Hitachi EDA100, CP-A100W user manual Command Format TCP #23, Protocol

Command Control via the Network (continued)

Command Format

[TCP #23]

1. Protocol

Consist of header (7 bytes) + command data (6 bytes)

2. Header

BE + EF + 03 + 06 + 00 + CRC_low + CRC_high &5&BORZ/RZHUE\WHRI&5&ÀDJIRUFRPPDQGGDWD &5&BKLJK8SSHUE\WHRI&5&ÀDJIRUFRPPDQGGDWD

3.Command data

Command data chart

byte_0	byte_1	byte_2		byte_3		byte_4	byte_5
Action			Type			Setting code
low	high	low		high		low	high
Action (byte_0 - 1)
Action	&ODVVL¿FDWLRQ				Content
1	Set		Change setting to desired value.
2	Get		Read projector internal setup value.
4	Increment		Increment setup value by 1.
5	Decrement		Decrement setup value by 1.
6	Execute		Run a command.

Requesting projector status (Get command)

(1)Send the following request code from the PC to the projector.

Header + Command data (‘02H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)

(2)The projector returns the response code ‘1DH’ + data (2 bytes) to the PC.

Changing the projector settings (Set command)

(1)Send the following setting code from the PC to the projector.

Header + Command data (‘01H’ + ‘00H’ + type (2 bytes) + setting code (2 bytes))

(2)The projector changes the setting based on the above setting code.

(3)The projector returns the response code ‘06H’ to the PC.

Using the projector default settings (Reset Command)

(1) The PC sends the following default setting code to the projector. Header + Command data (‘06H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)

7KHSURMHFWRUFKDQJHVWKHVSHFL¿HGVHWWLQJWRWKHGHIDXOWYDOXH

(3) The projector returns the response code ‘06H’ to the PC.

Increasing the projector setting value (Increment command)

(1)The PC sends the following increment code to the projector.

Header + Command data (‘04H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’)

(2)The projector increases the setting value on the above setting code.

(3)The projector returns the response code ‘06H’ to the PC.

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