Wiegand Formats; Wiegand Timing; Wiegand 26 - Nedap Convexs Series Installation Manual And User's Manual

The Wiegand output can be used to connect to Third party systems or to the AEOS APx003 readers with the
appropriate Wiegand protocol.
At AEreco the output format must be configured as: Wiegand and the correct type of Wiegand protocol.
3.3.1.

Wiegand formats

Several Wiegand formats can be used:
-

Wiegand 26

- Wiegand 32
- Wiegand 32bin
- Wiegand 37
- Wiegand 64bin
- Wiegand 128bin
Wiegand data is been sent at D0 and D1, signals are active low.
3.3.2.

Wiegand timing

WDat0
WDat1
Timing:
Tpw Pulse Width Time
Tpi Pulse Interval Time :
3.3.3. Wiegand 26
Format: Facility code:
Label number:
Parity:
3.3.3.1. Wiegand 26 data definition
The Wiegand 26-bit format consists of a parity bit, followed by eight facility code bits, followed by 16 label
number code bits and a final parity bit. The first parity bit shall create even parity when combined with the next
twelve bits. The last parity bit shall create odd parity when combined with the remaining 12 bits.
The data is represented in bits. (unsigned binary coded)
The complete message consists of the following:
Bit position :
1 23456789 0123456789012345 6
Bit contents :
P FFFFFFFF NNNNNNNNNNNNNNNN P
Parity (even) :
P FFFFFFFF NN
(odd) :
Legend : F : Facility code (8 bits: range: 0..255)
N : Label number (16 bits: range: 1..65535)
P : Even parity over the first 12 bits
Odd parity over the next 12 bits
© Nedap N.V.
Tpw
Tpi Tpi
: 60usec
60 usec
8 bits: range: 0..255
16 bits: range: 1..65535
2 bits
NNNNNNNNNNNNNN P
Nedap Readers Installation Guide
+5V
GND
+5V
GND
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