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BIS U-6127-081-1_4-06-ST36
Processor unit
8
007 protocol (continued)
8.10
Edit data carrier
Command identifier 'z': Select data carrier (Select)
If there are several data carriers in the detection range of
an antenna, a single data carrier can be selected for further
processing. The desired data carrier is masked via an ID.
The data which is used as the ID can be defined via the ID
type field.
When selecting by EPC or TID, the ID block must be filled
with the corresponding data. The format in the ID block is
the same as the format with which the device outputs the
IDs with the Detect data carriers command. The selection
data for the ID is always valid from the beginning of the ID.
However, a shorter length can be specified in the Number
of bytes ID field to select entire ID ranges (e.g. only the first
4 bytes of the ID must match).
In case of a selection according to a part of the user data,
the ID block should be filled with 00
data should be provided in the User data section. Here,
both the start of the selection area (address) and the length
(number of bytes) can be selected.
Byte
Length
Command
element
00
1
Command
identifier (ASCII)
01
1
Antenna number
(ASCII)
02
1
ID type
03
64
ID-Block
66
6
Address (ASCII)
71
6
Number of bytes
(ASCII)
76
No. of
User data, only
bytes
for ID type 'U'
Last
1
BCC
byte
www.balluff.com
and the selection
hex
Value range
'z'
'0': All antennas
'1'...'4': Single
antenna
'E': EPC
'T': TID
'U': USER
See ID block
"000000"...
"999999", for ID
type 'E' or 'T'
always enter
"000000"
"000000"...
"999999", for ID
type 'E' or 'T'
always enter
"000000"
Byte:
00
...FF
hex
hex
00
...FF
hex
hex
ID-Block
The ID block contains the ID and a length field and is
transferred in the following format:
Byte
Length
Command
element
00
1
Number of bytes
ID
01
1
Reserved
02
Number
ID (LSB...MSB)
of bytes
ID
Status message:
Byte
Length
Command
element
00
1
Status
01
1
Status code
Command identifier 'n': Deselect data carrier
(unselect)
Deletes the data carrier selection previously made with the
S
command. The command has no
elect data caRRieRS
effect if there is no selected data carrier in the detection
range of the specified antenna.
Byte
Length
Command
element
00
1
Command
identifier (ASCII)
01
1
Antenna number
(ASCII)
Last
1
BCC
byte
Status message
Byte
Length
Command
element
00
1
Status
01
1
Status code
Value range
00
...FF
hex
hex
00
hex
Byte:
00
...FF
hex
hex
Value range
<ACK> or
<NAK>
See table Status
codes on page
94
Value range
'n'
'0': All antennas
'1'...'4': Single
antenna
00
...FF
hex
hex
Value range
<ACK> or
<NAK>
See table Status
codes on page
94
english
105
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