Promag TR510E Manual page 37

Number of Characters, together with From Character setting allows you to
extract and store into the database a portion of code from the User UD-Card
instead of the entire ID-Card code. This way you can adjust the format of the
data generated by the TR510E to the requirements of some specific PC
software. You can also use this Setting to "hide" a certain portion of the ID-
Cards code. This is useful for a simple access control function implementation.
Number of Characters defines the length of the portion of code that will be
extracted from the ID-code starting from the From Character position. The valid
value range for this setting is from 1 to 37. Actual number of extracted
characters can be smaller than that defined by the Number of Characters
Setting. This happens when (From Character + Number of characters – 1) >
length of ID-code. Examples:
If From Character=2 and Number of Characters=3 then ID-code "12345" will
produce "234", and ID-code "123" will result in "23" only.
Default value for this Setting is 37.
Allow/disallow record duplication (group-1 register 8CH)
Set
Command C8C,MM
Reply A
Get
Command B8C
Reply AMMcc
MM- allow/disallow record duplication (00: disallow, 01: allow), cc-checksum
This group 1 register is used to set "allow" or "disallow" record duplication.
When set in "disallow" mode TR510 will check if ID-code and IN/OUT selection
is same as previous record in one minute, if same, the warning message is
indicated by a long beep and "DUPL" displayed by the LED:
TR510E User's Manual
37
Possible error codes: 04, 07
Possible error codes: 04, 07