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
If the LRP820 encounters a fault it will respond with the following:
Field
Number of ASCII
Characters Content
Header 2 <STX><STX> (02H, 02H)
Response Size 4 Packet length in bytes excluding the header, response size,
checksum and terminator bytes.
Error Flag 2 FFH
Error Code 2 Hex error code, see Table 11 for details
Checksum 2 Optional checksum
Terminator 1 <ETX> (03H)
Most RF operations will also require additional parameters and data that will
be included in the command stream between the command code or echo and
the terminator.
The Header and Terminator are always STX and ETX respectively. Any
other field value is in ASCII hex notation. Allowed values: '0'-'9', 'A'-'F'. Ex-
ample: the value ABH (decimal 171) in ASCII protocol is transmitted as a
2-character string «AB», i.e. the 2 bytes: 41H 42H (ASCII values for 'A' and
'B'). The hex value of the hex digits given in ASCII are: '0'-'9' = 30H - 39H,
'A'-'F' = 41H-46H.
The sequence for each command is given with the response format in the
preceding section. Referring to the ABx Fast command you can structure the
ABx ASCII commands by using ASCII values for each digit of the hex val-
ues, excluding the header and terminator that are already ASCII characters.
Command/Response Size
The ABx ASCII requires the length of the packet be included in the com
-
mand. All parameters and data between the Command Size and the termi
-
nator or checksum byte must be accounted for in the packet size word. This
includes all command codes and parameters such as field definition for
Block Read/Writes. The packet size remains the same with, or without the
checksum.
Copyright © 2000 Escort Memory Systems
LRP820-Series Long-Range Passive Reader/Writer
139