Balluff BIS U-6028-048-104-06-ST28 Betriebsanleitung Seite 72

BIS U-6028-048-1_4-06-ST28
Processor unit
8
Function of the device (continued)
Command designator 40
selection for multi-tagging)
Sub- Meaning
address
00 1st bit
hex
string
01 Command 40
hex
recognition data carrier to be used for
further processing steps such as
reading or writing)
02 Type 0 = EPC (other values currently
hex
not supported)
03 Number of Number of bytes of the data
hex
bytes carrier identifier (EPC) that is
transmitted in following cycles.
04 Reserved Reserved for expansions; please
hex
set to 0.
05 Reserved Reserved for expansions; please
hex
set to 0.
06 Reserved Reserved for expansions; please
hex
set to 0.
... None No meaning
Last 2nd bit If first and second bit strings
byte string agree, there is valid data
present.
Data of the data carrier identifier is accepted from the
processor unit only after the command has been accepted
by the processor unit and acknowledged.
Sub- Meaning
address
00 1st bit
hex
string
01 Data 1st byte of the data carrier
hex
identifier (EPC or TID)
... Data Other bytes of the data carrier
identifier (EPC or TID)
... is continued, if necessary, in
further buffer transmissions until
the total number of bytes is
reached.
Last 2nd bit If first and second bit strings
byte string agree, there is valid data
present.
After the Select command, read/write commands
(command designators 01
42 , 43 , 44 , 81 , 82
hex hex hex hex
antenna are run only on the designated data carrier, if it is
available.
28 english
: Select (data carrier
hex
Functional description
: Select tag (selection of the
hex
Functional description
, 02 , 03 , 04 , 05 , 32
hex hex hex hex hex
, B2 ) for the corresponding
hex hex
If the selected data carrier is not in the field of the antenna
at the moment, the Select command is processed without
errors anyway, but following read/write commands return
an error with status code 01
If the selected data carrier identifier is present on multiple
data carriers, the following commands are run as follows:
– Read commands are run on one data carrier, which is
randomly selected from the suitable data carriers.
– Write commands are run on all suitable data carriers.
,
hex
(no data carrier).
hex