Event name NX Unit Output Synchronization Error Event code 80210000 hex
Meaning An output synchronization error occurred in the NX Unit.
Source Depends on where the Support
Software is connected and the
system configuration.
Source details NX Unit Detection tim-
ing
Continuously
Error attrib-
utes
Level Minor fault Log category System
Recovery For the NX bus of CPU Units
Reset the error in the NX Bus Function Module.
For Communications Coupler Units
Reset all errors in Controller
.
Effects User program Continues. Operation The NX Unit will continue to operate.
Input data: Updating input values stops.
Output data: The output values depend on the
Load Rejection Output Setting.
System-de-
fined varia-
bles
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
For the NX bus of CPU Units
I/O refreshing on the NX bus is
not performed normally due to an
error in the CPU Unit.
Check the error that occurred in
the CPU Unit and perform the re-
quired corrections.
Take preventive measures
against the error that occurred in
the CPU Unit.
For Communications Coupler Units
The communications cable con-
nected to the Communications
Coupler Unit is broken or the
connection is faulty
.
Replace the communications ca-
ble or wire the cable correctly.
Wire the communications cable
correctly.
The communication cable is af-
fected by noise.
Set the Consecutive Communi-
cations Error Detection Count
parameter for the Communica-
tions Coupler Unit to a suitable
value that will not cause prob-
lems in operation.
Implement noise countermeas-
ures if there is excessive noise.
Implement noise countermeas-
ures. Refer to the operation man-
uals for the specific Units for the
noise countermeasures.
Attached in-
formation
None
Precautions/
Remarks
None
9 Troubleshooting
9 - 25
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
9-3 Checking for Errors and Troubleshooting on the Support Software
9
9-3-4 Meaning of Error
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