Specifications

125
Chapter 8
Files
CONTENTS
8.1 File Overview............................................................................................... 125
8.1.1 Data Files and Device I/O Files........................................................ 125
8.1.2 Access Methods............................................................................... 125
8.2 Data Files..................................................................................................... 126
8.2.1 Overview .......................................................................................... 126
8.2.2 Naming Files .................................................................................... 126
8.2.3 Structure of Data Files...................................................................... 127
8.2.4 Data File Management by Directory Information.............................. 128
8.2.5 Programming for Data Files ............................................................. 129
8.2.6 About Drives..................................................................................... 131
8.3 Bar Code Device.......................................................................................... 132
8.3.1 Overview .......................................................................................... 132
8.3.2 Programming for Bar Code Device .................................................. 136
8.4 Communications Device.............................................................................. 139
8.4.1 Hardware Required for Data Communications................................. 139
8.4.2 Programming for Data Communications .......................................... 139
8.4.3 Overview of Communications Protocols........................................... 140
[ 1 ] BHT-protocol ........................................................................... 140
[ 2 ] BHT-Ir protocol........................................................................ 141
8.4.4 File Transfer Tools ........................................................................... 142
[ 1 ] Transfer Utility......................................................................... 142
[ 2 ] Ir-Transfer Utility C .................................................................. 142
[ 3 ] Ir-Transfer Utility E .................................................................. 142