UHF-Reader
Manual
ID ISC.ANT.U500/270 - DM
FEIG ELECTRONIC GmbH
Page 107 of 117
H71011-0e-ID-B.docx
12.4. [0x22] Read Buffer
The command Read Buffer reads a number of data sets from the data buffer.
Host
Reader
Byte
1
2
3
4
5
6 .. 7
8 .. 9
Contents
STX
(0x02)
MSB
ALENGTH
LSB
ALENGTH
COM-ADR
[0x22]
DATA-SETS
CRC16
Host
Reader
Byte
1
2
3
4
5
6
7
(8)
Contents
STX
(0x02)
MSB
ALENGTH
LSB
ALENGTH
COM-
ADR
[0x22]
STATUS
25
TR-
DATA1
TR-
DATA2
8 .. 9
(9 .. 10)
10 .. n-2
(11 .. n-2)
n-1, n
DATA-
SETS
DATA
CRC16
DATA-SETS:
Number of data sets to be transferred from the data buffer. If the data buffer does not con-
tain the requested number of data sets, the Reader responds with all available data sets
and an error will occur.
TR-DATA1:
Indicates which data are transferred in the DATA field.
Bit
7
6
5
4
3
2
1
0
Function
ExFlag
DATE
TIMER
Byte
Order
-
DB
IDD
IDD
= Identifier Data (EPC or EPC+TID)
DB
= data block
Byte Order
= b0:MSB first, b1:LSB first
DATE =
Date stamp from internal system timer
TIMER
= Time stamp from internal system timer
ExFlag
= Extension flag, if b1= TR-DATA2 will be send
25
