26 Bit Format
The standard 26 bit Wiegand format is H10301. The format consists of 2 parity bits, 8 bit Facility Code and 16 bit Cardholder ID fields.
PFFFFFFFFCCCCCCCCCCCCCCCCP
EXXXXXXXXXXXX.............
.............XXXXXXXXXXXXO
P = Parity
O = Odd Parity
E = Even Parity
X = Parity mask
F = Facility Code, range = 0 to 255
C = Cardholder ID, range = 0 to 65,535
| Card Type | Wiegand |
| Number of Bits | 26 |
| Number of bits to sum for Even Parity | 13 |
| Even Parity start | 0 |
| Number of bits to sum for Odd Parity | 13 |
| Odd Parity start | 1 |
| Number of Facility Code bits | 8 |
| Facility Code start | 1 |
| Number of Cardholder ID bits | 16 |
| Cardholder ID start | 9 |
| Number of Issue Code bits | 0 |
| Issue Code start | 0 |