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45
UK
Description Byte 1, “Status byte”:
Bit
Value
Description
Remark
TP
0
No ID tag detected in front of the Read-/
Write head
-
1
ID tag is detected in front of the Read-/
Write head
Bit is set to 1 as long as the ID tag is detected by the
R/W head . With the channel parameter “data hold time”
the status of the bit can be extended .
AI
0
“Antenna field on” request active
-
RD-RDY
0
No read request started or read request
not ready
Data in Byte 2 … 18 is set to default values 0x00
1
Read request from evaluation unit ready Data in Byte 2 … 18 valid .
DR-RDY
0
No diagnostic read request or diagnostic
data not ready .
-
1
Diagnostics read request from evaluation
unit ready .
Error code:
Byte 2: Number of diagnostic events
Byte 3-6: Diagnostic message 1
Byte 7 . .10: Diagnostic message 2
Byte 11 . .14: Diagnostic message 3
Byte 15 . .18:
Diagnostic message 4
Diag
0
No error detected
-
1
evaluation unit diagnostics available
-
Description Byte 2, ”UID data length read”:
UID data length read . Data length of the UID read from ID tag [bytes] .
Remark: If no ID tag is detected by the Read-/Write head this byte is set to 0x00 .
Description Byte 3 … 6/10/14/18, ”UID data byte”:
Read UID of the ID tag with length of 32/64/96/128 bit . Unused bytes are set to 0x00 . If no ID tag is
detected by the Read-/Write head this data field is set to 0x00 .
Description Byte 19 … 20:
Always set to 0x00 .