43
Using a Memory Unit Section 3-5
• When writing the system program into the NT31/NT31C, the type of sys-
tem program inside Memory Unit and the type of PT must correspond.
4. Press Execute.
The data is transmitted.
The messages Preparing, Transmitting, Verifying, and Finished are dis-
played in accordance with the progress of data transmission. At the same
time, the progress of data transmitting status is displayed by the means of
the number of bytes and blocks (1 bank = 16 block = 1024k byte).
When the data transmission is operated manually, RUN LED remains OFF.
5. Switch the NT31/NT31C power OFF, remove the Memory Unit, then switch
the NT31/NT31C power back ON.
Errors When Using a
Memory Unit
If an error occurs when using the Memory Unit, the NT31/NT31C operates as
follows.
• The details of the error and remedial action are displayed on the screen.
Each screen has touch switches to change the display language from one
to the other. When the manual data transmission is operating, the content
of error and remedial action are shown with selected language. When the
automatic transmission is operating, it is displayed in Japanese.
• The continuous buzzer sounds.
• The RUN LED flashes.
If a protect setting error occurs when executing manual transmission, it is pos-
sible to return to the Memory Unit manual transmission screen by pressing
the OK touch switch, but in the case of other errors, the status described
above remains in effect until the NT31/NT31C power is turned OFF or reset.
System Program in the PT
and Memory Unit for Each
PT Mod
The system program for each model of PT is given in the following table.
When an error occurs, take remedial action by referring to the table below.
NT31
NT31C
System program for NT31/NT31C PT models without a -V suffix,
and for NT31/NT31C PT models with a -V1 and -V2 suffix
NT31-V3
NT31C-V3
System program for NT31 PT models with a -V3 suffix
Error Probable Cause Remedial Action
Mode setting error DIP switches SW1-1 to
SW1-3 are all OFF, or
more than one is ON.
Turn the NT31/NT31C power OFF,
set the Memory Unit DIP switches
correctly, then turn the NT31/
NT31C power back ON.
Protect setting error
(automatic transmis-
sion)
Writing to the data write
destination has been pro-
hibited by the setting of
SW2-1 or SW2-2.
Turn the NT31/NT31C power OFF,
set the Memory Unit DIP switches
correctly, then turn the NT31/
NT31C power back ON.
Protect setting error
(manual transmis-
sion)
Writing to the data write
destination has been pro-
hibited by the setting of
SW2-1 or SW2-2.
Perform either of the following pro-
cedures.
• Press the OK touch switch to
return to the Memory Unit manual
transmission screen, make the
correct settings, then try again.
• Turn the NT31/NT31C power
OFF, correct the DIP switches set-
tings of the Memory Unit, then
turn the power back ON.
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