Remote Control Protocol & Command - Hitachi KP-D5010-S1 Operation Manual

Outdoor housing camera
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7. Remote control protocol & command
1) Communications specifications
Sync system
Bit rate
Data length
Start bits
Stop bits
Parity
2) Communication protocol
The communication protocol between the actuator and the housing camera is shown. (Figure 1)
The transmission command of one packet (11 bytes) is transmitted from the actuator to the housing
camera. The received command is recognized, and when it is executable, the command is
executed, and the housing camera transmits the reply command to the actuator.
Notes
The housing camera disregards the transmission command received from the reception of the
command to the transmission of the reply command.
The command is transmitted.
The reply data is received.
The reply data is received.
Start-stop sync
9600 bps
8 bits
1
1
None
Actuate
Command transmission
The reply data is not transmitted.
The error is set to error code, and
the reply data is transmitted.
'0' is set to error code, and the
reply data is transmitted.
Figure 1. Communication protocol
Housing camera
NO
NO
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Revision A
June 27, 2011
The command is received.
Is the destination address
the same as camera ID and is the
checksum same?
YES
Are the command and data
the ranges of specification and
possible the command execution?
YES
The command is executed.

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