© Nedap N.V.
Nedap Readers Installation Guide
Page 11 of 21
3.3.4.
Wiegand 32
Format:
Facility code:
16 bits:
range: 0..65535
Label number:
16 bits:
range: 1..65535
3.3.4.1.
Wiegand 32 data definition
The Wiegand 32-bit format consists 16 facility code bits, followed by 16 label number code bits. There are no
parity bits. The data is sent in bits. (unsigned binary coded)
The complete message consists of the following:
Bit position :
1234567890123456 7890123456789012
Bit contents :
FFFFFFFFFFFFFFFF NNNNNNNNNNNNNNNN
Legend
:
F :
Facility code (16 bits: range: 0-65535)
N :
Label number (16 bits: range: 1..65535)
3.3.5.
Wiegand 32bin
Format:
Label number:
32 bits:
range: 1..FF FF FF FF
Data is represented in hex, first bit first.
3.3.6.
Wiegand 37
Format:
Label number:
35 bits:
range: 1..34359738368
3.3.6.1.
Wiegand 37 data definition
The Wiegand 37-bit format consists of one number, no facility code. There are 2 parity bits.
The data is sent in bits. (unsigned binary coded)
The complete message consists of the following:
Bit position :
1 23456789 0123456789 0123456789 0123456 7
Bit contents :
P NNNNNNNN NNNNNNNNNN NNNNNNNNNN NNNNNNN P
Parity (even) :
P
12345678 9012345678
(odd) :
1 2345678901 2345678
P
Legend
:
N :
Label number (35 bits)
P :
Even parity over the first 18 bits
Odd parity over the next 18 bits (starts from bit 18)
3.3.7.
Wiegand 64bin
Format:
Label number:
64 bits:
range: 1.. FF FF FF FF FF FF FF FF
Data is represented in hex, first bit first.
3.3.8.
Wiegand 128bin
Format:
Label number:
128 bits: range: 1.. FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Data is represented in hex, first bit first.
