Intermec Transaction Manager 9560, Руководство пользователя

Страница: 85 / 309

Data Communications and Operating Options
5-11
5
• The EOF (End of File) is only transmitted after the last record of a file.
• Time is never appended to the transmitted files.
Preambles and the postamble are described more completely in Chapter 8,
“Data Entry Commands.”
EOR Characters (End of Record)
Your destination for the data from the 9560 may require an end of record
character in the data files. If you enable EOR, the reader adds the EOR
character at the end of all the individual records within the file. EOR is disabled
in Polling Mode D, Multi-Drop, and Point-to-Point protocols.
EOF Characters (End of File)
Your destination for the data from the 9560 may require an end of file character
in the data file. The EOF character follows the last record transmitted within
any record block, regardless of the size of the record block. If you enable EOF,
the reader adds the EOF character after the last EOR character (if EOR is
enabled).
EOF is disabled in Point-to-Point protocol. The default EOF character in Polling
Mode D and Multi-Drop protocols is SOH.
Record
A record is a maximum of 128 data characters that can be stored in the reader’s
memory. A record can be:
• Data from a regular label
• Data from several multiple-read labels
• Data from regular or multiple-read labels when the reader is in Accumulate mode
• Data entered from a 1700 keyboard or terminal keyboard
Records per Block
For all protocols except User-Defined protocol, the number of Records per
Block is one. You can set Records per Block from 0 to 99 in User-Defined
protocol. Setting this value to zero transmits the whole file within a single
block.