RS-232C communication, Communications setting

TECHNICAL (continued)

RS-232C communication

(1)Turn off the projector and computer power supplies and connect with the RS-232C cable.

(2)Turn on the computer power supply and after the computer has started up, turn on the projector power supply.

	Projector
Control jack		2
D-sub 15-pin shrink jack	SELORTS109345678
1510149138127116	GND	2
	RDT	43
		15

Computer		RS-232C jack
2	RD	D-sub 9-pin
3456789	TDGNDDRITRSRTS	162738495

Communications setting

19200bps, 8N1

1 Protocol

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

2 Header

BE + EF + 03 + 06 + 00 + CRC_low + CRC_high

CRC_low : Lower byte of CRC flag for command data.

CRC_high : Upper byte of CRC flag for command data.

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
low	high	low		high	low	high

		Action (byte_0 - 1)
Action	Classification		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.

TECHNICAL

TECHNICAL - 5

CPS225W specifications

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Additionally, the CPS225W uses eco-friendly refrigerant, aligning with modern environmental standards and ensuring a lower carbon footprint. With its combination of powerful cooling, energy efficiency, and user-friendly features, the Hitachi CPS225W is an excellent choice for anyone seeking a reliable portable air conditioning solution. Whether for personal use or in a small workspace, this unit promises to deliver comfort and convenience with every use.

Hitachi CPS225W RS-232C communication, Communications setting, Protocol, Header, Command data

Models: CPS225W