Data Files - Symbol PDT 1100 Manual

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PDT 1100 Terminal DLL Guide

Note: In the PDT 1100-Ir protocol, CR-LF codes that are used as record

separators in data are removed before file transmission.

When receiving downloaded function files, the PDT 1100 packs two-

byte ASCII characters into two 4-bit hexadecimal codes in a single

byte, to improve the PDT 1100's performance and memory

availability.

Data Files

Ir-Transfer Utility C DLL regards MS-DOS files with an extension other than .PD3, .FN3,

and .EX3 as data files. Each record in a data file consists of one or more fields and suffixed

by a set of CR and LF codes (CR-LF codes), 0Dh and 0Ah. An EOF (1Ah) code can be

omitted.

Data files can consist of ASCII text characters as well as arbitrary characters (00h to FFh).

Record

Field 1

EOF

To download data files, type the folder, file names, and the field lengths. Each field should be

1 to 254 digits in length and the number of fields should be 1 to 16. The total field length

(record length) plus the number of fields should be 255 or less.

Designate field lengths in a file with the same file name but an .FLD extension as the file to

download, in the directory where that file resides. When the data file is uploaded, Ir-Transfer

Utility C DLL automatically creates the field definition file in the folder where the uploaded

file is stored. For the .FLD file format, refer to Start of File Transmission on page 2-11.

2-4

Record Length

Field 2

Field N

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