Omron NT - SUPPORT TOOL FOR WINDOWS V4 Operation Manual page 480

Data Conversion
Correction related to contents of numeral memory table
Correction related to bit memory table
Correction related to extended I/O input/output table
When the data of a conventional model is converted to the data for a new model,
the converted data requires your attention to the fact that the processing that oc-
curs if incorrect data (existence of A to F other than F at the most significant bit
position) is written to an allocated word in the host differs between a conventional
and a new model.
S Difference
New models:
Conventional models:
S Conversion result, error message and corrective action
Status before
Conversion
––
If a bit memory table is converted from the conventional model to the new model,
conversion will be executed in the manner shown below due to the difference of
the bit memory table function.
S Difference
New models:
Conventional models:
S Conversion result, error message and corrective action
Status before
Conversion
[Switch screen]: OFF
[Screen No]: 0
[Switch screen]: OFF
[Screen No]: As desired
[Switch screen]: OFF
[Screen No]: 0
[Switch screen]: ON
[Screen No]: As desired
When an extended I/O input/output table is converted, the data is converted in
the manner shown below due to differences in the handling of an extended I/O
input/output table between NT30/NT30C and other models.
S Difference
NT30/NT30C:
Other models:
The written data is invalid and the existing content is
retained.
The incorrect data is stored.
Status after
Error Message
Conversion
–– ––
Alarm function and switch screen function cannot be
set simultaneously.
Alarm function and switch screen function can be set
simultaneously.
Status after Error
Conversion Message
Function: None
[Switch screen]: OFF
[Screen No]: 0
Function: Alarm
[Switch screen]: ON
[Screen No]: As desired
Function: Alarm
[Switch screen]: ON
[Screen No]: 9999
Function: Alarm
[Switch screen]: ON
[Screen No]: As desired
Extended I/O input/output table can be used.
Extended I/O input/output table cannot be used.
Appendix A
Corrective Action
Note that the display dif-
fers between a conven-
tional and a new model
if incorrect data is writ-
ten. (Refer to 7-2 Nu-
meral Memory Table.)
Corrective Action
–– Change function to
[Alarm], if you want to dis-
play the alarm. (Refer to
7-4 Bit Memory Table.)
–– Correction is not neces-
sary.
–– Correction is not neces-
sary.
–– Change the function to
[Switch screen]. (Refer to
7-4 Bit Memory Table.)
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