Event code
Event
name
Meaning Assumed cause
Level
Reference
M
a
j
P
rt
M
i
n
O
b
s
I
n
f
o
80210000 hex NX Unit
Output Syn-
chronization
Error
An output synchroni-
zation error occurred
in the NX Unit.
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.
For Communications Coupler
Units
• The communications cable
connected to the Communi-
cations Coupler Unit is bro-
ken or the connection is faul-
ty.
• The communication cable is
affected by noise.
¡
page
9 -
25
80240000 hex NX Unit
Clock Not
Synchron-
ized Error
A time information
error occurred in an
NX Unit.
For the NX bus of CPU Units
• There is a hardware error in
an NX Unit.
• There is a hardware error in a
CPU Unit.
For Communications Coupler
Units
• There is a hardware error in
an NX Unit.
• There is a hardware error in
an EtherCAT Coupler Unit.
¡
page
9 - 26
64F00000 hex Unit Over
Range for
Channel 1
The analog input da-
ta for input channel 1
exceeded the upper
limit of the input
range. Or
, the analog
output data for out-
put channel 1 ex-
ceeded the upper
limit of the output
range.
• The analog input data ex-
ceeded the upper limit of the
input range. Or, the analog
output data exceeded the up-
per limit of the output range.
8 ¡
page
9 - 27
64F10000 hex Unit Over
Range for
Channel 2
The analog input da-
ta for input channel 2
exceeded the upper
limit of the input
range. Or, the analog
output data for out-
put channel 2 ex-
ceeded the upper
limit of the output
range.
• The analog input data ex-
ceeded the upper limit of the
input range. Or, the analog
output data exceeded the up-
per limit of the output range.
8 ¡
page
9 - 27
9 Troubleshooting
9 - 10
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)