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        There are no communication instructions and examples in the access control system. The protocol documents are not very clear.
        2018-01-02 10:59
        Details of the problem:

        Hello, there are no communication instructions and examples in the access control system. The protocol documents are not very clear.

        Expert answer:

        An example about a PC sent to a control panel (read controller SN) :

        7E30303030303030303030303030303030FFFFFFFF19883D90010200000000006D7E

        Split interpretation:

        7E--commad header

        30303030303030303030303030303030 --The ascii code of SN (not important when reading SN, other instructions need to be entered correctly)

        FFFFFFFF -- The communication default password is FFFFFFFF

        19883D90 -- information code ( a random number or a sequence number)

        010200 -- the control code for the corresponding instruction (with the command table below)

        00000000-- The length of data, no data package is all 0.

        6D -- Check sum

        30303030303030303030303030303030FFFFFFFF19883D9001020000000000 Sum check    take the low byte

        7E -- Command tail

        Sample of control board sent to PC (read controller SN response) :


        7E1906677946432D38393230413235303530323835FFFFFFFF3102000000001046432D38393230413235303530323835087E

        Split interpretation:

        7E--commad header

        19066779 - The software sends out a network signal, and the software responds to anything.

        46432D38393230413235303530323835- The sn and ascii code of the controller itself

        FFFFFFFF -- Communication password

        310200 -- Command response code (check list)

        00000010 --Several parts length of the data packet 

        46432D38393230413235303530323835---Parts of content of the data packet (this is the sn directive, so the most of packets are the ASCII code of sn)

        08 -- Sum check

        7E -- Command tail

        Stephanie Stephanie Stephanie Ellie Ellie Ellie Victoria Victoria Victoria Olivia Olivia Olivia Isabella Isabella Isabella Jayden Jayden Jayden Lucas Lucas Lucas Dylan Dylan Dylan Ryan Ryan Ryan Noah Noah Noah

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