9 Troubleshooting
9 - 12
NX-series Digital I/O Unit User’s Manual (W521)
Event name
NX Unit I/O Communications Error
Event code
80200000 hex
Meaning
An I/O communications error occurred between the Communications Coupler Unit and the NX Unit.
Source
Depends on where the Sysmac
Studio is connected and the sys-
tem configuration.
Source details
NX Unit
Detection
timing
Continuously
Error
attributes
Level
Minor fault
Recovery
When the
fail-soft opera-
tion for the
Communica-
tions Coupler
Unit is set to
stop, reset all
errors in Con-
troller.
When the
fail-soft opera-
tion for the
Communica-
tions Coupler
Unit is set to
fail-soft, reset
errors in Com-
munications
Coupler Unit
and NX Unit.
Log category
System
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.
Sys-
tem-defined
variables
Variable
Data type
Name
None
---
---
Cause and
correction
Assumed cause
Correction
Prevention
The NX Unit is not mounted prop-
erly.
Mount the NX Units and End
Cover securely and secure them
with End Plates.
Mount the NX Units and End
Cover securely and secure them
with End Plates.
The power cable for the Unit
power supply is disconnected. Or,
the wiring from the Unit power
supply to the NX Units is incorrect.
Correctly wire the Unit power sup-
ply to the NX Units.
Correctly wire the Unit power sup-
ply to the NX Units.
The power cable for the Unit
power supply is broken.
Replace the power cable between
the Unit power supply and the NX
Units.
None
The voltage of the Unit power sup-
ply is outside the specified range.
Or, the capacity of the Unit power
supply is insufficient.
Correctly configure the power sup-
ply system according to the power
supply design methods.
Correctly configure the power sup-
ply system according to the power
supply design methods.
There is a hardware error in the
NX Unit.
If the error occurs again even after
you make the above correction,
replace the NX Unit.
None
Attached
information
None
Precautions/
Remarks
None
Summary of Contents for NX-IA3117
Page 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Page 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Page 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Page 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Page 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Page 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Page 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Page 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Page 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...
