Errors Occurring During Operation And Their Remedies - Omron NT21 - SETUP MANUAL 10-2001 Setup Manual

Responding to Displayed Error Messages

7-2-2 Errors Occurring during Operation and Their Remedies

Message
[Address Setting Error]
Addressing Error exists in the
Screen.
Correct address setting by the
NT Support Tool.
[Memory Table No. Error]
Memory table entry number is
out of limit.
Correct the table entry number
by the NT Support Tool.
[Programming Console Error]
Setting of Programming Console
Function is inadequate. It can be
caused by:
S This PLC does not support Pro-
g gramming Console Function. g
S Protocol mismatch. Set the PLC
to NT Link.
S "PROGRAMMING CONSOLE"
is connected to PLC. is connected to PLC.
[Programming Consol Error]
Programming Console Function
does not RUN. It can be caused does not RUN. It can be caused
by:
S Connecting cable is faulty.
S "PROGRAMMING CONSOLE" S PROGRAMMING CONSOLE
is connected to PLC.
S Protocol mismatch between the
PT and PLC. Set the PLC to NT
Link. Link.
The table below shows the errors that can occur during operation of the NT21
and their remedies.
Cause
The host side allocated words
and bits set with the NT Support
Tool are incorrect.
The memory table entry number
set with the NT Support Tool is
outside the range for the number
of entries in the memory table set
in the system memory.
The communication settings are
incorrect.
The PC used does not support
the Programming Console
function.
A Programming Console is
connected.
The connecting cable is
defective.
Malfunction due to external noise
A Programming Console is
connected.
The communication conditions at
the PC have been changed in
accordance with the NT21
Programming Console function.
Remedy
Set correct words and bits after checking the
area used at the host side by referring to PC
Memory Map in Appendix D of the Reference
Manual or the operation manual for the PC
being used.
Either increase the number of memory table
entries in the System settings under PT
Configuration at the NT Support Tool, or set the
memory table entry number again within the
established range. Then transmit all of the
screen data in a batch to the NT21.
Set the communication method/communication
port as follows when using the Programming
Console function.
S With C-series PLCs:1:1 NT Link
S With CS/CJ-series PLCs:
1:N NT Link (standard or high-speed)
Not all PCs support the Programming Console
function. Check the model of the PC you are
using. (6-12 Programming Console Function,
page 165)
It is not possible to use a Programming Console
and the Programming Console function at the
same time. Disconnect the Programming
Console.
Check the cable connection and perform a
conductivity test. If there is a fault, replace the
cable.
Carry out grounding work in accordance with the
conditions by referring to 3-1-4 Grounding, page
18.
A Programming Console and the Programming
Console function can be used at the same time
in CS/CJ series PCs only. If another PC is being
used, disconnect the Programming Console.
Set the communication conditions at the PC to
match the conditions set in the System Menu.
Section 7-2
179