4 1N Connection among RS-422A Ports | Omron NT631C instruction

Connecting to the Host’s RS-422A/485 Port

Section 5-2

5-2-4 1:N Connection among RS-422A Ports

The connection method in which the RS-422A ports of multiple NT631/

NT631Cs and one host are connected in a 1:N connection is described here.

CPU Unit

CS/CJ-series PLC,

C200HX/HG/HE(-Z)E

9-pin connector

RS-422A cables

(max. total length 500 m)

NT631/NT631C

Serial port B

(RS-422A/485, terminal block)

NT631/NT631C

NT631/NT631C

Reference: • Communications using the RS-422A standard NT link (1:N) method is possible only when a Serial Communications Board is installed in a CS- series PLC, a Serial Communications Unit is installed in a CS/CJ-series PLC, a Communications Board is installed in a C200HX/HG/HE(-Z)E, or a CQM1H-SCB41 Serial Communications Board is installed in a CQM1H.

•Communications using the RS-422A high-speed NT link (1:N) method is possible only when a Serial Communications Board is installed in a CS- series PLC or a Serial Communications Unit is installed in a CS/CJ-series PLC.

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Omron NT631C manual 4 1N Connection among RS-422A Ports

Contents

Setup Manual NT631 and NT631C Programmable Terminals Page Omron Product References Page Table of Contents Index 291 Revision History 295 About this Manual Connecting to Controllers Not Made by Omron Connecting and Setting Up the Programmable TerminalProgrammable Terminal Functions and Operation Read and Understand this Manual Application Considerations Disclaimers Xiv Precautions General Precautions Safety PrecautionsIntended Audience Conventions used and their meanings are presented below Safety Precautions Xviii Section Panel Switch Functions Role and Operation of the NT631/NT631COperation of an NT631/NT631C at an FA Production Site Mitted to the host Operations of the NT631/NT631C Displays ScreensReceives Data from a Host Sends Data to a Host NT631/NT631C has the following features FeaturesFunctions of the NT631/NT631C Section Section Comparison between NT631 and NT631C Comparison between NT620S/NT620C/NT625C and NT631 NT631CNT620S/NT620C/NT625C NT631/NT631C NT-ZJCAT1-EV4 Data areas listed below can be accessed Principal Functions of NT631/NT631C Following are the principal functions of the NT631/NT631C Input by touch switches Numeral/character string setting functionSystem program install function Screen display history function/alarm history function Displays Fixed Displays Touch Switches LampsNormal Standard Lamps Image/Library Lamps Numeral Display String Display Numeral Input String Input Thumbwheel Switches GraphsBar graphs Analogue meter System Configuration Alarm List/HistoryAlarm List Alarm History Peripheral Devices That Can Be Connected Host Connecting to the Host Communications with the HostDirect Connection Function Serial Port a Features of the Direct Connection Function Host Link NT Link Section Communications Using Memory Links Connecting to Other Companies’ PLCsMemory Link Compatible PLC Comparison between Direct Connection and Memory Link Memory Link Online Transfer Function Before Operating Device or Software Manual Title Manual Number Sysmac CPM1/CPM1A/CAM2A/CPM2C/SRM1-V2 Preparing for Connection Method for Connection to the Host Communications Methods That Can Be Used with the Host Combinations of Communications Method and Connection Method NT631/NT631C and the host are indicated in the table belowConnection possible ⋅ Connection not possible RS-422A RS-232C Connection via a convertor unit RS-485 Direct 11 connection 1N connection Power LED Names and Functions of PartsFront View Reference The NT631/NT631C comes in two body colors Rear View Hardware Settings and Connections Installation Environment InstallationInstallation in the Operation Panel Power Supply Connection Power Supply Applicable power supply specifications are as followsGrounding Parts Used for Connection Recommended Connector Cable Connecting to the Support ToolCommunications Conditions Connecting a Printer Connecting a Bar Code ReaderConnection Method Reference Setting a Bar Code Reader Possible Settings Default SettingPossible Settings EVEN, ODD, None