Command Identifier 0X43: Write Epc - Balluff BIS U-4A7-082-01C-07-S4 Betriebsanleitung

BIS U-4A7-082- _1C-07-S4
Industrial RFID system - Read/write head
8
System integration (continued)
8.7.7

Command identifier 0x43: Write EPC

Write EPC data to a data carrier located in the detection
range of the antenna of the read/write head.
The size of the EPC memory area can be defined via
Number of bytes.
If the command is executed without a
preceding Select and there is more than one
data carrier in front of the antenna, then the
command is acknowledged with the status
code Multiple-Tags.
The EPC can have a length of 2...62 bytes,
whereby the number of bytes must be even.
Command:
Subaddress Meaning
0x00 1st bit string
0x01 Command
recognition
0x02 Number of
bytes
... None
0x1F 2nd bit
string
Data is accepted from the processor unit only after the
command has been accepted by the processor unit and
acknowledged.
Data:
Subaddress Meaning
0x00 1st bit string
0x01 EPC data
0x02 EPC data
... None
0x1F 2nd bit
string
www.balluff.com
Functional description
0x43: Write EPC.
Number of bytes of the
EPC to be written.
No meaning
If the 1st and 2nd bit
strings match, valid data is
present.
Functional description
Transfer of the EPC data
to be written to the data
carrier.
Transfer of the EPC data
to be written to the data
carrier.
No meaning
If the 1st and 2nd bit
strings match, valid data is
present.
Input buffer: Status message
Subaddress Meaning
0x00 1st bit string
0x01 Status code
... None
0x1F 2nd bit
string
Functional description
Provides information
about the status of a
request.
No meaning
If the 1st and 2nd bit
strings match, valid data is
present.
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