Protocols for controlling the reader
7.5 [0x69] RF Reset
RF290R
Configuration Manual, 09/2014, C79000-G8976-C377-01
51
Name
Description
Bit
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Function
-
-
-
-
-
-
-
-
-
-
-
-
ISO
156
93
-
-
-
RX-BUF
RX-BUF is the maximum size of the receive buffer of the reader. If a protocol from the host exceeds the RX-
BUF size, the reader responds with 0x81 protocol length error.
TX-BUF
TX-BUF is the maximum size of the send buffer of the reader. The host needs to take into account that a re-
sponse protocol of the reader can have this length.
DEV_ID
Individual device identifier of the reader.
7.5
[0x69] RF Reset
The antenna field of the reader can be turned off with the command "RF Reset" for t
rf
= 15
ms. All transponders within the antenna field of the reader are reset to their basic settings.
Table 7- 9
Host
→ reader
Byte
1
2
3
4
5
6, 7
Content
STX
MSB ALENGTH LSB ALENGTH
COM-ADR
[0x69]
CRC16
Default
0x02
-
-
-
-
-
Table 7- 10
Reader → host
Byte
1
2
3
4
5
6
7, 8
Content
STX
MSB
ALENGTH
LSB
ALENGTH
COM-ADR
[0x69]
STATUS
1)
CRC16
Default
0x02
-
-
-
-
-
-
1)
You will find further information in the Appendix (Page 103).
Note
Effects
After the "RF Reset" command, the reader cannot receive any new transponder until the
time t
rf
has expired.
After the "RF Reset" command, transponders within the antenna field must be selected
again.
The response to this command is sent after a successful reset.