Data Format About RS/CS ControlSTX ETX Using a Memory Unit PT Model Function of Memory Unit Installation Method DIP Switch FunctionsSwitch Function Method of Use SW2 Method of Execution SW2-4 on System/Screen transmitted simultaneously Reference Reading and Writing Data by Manual Transmission Current PT Screen Data, System Current PT Screen Data, Screen Current Memory Unit Screen Data Errors When Using a Memory UnitSource Destination Error Probable Cause Remedial Action Connecting to the Host from the RS-232C Port Host Types and Settings Connecting to the RS-232C Port at the HostWhen Using the Host Link Method Compatible Host Units C20HE-CPU42-ZE CPM1+CPM1-CIF01 CPM2A Connecting to a C-series Host Link Unit Settings at The Host Switch Setting Setting the Rear Switches CTS Supply CPU Bus Unit Settings Setting at Host PLC Setup CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1 CQM1H PLC model Connection methodCPM2A, SRM1 PLC Setup Area Settings Word # Writing Value Settings Connecting to a CPM2C When using a CPM1Port connecting to PT PLC Setup Setting the Switches of a CPM2C Setting the Switches of a CPM2ASetting the Switches on a RS-232C Adapter Using the CPU Unit’s Peripheral Port CS/CJ-series CPU Unit CS1G/H-CPU@@-EV1, CS1G/H/D-CPU@@H Connecting to CS-series Serial Communications Board Allocation DM Area Settings for CPU UnitSetting the Front-panel Switches Allocation DM area words Writing Value Settings Port When Using the NT Link 11 Method Compatible Host Units Allocation DM area CH Writing Value Settings Port CQM1H-CPU51 CQM1H-CPU61 Host Model Word # Writing Value Setting Setting methods for each Unit are as followsHG/HE-ZE, CPM2A, CPM2C CQM1, CQM1H, SRM1 CPM2C-CN111 CPM2C Using the NT Link 1N Method Setting the Switches on an RS-232C AdapterConnecting to CVM1/CV Series -EV@ Set the DIP switches on the front panel as follows CS Series CS1G-CPU42/43/44/45-EV1 CS1G-CPU42/43/44/45-EV1 *1 Setting the DIP Switches of a C200HX/HG/HE-ZE Connection to Word # Writing Setting Using the CPU Units Built-in RS-232C Port Connecting to CS/CJ-series Serial Communications Unit CPU Unit Allocation DM Area SettingsAllocated DM Area words Setting Setting Contents Port Settings required for each Unit are described below Using the High-speed NT Link 1N MethodConnecting CS/CJ-series CPU Units Connecting to a CS-series Serial Communications Board Word # Setting Setting Contents Connecting to a CS/CJ-series Serial Communications Unit Connecting Directly between RS-232C Ports When Using the Memory Link MethodSettings at the host Word m = DM30000 + 100 ⋅ unit number Omron Cables with Connectors Model Cable Length Connector SpecificationCheck the required components and prepare them in advance Name Model Remarks Delivered with Wiring for Other Connections Wiring for a Host Link Unit 25-pin ConnectionSerial Port A, B Wiring for a Memory Link Connection NT631/NT631C PLC Host link unit Pin type Host side Section Connecting to the Host from the RS-422A/485 Port Connecting to the Host’s RS-232C Port Settings at the RS-232C RS-422A Adapter NT AL001 Type of Host and SettingsMethod Reference Example the terminal resistor is active RS-422A, NT Link 1N Connecting an NT631/NT631C and NT-AL001 RS-485 Connecting an NT631/NT631C and NT-AL001 RS-422AConnecting an NT-AL001 and Host Wiring When Connecting a Host Link Unit 25-pin Wiring for Connections Other Than Memory Link C200HX-CPU65-ZEC200HX-CPU85-ZE CVM1-CPU01-EV2CVM1-CPU11-EV2 CVM1-CPU21-EV2 C200HX/HG/HE-ZE Connecting an NT631/ NT631C and NT-AL001 RS-422A Connecting an NT631/ NT631C and NT-AL001RS Connection between NT631/NT631C Units RS- 422A Connection between NT631/NT631C Units RS Recommended Connectors, Cables, and Crimp Terminals Connectors and Cables Recommended for RS-232C Cables with Connectors Made by Omron C200HX/HG/HE-ZEIFVV-SB Name Model Maker Remarks TKVVBS4P-03 Connecting to the Host’s RS-422A/485 Port RDA Standard or high-speed RS-485 cable Max. total length 500 m Below C200HE-ZEC200HG-ZE C200HX-ZE CVM1-CPU11-EV2 CVM1-CPU21-EV2 SRM1 Instruction level, parity, and transfer code SW4 Port selection selector switch Set this to RS-422A Port selection selector switch Set this to RS-422A