Responding To Displayed Error Messages; Errors Occurring When The Power Is Turned On; Errors Occurring During Operation; Errors Occurring On Screen Data Initialization - Omron NT20 User Manual

Responding to Displayed Error Messages

7-2

Responding to Displayed Error Messages

7-2-1

Errors Occurring When the Power Is Turned ON

7-2-2

Errors Occurring during Operation

7-2-3

Errors Occurring on Screen Data Initialization

When the NT20 displays an error message, find the corresponding symptoms
in the appropriate table below and respond by following the "Remedy" indi-
cated in the table.
The table below shows the errors that can occur when the power supply to the
NT20 is turned ON, and their remedies.
Message
Screen Data There is an error in the
Corrupted registered screen data.
Mark Data There is an error in the
Corrupted registered mark data.
No direct infor- The allocated words for the
mation is set! PT status control area and
PT status notify area have
not been set.
There is no screen data.
The table below shows the errors that can occur during operation of the NT20,
and their remedies.
Message
Setting Error Bits or words allocated to the
PLC memory cannot be found
in the screen data.
QQ command is not The PLC cannot be con-
available nected to the NT20.
The table below shows the errors that can occur when data is written to the
NT20 screen data memory, and their remedies.
Message
Initialization Error Hardware fault or screen data
memory life reached
Cause
After initializing the screen data mem-
ory in the Maintenance Mode, transmit
the screen data once more with the
Support Tool.
After initializing the screen data mem-
ory in the Maintenance Mode, transmit
the screen data once more using the
Support Tool.
Use the Support Tool to set the head
words of the PT status control area and
PT status notify area, and transmit the
screen data again.
Transmit screen data from the Support
Tool.
Cause
Cause
Section 7-2
Remedy
Remedy
Check the memory area in the
PLC used and correct the bit
and word allocations in the
screen data.
Select a type of PLC that can
be connected to the NT20.
Remedy
If the same message is dis-
played even after executing
screen data memory initializa-
tion or screen data transmis-
sion several times, contact
your OMRON service center.
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