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        Hello, are there any detailed analysis and examples of communication commands for the access control? The agreement documents are not clear.
        2017-03-10 11:11
        Details of the problem:

        Hello, are there any detailed analysis and examples of communication instructions for the access control? The agreement documents are not clear.


        Expert answer:

        Example of sending from PC to control board (reading controller SN):

        7E30303030303030303030303030303030FFFFFFFF19883D90010200000000006D7E

        Split explanation:

        7E--Command header

        30303030303030303030303030303030--SN's ascii code (not important when reading sn, other commands must be entered correctly)

        FFFFFFFF - The default communication password is FFFFFFFF

        19883D90 - information code (actually a random number or a serial number)

        010200 - The control code corresponding to the instruction (see the command table below)

        00000000--The length of the data, there is no data packet part, here is all 0.

        6D - Checksum

        30303030303030303030303030303030FFFFFFFF19883D9001020000000000 and check the low byte

        7E - end of command

        Example of control board sending to PC (read controller SN response):

        7E1906677946432D38393230413235303530323835FFFFFFFF3102000000001046432D38393230413235303530323835087E

        Split analysis:

        7E--Command header

        19066779 - The network logo sent by the software, and the software will return whatever it sends.

        46432D38393230413235303530323835- the sn ASCII code of the controller itself

        FFFFFFFF - communication password

        310200 - Command response code (check command table)

        00000010 - The length of the data packet part

        46432D38393230413235303530323835 --- Part of the content of the data packet (here is the read sn command, so the data packet part is the ascii code of sn)

        08 - Sum check

        7E - end of command


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