User manual

COMMUNICATION PROTOCOL
C
111
0 - Download data
Use this command when you want to download a data file or program file.
Command data can take the following values:
filename request all records of specified file, if it exists. The filename must
always consist of 8 characters;
*
request all records of the existing files;
+
request download of current record, record pointer is not updated;
+nnn request download of nnn records beginning with the current one. The
record pointer is not updated;
#
request zero-setting of downloaded indices;
ATTENTION
During data download not more than three empty consecutive
records must be present, otherwise the operation in progress
end.
The Formula terminal transmits the n data records:
HEADING
<E O T >
<E O F >
RECORDS
END OF FILE
END OF TRANSMISSION
Fi lename
1)
2)
n
-2)
n
-1)
n
)
If an individual record is requested, the Formula terminal sends the record to be
transmitted and the message <EOT> to the host computer: