Pioneer RS-232C manual Additional Notes

Page 92

PIONEER DVD-V7200 Industrial DVD Player RS-232 Command Protocol Manual

10.ADDITIONAL NOTES

1.If the disc that is currently playing has a picture stop code recorded, when the player reaches the stop code point, it enters Still Mode.

2.If Prohibit Pause is set for Stop Marker playback, an error is issued at any Stop Marker Point.

3.Whenever a computer controls the player, send the KEY LOCK command to eliminate possible interference from the front panel buttons and/or the remote control unit.

4.If an address that does not exist is set in a command for a CD or VCD disc, error E04 is returned.

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Contents DVD-V7200 Page FCC Information Page Table of Contents Track CD, VCD Current Player Condition Request DescriptionsOperating Modes DVD-V7200 Internal Registers TimeIntroduction Interface Connector Serial Interface Pin SpecificationInterface Computer Control FunctionsExternal Switch Control see Chapter Communication with a Computer Serial Interface SpecificationsSerial Control Command and Status Command StructurePage Error Messages Initial SettingOFF CCRPage Command Structure DVD-V7200 supports the commands listed belowRegister B Set Squelch Command Mnemonic ArgumentPage Command String Error MessageStatus Returns Request Status ReturnTiming Command Descriptions OpenClose RejectStart PlayVCD PauseDVD Still DVD, VCD Step Forward DVD, VCD Step Reverse DVDScan Forward Scan Reverse Scan Stop Multi-Speed Forward DVD, VCD Multi-Speed Reverse DVD Speed DVD, VCD VCD DVDSearch Search & Play Stop Marker Lead-Out Symbol Clear Frame DVDChapter DVD Block Number CD, VCDTime except disc which time code is not recorded Track CD, VCD Title DVDIndex CD, VCD Select Aspect Select Subtitle DVDSelect Audio DVD Audio Control Select Angle DVDSelect Parental-Level DVD Video Control Display ControlKey Lock Barcode /Command Stack Play DVD Stack Group Set DVDVideo Blackboard Display DVD Video Blackboard ClearBlackboard / Stack Data Upload Page Command Descriptions Repeat SRP #n Barcode #n Search Pointer Gray Blackboard / Stack Data Download Weekly Timer Data Upload BCD Page Data Weekly Timer Data Download Text File Data Upload EOFPage Current Player Condition Request Descriptions Block Number RequestTitle/Track Number Request CD/VCDChapter Number Request DVD Time Code RequestIndex Number Request CD, VCD Frame Number Request DVDTOC Information Request CD/VCD Block Number Request CD, VCDTotal Frame Request DVD Disc Region Code Request DVD Disc Status RequestCAV/CVL = CAV LD Disc Status Request LB-compatible DVDCD Disc Status Request Register a Set DVDPage Register B Set Register D Set Print CharacterÂ Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Clear ScreenReal Time Clock Set Advanced Feature Menu Set Baud RateTray Lock OFF Blackboard Lock OFFCommunication Control Set Player Active Mode Request Player Model Name RequestAdvanced Feature Menu Request Real Time Clock RequestCCR Mode Request Error Code RequestPlayer Region Code Request Input Number RequestInput Unit Request Input Barcode Data RequestCD, VCD Register a RequestRegister B Request Register D Request Menu Call DVDNumeric Button DVD Enter Button DVD Get Information DVD Ttdom HlbtnnPage Setup Random AccessOperating Modes ParkReject DVD-V7200 Internal Registers Remote Control Data Register Laser Barcode BufferSerial Use Address Flag Search Time/FrameMark Index RegistersRegister Model DVD-V7200 Internal Registers External Switch Control Function AssignmentController Diode Assignment ListSimple Circuit Diode Matrix Circuit Additional Notes Appendix a Complete Command List by Name Command Supporting Formats Appendix B Complete Command List by Mnemonic Command Supporting Formats Appendix C DVD Command List CommandCommand Appendix D LB Compatible DVD Command List Command Appendix E CD Command List DVD-V7200 supports the following commandsCommand Appendix F VCD Command List Command Appendix G Error Codes Page Pioneer Electronic Corporation
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RS-232C specifications

The Pioneer RS-232C is a significant component in the realm of communication technology, especially known for its application in serial communications. Initially introduced in the 1960s as part of the EIA-232 standard, RS-232C has evolved through various iterations to become a foundational interface for connecting data communication equipment (DCE) with data terminal equipment (DTE). This article outlines its main features, technologies, and characteristics.

One of the hallmark features of RS-232C is its ability to facilitate point-to-point communication. It allows for a direct link between two devices, making it suitable for a variety of applications, including modems, printers, computers, and other peripherals. The RS-232C interface typically uses a 25-pin connector, although a 9-pin variant is also common in many modern devices. This interface is based on serial communications, where bits are sent sequentially over a single channel, leveraging fewer wires compared to parallel communication methods.

In terms of technology, RS-232C operates primarily at voltage levels of +12V to -12V, which provide the necessary signaling for data transmission. The standard supports baud rates ranging from 300 to 115200 bps, accommodating various data transfer speeds depending on the needs of the hardware involved. RS-232C defines various electrical characteristics and timing requirements, ensuring robust performance over relatively short distances, typically up to 15 meters, depending on the baud rate.

Another essential aspect of the RS-232C standard is its use of asynchronous communication, allowing devices to transmit data without having to synchronize their clocks. Each data packet typically consists of a start bit, a predefined number of data bits (usually 7 or 8), an optional parity bit for error-checking, and one or more stop bits. This method allows for error detection and ensures data integrity during transmission.

Despite its age, the RS-232C interface remains relevant, especially in industrial applications, instrumentation, and legacy systems. Its simplicity, low cost, and widespread acceptance make it a versatile choice for connecting various devices, even in a world increasingly dominated by USB and other modern interfaces.

In conclusion, the Pioneer RS-232C is a remarkable testament to the enduring nature of serial communication technology. Its straightforward design, reliability, and ease of integration continue to make it a staple in numerous applications, underscoring its significance in the landscape of data communication.
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