Microscan MS-820 Manuel d'utilisateur Page 44
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Protocol
3-6 MS-820 Industrial Bar Code Scanner User’s Manual
3–Protocol
Multidrop
Note: See also “Multidrop Communications” on page A-32.
Note: Scanners linking up to a Microscan MS-5000 multidrop concentrator must be
configured in standard multidrop protocol.
User Defined Point-to-Point
User Defined Address
Definition: Multidrop allows up to 50 devices to be connected to a single RS-485
host, with the scanner assigned an unique address (from 01 to 50).
Usage: The MS-5000 can be used as a concentrator to a single host port con-
nection.
When Multidrop is selected, the protocol characters for RES, REQ, etc.
are assigned automatically.
Multidrop
Addresses:
Each address has its own separate poll and select address (from 1C to
7F hex).
Options: 01 through 50
Serial Cmd: If selecting Multidrop (Kf5) an address must be defined and appended
to the command string.
Format: <Kf5,address>
Definition: User Defined Point-to-Point allows the user to customize the point-
to-point protocol.
Usage: Useful for developing custom protocols in polled or unpolled mode.
Serial Cmd: <Kf6,RES,address,REQ,EOT,STX,ETX,ACK,NAK,from host>
Definition: User Defined is considered to be in a polled mode only if an address
has been assigned.
Serial Cmd: <Kf6,RES,address,REQ,EOT,STX,ETX,ACK,NAK,from host>
Default: No address
Options: Any ASCII character except a null.
- Industrial 1
- Bar Code Scanner 1
- User's Manual 1
- Table of Contents 4
- List of Figures 8
- List of Tables 9
- About This Manual 10
- Host Communications 10
- Keystrokes 10
- Approvals 10
- Safety Labels 11
- Warning and Caution Summary 12
- Quick Start 13
- Step 1 — Hardware Required 14
- Step 2 — Connect the System 15
- Step 3 — Install ESP-MP 16
- Step 4 — Select Scanner Model 17
- 1–Quick Start 18
- Chapter 1 Quick Start 19
- Communications 25
- Communications by ESP 26
- Communications 27
- Host Port Parameters 28
- RS422 Status 29
- Auxiliary Port 30
- Tra ns par en t Mode 31
- Half Duplex Mode 32
- Full Duplex Mode 33
- Daisy Chain Mode 34
- 2–Communications 38
- Protocol 39
- Protocol by ESP 40
- Protocol by Serial Command 40
- Protocol 41
- Protocol by Embedded Menu 41
- Point-to-Point with RTS/CTS 43
- Polling Mode D 43
- User Defined Point-to-Point 44
- User Defined Multidrop 46
- Response Timeout 48
- Intercharacter Delay 49
- Output Data Format 50
- Postamble Characters 51
- 3–Protocol 52
- Read Cycle/Trigger 53
- Read Cycle/Trigger by ESP 54
- Read Cycle/Trigger 55
- Trigger Mode 56
- Continuous Read 1 Output 57
- External Trigger Level 58
- External Trigger Edge 59
- Serial Data 60
- Serial Data or External Edge 60
- Trigger Filter Duration 61
- Good Decode Reads 61
- External Trigger State 62
- 4–Read Cycle/Trig 64
- Timeout Duration 65
- Multilabel 66
- Number of Labels 67
- Multilabel Separator 68
- Code Types by ESP 70
- Code Types by Serial Command 71
- Code Types by Embedded Menu 72
- Narrow Margins 73
- Symbology ID 74
- Background Color 75
- Code 39 Status 76
- Check Digit Status (Code 39) 76
- Check Digit Output (Code 39) 76
- Fixed Code Length (Code 39) 77
- Full ASCII Set (Code 39 78
- Codabar Status 79
- Fixed Code Length (Codabar) 80
- Check Digit Type (Codabar) 81
- Check Digit Output (Codabar) 81
- Interleaved 2 of 5 82
- Chapter 5 Codes 83
- UPC Status 84
- EAN Status 84
