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R&D
Idesco EPC Anticollision – User Manual
Version 1.00
Public
Data
FF
16
21
00 00
10
00 14
11
00 BB 5F 04
01 23 45 67 89 AB CD EF
01 23 45 67
E6 C8
9D D1
21 (52)
Length
1 byte
1 byte
1 byte
2 bytes
1 byte
2 bytes
1 byte
4 bytes
12 bytes
Description
Header
Length of data field
Command code
Status
Option
Meta Data flags
Antenna ID
Time Stamp
Tag EPC
2 bytes
2 bytes
Tag CRC
CRC
Here is another example request and response showing the use of Tag Singulation/Select Functionality and getting the tag Meta Data for the specified tag. Note the Options Field includes the Select
Options and bit 4 is set indicating the Meta Data flags follow. This command requests the same tag
read Meta Data as the previous example (Antenna ID and Timestamp) except now it is selecting a
tag with a specific EPC value (EPC=0x111122223333444455556666), which requires adding the
appropriate Tag Singulation Fields after the Read Tag Single Get EPC and Meta Data Request
Fields along with updating the Option field to set the appropriate flag for the tag singulation based on
EPC value
FF 12 21 01 E8 11 00 14 60 11 11 22 22 33 33 44 44 55 55 66 66 9F CE
Data
FF
12
21
01 E8
11
00 14
60
11 11 22 22 33 33 44 44 55
55 66 66
9F CE
Length
1 byte
1 byte
1 byte
2 bytes
1 byte
2 bytes
1 byte
12 bytes
Description
Header
Length of data field
Command code
Timeout
Option
Meta Data flags
Select data length
Select data (EPC)
2 bytes
CRC
The response contains the requested Meta Data and the tag EPC matching the requested tag EPC:
FF 16 21 00 00 11 00 14 22 0F C8 CD B7 11 11 22 22 33 33 44 44 55 55 66 66 18 35 FE 7D
Data
FF
16
21
00 00
11
00 14
22
0F C8 CD B7
11 11 22 22 33 33 44 44 55
55 66 66
18 35
Author: Pah
Approved: Ara
Length
1 byte
1 byte
1 byte
2 bytes
1 byte
2 bytes
1 byte
4 bytes
12 bytes
Description
Header
Length of data field
Command code
Status
Option
Meta Data flags
Antenna ID
Time Stamp
Tag EPC
2 bytes
Tag CRC
File: C00360E
Date: 28.06.2011
Printed: 07.07.2011
Idesco Oy | Teknologiantie 9, FIN-90590 OULU | Tel +358 20 743 4175 | [email protected] | www.idesco.fi