Brooks Automation
278580 Revision A
55
LF80C ZeniD RFID Reader
7 Operation
Product Manual
7.2 Operation of the ASC-I1 Protocol
L - Lock a page of the
transponder
An individual page of a multipage transponder can be locked (read only).
If the page of the transponder could not be locked, the writing action is
repeated automatically (
Î
Parameter 3 (0x03) and
Î
Parameter 4 (0x04)).
If the page still could not be locked, an error message NoTag (4) is sent to
the host. If the page was already locked, the successful feedback follows
just as at the first locking.
If the sensor check is activated, the status of a floating contact connected
to the external input is checked before a reading process (writing process)
is triggered. If the sensor is not triggered, the error message "NOTAG" is
sent; otherwise the lock process is started.
Host
→
Reader
CMD
Reader ID
Page
L
1 byte
2 bytes
Reader
→
Host
CMD
Reader ID
l
1 byte
ATTENTION
A locked page cannot be unlocked. This page is locked permanently.
