9 Troubleshooting
9 - 16
NX-series Communications Interface Units User’s Manual (W540)
Event name Data Discarded Due to Full Internal Buffer Event code 85400000 hex
Meaning An internal buffer is full. The input data is discarded.
Source
Depends on where the Support
Software is connected and the
system configuration.
Source
details
NX Unit
Detection
timing
Continuously
Error attributes
Level Minor fault Log category System
Recovery Reset error in NX Unit.
Effects
User program
Continues.
Operation
The NX Unit will continue to operate.
If the internal buffer for received data is full,
the
received data is discarded.
If the internal buffer for transmission data is full, the
transmission data is discarded.
System-defined
variables
Variable Data type Name
None ---
---
Cause and
correction
Assumed cause Correction Prevention
If the internal buffer for received
da
ta is full, the Controller cannot
read the received data.
If the internal buffer for trans-
mission data is full, the trans-
mission data was too large or
the
re are too many send
requests.
Reduce the amount of data sent
a
nd received with serial devices
or increase the size of I/O data
in the I/O allocation settings.
Reduce the amount of data sent
and received with serial devices
or increase the size of I/O data in
the I/O allocation settings.
Attached
information
Attached information 1: Port where error occurred
0001 hex: Port 1
0010 hex: Port 2
Attached information 2: Buffer where error occurred
0001 hex: Internal buffer for transmission data
0010 hex: Internal buffer for received data
Precautions/
Remarks
You can change the event level to the observation level.