Brooks LF80C - Page 69

Brooks Automation
278580 Revision A 57
LF80C ZeniD RFID Reader 7 Operation
Product Manual 7.2 Operation of the ASC-I1 Protocol
J - Request tuning
settings of RF
module
Command J requests the current setting of the tuning capacitors. The
response message contains the current status of the capacitors in
hexadecimal format.
Each capacitor can be addressed by one bit. This bit is used to activate (1)
or disable (2) a capacitor.
Parameter structure from C
0
to C
5
:
Host → Reader
CMD Reader ID
J1 byte
Reader → Host
CMD Reader ID Tuning
j 1 byte 2 bytes
Hex. value Bin. value Meaning
00 0000 0000 no capacitor is set
3F 0011 1111 all capacitors are set