Sanyo VCC-MD700, VCC-MD500 Communications Flow, During Query Command ACK, During Settings Command

Communications Protocol

[2] Communications Flow

Note: ◦Start the transmission of the next data after confirming the response command.

◦The maximum transmission interval of the various byte data is 500 [msec]. If this is exceeded, a communication error is detected in the camera unit, the receiving data is deleted, and data from the header is waiting to be received again. Furthermore, there are no special regulations regarding the minimum value.

◦All the commands can be acquired after the periods below after start-up.

MD600(P), MD500(P): 6 seconds

MD800(P), MD700(P): 9 seconds

When auto pixel defect compensation is set to ON, below period will be added to above at the longest.

MD600(P), MD500(P): 15seconds

MD800(P), MD700(P): 20seconds

3 During Query Command (ACK)

Transmission	Transmission
Source	Destination (Unit)
	Header
	Message 1
	Message 2
	Repeats the byte
		Query Command
	count and the message
	and response commu-	Transmissions
	nications in response
	to the contents of the
	message.
	Checksum
	Terminator
Header
Message 1
Message 2		Query Command
		Response

In factory default, Auto pixel defect compensation is set to OFF at start-up.

1 During Settings Command

Checksum

Repeats the byte count and the message and response commu- nications in response to the contents of the message.

Transmission	Transmission
Source	Destination (Unit)
	Header
	Message 1
	Message 2
	Repeats the byte
	count and the message	Settings Command
	and response commu-	Transmissions
	nications in response
	to the contents of the
	message.
	Checksum
	Terminator
Response Command

2 During Query Command (Other than ACK)

Transmission	Transmission
Source	Destination (Unit)
	Header
	Message 1
	Message 2
	Repeats the byte
		Query Command
	count and the message
		Transmissions
	and response commu-
	nications in response
	to the contents of the
	message.
	Checksum
	Terminator
Response Command
(NACK/ERR)

Terminator

Response Command (ACK)

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