User`s manual

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4.2 Message block format
“Message block format” is allied to the “Message Type” in the “Header”.
Refer to the section 6 “Message format” for more detail.
1
） Get current parameter
The controller sends this message when you want to get the status of the monitor.
For the status that you want to get, specify the “OP code page” and “OP code”,
refer to “Appendix A. Operation code table”.
“Message format” of the “Get current parameter” is as follows;
 Refer to section 5.1 “Get current parameter from a monitor.” for more details.
2
） Get Parameter reply
The monitor will reply with the status of the requested item specified by the controller
in the “Get parameter message”.
“Message format” of the “Get parameter reply” is as follows;
 Refer to section 5.2 “Get parameter reply” for more details.
3
） Set parameter
The controller sends this message to change a setting of the monitor.
Message format of the “Set parameter” is as follows;
 Refer to section 5.3 “Set parameter” for more details.
4
） Set Parameter reply
The monitor replies with this message for a confirmation of the “Set parameter message”.
Message format of the “Set parameter reply” is as follows;
Result OP code page OP code Type Max value
Requested setting
Value
ETX
STX
Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
 Refer to section 5.4 “Set parameter reply” for more details.
5
） Command
“Command message” format depends on each command.
Usually, this “command message” is used for some non-slider controls and some special operations,
such as “Save current settings”, “Get timing report”, “power control”, “Schedule”, etc. Refer to
section 5.5 “Commands message” for more details.
Header
Message
Check code Delimiter
OP code page OP code
STX
Hi Lo Hi Lo
ETX
Result OP code page OP code Type Max value Current Value
STX
Hi Lo Hi Lo Hi Lo Hi Lo MSB LSB MSB LSB
ETX
OP code page OP code Set Value
STX
Hi Lo Hi Lo MSB LSB
ETX