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Denon DN-V1700 User Manual

Page 24

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24

ENGLISH

Software specifications

✽ These operating instructions only include a general description of the serial remote commands.

For details of the individual commands, consult your store of purchase.

2 Basic procedure for transmitting and receiving commands

Basic protocol of this interface: The device with which serial communications are possible (referred to as “the controller” below)
issues commands and the DN-V1700 returns messages indicating that the commands have been executed.
When using a computer, serial communications are possible using Hyper Terminal included as standard with Window™ 95 and later.

2 Command format

ASCII character codes are used for actual commands and messages. Commands are expressed with two characters. There is no
distinction between capital and small letters, but the two must not be combined.
The code (0DH,0AH) is affixed to the end of commands. The DN-V1700 recognizes that the command is complete
through this code.
Some commands may include parameters (arguments), but as commands also serve to terminate parameters, be sure to place
parameters before the command and do not include spaces, etc. The maximum length of commands including arguments is 49
characters.

[Example]

20SE : Search for 20th clip

In this case, 20 is the parameter, SE is the command.

2 Command transmission and reply message

When the DN-V1700 receives a command and completes the instructed task or when an error occurs, the DN-V1700 returns a reply
message to the controller. There are three types of reply messages:
• Task completed message “R” indicating that the task has been completed normally
• “R” indicating a status message in reply to a status request command + terminator
• Error message “E✽✽” indicating that an error has occurred.
A 2-digit number following the “E” in the error message indicates the error type.

✽ The message “OK” is returned after the power is turned on or the system is rebooted.

Y

N

Command

processing

error?

Command transmission

Error generated during command processing

(error message E

✽✽

)

Controller

DN-V1700

Normal

completion

R (task completed message)

or request message + R