Technical information

10/29/2014
Page 12 of 72
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2
Indicates a continuation of a file download; data contains the next portion of the file data.
(The Reader will not send any response.)
5
Indicates the end of a regular file download; data contains the name of the file, which is from 1
to 200 letters, digits, periods, hyphens, and underscores, terminated with ASCII NUL.
(The Reader will respond with d, e, or f.)
9
Requests the Reader to delete a file from its storage; data contains the file name, terminated
with ASCII NUL.
;
Reserved (no operation – treated as a comment)
<
Causes the Reader to send a list of saved Reader settings (no data)
(The Reader will respond with d containing a space-separated list of all setting values (in order,
expressed as hexadecimal ASCII characters) or with e.)(see ‘,’ command for current Reader
settings)
=
Puts setting directly to Reader’s non-volatile memory so that it will take effect upon next reboot;
data is as defined in the / command; the specified integer replaces the existing setting value.
Note: this command can be used to set communication modes without losing communication
during the process.
(The Reader will respond with d or e.)
Note: The = command does not save changes immediately but those settings will be applied
after a reboot. If you issue an =(2B)0 command to change the value of register 2B from 1, then
until you reboot the value of 2B will still be 1. After you reboot the reader, the value of the 2B
register will be 0 when the reader is ready again. In order to have that setting be immediate and
survive a reboot you must either issue a P then a W command or use the newer C command.
C(2B)0 is the same as these two commands combined: P(2B)0, W
The = command is most useful to ‘pre-set’ a new communication mode that will become active
after a reboot.
(The Reader will respond with d or e.)
Note: Also see commands O, P, Q, /, =, W. See Section 8 for possible Reader settings.
>
Causes the Reader to send a string of text to the Host as a z packet;
data contains the text to send.
(The Reader will respond with a z packet containing the text.)