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Communications Protocol
[2] Communications Flow
Note: ◦ S tart the transmission of the next data after
confirming the response command.
◦ T he 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
In factory default, Auto pixel defect
compensation is set to OFF at start-up.
1 During Settings Command
Transmission
Source
Repeats the byte
count and the message
and response commu-
nications in response
to the contents of the
message.
Response Command
2 During Query Command (Other than ACK)
Transmission
Source
Repeats the byte
count and the message
and response commu-
nications in response
to the contents of the
message.
Response Command
(NACK/ERR)
Transmission
Destination (Unit)
Header
Message 1
Message 2
Settings Command
Transmissions
Checksum
Terminator
Transmission
Destination (Unit)
Header
Message 1
Message 2
Query Command
Transmissions
Checksum
Terminator
3 During Query Command (ACK)
Transmission
Source
Header
Message 1
Message 2
Checksum
Terminator
Response Command
(ACK)
− 7 −
Transmission
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
Query Command
Response
Repeats the byte
count and the message
and response commu-
nications in response
to the contents of the
message.
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