Omega Speaker Systems VR200 Interface Terminal Terminal Assignment, Cable Termination

Page 7

1.2 Interface Terminal

1.2.1Terminal Assignment

SD A SD B SG G (signal ground)

MEMORY

RD A RD B FG G (frame ground)

Connect RD to TD of the host computer.

Connect SD to RD of the host computer.

Option terminal

Indication of RS-422-A terminals

Figure 1.1 Terminal Assignment

1.2.2 Cable Termination

Shield potential

RS-422-A terminals

Terminal screws: ISO M4, 6 mm long

Use crimp-on lugs (for 4 mm screws) with insulation sleeves for the leadwire ends.

Figure 1.2 Cable Termination

To prevent an electric shock, ensure that the main power supply is turned off.

1 - 2

Image 7

Contents User’sGuide Servicing North America Trademarks PrefaceContents Transmitting Functions Time Chart Initial Status Errors During RS-422-A OutputProgram Examples Interface Specifications Installing the RS-422-A InterfaceCable Termination Interface Terminal Terminal AssignmentData Configuration Communication WiringText Start-stop Asynchronous CommunicationBuffer Overflow Input BufferSetup Procedure Setting up the RS-422-A Communication InterfaceParameters IdentifierTerminator Example SR01,SKIP List of Program Set CommandsSetting the Range and Scale Format SRp1,modeExample SR01, DI, Format SRp1, mode, p2Format SRp1, mode, p2, p3, p4, p5, p6, p7, p8 Setting Alarms Copying the Channel Settings Setting the UnitSetting the Waveform Span Rate TIME/DIV Setting the ClockSetting the Partial Expanded Display Setting the Discrete Zone DisplaySetting the Tag Setting the Data File Name File Setting the Trip LevelSetting the Summer/ Winter Time DST Setting the LCD Brightness and LCD Saver LCDExample MD02, ON, on Format MDp1, p2, p3Initializing the Data Memory List of Program Control CommandsAlarm Acknowledge Standard Screen CallSelecting the Output Format for Measured Data Loading the SET Configuration FileSaving the SET Configuration File Selecting the Output DataMessage Writingfor the VR 200 with style number 2 or higher Status Output Execution of TriggerRequests for the data to be prepared in the buffer ESC C Crlf Open CommandClose Command ESC O CrlfSequence see also Sections 2.3.7 Introduction to Output Data FormatsOutput Data Formats Output Format of Measured Values in Ascii ModeOutput Format of Measured Values in Binary Mode Output Format of Parameter Settings Output Format of Unit and Decimal Point Information Time Chart Initial Status Output Preventing ErrorsESC S CR LF How to Request Error Message OutputTiming of Resetting the Error Status Environment Program ExamplesOpen TEST.DAT for Input AS #2 Others LF is sent automatically 210 ‘ 220 ‘ Open COM11200,N,8,1,LF AS #1 Print a Appendix 1 Ascii Code Table AppendixSystem-reserved File Names Appendix 2 File Naming RulesFile Name Length Lowercase/Uppercase LettersIndex Index for Command Reference Warrant Y/ Disclaimer Temperature