Protocol Frame Structure, Transmission Packet Format

Ver 1.80E

1.Protocol Frame Structure

1.1 Transmission Packet Format

-Mode		:RS-485/RS-422 Asynchronous Communication
-Transmit Direction		:Simplex/Half duplex
-Start	bit	:1	bit
-Data	bit	:8	bits
-Parity	bit	:None
-Stop	bit	:1bit
-Baud rate		:9600 bps

1.2.Communication Timing Chart

Pic 1.Pan/Tilt Operation Timing Chart

Please note that the Preset commands send a response only at the end of their executions. The recommended minimum period of control signal communications is 70ms.

For the Pan/Tilt operation, setting up the communication period shorter than the recommendation may cause protocol loss or extend the response time of the camera.

Pic 2. Other Commands Timing Chart

Aside from Pan/Tilt, other protocols send a response at the end of their executions depending on the situation; the response time of the camera may take up to 7 seconds.

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