13 - 34 Symbol DS3408 Product Reference Guide
Code 39 Buffering (Scan & Store)
Parameter # 71h
This feature allows the digital scanner to accumulate data from multiple Code 39 symbols.
Select the Scan and Store option (
Buffer Code 39
) to temporarily buffer all Code 39 symbols with a leading space
as a first character for later transmission. This does not buffer the leading space.
Decoding a Code 39 symbol with no leading space transmits in sequence all buffered data in a first-in first-out
format, plus the “triggering” symbol. See the following pages for further details.
Select the
Do Not Buffer Code 39
option to transmit all decoded Code 39 symbols immediately without storing
them in the buffer.
This feature affects Code 39 only. If selecting
Buffer Code 39
, Motorola recommends configuring the digital
scanner to decode Code 39 symbology only.
While there is data in the transmission buffer, you cannot select
Do Not Buffer Code 39
. The buffer holds 200
bytes of information.
To disable Code 39 buffering when there is data in the transmission buffer, first force the buffer transmission (see
) or clear the buffer.
Buffer Data
To buffer data, enable Code 39 buffering and decode a Code 39 symbol with a space immediately following the
start pattern.
•
Unless the data overflows the transmission buffer, the digital scanner issues a low/high beep to indicate
successful decode and buffering. For overflow conditions, see
Overfilling Transmission Buffer on page 13-36
•
The digital scanner adds the decoded data excluding the leading space to the transmission buffer.
•
No transmission occurs.
Buffer Code 39 (Enable)
(01h)
*
Do Not Buffer Code 39 (Disable)
(00h)
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