Nikon DTM-502 Series Instruction Manual page 198

11) Comm.
If an error is detected during upload data, it aborts the process and displays the
following messages.
Editting the current ST is prohibited.
Old ST records can be edited.
(No recalculation can be performed on the
instrument).
Action: Press any key to return to the code/layer
name input screen.
Coordinates of SO/SS/CP records cannot be
changed.
Action: Press any key to return to the previous
screen.
PT name/number is longer than 16 digits.
Action: Press any key and check the Line in
uploading data.
Coordinate is more than 13 digits.
Action: Press any key and check the Line in your
data.
Duplicate PT is found during upload.
Action: Press any key and check the point shown
on the screen.
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