12-11
•
At the remote warehouse location, the user plugs the TriCoder
onto a workstation (PC or terminal) and selects
Table
Download
from the TriCoder
Mode Menu
.
•
The user then starts a table-downloading program on the
workstation, downloading a pick list that has been sorted by
location to minimize the time needed to fill the pick list.
•
When the download is complete, the user starts the Data
Collection program that references the pick list on the TriCoder.
•
When the Pick List is complete, the TriCoder displays
PICK LIST COMPLETED
HIT ANY KEY_
pressing any key brings this prompt:
DATA UPLOAD?
KEY [YES/NO]?_
At this point, the user takes the TriCoder back to the
workstation, attaches the TriCoder, starts the uploading
program on the computer, and then presses YES to start the
Data Upload on the TriCoder. If the user has specified an EOF
STRING of
SO
(ASCII 14), after finishing its upload, the
TriCoder sends the EOF STRING of
SO
, indicating to the host
computer that the TriCoder wants to receive a new Pick List.
•
After receiving the
SO
(ASCII 14) from the TriCoder, the host
computer can do one of 6 things by transmitting a particular
ASCII character to the TriCoder:
ASCII Character
Action
ASCII 01
Begins downloading pick list into Table #1, erases
current data file.
ASCII 02
Begins downloading pick list into Table #2, erases
current data file.
ASCII 03
Begins downloading pick list into Table #3, erases
current data file.
ASCII 04 (EOT)
Does not download a new file.Erases current data file.
ASCII 06 (ACK)
Does not download a new file. Saves current data file.
ASCII 21 (NAK)
retransmits EOF String
After completing the upload, the TriCoder waits for 10 seconds
to receive one of the above characters from the host. If it
receives nothing, the TriCoder displays:
