43
UK
Description Byte 2…20, ”Data byte 1…19”:
Dependent on the selected mode this data memory contains command data to send to the evaluation
unit .
Default value “Control byte”: 0x00
Mode: Read UID automatically, antenna field on
PLC process data input image (Module RWH_RW)
Byte no .
Bit
7
6
5
4
3
2
1
0
1
DIAG
DR-RDY
EA
UD
RD-RDY
WR-RDY
AI
TP
2
Data byte 1
3
Data byte 2
. .
…
19
Data byte 18
20
Data byte 19
Description Byte 1, “Status byte”:
Bit
Bit name
Description
0
TP
ID Tag Present
1
AI
Antenna field Inactive
2
WR-RDY
WRite to User data of the ID tag ReaDY
3
RD-RDY
ReaD from the User data of the ID tag ReaDY
4
UD
Mode “Access to the User Data of the ID tag” active
5
EA
Mode “Receive User data on Event change Active”
6
DR-RDY
Diagnostics Read response ReaDY and available in the response buffer .
Coding:
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
7
DIAG
Evaluation unit DIAGnostics occurred, but not yet written in the response buffer . The
response buffer contains still ID tag data . The diagnostics data will be copied in the
response buffer, after detecting that the DR control bit is set by the controller
Description Byte 2…20, ”Data byte 1…19”:
Dependent on the selected mode this data memory contains the response data read from the evaluation
unit or the diagnostics information .
