Extron electronic 4LQXI Advanced Instruction Set, Advanced Instruction List, Error Codes ERC

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Appendix A • RS-232 Programmer’s Guide

Advanced Instruction Set

The Advanced Instruction Set uses commands that are longer than one character because they are more complex than the Simple Instructions described earlier. Advanced Instructions can be used in programs that may be stored and executed as needed.

The system sees the RS-232 information in two general categories:

If bit 7 = 0 (00h - 7Fh), this byte is an instruction.

If bit 7=1 (80h - FFh), it is considered to be data, or information.

However, only certain codes are used by the System 4xi.

The components of an Advanced Instruction are:

Escape Code (ESC) - to indicate the start of command Command Code - to tell the switcher what to do

Subcom - Data (if required) – as many bytes as required for parameters to supplement the Command Code

End Of Transmission (EOT) - to indicate the end of this command

Switcher response to the command:

Escape Code (ESC) - to indicate the start of a response

Command Code - repeated to identify what the response is for

Error Code (ERC) - to indicate no error, or what type of error

Data (if required) - to give the host what was requested

End Of Transmission (EOT) - to indicate the end of the response

The command protocol is as follows:

ESC, Command1, Subcommand1.1, Subcommand1.2, etc... EOT

Advanced Instruction List

The commands listed here are Advanced Instructions, however, they can be intermixed with commands from the Simple Instruction Set.

Command

Hex

Description

 

 

 

 

 

CMD4

34h

Select input channels (audio and video)

 

CMD5

35h

Request system status

 

CMD6

36h

Adjust settings (incremental)

 

CMD8

38h

Set up System 4xi for slave configuration

 

CMD9

39h

Configure an input channel

 

CMD10

3Ah

Request input channel configuration

 

CMD11

3Bh

Configure system

 

CMD12

3Ch

Request system configuration

 

(These are command characters, because they are in the range of 00h - 7Fh.)

Error Codes (ERC)

An ERC character is included with each response from the System 4xi. Here are the codes for the ERC character used by the System 4xi:

80h = No error

81h = Invalid channel

82h = Command not recognized (illegal command)

84h = Projector communication error

85h = Switcher is Off, cannot execute the command 8Ah = Invalid command

8Dh = Invalid parameter value

(These are data characters, because they are in the range of 80h - FFh.)

Extron • System 4xi Switcher Series • User’s Manual

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Contents System 4xiEQSeries100 Precautions Getting Started Extron System 4xi Switcher Series User’s Manual Contents Chapter Four Connecting Multiple Switchers Iii Extron System 4xi Switcher Series User’s Manual One Rgbs NTSC/PAL Introduction to SystemSystem 4xi Features Universal Projector Control Multiple Switcher ApplicationsInternal Power Supply with Automatic Switching Picture Control MemorySpecifications General Audio outputControl projector Configuration and Installation System 4xi Rear Panel Identification Rear Panel Connectors and IndicatorsNEC Projector/Monitor ApplicationsUser-Supplied Cables Removing the System 4xi CoverCommunications Adapters and Cables Removing the System 4xi Cover Setting the Main Controller Board for the ProjectorCabling a System 4xi in a Rack Audio Terminal Connections Audio Wiring ApplicationsAudio Cable Equivalent Connections Three Using System 4xi Model Differences Default LCD ScreenTerms used in LCD Menus Menu Controls and NavigationScreen Example of Using the Menu ControlsChoices made for this VGA mode is only Menu Select/Exit Menu Video Mode ConfigurationHost Baudrate Menu Audio Level Configuration MenuRGB Delay Menu Sync Configuration Menu Slave Configuration MenuLD Sync Configuration Menu Information Menu Slave Switcher Input SelectionPicture Controls line doubler/line quadrupler converter Tint Control Horizontal Shift ControlContrast Control Color ControlSystem 4xiSeries LCD Menus Special Functions System ResetToggle Executive Mode 4Chapter Four SW8+ SW10+ Multiple SW8+/SW10+ Looping the System 4xi with Other SwitchersInput Channel Addressing Channel Sys4J1 Pins System 4 J2 Pins Host J3 Pins Slave Switcher Controlling Master/Slave SwitchersSystem 4xi with SW4/6 Armx Switchers Audio System 4xi with One System 8/10 Plus SwitcherSystem 10 Plus System 4xi with Multiple System 8/10 Plus Switchers System 8/10 Plus Front Access Panel Switches System 8/10 Plus Switch SettingsTesting the Master/Slave Communications Programming the System 4xi Looping Configuration5Chapter Five Connect the PC to the System Extron System Switcher Control SoftwareSystem 4xi Help Example of the first Help menu, Help ContentsWindows Control Panel Examples Window Pull-Down Menus Executive ModeHelp Menu Selections include AAppendix a Program Instruction Levels Programming the System 4xi Series SwitchersRS-232 Connections RS-232 ProtocolThis message will vary depending on the System 4xi model System 4xi -Initiated MessagesRelated Terms Simple Instruction SetCharacter Cmd/Rsp Dec Hex Function Simple Instruction ListAscii Simple Instruction ExamplesHex Switcher Response Error Codes DescriptionHex Response Result Description Selecting Inputs Using DelimitersExamples Aud/Vid Dsp/Sw Advanced Instruction List Error Codes ERCCommand Hex Description Advanced Instruction SetSelect Input CMD4 34h Hex, Decimal and Binary Examples for Converting Range ValuesERC Request Status CMD5 35hSet Slave Configuration CMD8 38h Change System Settings CMD6 36hConfigure an Input Channel CMD9 39h Request Input Channel Configuration CMD10 3Ah4 Configure System CMD11 3Bh4 ESC, CMD12, EOT Request System Configuration CMD12 3Ch4BAppendix B System 4xi Related Parts List Documentation Projector Communication Extension Cables ConnectorsChanging the Main Fuse Video Adapter CablesEnlever le couvercle du Systè me Les câ bles fournis à l’utillsasteurCâ bler un Systè me 4xi sur un rack Entfernung der System 4xi Abdeckung Verkabelung vom System 4xi innerhalb eines Gestells Figure B-10. System 4xi Main Controller Board Extrons Warranty Extron ELECTRONICS, Europe