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Appendix A - Telnet and HTTP Protcols
Checksum
(rev changed from 1.1.3; 1.1.3 supported old protocol)
If system is in Emergency Override mode, it replies to
circuit, zone or event on/off command with emergency
override response
0xB0, 0xCB, 0xF0
Checksum is optional. It is calculated as a sum of all bytes
of the message starting with start byte and ending with
TCP/IP PROTOCOL
Zone Control = Z
Circuit Control = B
TCP/IP communications and control via a third party
control system is facilitated by the use of the HTTP GET
command. In the example below, GET= the XPC’s IP
address
Example of GET command:
GET /p2.XPC?IPB002=1
Three modes of control are:
Circuit control = “B” Zone control = “Z” Event Control =
“E”
Refer to LynTec XPC browser set-up for circuit
numbering
GET /p2.XPC?IPB002=1
This control string will turn circuit #2 on.
GET /p2.XPC?IPB002=0
This control string will turn circuit #2 off.
Control of up to 167 circuits (4 panel system) is
possible.
Con
fi
gure your zones (circuit groups) using the LynTec
XPC browser set-up when connected to the LynTec XPC
panel.
GET /p2.XPC?IPZ002=1
This control string will turn zone #2 on.
GET /p2.XPC?IPZ002=0
This control string will turn zone #2 off.
