User's Manual
Table Of Contents
- TABLE OF CONTENTS
- 1 GETTING STARTED 1
- 2 MECHANICAL SPECIFICATIONS 4
- 3 POWER AND ELECTRICAL INTERFACE 14
- 4 SERIAL AND BUS COMMUNICATIONS 29
- 5 MENU CONFIGURATION 35
- 6 RFID INTERFACE 42
- 6.1 In tro duc tion 42
- 6.2 ABx Er ror Codes 45
- 6.3 Anticollision Com mands 48
- 6.4 ABx Stan dard Pro to col 51
- ABxS Com mand 4 (04H): Fill Tag 51
- ABxS Com mand 5 (05H): Block Read 53
- ABxS Com mand 6 (06H): Block Write 55
- ABxS Com mand 7 (07H): Read Tag Se rial Num ber 57
- ABxS Com mand 8 (08H): Tag Search 58
- ABxS Com mand D (0DH): Con tin u ous Block Read 59
- ABxS Com mand 10 (10H): Set Out put 62
- ABxS Com mand 11 (11H): In put Sta tus 64
- ABxS Com mand 84 (84H): Fill Tag All 66
- ABxS Com mand 85 (85H): Block Read All 68
- ABxS Com mand 86 (86H): Block Write All 70
- ABxS Com mand 87 (87H): Read Tag SN All 72
- ABxS Com mand 88 (88H): Tag Search All 74
- ABxS Com mand 89 (89H): EAS Set/Re set All 75
- ABxS Com mand 8A (8AH): EAS Start/Stop 76
- ABxS Com mand 8D (8DH): Con tin u ous Read All 78
- ABxS Com mand 8E (8EH): Mem ory Lock All 80
- ABxS Com mand 94 (94H): SN Fill 82
- ABxS Com mand 95 (95H): SN Block Read 84
- ABxS Com mand 96 (96H): SN Block Write 86
- ABxS Com mand 97 (97H): SN Block Read All 88
- 6.5 ABx Fast Pro to col 90
- ABx Com mand Packet Struc ture: 90
- Com mand/Re sponse Size 91
- Checksum 92
- ABxF Com mand 4 (04H): Fill Tag 93
- ABxF Com mand 5 (05H): Block Read 95
- ABxF Com mand 6 (06H): Block Write 97
- ABxF Com mand 7 (07H): Read Tag Se rial Num ber 99
- ABxF Com mand 8 (08H): Tag Search 101
- ABxF Com mand D (0DH): Con tin u ous Block Read 102
- ABxF Com mand 10 (10H): Set Out put 105
- ABxF Com mand 11 (11H): In put Sta tus 107
- ABxF Com mand 84 (84H): Fill All 109
- ABxF Com mand 85 (85H): Block Read All 111
- ABxF Com mand 86 (86H): Block Write All 113
- ABxF Com mand 87 (87H): Read Tag SN All 115
- ABxF Com mand 88 (88H): Tag Search All 117
- ABxF Com mand 89 (89H): EAS Set/Re set All 119
- ABxF Com mand 8A (8AH): EAS Start/Stop 121
- ABxF Com mand 8D (8DH): Con tin u ous Read All 124
- ABxF Com mand 8E (8EH): Mem ory Lock All 127
- ABxF Com mand 94 (94H): SN Fill 130
- ABxF Com mand 95 (95H): SN Block Read 132
- ABxF Com mand 96 (96H): SN Block Write 134
- ABxF Com mand 97 (97H): SN Block Read All 136
- 6.6 ABx ASCII Pro to col 140
- Com mand Packet Struc ture: 140
- Com mand/Re sponse Size 141
- Checksum 142
- Ex am ple ASCII Com mand 142
- COM1 LED In di ca tor 145
- DeviceNet In ter face 145
- 7.2 In ter face Board Mon i tor Mode 145
- En ter In ter face Board Mon i tor 145
- 7.2.1 Down loading Firm ware to the In ter face Board 147
- Pro duce size Š ABx Stan dard, 8 Byte Read 154
- Pro duce size Š ABx Fast, 8 Byte Read 155
- Con sume size Š ABx Stan dard, 8 Byte Read 155
- Con sume size Š ABx Fast, 8 Byte Read 156
- LRP830 Trans mit Mes sage Size 156
- LRP830 Re ceive Mes sage Size 157
- En ter In ter face Board Mon i tor 145
- 7.2 In ter face Board Mon i tor Mode 145
- Pro to col: Poll or Strobe 157
- DeviceNet Se rial Num ber 157
- ABx sep a ra tion 158
- ABx Non-separation 158
- Polled Com mands in ABx Non-separation Mode 159
- Er ror Man age ment 159
- Trig ger Fea ture 160
- Buf Flush En able 161
- Buf Flush De lay 161
- Header De vice Type Pro to col 163
- Using DNSW32 or DNSW16 171
- Header For mat 179
- Header De vice Type Com mand Pro to col 182
- Cal cu lating Mes sage Size 183
ABxS Command D (0DH): Continuous Block Read
DESCRIPTION
When in Continuous Block Read mode, the LRP830 sends block reads con
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tinuously to any tag in range of the antenna. When a tag enters the RF field,
it is read and the data passed to the host computer. The LRP830 continues to
read the tag but will not send the same data to the host until the tag has been
outside the RF field for a specified time period. This Delay Between Identi
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cal Decodes feature prevents redundant data transmissions when the
LRP830 is in Continuous Block Read mode.
DISCUSSION
The initiate/cancel Continuous Block Read command contains three param
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eters: read length, start address, and delay between identical decodes. The
read length parameter switches the mode. Any valid, non-zero length (1-48)
will set the LRP830 into Continuous Block Read mode. A read length value
of 00H will turn Continuous Block Mode off.
The Delay Between Identical Decodes value can have a value of 0 to 60
seconds. When the Delay Between Identical Decodes is set to 0, the LRP830
will continuously read AND transmit tag data to the host. This can flood the
buffers and cause communication errors and data loss.
If the LRP830 receives other commands from the host, it will execute them
and then resume Continuous Block Read mode. To exit Continuous Block
Read mode, issue the command with a read length of 0.
In Continuous Block Read mode, the LEDs will display as follows:
LED Behavior Description
ANT LED ON Assumes the Antenna is powered and functioning
CONFIG LED BLINK Tag entered the RF field
RF LED ON A tag has been read and is still in the field
RF LED OFF A read tag has been out of range for the specified time
NOTE:
This command can not be used over a DeviceNet interface.
Copyright © 2000 Escort Memory Systems
LRP830-Series Long-Range Passive Reader/Writer
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