Abus TVIP40000 Manuel Utilisateur page 98

Dome control commands for TV7600, TV6702, TV7604 (Pelco)
Command structure
Word 1 Word 2
Synch byte Address
(always (ID of the
FF) analogue
camera)
Checksum calculation:
Word 7= word 2 + word 3 + word 4 + word 5 + word 6
Word explanation:
"Word1" is always "FF"
"Word2" is the ID of the analogue camera
"Word3"–"Word4" define the different PTZ functions ("save preset", "start patrol" etc.)
"Word5"–"Word6" define e.g. the numbering of the preset locations and patrols.
If you wish to go to a preset location, you also have to define which preset location number is to be selected.
"Word7" is the sum of words 2-6, and is also referred to as the checksum
Example: "Go to preset location 1" has the command: FF 01 00 07 00 01 09
Word 1 is always FF
Word 2 is always the ID of the speed dome
Word 3 and word 4 define the function: "Go to preset location"
Words 5 and 6 define the preset location to which the video server should go.
Word 7 is the checksum
Explanation: In word 6, the hex number 01 stands for preset 1.
If you would then like to go to preset location 15, you would enter 0F for word 6.
Example: "Go to preset location 15" has the command: FF 01 00 07 00 0F 17
This procedure is the same when selecting patrols or other calculable function structures.
Do not forget to recalculate the checksum every time the command is changed.
In the above example, changing the command from preset 1 to preset 15 resulted in the
checksum increasing by 14.
Word 3 Word 4
Command Command
1 2
Word 5 Word 6
Data 1 Data 2
98
English
Word 7
Checksum
word 2-6