Hello, after using the silent card reading function in the test card reader, the anti-passback function does not consider it to be a valid card reading, can you make some adjustments? After reading the card using the silent card reading function, the controller judges is an effective card reading operation, but without controlling the relay, that is, using silent card reading can achieve the anti-passback function, but the relay does not open the door (in order to indirectly realize the multi-controller anti-passback function).

Hello, the FC-8900 control board has a regional anti-passback function, no need to make this modification.