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4. Communication Format

The command packet consists of four parts, Header, Message, Check code and Delimiter.

Sequence of a typical procedure to control a monitor is as follows,

[A controller and a monitor, two-way communication composition figure]

4.1 Header block format (fixed length)

byte) SOH: Start of Header

ASCII SOH (01h)

Header Message Check Code Delimiter

Header

Message

Check code

Delimiter

SOH

Reserved

'0'

Destination Source

Message

Type

Message

Length

-7

Monitor Controller

Header

Message

Check Code

Delimiter

Header

Message

Check Code

Delimiter

Get Parameter

Get Parameter Reply

Header

Message

Check Code

Delimiter

Set Parameter

Header

Message

Check Code

Delimiter

Set Parameter Reply

Header

Message

Check Code

Delimiter

Header

Message

Check Code

Delimiter

Get Parameter Reply

Save Current Setting Command

Get Parameter

Header

Message

Check Code

Delimiter

The controller sends command to

get a value from the monitor that

you want to change.

The monitor replies a current value

of the requested item.

The controller sends commands to

set an adjusted value.

The monitor replies to the

controller for confirmation.

The controller sends command to

get a value for confirmation.

The monitor replies an adjusted

value.

The controller requests to store

the adjusted value to the monitor.

Header

Message

Check Code

Delimiter

Header

Message

Check Code

Delimiter

Command

Command Reply

The control does not suitable for

above fixed protocol; use the

proper command for each control.

Please refer section 5.5 and

section 7 to 13.

The monitor replies a proper

message defined for each control.

Header

Message

Check Code

Delimiter

Save Current Setting Command Reply

The monitor replies to the

controller for confirmation.

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