I-Tech ECHW3200HD-SW, Руководство пользователя

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five minutes' time.
Notes:
1) Before you can control any Pelco-D cameras, you need to prepare the following items:
- A PC running 232Analyzer program
- A RS-232 port (or USB/RS-232 converter)
- A
RS-232/RS-485 converter
2) Make sure your COM port settings in the 232Analyzer program matches with camera's
settings (Pelco-D cameras use No parity, 8 Data bits and 1 Stop bit, baud rate depends on your
camera setting)
(Click here to download the 232Analyzer FREE Version. Click here to download Pelco-D/P
device profiles)
1) The format of Pelco-D
Pelco-D consists of 7 hexadecimal bytes (all byte data used in this page are in Hexadecimal
format unless otherwise noted)
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
Sync
Camera
Address
Command 1 Command 2 Data 1 Data 2 Checksum
x
Byte 1 (Sync) - the synchronization byte, fixed to FF
x
Byte 2 (Camera Address) - logical address of the camera being controlled (Address 1 is
01)
x
Byte 3 & 4 (Command 1 and 2) are shown below
x
Byte 5 (Data 1) - pan speed, range from 00 (stop) to 3F (high speed) and FF for "turbo"
speed (the maximum pan speed that the device can go)
x
Byte 6 (Data 2) - tilt speed, range from 00 (stop) to 3F (maximum speed)
x
Byte 7 (Checksum) - sum of bytes (excluding the synchronization byte), then modulo 100
(Decimal code: 256)
Command 1 and 2 details
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Command 1 Sense Reserved Reserved
Auto /
Manual
Scan
Camera
On/Off
Iris
Close
Iris
Open
Focus Near
Command 2
Focus
Far
Zoom
Wide
Zoom
Tele
Tilt Down Tilt Up
Pan
Left
Pan
Right
Fixed to 0
Example (Command 2):
Pan Left - 0 0 0 0 0 1 0 0, which equals to 04 (both hexadecimal and decimal)
Some other commands