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6-2
Section
Responding to Displayed Error Messages
416
6-2-2 Errors Occurring during Operation and Their Remedies
The table below shows the errors that can occur during operation of the PT and
their remedies.
Operational Errors (Other than Device Monitor Errors)
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
Appendix D PC Memory Maps (page 429), and
the manual for the PC being used.
[Memory Table No. Error]
Memory table No. is out of limit.
Correct the table No. by the
Support Tool.
The memory table number set
with the Support Tool is outside
the range for the number of
memory tables set in the system
memory.
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-
The communication settings are
incorrect.
Set the communication method/communication
port as follows when using the Programming
Console function.
- With C series PLC : NT Link : 1 : 1
- With CS1 series PLC : NT Link : 1 : N
•
This PLC does not su
ort Pro-
gramming Console Function.
•
Protocol mismatch. Set the PLC
to NT Link.
•
“PROGRAMMING CONSOLE”
The PC used does not support
the Programming Console
function.
Not all PCs support the Programming Console
function. Check the model of the PC you are
using. (
2-16-9 Programming Console Function,
page 248)
•
“PROGRAMMING CONSOLE”
is connected to PLC.
A programming Console is
connected.
It is not possible to use a Programming Console
and the Programming Console function at the
same time. Disconnect the Programming
Console.
[Programming Consol Error]
Programming Console Function
does not RUN. It can be caused
The connecting cable is
defective.
Check the cable connection and perform a
conductivity test. If there is a fault, replace the
cable.
does not RUN. It can be caused
by:
•
Connecting cable is faulty.
•
“PROGRAMMING CONSOLE”
Malfunction due to external noise
Carry out grounding work in accordance with the
conditions. (Refer to
Grounding in section 3 in
the
Setup Manual.)
•
PROGRAMMING CONSOLE
is connected to PLC.
•
Protocol mismatch between the
PT and PLC. Set the PLC to NT
Link.
A Programming Console is
connected.
It is not possible to use a Programming Console
and the Programming Console function at the
same time. Disconnect the Programming
Console.
Link.
The communication conditions at
the PC have been changed in
accordance with the PT
Programming Console function.
Set the communication conditions at the PC to
match the conditions set in the System Menu.
Device Monitor Function Errors
Error
Probable cause
Remedy
The setting is wrong.
A word address that doesn’t
exist in the PC was specified
in the popup input window.
Input a word address that exists in the PC
Can’t write while running.
An attempt was made to
change word contents while
the PC was in RUN mode.
Switch the PC to MONITOR or PROGRAM mode. The
PC’s operating mode can be changed from any one of
the Device Monitor screens.
The memory can’t be written.
An attempt was made to write
to a read-only or
write-protected area.
Write to a read/write area in the connected PC. If the
area is write-protected, clear the write-protection and
try writing the data again.
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Summary of Contents for NT21 Series
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