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