DM&P Mity-Mite LT200

2002/07/16

TCP Control Protocol

Command	Response	Description
[Socket connected]	OK, Password?	LT200 require password to check user.
QUIT	N/A	Quit control protocol.
set_outputX=Y	OK	X=1~8,Y=0/1. Set output X to Y.
get_input_all	XX	XX is a hex code to indicate input status.
get_inputX	0 or 1	Read input X status.
get_icntX	X	X is a number to indicate how many input status changed.
set_icntX=Y	OK	Set input status counter.

About input counter: when input status changed from 0 to 1 or 1 to 0, the counter will be increase one. For example: assume the password of LT200 is "password", we use TcpCtrl.EXE to connect to LT200. It's the work flow:

TcpCtrl.EXE	LT200
"Connect" button is pressed, connect to LT200.
	OK, Password?
password
	OK
get_input1
	1
get_icnt1
	12
TcpCtrl.exe will send a lot of GET command to get status...(omit)
"ON" button of output 1 is pressed, send set_output1=1
	OK
"OFF" button of output 3 is pressed, send set_output3=0
	OK
"Clear" button of input 2 is pressed, send set_icnt2=0
	OK
"Disconnect" button is pressed, send Quit

This table will help you to read our source code about TCP control protocol. See CTRL.C of DSOCK_AP project and TcpCtrlDlg.cpp of TcpCtrl project.

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