User's Manual
Table Of Contents
- TABLE OF CONTENTS
- 1 GETTING STARTED 1
- 2 MECHANICAL SPECIFICATIONS 4
- 3 POWER AND ELECTRICAL INTERFACE 14
- Power from the MUX32 bus and from an ex ter nal power sup ply 26
- 3.9 LED In di ca tors 27
- 4 SERIAL AND BUS COMMUNICATIONS 29
- 5 MENU CONFIGURATION 34
- 6 RFID INTERFACE 41
- 6.1 In tro duc tion 41
- 6.2 ABx Er ror Codes 44
- 6.3 Anticollision Com mands 47
- 6.4 ABx Stan dard Pro to col 49
- ABxS Com mand 4 (04H): Fill Tag 49
- ABxS Com mand 5 (05H): Block Read 51
- ABxS Com mand 6 (06H): Block Write 53
- ABxS Com mand 7 (07H): Read Tag Se rial Num ber 55
- ABxS Com mand 8 (08H): Tag Search 56
- ABxS Com mand D (0DH): Con tin u ous Block Read 57
- ABxS Com mand 10 (10H): Set Out put 60
- ABxS Com mand 11 (11H): In put Sta tus 62
- ABxS Com mand 84 (84H): Fill Tag All 64
- ABxS Com mand 85 (85H): Block Read All 66
- ABxS Com mand 86 (86H): Block Write All 68
- ABxS Com mand 87 (87H): Read Tag SN All 70
- ABxS Com mand 88 (88H): Tag Search All 72
- ABxS Com mand 89 (89H): EAS Set/Re set All 73
- ABxS Com mand 8A (8AH): EAS Start/Stop 75
- ABxS Com mand 8D (8DH): Con tin u ous Read All 77
- ABxS Com mand 8E (8EH): Mem ory Lock All 79
- ABxS Com mand 94 (94H): SN Fill 81
- ABxS Com mand 95 (95H): SN Block Read 83
- ABxS Com mand 96 (96H): SN Block Write 85
- ABxS Com mand 97 (97H): SN Block Read All 87
- 6.5 ABx Fast Pro to col 89
- ABx Com mand Packet Struc ture: 89
- Com mand/Re sponse Size 90
- Checksum 91
- ABxF Com mand 4 (04H): Fill Tag 92
- ABxF Com mand 5 (05H): Block Read 94
- ABxF Com mand 6 (06H): Block Write 96
- ABxF Com mand 7 (07H): Read Tag Se rial Num ber 98
- ABxF Com mand 8 (08H): Tag Search 100
- ABxF Com mand D (0DH): Con tin u ous Block Read 101
- ABxF Com mand 10 (10H): Set Out put 104
- ABxF Com mand 11 (11H): In put Sta tus 106
- ABxF Com mand 84 (84H): Fill All 108
- ABxF Com mand 85 (85H): Block Read All 110
- ABxF Com mand 86 (86H): Block Write All 112
- ABxF Com mand 87 (87H): Read Tag SN All 114
- ABxF Com mand 88 (88H): Tag Search All 116
- ABxF Com mand 89 (89H): EAS Set/Re set All 118
- ABxF Com mand 8A (8AH): EAS Start/Stop 120
- ABxF Com mand 8D (8DH): Con tin u ous Read All 123
- ABxF Com mand 8E (8EH): Mem ory Lock All 126
- ABxF Com mand 94 (94H): SN Fill 128
- ABxF Com mand 95 (95H): SN Block Read 130
- ABxF Com mand 96 (96H): SN Block Write 132
- ABxF Com mand 97 (97H): SN Block Read All 134
- 6.6 ABx ASCII Pro to col 138
ABxF Command 5 (05H): Block Read
DESCRIPTION
Reads a block of data from an RFID tag.
DISCUSSION
This command is used to read segments of data from contiguous areas of tag
memory. It is capable of handling up to 48 bytes of data transferred to the
host. The timeout value is given in 1 msec increments and can have a value
of 1EH to FFFEH (65,534 ms). When the timeout is set to 0, the LRP820
will return a syntax error.
The Block Read consists of a start address and length, followed by a timeout
value and a message terminator as shown below.
Field Content
Header <STX><STX>
Command Size Packet length in bytes excluding the header, command size, checksum and
terminator bytes. 0007H for this command
Command 05H
Start Address 2-byte value for the starting tag address
Block Size 2-byte value for the length of the read in number of bytes
Timeout 2-byte value for timeout in 1 ms units. (1EH - FFFEH)
Checksum Optional Checksum
Terminator <ETX>
Copyright © 2000 Escort Memory Systems
94 LRP820-Series Long-Range Passive Reader/Writer