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
J
1 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