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HS-21/HS-41X Handheld Reader User’s Manual A-17
Appendices
Appendix D — Serial Commands
Text Commands
Text commands may be sent to the reader in RS-232 or USB Virtual COM mode using any
serial communications software, e.g., ESP Terminal.
Encoded-data is decoded by the reader by replacing %xx by a single byte with the value
specified by the two hex-digits xx, e.g., %25 would be replaced by character number 0x25,
which is ASCII ‘%’.
text-command: command-type encoded-dataopt carriage-return
command-type: Single ASCII character in the set defined in Command Types.
encoded-data: encoded-datum / encoded-data encoded-datum
encoded-datum: printable-character | % hex-digit hex-digit
printable-character: any byte value in the range [0x20,0x7e]
hex-digit: ‘0’ | ‘1’ | ‘2’ | ‘3’ | ‘4’ | ‘5’ | ‘6’ | ‘7’ | ‘8’ | ‘9’ |‘A’ | ‘B’ | ‘C’ | ‘D’ | ‘E’ | ‘F’
| ‘a’ | ‘b’ | ‘c’ | ‘d’ | ‘e’ | ‘f’
carriage-return: 0x0d
In order to eliminate inadvertent commanding of the reader, Text Commands are
disabled by default. To enable Text Commands requires an initial sequence: ;>PAx
where x is as defined in the Reader Settings Table, register setting 41. (Note: ‘A’ is the
ASCII character that corresponds to 41 HEX.)
For example, to send the reader commands by typing commands in ESP Terminal:
;>PA1
P(xx)yy
P(xx)yy
~
PA8
Where ;>PA1 enables text commands with echo and command responses; P%xxyy can
be any desired commands; ~ saves the settings just sent (the ~ command saves all but
communication-related settings); and PA8 turns text commands back off (except for the
initial sequence). (Note: ‘A’ is the ASCII character that corresponds to 41 hex, thus
P%418 would be equivalent.)
Note: ;>PA1 is used for interactive text commands. If the commands are to be saved in a
file and sent non-interactively, use ;>PA7 instead; this enables text commands but disables
echo and command responses. (See Command Types, Reader Settings, and CRB
System for additional information.)
The following two examples can be sent to a reader in RS-232 mode from ESP Terminal
by just typing the example text.
- HS-21/HS-41X Handheld Reader 1
- User’s Manual 1
- Disclaimer 2
- Latest Manual Version 2
- Technical Support 2
- What Is Covered? 3
- What Is Excluded? 3
- Limitation of Liability 3
- Table of Contents 4
- Introduction 5
- Highlighting 6
- About This Manual 6
- Statement of RoHS Compliance 8
- 1 Quick Start 9
- Check Required Hardware 10
- USB Interface 11
- RS-232 Interface 12
- Install ESP 13
- Select Model 14
- Click the Show 16
- Connect Symbol 16
- Configure the Reader 17
- Save Changes in ESP 18
- 2 Using ESP 19
- Application Mode 21
- Tree Controls 22
- Menu Toolbar 23
- New Model 24
- Preferences > General Tab 25
- Preferences > Terminal Tab 26
- Sizing Information 27
- Preferences > Advanced Tab 28
- Use Default Storage Location 29
- Document Memo 30
- Model Memo 30
- Connection Wizard 31
- Bar Code Dialog 32
- Send/Receive 33
- Default Current Menu Settings 34
- Default all ESP Settings 34
- Advanced Options 34
- 3 Basic Operations 35
- Practice Targeting 36
- Motion Detect Mode 37
- Dual Optics 38
- Dual Optics Examples 39
- Operational Feedback 40
- 4 Communications 41
- Communications by ESP 42
- Communications Overview 43
- Parity (RS-232) 46
- Data Bits (RS-232) 46
- Preamble 47
- Postamble 48
- Preamble and Postamble by ESP 49
- Keyboard Mapping 50
- Communications Mode 51
- Text Commands 52
- Text Commands by ESP 52
- USB Keyboard Rate 53
- Baud Rate 54
- Stop Bits 54
- Data Bits 54
- Text Command Timeout 55
- 5 Read Cycle 57
- Read Cycle by ESP 58
- External Trigger 59
- Default Continuous Event 60
- Maximum Decodes per Read 61
- Read Cycle Timeout 62
- Read Cycle 63
- Targeting Zone Tolerance 64
- Morphological Preprocessing 65
- Camera Settings 66
- 6 Symbologies 69
- Symbologies by ESP 70
- Data Matrix 71
- Symbologies 73
- Sample Aztec Symbol 73
- Code 39 74
- Code 128 75
- Sample BC412 Symbol 76
- Code 93 77
- Codabar 78
- Interleaved 2 of 5 79
- Pharmacode 82
- GS1 DataBar 84
- Sample PDF417 Symbol 85
- MicroPDF417 86
- Composite 87
- Symbology Identifier 88
- 7 I/O Parameters 89
- I/O Parameters by ESP 90
- No Read Notification 91
- Targeting 92
- Button Stay-Down Time 95
- Motion Detect Event 96
- Image Quality 97
- 8 Advanced Operations 99
- Continuous Read 100
- Mirroring 101
- Motion Detection 102
- Window of Interest 103
- Linear Mode 104
- Terminal 105
- Terminal View 106
- Editing a Macro 109
- Terminal Right-Click Menu 110
- Terminal Dropdown Menu 111
- 10 Utilities 113
- Device Control 114
- Differences from Default 115
- Firmware 116
- ID and Firmware Version 117
- Advanced 118
- Appendices 119
- General Specifications 120
- USB Cable Pinouts 123
- RS-232 Cable Pinouts 123
- Configuration Symbols 124
- Appendix D — Serial Commands 135
- Packetized Commands 136
- Command Types 138
- Simple Protocol 142
- Reader Settings 143
- Binary Dip Switch 144
- Field of Interest 144
- Reader Settings Table 145
- Serial Commands 146
- CRB System 163
- Example CRC16 C Code 163
- Communications Protocol 166
- Appendix F — ASCII Table 167
- Appendix G — Maintenance 168
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