Worth Data RF Terminal 7000 Spezifikationen Seite 41
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- Inhaltsverzeichnis
- FEHLERBEHEBUNG
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Programming for the RF Terminal
The three levels of programming support offered for the RF Terminal are:
• Low Level ASCII sequences sent to and from the Base Station by the user program reading/writing to the
serial port.
• Active X drop-in components. Every necessary function is defined. You just complete the code for each
function.
• TCP/IP Active X drop-in components used by the “Server” computer to communicate with the “Client”
computer that has the Base Station(s) attached.
Low-Level Direct To Serial Port Programming
Planning
Remember, plan for every error that the Base Station might return including:
Sequence Errors detected
Illegal Command detected
Base Station Initialization detected
Addressing a Terminal Not Signed In detected
Command without an ID
Programs can be written in any language that has access to the serial port (reading/writing), regardless of the
platform. No more than one Base Station is allowed for each serial port.
Host to Terminal Programming
The basic format of a message that is transmitted from Host to Base to Terminal is fairly simple:
Byte position Function Possible values
1 RF Terminal ID 0-9, A-Z, a-z, - =
2+ Command(s) **
Last Termination of message EOT (ASCII 4)
The RF Terminal ID is always the first byte and always only 1 character in length. There are 64 different
possible values - 0-9 , A-Z, a-z, - and =.
The Command(s) section of the message always starts with the second byte and can consist of one or more
commands - including data to be displayed or voice messages to be broadcast.
The last byte is always ASCII 4 (EOT) to terminate the message.
- Table of Contents 3
- Introduction 5
- Differences 5
- Chapter 1: Installation 7
- RF Terminal Operation 9
- (requires GWBasic or QBasic) 12
- RF System Setup 14
- RF Configuration 15
- Default Channel 16
- Bar Code Options 17
- RS-232 Settings: 21
- Bluetooth Settings: 22
- Date & Time Setting 23
- Speaker Settings 23
- Laser Options 24
- LCD Options 25
- Other Settings 26
- System Tools 29
- Base and Relay Setup 30
- Operational Theory 31
- How Site Survey works 34
- Performance Issues 35
- Relay Stations 36
- Before you begin programming… 39
- Failure Planning 40
- 2+ Command(s) ** 41
- Command 42
- Command function 42
- Base Station Error Feedback 49
- Byte position 50
- PromptCOM/ActiveX 53
- Concepts - TCP/IP COM 62
- OnTermEndKey 67
- Input method 67
- OnTermSearchKey 67
- Portable Printers 68
- Voice Message Operations 70
- ITEM #01 71
- QUANTITY #02 71
- LOW BATTERIES #98 71
- TRANSMISSION FAILED #99 71
- Troubleshooting 72
- Terminal Error Messages 73
- RF Terminal Problems 75
- Problems reading Bar Codes 75
- Problems with Voice Prompts 76
- If you still have a problem… 76
- RMA #XXXXXX 77
- Worth Data Inc 77
- 623 Swift St 77
- Santa Cruz, CA 95060 77
- 831-458-9938 77
- Appendixes 78
- Channel and Jumper Changes 78
- Adding Relays 80
- RF Serial Pin-outs 84
- Relay Station RS422 Pin-outs 85
- Firmware Upgrades 86
- Code 39 Specifications 87
- Code 93 Specifications 90
- Codabar Specifications 91
- Code 128 Specifications 92
- UPC / EAN Specifications 95
- ISBN 0-553-37062 96
- If the code 97
- Position 97
- 10 digit code 97
- • Data with check digit is: 99
- 943457823 99
- How to scan a bar code 100
- ASCII Code Equivalent Table 102
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