RS-422A, RS-485 Connections | Omega RD200, RD2800 guide

4.CONNECTIONS

4.7 Communications terminals

3RS-422A, RS-485 Connections

RS-422/485 communications interface is connected to a personal computer via a line converter (our Model SC8-10: sold separately). Three signals of SD, RD and SG are used between the line converter and the personal computer but any control signal is not used. Wiring processing for control signal in a connector is

necessary in the same as	2		RS-232C connections.
1) RS-422A
Personal computer			Line converter
(9-pin or 25-pin connector)*			(SC8-10)

RD 2

SD 3

ER 4

SG 5

DR 6

RS 7

CS 8

Example of 9-in connector

1 RD

2 SD

3 SG

4

RDA 5

RDB 6

SDA 7

SDB 8

RD200/RD2800 hybrid recorders
(1)	(2)	(3)
SDA	SDA	SDA
SDB	SDB	SDB
RDA	RDA	RDA
RDB	RDB	RDB	Termination
SG	SG	SG	resistance
			100 Ω, 1/4W

Within 15 m		Within a total length of 1.2 km (max. 31 recorders)
Within 15 m		Within a total length of 1.2 km (max. 31 recorders)

*For the details of the wiring, refer to 2 RS-232C connections.

2) RS-485

Personal computer

(9-pin or 25-pin connector)*

RD 2

SD 3

ER 4

SG 5

DR 6

RS 7

CS 8

Example of 9-in connector

Line converter

(SC8-10)

1 RD

2 SD

3 SG

4

RDA 5

RDB 6

SDA 7

SDB 8

RD200/RD2800 hybrid recorders

(1)	(2)	(3)
SA	SA	SA
SB	SB	SB
SG	SG	SG

Termination

resistance

100 Ω, 1/4W

Within 15 m Within a total length of 1.2 km (max. 31 recorders)

*For the details of the wiring, refer to 2 RS-232C connections”.

－２０－

Image 24

Omega manual RS-422A, RS-485 Connections, Example of 9-in connector, RD200/RD2800 hybrid recorders

