5. SYSTEM MODE
EM18-33031
5.10 RFID
5-72
5.10.4 UHF SETTING
The parameters related to UHF setting are set.
The menu structure of UHF SETTING
Menu item
<7>RFID
UHF
SETTING
POWER
LEVEL
Q
VALUE
AGC
THRESHOLD
WRITE AGC THRESHOLD
WRITE RETRY MIN AGC
CALIB.
MODE
CALIB.
AGC
CALIB.
POSITION
ANTENNA
POSITION
5.10.4.1 POWER
LEVEL
Radio output level of UHF is set.
Max.
value
Min. value
Step
Display
Sign
Integer
digit
Decimal
place
0-padding
Unit of
measure
See Note 1. See Note 1.
1 Decimal
None 3
0 None None
NOTES
:
1. The maximum and minimum values vary depending on the module type.
Max. value
Min. value
Initial value
B-EX700-RFID-U4-R
B-EX700-RFID-U4-EU/US/AU-R
18 0 18
2. The range of output level is 18 (approx. 100mW) to 0 (approx. 1mW).
5.10.4.2 Q VALUE
Max.
value
Min. value
Step
Display
Sign
Integer
digit
Decimal
place
0-padding
Unit of
measure
15 0 1
Decimal
None
2 0
None
None
In the case multiple RFID tags are read at the same time, this menu is useful to focus on a target tag.
Set the Q value to “1” or above (2 is recommended). Q value “0” causes the tags to interfere with each
other and disables proper data write.
When the Q value is set, set an AGC threshold for data write and an AGC threshold lower limit for retry,
also. Setting all these values enables writing data to a tag placed just above the antenna.
Actually, the problem of reading multiple tags at the same time does not occur with most RFID tag
types. It is not necessary to change the default setting of “0”.
NOTE
: This is effective only for the following modules:
・
B-EX706-RFID-U4-R
・
B-EX706-RFID-U4-EU/US/AU-R