Mitsubishi Electric RS232/485/LAN Serial Communication Control Manual page 5

4. Communication Format
4-1.Basic command
This command set supports only the basic control of monitor and does NOT support multi monitor control
by daisy chained connection. This command set will be written in the user's manual of MDT652S.
1) Control command diagram
The command is structured by the address code, function code, data code and end code. The length of the command is different for
each function.
2) Control sequence
(1) The command from a computer to the LCD monitor will be sent in 600ms.
(2) The LCD monitor will send a return command 600ms* after it has received and encoded. If the command isn't
received correctly, the LCD monitor will not send the return command.
(3) The personal computer checks the command and confirms if the command, which has been sent, has been executed or not.
(4) This LCD monitor sends various codes other than return code. When having a control sequence by RS-232C, reject other
codes from personal computers side.
*: The sending time of return command may delay depending on the condition (during changing of the input signal, etc.).
Example: Turn the power ON ( ' ' is for ASCII code)
Note: The replied status is for communication confirmation. When you want to know the display condition, please use the 'Read
command'. (See page 6)
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