Meridian Audio DILA1080pHD warranty Terminal Description continued, RS-232C External Control

Terminal Description (continued)

RS-232C External Control

Control of this unit via a computer is possible by connecting the computer to this unit with a RS-232C cross cable (D-sub 9 pins). The commands to control this unit and the response data format against the received commands are explained here. For details, please consult your authorized dealer.

1. Communication Specifications

Communication specification for this unit are as follows:

Baud Rate	9600/19200 bps
Data Length	8 bit
Parity	None
Stop Bit	1 bit
Flow Control	None

2. Command Format

2-1. Command data format

When sending a control command to this unit, use the following data format:

Header ID SP Command

[

SP Parameter

[

CR

Header		: Designates the head of data and the data type.
			! (21h): Assigns command to the projector
			? (3Fh): Query to the projector (Asking command)
ID		:1: Identification number of the projector (Factory		setting is 1)
	SP	: Designates the delimiter for ID, Command and Parameter.			(20h)
CR		: Designates the terminal of the data. (0Dh)
	*[	] is not necessary for Asking command.

2-2. Response data format

Upon executing a control command it has received, this unit sends back the following response data to the com- puter:

Header ID SP Normal Termination Status

[

SP Parameter

[

CR

Header		: Designates the head of the data.
			@ (40h): Fetches data from the	projector
ID
		:	1: Identification number of the projector		(Factory setting is 1)
	SP	: Designates the delimiter for ID, Command and Parameter.				(20h)
Normal Termination Status : 0 (30h)
CR		: Designates the terminal of the data. (0Dh)

2-3. Parameters used for the data format

The following 3 types of parameters are used for command and response data: 1 Numeric value 2 ON/OFF 3 Special parameters

Each parameter is as follows:

1Numeric value

A 2-byte hexadecimal value (sign included) is represented by a set of 4-digit (4-byte) characters. Assignable range: 8000H to 7FFFH

2ON/OFF

Shows the status (ON or OFF) of the unit, such as POWER and HIDE.

Character	Hex	Meaning
0	30	OFF
1	31	ON

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