Event name
Number of Samplings Setting Error
Event code
38970000 hex
Meaning
The sampling period is less than the lower limit of the conversion time for the Unit. The number of sam-
plings is not set correctly.
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
Minor fault
Log category
System
Recovery
For the NX bus of CPU Units
Restart the NX bus.
For Communications Coupler Units
Restart the Slave Terminal.
Effects
User program
Continues.
Operation
I/O refreshing for the NX Unit stops.
System-de-
fined varia-
bles
Variable
Data type
Name
None
---
---
Cause and
correction
Assumed cause
Correction
Prevention
The sampling period is less than
the lower limit of the conversion
time for the Unit.
Review the following settings to
ensure that the sampling period
is not below the lower limit of the
conversion time for the Unit.
•
Number of samplings for chan-
nels in which an error occurred
•
Task periods of assigned peri-
odic tasks
After you set the number of sam-
plings again, also set the I/O allo-
cation settings again. After this
setting, download the Unit opera-
tion settings and the I/O alloca-
tion settings again.
If you set the task periods of as-
signed periodic tasks again,
download the task settings to the
Controller again.
Ensure that the sampling period
is not below the lower limit of the
conversion time for the Unit.
Attached in-
formation
Attached information 1: Error channel
0001 hex: Channel 1
0010 hex: Channel 2
0100 hex: Channel 3
1000 hex: Channel 4
If this error occurs at the same time for more than one channel, the sum of the codes is given.
For example, if errors occur at the same time for all of channels 1 to 4, then 1111 hex is given.
Precautions/
Remarks
None
9 Troubleshooting
9 - 19
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
9-3 Checking for Errors and T
roubleshooting on the Support Software
9
9-3-4
Meaning of Error
