Event name
Unit Under Range for Channel 4
Event code
64FB0000 hex
Meaning
The analog input data for input channel 4 went below the lower limit of the input range. Or, the analog
output data for output channel 4 went below the lower limit of the output range.
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
Observation
Log category
System
Recovery
Reset error in the NX Unit.
Effects
User program
Continues.
Operation
If the input data goes below the input range, the
converted value will be the lower limit of the input
range. If the output data goes below the output
range, the analog output will be the lower limit of
the output range.
System-de-
fined varia-
bles
Variable
Data type
Name
None
---
---
Cause and
correction
Assumed cause
Correction
Prevention
The analog input data went be-
low the lower limit of the input
range. Or, the analog output data
went below the lower limit of the
output range.
Find the reason for going below
the lower limit of the input or out-
put range and make suitable cor-
rections.
Find the reasons for going below
the lower limit of the input or out-
put range and take suitable pre-
ventive measures.
Attached in-
formation
None
Precautions/
Remarks
You can change the event level to the minor fault level.
9 Troubleshooting
9 - 32
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
