Toshiba B-EX6 Series - Agc Threshold; Write Agc Threshold; Write Retry Min Agc

5. SYSTEM MODE EM18-33031
5.10 RFID
5-73
5.10.4.3 AGC THRESHOLD
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
When the obtained gain of an RFID tag is lower than the AGC threshold, the tag is considered as an
error tag even if a data write succeeds.
When the AGC threshold is set to “0”, all tags are writable.
When this parameter is set to “8”, for example, tags with the AGC threshold level of 7 or less are
considered as error tags.
The optimum value is different depending on the tag types.
NOTE: This is effective only for the following modules:
・ B-EX700-RFID-U4-R
・ B-EX700-RFID-U4-EU/US/AU-R
5.10.4.4 WRITE AGC THRESHOLD
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
When the Q value is set to 1 or above, the AGC threshold for data write becomes effective.
When the obtained gain of an RFID tag is lower than the AGC threshold for data write, a data write
operation is not performed. In other words, setting an AGC threshold for data write enables writing
data only to a tag placed just above the antenna.
Supposing that the gain of a tag just above the antenna is 14 and that of a tag off the antenna is 7,
setting the threshold to 11 (a value between 8 and 14) enables the printer to write data only to the tag
just above the antenna.
When the threshold is set to 0, a data write operation is performed regardless of the gain of a tag.
Both of the AGC threshold and the AGC threshold for data write are used to determine whether a tag
is defective or not, but the timing of a gain measurement is different. In the case of the AGC threshold,
this is performed after data is written to a tag. On the contrary, when the AGC threshold for data write
is effective a measurement is performed before data is written. And if a gain value is lower than the
threshold, a data write operation is not performed.
The optimum value differs depending on the tag type.
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
5.10.4.5 WRITE RETRY MIN AGC
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
When the Q value is set to 1 or above, the AGC threshold lower limit for retry becomes effective.
In the case the printer could not find any tag whose gain is over the AGC threshold for data write, the
AGC threshold is lowered to the highest gain of the detected tags whose gains are over the AGC
threshold lower limit for retry specified with this parameter.