CREATOR WiFi Conference System - Manual (Page 33)

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27 WiFi Conference System User‘s Manual
8.2 PELCO-D Camera Control Protocol Code Formats and Their
Descriptions
Communication protocol:9600.N.8.1
Control code:The codes below are Hex format codes.
PELCO-D command formats:
Byte 1 Byte2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
FFH Address
code
Instruction
code1
Instruction
code 2
Data code
1
Data code
2
Check
code
Description:
◆ Address code is the camera’s logical address, fixed as: 01H;
◆ Algorithm: check code = MOD [(byte2 +byte 3 + byte 4 + byte5 + byte6) /100H];
The camera preset setting command:
Byte 1 Byte2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
FFH 01H 00H 03H 00H Preset No. Check code
The camera preset recall command:
Byte 1 Byte2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
FFH 01H 00H 07H 00H Preset No. Check code
After the coding of the preset number and speech unit ID of the above table, each speech unit ID are
consistent. There are preset settings of 127 speech units, the 128th preset spot is for a panoramic
picture.
8.3 PELCO-P Camera Control Protocol Code Formats and Their
Descriptions
Communication protocol:9600.N.8.1
Control code:The codes below are Hex format codes.
PELCO-P command formats:
Byte 1 Byte2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8
A0H
Address
code
Instruction
code 1
Instruction
code 2
Data code
1
Data code
2
AFH
Check
code
Description:
◆ The address code is the camera’s logical address, fixed as: 01H;
◆ Algorithm: check code = byte 1 XOR byte 2 XOR byte3 XOR byte 4 XOR byte 5 XOR byte 6 XOR byte
7. (XOR of bytes 1 to 7);