Contents

Page Page Page Page Preface Request and notice Requests Contents Maintenance Functions OptionsOther Programmable Parameters / Functions Symbols in This Manual For Safe USEPreconditions for Use Labels on This Instrument Power supply label SPT001.2508 250VAC Major Features and Functions FeaturesFunctions Major functions are shown below Display Printing General Confirmation of Model NoRD204 AL00 X A001 RD2804 AH00 X A001 Accessories and Consumables Accessories attached ConsumablesFront Rear Article Model Min. qty Location and External Dimensions External Dimensions Installation to a Panel InstallationClosed- installation Mounting method Configulation FrontWindow of the door Display Terminal Board Arrangement Remarks Connections 4.2 Cautions on Connections Power Terminals Connection of power terminalsRemarks L/N indication of power terminals Mark at power terminals Measuring Input Terminals Measuring input terminalsConnections of thermocouple inputs Connectionsofresistancethermometerinputs Alarm Output Terminals Alarm output terminalsConnections Output contact rating Wiring Remote Contacts TerminalsRemote contacts terminals Remarks Remote contacts terminals Pin connector Communications terminalsCommunications terminals RS-232C Connections Example of 9-in connector RS-422A, RS-485 ConnectionsRS-422A RS-485 Chart Paper Loading RD200 Chart Paper Cassette RemovalChart Paper Loading Open the door Chart Paper Setting Remarks Chart paper foldsCheck Remarks Turningdirectionofthumbwheel Chart Paper Loading RD2800 Rear stripper plateCassette during printing Place the chart paper cassette in its the original position Remarks Turningdirectionofthethumbwheel Preparation for Installation Recording Pen LoadingRecording Pen Types Plotter Pen Loading Cartridge Pen LoadingRD200 RD2800 Power Supply and Operation Power Supply On/OffInitial Operation Operation Chart End Detection Printing On/OffPrinting Operation Fast Feeding of Chart Paper Reference 1 Manual chart feedingRemarks Fast feeding condition and operation Remarks 2 Time scale 1 to Alarm activation screen Measured value screenClock screen This screen is only available when an alarm activates Chart speedTime Programming Keys and CharactersKeys and Their Abbreviations Characters Displayed in Programming Key Functions Functions by Pressing Single KeyFunctions by Pressing Two Keys Simultaneously List of Programming Items Parameters to be Programmed FirstOther Programmable Parameters and Functions Programming for Options 20/25 RemoteRecord Programming Procedures Basic of Programming Flow Chart Programming Errors and Remedial Measures Error Judgement Flow ChartType of Errors and Error Display Remedial measures when an error occurs Turning On the Power supply Default parametersBasic Programming Parameters 07 ±5 V/0.000 to 5.000 Programming Mode and Parameters Programming modeRange/Printing Range            Range No. Tables Voltage inputThermocouple input *1 Resistance thermometer input *2 Programming Mode C/F Computation Selection   Chart Speed Programming      Printings Printing Types and the DetailsPrinting Types and the Details Printing Examples Digital Data Printing Example of Digital data printing 4-pen type List Printing List 1 Printing Printing List 2 PrintingList 3 Printing List 2 printing details Execution with external Reference contact signal Message Printing Selection Flow Chart Printing Format Selection      Types of Printing Format Flow Chart For Selecting Time Axis Synchronization Time Axis Synchronization POC     When the chart speed is 150 mm/h or faster OperationsFixed-Time Printing and Intervals Operations at Abnormal Inputs Over-range inputInput Disconnection Definition of input Alarm Display and Printing Display of Alarm ActivationAlarm Activation/Reset Printing Time         Scale Programming ScalePrinting range will be copied Example of Decimal Point Programming       Programming Skip Flow Chart Skip Channel Deletion Skipping New Programming Flow Chart of Skipped Channel  Subtract Printing      Subtract Printing Types        Alarm Alarm ParametersAlarm Types Absolute value alarms ，，， Rage-of-change alarm ，Differential alarm ，，，            Other Programming Alarm Deadband Alarm Deadband         11.7Periodic Data Printing      Periodic Data Printing Engineering Units Case no engineering unit is programmedIf the range No. is changed If clear is stored at scale programming             If clear is stored in the scale mode TagsExample of tag printing RD200      Remarks To program tag to none Reference 1 To check all programmed digits Message Contacts option. See Section～Z simultaneously for 3 seconds Simultaneously to clear the digit No. and press       Remarks To program message to none Burnout      Passcode/Key Lock PasscodeKey Lock When a passocde has not been programmed          When a passocde has been programmed      None            Input Filter         Alarm Output Alarm Output Programming ItemsProgramming Items for Alarm Output Details of Programming Items Alarm Output Terminals and the Status Programming of Relay No        Output Wiring AND/OR Setting Selecting Flow Chart       Programming Output Mode MOS relay and mechanical relay a contact alarm outputPower off Alarm reset Alarm activation Mechanical relay c contact alarm output Latched Alarm Display/Relay Hold/Not hold Not hold（）Hold（） Reference Blinking of measured value                Selecting relay coil Functions and Terminal Contact Signals Remote Contacts FunctionRemote Contacts Contact signal to terminals Remote Contacts Functions TerminalAllocation for Operation     Programming 3 Chart Speeds              Printing Format 14.1ProgrammingAutomatic Range-Shift PrintingAutomatic Range-shift              14.2Programming Compressed/Expanded Printing Compressed/Expanded printingScreen 3 Programming break point printing position Screen 4 Scale programming of each printing position                  Programming Zone Printing Zone PrintingScreen 2 Programming number of zones Screen 4 ProgrammingchannelforzoneNos.2to4 Programming Flow Chart RD200        Programming Flow Chart RD2800                     Communicationsinterface 15.2 Programming communications Math Expressions TotalizingRemarks Math expressions and totalization Shunt Resistor for Current Input Shunt resistor Option and Measurement CurrentrangeConnection Range/Printing range and Scale Transmitter Power Supply Transmitter Power Supply Adjustment Adjustment of Measured ValuesAdjustment Adjustment of measured values DC voltage input DC standard voltage Generator Resistance thermometer input                                 Adjustment of Printing Position Adjustment Flow Chart     Time-axis Adjustment of Pens Adjustment procedure    ROM Version Check            Printer Check        Cancellation of display check Display Check   Order of check lighting Measuring Input Check         Alarm Output Check          Remote Contacts Input Check         Communications if Check RS-232C RS-422A RS-485Short SD and RD terminals Short SDA and RDA terminals Short SDB and RDB terminals   Reference 3 Communications check Operation Flow Chart Memory Clear       Maintenance Daily InspectionConsumable parts check Operation check Cleaning and Lubrication Cleaning the DoorRemarks Caution on cleaning and lubrication Main Shaft of Plotter Pen Before starting adjustments Measured Values CheckChannels to be checked Remarks Totalization channel Checking Method Standard variable Resistor Resistance thermometer inputInput the printing range T of 0%, 50% and 100% from a Troubleshooting Not WorkingMeasured Value Abnormal Display Abnormal Printing AbnormalOther Troubles Are displayed  is displayed at the left end Recommended intervals of parts replacement Operation conditionsParts to be mounted Consumable parts Component parts Specifications Input SpecificationsPrinting Alarm Indication and DisplayProgramming and Operation General specifications Safety Regulations Accuracy Ratings Exceptions to accuracy rating Alarm outputs OptionRemote contacts Printing format