Proximity cards are often encoded with Weigand formats. When importing to various access control software you need to understand how to format the data. This example is for the Alarm Lock’s 36 bit cards into their DL-Windows software.
Format: NAP36bit Facility Code: 19 Sequence: 831450 Weigand Binary: OCCCCCCCCCCCCCCCCC CCCCCCCCCFFFFFFFFE 123456789012345678 901234567890123456 100000011001010111 111011010000100110 Hexdecimal: 0008195FB426 O (Odd Parity) =BITXOR(MOD(LEN(SUBSTITUTE(S5,"0","")),2),1) CCCCCCCCCCCCCCCCC CCCCCCCCCFFFFFFFF (Card and FC) ="0"&DEC2BIN(BITRSHIFT(M5,17),8)&DEC2BIN(BITAND(255,BITRSHIFT(M5,9)),8)&DEC2BIN(BITAND(511,M5),9)&DEC2BIN(L5,8) E (Even Parity) =MOD(LEN(S5)-LEN(SUBSTITUTE(S5,"0","")),2) Concatenate =R5&S5&T5 HEX =BIN2HEX(LEFT(U5,8),2)&BIN2HEX(MID(U5,9,8),2)&BIN2HEX(MID(U5,17,8),2)&BIN2HEX(MID(U5,25,8),2)&BIN2HEX(MID(U5,33,4),1)