- Separator Status (UPC/EAN) 85
- Separator Character (UPC/EAN) 86
- Supplementals Type (UPC/EAN) 86
- PDF417 Status 87
- Fixed Code Length (PDF417) 87
- (PDF417) 88
- Code 128 89
- UCC/EAN-128 90
- Code 93 Status 93
- Fixed Code Length (Code 93) 93
- AIAG Identifiers 95
- Autodiscriminate 96
- Scanner Setup 97
- Scanner Setup by ESP 98
- 6–Scanner Setup 100
- Scanner Type 101
- Scan Speed 102
- Gain Adjustment 103
- AGC Sampling 104
- Scanner Setup 105
- AGC Minimum 105
- AGC Maximum 105
- Transition Counter 106
- Matchcode 107
- Matchcode by ESP 108
- Matchcode by Serial Command 108
- Matchcode 109
- Matchcode by Embedded Menu 109
- Overview of Matchcode 110
- Matchcode Type 111
- Sequential Matching 112
- Match Start Position 112
- Match Length 113
- Wild Card Character 113
- Sequence On Noread 114
- Sequence On Mismatch 115
- Master Label Database 116
- Enter Master Label Data 117
- 7–Matchcode 118
- Delete Master Label Data 119
- New Master Pin 121
- 8–Outputs 123
- Chapter Contents 123
- Outputs by Serial Command 124
- Outputs by Embedded Menu 124
- Outputs 125
- Output Data by ESP Menu 125
- Message Output 126
- Noread Message 127
- Bad Bar Code Message 128
- No Bar Code Message 129
- Bar Code Output 130
- When to Output Bar Code Data 131
- End of Read Cycle 132
- Laser Control 133
- Laser Off Percentage 134
- Serial Verification 135
- Control/Hex Output 136
- Beeper Status 137
- Partial Output 138
- Operation Command Output 139
- Discrete I/0 141
- Discrete I/O by ESP Menu 142
- Discrete I/0 143
- Output 1 144
- Active State 145
- Pulse Width 145
- Number Before Output 145
- Output 2 146
- Output 3 146
- Diagnostics 147
- Diagnostics by ESP Menu 148
- Diagnostics by Serial Command 148
- Diagnostics 149
- Diagnostics by Embedded Menu 149
- Warning Messages 150
- Laser High Warning 151
- Laser Low Warning 152
- NOVRAM Corrupt Warning Status 153
- High Temperature Threshold 154
- Low Temperature Threshold 155
- Lifetime Hours 156
- Powerups 158
- Time Since Last Reset 159
- 10–Diagnostics 160
- Utilities 161
- Utilities by ESP Menu 162
- Utilities 163
- Utilities by Serial Command 163
- 11–Utilities 164
- File Transfer 165
- Counters 166
- Part Number 168
- Checksum 169
- Read Rate 170
- Device Control 172
- Code Type 173
- Appendices 175
- Figure A-1 MS-820 Dimensions 176
- Table A-1 MS-820 Read Ranges 177
- Appendix A 178
- LED Indicators 178
- Safety Certifications 178
- Electrical Specifications 179
- Pin Assignments 179
- Optoisolator Outputs 180
- Optoisolator Inputs 182
- IB-131 Interface Module 183
- Scanner to IB-131 184
- Multidrop 185
- Daisy Chain 185
- Appendix D 186
- Serial Configuration Commands 187
- Serial Command Format 189
- Serial Utility Commands 189
- Control Characters 190
- Appendix F — ASCII Table 191
- Appendix F 192
- Appendix G — Embedded Menus 193
- Defaulting 194
- Appendix H 196
- Initializing 197
- Loss of Communications 197
- Position Object Detector 199
- With a Static Label 200
- Number of Decodes 200
- With a Moving Label 200
- Direction of label travel 201
- Scan Line 201
- Appendix M — Operational Tips 204
- Interface Standards 205
- Appendix O 206
- Multidrop Communications 207
- Polling Sequence 208
- Select Sequence 209
- Glossary of Terms 211
- Appendix P 212
- Wild Card Character 7-7 222
- Windows NT i-ix 222
- Zero Position 6-4 222
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