110
Chapter 8
Files
CONTENTS
CONTENTSCONTENTS
CONTENTS
8.1 File Overview........................................................................................................111
8.1.1 Data Files and Device I/O Files ..................................................................111
8.1.2 Access Methods .........................................................................................111
8.2 Data Files ............................................................................................................ 112
8.2.1 Overview ................................................................................................... 112
8.2.2 Naming Files.............................................................................................. 112
8.2.3 Structure of Data Files ............................................................................... 113
8.2.4 Data File Management by Directory Information ....................................... 114
8.2.5 Programming for Data Files....................................................................... 115
8.2.6 About Drives.............................................................................................. 117
8.3 Bar Code Device ................................................................................................. 118
8.3.1 Overview ................................................................................................... 118
8.3.2 Programming for Bar Code Device............................................................120
8.4 Communications Device......................................................................................122
8.4.1 Overview ...................................................................................................122
8.4.2 Hardware Required for Data Communications .......................................... 122
8.4.3 Programming for Data Communications....................................................123
8.4.4 Overview of Communications Protocols .................................................... 124
[ 1 ] BHT-protocol .......................................................................................... 124
[ 2 ] BHT-Ir protocol.......................................................................................125
8.4.5 File Transfer Tools ..................................................................................... 126
[ 1 ] Transfer Utility ........................................................................................126
[ 2 ] Ir-Transfer Utility C ................................................................................. 126
[ 3 ] Ir-Transfer Utility E .................................................................................126
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