3
Protocol for Home Automation Control
The following tables describe the message packet formats for Arm/Disarm, Zone Status, Output Control, and
System Event Notification messages between the control panel and the Home Automation software.
Message Packet Format Components
The table below describes the different components of a Message Packet format. A typical message packet
format contains the following components: NNMSD…00 CC (CR-LF)
NOTES: Messages contain printable ASCII characters with the exception of the Terminator.
All hex values are entered in upper case only.
Message Packet Components
Component Symbol Character
Length
Definition
Packet Length NN
2
Indicates the total length of packet including all characters
minus terminator. Legal values are hex 00-FF. Permissible
characters are ASCII 0-9 and upper case A-F.
Message/Packet
Type
M
1
Upper and lower case alpha characters a-z and A-Z. Lower
case is for commands to the panel and upper case are
responses from panel.
Sub-Message/
Packet Type
S
1
Upper and lower case alpha characters a-z and A-Z. Lower
case is for commands to the panel and upper case are
responses from panel.
Data D…
0 or more
ASCII characters of data associated with the command/
packet type. Any printable ASCII character is permitted.
Reserved 00
2
Two ASCII characters reserved for future development. Only
current legal character is numeric “0”.
Checksum CC
2
The hexadecimal 2’s compliment of the modulo-256 sum of
the ASCII values of all characters in the message excluding
checksum itself and terminator. Permissible characters are
0-9 and upper case A-F.
Terminator (CR-LF)
Message Terminator. ASCII characters consisting of
hexadecimal 0x0D and 0x0A.
ARM and DISARM Messages
The table below describes the typical commands used to ARM and DISARM a control panel partition, query
the panel’s arming status and receive back the panel’s status report.
ARM/DISARM, Status Query, and Panel Status Report Messages
Action String Example
Arm Away
0EaaDDDDDD00CC (CR-LF)
User 2, User Code 2345, sending Arm Away:
0E0223450039 (CR-LF)
Arm Home
(Stay)
0EahDDDDDD00CC (CR-LF)
User 3, User Code 7898, Sending Arm Home (Stay):
0Eah037898001F (CR-LF)
Disarm
0EadDDDDDD00CC (CR-LF)
User 1, User Code 1000, sending Disarm:
0Ead01100000044 (CR-LF)
Arming Status
Request
08as0064 (CR-LF)
Arming Status Request:
08as0064 (CR-LF)
Arming Status
Report
10ASDDDDDDDD00CC (CR-
LF)
With 6 partitions assigned, partitions 1-4 Armed
Home, partitions 5 not assigned, and partitions 7-8
Armed Away: 10ASHHHHDDAA0081 (CR-LF)
(260 paginas)
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