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Responding to Displayed Error Messages Section 7-2
7-2-2 Errors Occurring during Operation and Their Remedies
The table below shows the errors that can occur during operation of the NT31/
NT31C and their remedies.
7-2-3 Errors Occurring on Screen Data Initialization and Transmission
The table below shows the errors that can occur when the NT31/NT31C data
is initialized, and during data setting and transmission, and their remedies.
Message Cause Remedy
[Address Setting Error]
Addressing Error exists in the
Screen.
Correct address setting by the
Support Tool.
The host side allocated words and
bits set with the Support Tool are
incorrect.
Set correct words and bits after checking the area
used at the host side by referring to PLC Memory
Map in Appendix D of the Reference Manual or
the operation manual for the PLC being used.
[Memory Table No. Error]
Memory table No. is out of limit.
Correct the table No. by the Sup-
port Tool.
The memory table number set
with the Support Tool is outside
the range for the number of mem-
ory tables set in the system mem-
ory.
Either increase the number of memory tables in
the System settings under PT Configuration at
the Support Tool, or set the memory table number
again within the established range.
[Programming Console Error]
Setting of Programming Console
Function is inadequate. It can be
caused by:
• This PLC does not support Pro-
gramming Console Function.
• Protocol mismatch. Set the PLC
to NT Link.
• “PROGRAMMING CONSOLE” is
connected to PLC.
The communications settings are
incorrect.
Set the communications method/communica-
tions port as follows when using the Programming
Console function.
• With C-series PLCs:1:1 NT Link
• With CS/CJ-series PLCs:
1:N NT Link (standard or high-speed)
The PLC used does not support
the Programming Console func-
tion.
Not all PLCs support the Programming Console
function. Check the model of the PLC you are
using. (6-12 Programming Console Function)
A Programming Console is con-
nected.
It is not possible to use a Programming Console
and the Programming Console function at the
same time. Disconnect the Programming Con-
sole.
[Programming Console Error]
Programming Console Function
does not RUN. It can be caused
by:
• Connecting cable is faulty.
• “PROGRAMMING CONSOLE” is
connected to PLC.
• Protocol mismatch between the
PT and PLC. Set the PLC to NT
Link.
The connecting cable is defective. Check the cable connection and perform a con-
ductivity test. If there is a fault, replace the cable.
Malfunction due to external noise Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding,
page 32.
A Programming Console is con-
nected.
It is not possible to use a Programming Console
and the Programming Console function at the
same time. Disconnect the Programming Con-
sole.
The communications conditions at
the PLC have been changed in
accordance with the NT31/NT31C
Programming Console function.
Set the communications conditions at the PLC to
match the conditions set in the System Menu.
Message Cause Remedy
[Flash Memory Error]
Flash Memory I/O Error.
If this happens frequently, Flash
Memory may be broken.
Press Reset Switch to restart.
There is a hardware fault, or the
flash memory (memory for storing
screen data) has reached the end
of its service life.
If the same message is displayed even after
clearing the screen data or transmitting screen
data several times, contact your OMRON service
center.
[Calendar Data Error]
Calendar Data is incorrect.
Set to the MAINTENANCE MODE
and set Calendar Data.
Hardware fault, or system pro-
gram error
Set the calendar clock again from the System
Menu. If the problem recurs, delete the program
in the System Installer mode, then re-install the
program. (6-5-2 Clearing/Installing the System
Program, page 151)
If this does not solve the problem, contact your
OMRON service center.
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