6 Troubleshooting
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NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
Event name NX Unit Version Not Matched Event code 35900000 hex
Meaning There is a mounted NX Unit with a unit version earlier than that in the Unit configuration information registered in the
CPU Unit.
Source NX Bus Function Module Source details Master Detection
timing
At CPU Unit
power ON, at
Controller reset,
or at NX bus
restart
Error attributes Level Partial fault Recovery Cycle the power
supply to the
CPU Unit, reset
the Controller, or
restart the NX
bus.
Log category System
Effects User program Continues. Operation • For NX Units with this error, I/O communications will not
operate and message communications cannot be per-
formed.
• For NX Units without this error, I/O communications will
not operate, but message communications can be per-
formed.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The unit version of an NX Unit
mounted in the actual configuration is
earlier than that in the Unit configura-
tion information registered in the CPU
Unit.
To match the Unit configuration infor-
mation with the actual configuration,
download the Unit configuration infor-
mation that contains the unit version
of the NX Unit mounted in the actual
configuration to the CPU Unit. To
match the actual configuration with
the Unit configuration information,
replace the NX Unit in the actual con-
figuration with an NX Unit with a unit
version later than that in the Unit con-
figuration information.
Download Unit configuration informa-
tion for which you confirmed that the
comparison result showed Not com-
patible in the Compare and Merge
Window of the Sysmac Studio to the
CPU Unit.
Attached
information
Attached information 1: Unit number of the NX Unit where the error occurred
Attached information 2: Unit version in the Unit configuration information of the NX Unit where the error occurred
Precautions/
Remarks
None
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