C
HAPTER
3
RFID
T
AG
R
EADER
ALH-900
X
U
SER
’
S
G
UIDE
DOC.
CONTROL
#8102114-000
REV
E
29
When there are many tags in the field, the Basic Access tab can have difficulty reading all of the
data from the same tag when you click the Read All button. To make sure that you are accessing
the same tag throughout the operation, you should set a tag mask, using the yellow Mask button at
the top-left corner of the screen. Also, when the tag has some of its memory fields locked with an
access password, you must provide that same password as part of the access operation in order
for it to succeed. You use the violet Pwd button at the top-right corner to do this.
Pressing the small green buttons
labeling each memory field will cause
the reader to only read data from that
field.
Pressing the red “write” buttons cause
the reader to write the shown data to the
tag. You can edit the data in the field
before writing it to the tag. The field
turns orange while writing, and then
turns white or red, depending on the
success of the write operation.
The yellow Mask button lets you restrict
the reader to only access one tag at a
time.
The violet Pwd button opens up a dialog
window where you can enter in an
Access Password, for accessing tag
memory that may have been locked.