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CredentialsReviewed 2026-08-28

Facility bits

How bits are split between facility code and card number in a Wiegand format.

26-bit credential numberFACILITY · 8 bitsCARD NUMBER · 16 bitsPPMatch system format

The split must match what the panel is programmed for.

Do not change bit layout on new cards unless the panel is updated too.

Also called
security code bitsfacility code bitsfacility code countSecurity and facility code bitssecurity and facility code bits
Catalog fields
Security Code BitsFacility Code BitsFacility Code Count

Source: Transmitter Solutions product training