is a hardware error
in an EtherCAT Coupler
Unit.
3 Error Tables
Level
Maj Prt Min Obs Info
S
S
Reference
W566
3
W566
3-167