Remote Parameter Request 52H 50H 49H 4FH ‘RPIO’

•Video signal type (17th through 22nd byte)

This command is used to set the type of video signal of the equipment connected to LINE4 A to F.

SIGNAL DEFINE

VIDEO	30[H] (‘0’)
S VIDEO	31[H] (‘1’)

RGB	32[H] (‘2’)

COMPONENT	33[H] (‘3’)

LAN	34[H] (‘4’)

•Projector protocol (23rd byte)

This command is used to select protocol of the projector to be connected.

Bit 0 of the “PJ CONTROL” changes depending on the protocol.

PROTOCOL			PJ CONTROL	Supported firmware
PROTOCOL			bit0	version
			bit0	version

VPL-FX50	30[H] (‘0’)		0	1.00 and higher
VPL-PX32/31/21	31[H] (‘1’)		0	1.00 and higher
PFM-42B1	32[H] (‘2’)		0	1.00 and higher
VPL-PX15	33[H] (‘3’)		1	1.00 and higher
VPL-PX10/PS10	34[H] (‘4’)		1	1.00 and higher
VPL-CX11/CX10	35[H] (‘5’)		1	1.00 and higher
SANYO LP-XP45/40	36[H] (‘6’)		0	1.00 and higher
VPL-PX11	37[H] (‘7’)		0	1.20 and higher
VPL-PX40/35	38[H] (‘8’)		0	1.20 and higher
PFM-50C1	39[H] (‘9’)		0	1.20 and higher
User define	7A[H] (‘z’)		0	1.10 and higher
Example: When setting the respective parameters as shown below.
LINE3 machine type		: CD
LINE3 connected channel		: 1
LINE4A-F machine type		: NONE
LINE4A-F machine type		: 2
CONTROL S I/F TYPE		: CH1 is set to IR, and CH2-4 are set to WIRED.
PJ CONTROL		: REMOTE POWER ENABLE is set to ON.
LINE4 A-C signal define		: VIDEO
LINE4 D-F signal define		: RGB
Projector protocol		: VPL-FX50

43[H] 4D[H] 54[H] 53[H] 37[H] 40[H] 30[H] 41[H] 30[H] 41[H] 30[H] 41[H] 30[H] 41[H] 30[H] 41[H] 30[H] 41[H] 41[H] 42[H] 30[H] 30[H] 30[H] 32[H] 32[H] 32[H] 30[H] 30[H] 0D[H]

(‘C S I O 7 @ 0 A 0 A 0 A 0 A 0 A 0 A A B 0 0 0 2 2 2 0 0 CR’)

REMOTE PARAMETER REQUEST : 52[H] 50[H] 49[H] 4F[H] (‘RPIO’)

This command is used to read setups of the CONTROL S OUTPUT and PROJECTOR CONTROL from the SRP-X700P.

•Packet format

52[H] 50[H] 49[H] 4F[H] 0D[H]

•Return packet format

When communication with the SRP-X700P is established with success, the parameter is returned together with ACK (41[H] (‘A’)) in the order shown below.

41[H] “parameter” 0D[H]

The parameter is the same as the 24 byte parameter of the REMOTE command.

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RS-232C specifications

The Sony RS-232C is a renowned communication standard that has been widely utilized in various electronic devices, enabling serial communication between computers and peripheral devices. This protocol is integral in various applications, including industrial automation, medical equipment, and consumer electronics.

One of the main features of the Sony RS-232C is its simplicity and ease of use. The standard utilizes a basic serial communication method, allowing for asynchronous data transmission. This means that data can be sent one bit at a time over a single channel, ensuring reliable communication over short distances, typically up to 50 feet, although longer distances can be achieved with proper cable management and signal boosters.

The technology behind the RS-232C standard employs voltage levels to represent binary data. Logic level zero is represented by a voltage between -3 to -25 volts, while logic level one is between +3 to +25 volts. This voltage differential is crucial for distinguishing between 'on' and 'off' states in electronic signaling. The standard supports data rates of up to 115.2 kbps, making it suitable for various applications, although it is generally limited in speed when compared to modern communication standards like USB or Ethernet.

In terms of characteristics, the Sony RS-232C supports both full-duplex and half-duplex communication, allowing for simultaneous transmission and reception of data, or one-directional data transfer, respectively. The protocol also includes control signals for flow control, such as RTS (Request to Send) and CTS (Clear to Send), which help manage data transmission and prevent data loss due to buffer overflow.

The RS-232C standard has 25-pin and 9-pin connector configurations, although many devices now utilize the more compact 9-pin DIN format. This legacy standard remains prevalent in industrial settings, as many devices still use RS-232 connections.

Despite the emergence of more advanced communication protocols, the reliability and robustness of the Sony RS-232C ensure that it remains an enduring choice for numerous applications. Its straightforward configuration, coupled with extensive documentation and support, makes it a favorable option for both new installations and the maintenance of legacy systems in various industries. As technology continues to evolve, the RS-232C standard remains a testament to the enduring principles of reliable communication.

Sony RS-232C manual Remote Parameter Request 52H 50H 49H 4FH ‘RPIO’, Projector protocol 23rd byte

Models: RS-232C