GAT Access 6100 Terminal Series
Commissioning & Configuration
62
HB_GAT-ACCESS6100--EN_14
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- Position on Card:
Number of the user defined segment.
- Block Number:
Number of the block that shall be read within the user defined segment.
- Mask:
The data, which is read from the defined block on the data carrier, is combined with
logical AND with this Mask value to determine which value is relevant for comparison
with the Result value (see next field).
- Result:
The result of the AND calculation of the read data and the Mask value are compared with
this Result value. If both values match, access is granted. If not, access is denied.
In the previous example,
the Mask value of "00000000FFFFFF000000…" means that the first 4 bytes of the read
data are not relevant (Mask value is entered in hex, i.e., 8 digits = 4 bytes with all bits set to "0"). The next 3 bytes
are relevant ("FFFFFF" = 3 bytes with bits set to "1") with the remaining bytes again not relevant. This means
that all data carriers, which have the information "M36” in ASCII or "4D3336" in hex value at position 5 to 7 of the
read data, have access permission.
Summary of Contents for GAT ACCESS 6100
Page 10: ...GAT Access 6100 Terminal Series Table of Contents 10 HB_GAT ACCESS6100 EN_14 www gantner com ...
Page 34: ...GAT Access 6100 Terminal Series Installation 34 HB_GAT ACCESS6100 EN_14 www gantner com ...
Page 80: ...GAT Access 6100 Terminal Series Operation 80 HB_GAT ACCESS6100 EN_14 www gantner com ...
