Command Identifier 0X44: Read Tid - 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)
8.7.8

Command identifier 0x44: Read TID

Reads the TID of a data carrier that is located in the
detection range of the antenna of the read/write head. The
length of the read TID data is defined via parameter
0x0084 – subindex 4 (TID length see page 30).
If there are several data carriers in the detection range, the
desired data carrier must be selected before reading (see
Command identifier 0x40: Select data carrier (Select) on
page 47).
Command:
Subaddress Meaning
0x00 1st bit string
0x01 Command
recognition
... None
0x1F 2nd bit
string
If execution is successful, the response is passed to the
input buffer in the following format:
Response:
Subaddress Meaning
0x00 1st bit string
0x01 TID data
... TID data
... None
0x1F 2nd bit
string
or
Input buffer: Status message
Subaddress Meaning
0x00 1st bit string
0x01 Status code
... None
0x1F 2nd bit
string
50 english
Functional description
0x44: Read TID
No meaning
If the 1st and 2nd bit
strings match, valid data is
present.
Functional description
Transmission of TID data
that was read from the
data carrier.
Transmission of TID data
that was read from the
data carrier.
No meaning
If the 1st and 2nd bit
strings match, valid data is
present.
Functional description
Provides information
about the status of a
request.
No meaning
If the 1st and 2nd bit
strings match, valid data is
present.