Supply 100 Connecting to a CPU Unit CVM1/CV-series -EV@ CPU Units C200HX/HG/HE-ZE, CPM1, CPM2A, CPM2C, CQM1H, or SRM1 DIP SW4 When using a CPM1, CPM2A, CPM2C, SRM1 When using a CQM1H Setting Switches on a CQM1H Serial Communications Board Setting Switches on a C200HX/HG/HE-ZE Communications BoardSetting the Switches on an RS-422A Adapter DM Area Allocation Settings Serial Communications Board Switch SettingsAllocated DM Setting Setting Contents Allocated DM Area Setting Setting Contents Words Port Using the NT Link 11 Method= DM 30000 + 100 ⋅ unit number Connecting to a C-series C200HX/HG/HE-ZE Host Model Word # Setting Setting Contents 108 Series C200HX/HG/HE-ZE Connection to Word # Setting Setting ContentsCPU Units with CPU Unit that becomes Model Name 110 111 112 Allocated DM Area Setting Setting Contents Port DM32010 8200 1N NT Link Mode 114 Connecting an NT631/NT631C and Host RS-422A Direct Connection between RS-422A Ports at Both Units Connect to the PLC through a CPM1-CIF11 RS-422A Adapter Wiring When Connecting CPM1, CPM2A, CPM2C, or SRM1CS1W-SCU31-V1 Wiring When Connecting a CVM1/CV-series CPU Unit CVM1-CPU01-EV@CVM1-CPU11-EV@ CVM1-CPU21-EV@ Connecting an NT631/NT631C and Host Direct Connection between RS-485 Ports at Both Units 4 1N Connection among RS-422A Ports Connecting between NT631/NT631C Units Connecting an NT631/NT631C and a Host 5 1N Connection among RS-485 Ports C200HX-CPU65-ZE/85-ZE CQM1H-CPU51/61 Connecting an NT631/ NT631C and a Host Recommended Connectors, Cables and Crimp Terminals Connectors and Cables Recommended for RS-422A/485 For M3.5 Examples of Applicable TerminalsFor M3 Connecting the Ground Wire Preparing the Shield of RS-422A/485 ConnectorsHandling the Shield on RS-422A/485 Cables Terminals Example of Recommended Wiring System Menu Operation 128 System Menu Operation Flow Starting the NT631/NT631COperation at Startup Initial Processing Operation Modes and the System Menu Relationships among Modes RUN Mode Menu Item Function Menu Tree Functions of the System Installer ModePLC, CPM1, CPM2A, CPM2C, CQM1, CQM1H, C200HX/HG Operations with the System Menu System Menu Memory INIT. Menu Reference Calling the System Installer Mode Pressing a Touch Switch That Displays The System MenuTouching The Corners of The Touch Panel Selecting Menu Items Memory Initialization Press Maintenance ModeClearing Screen Data Select Maintenance Mode Initializing Display History Record Data Initializing Alarm History Record Data 139 Initializing the Recipe Tables System Menu shown below Initializing the Memory Tables Menu shown below 142 Initializing the Memory Switches Operations in the System Installer Mode Setting the Display Language in the System Installer ModeMemory Switch Status OFF Clearing/Installing the System Program Select Run System Clearing the System Program Downloading the System Program Disabling/enabling System Menu Display Changing the System SettingsDisabling/enabling Writing to The Screen Data Memory 148 Transmitting the Screen Data 150 Select Transmit Mode Select Tool Transmit Precautions to Be Observed When Transmitting Screen Data About Communications Conditions Port Communications Method/Communications Type Settings Communications Condition Settings for The Host Link MethodCommunications Condition Settings for The NT Link 11 Method No further communications conditions need to be set Possible Combinations Communications Method Settings Setting the Host Link Method Select Maintenance Mode Select Memory Switch 156 Setting the NT Link 11 Method Setting the NT Link 1N Method Standard/High-speed 159 Setting the Memory Link Method 161 Setting the Communications Type for Serial Port B Transmission of The Contents of Memory Tables Starting OperationDisplay of The System Initialization Screen Display of The Startup Screen Memory Switch Setting Screens Various System SettingsMemory Switch Settings Setting the Start-up Wait Time For the bar code reader, refer to Setting the Key Press Sound Setting the Buzzer Sound 167 Setting the Printer Controller Setting the Print Method NT631C Only Setting Screen Saver Movement 171 172 Setting the Screen Saver Start-up Time 174 Setting the History Display Method Tem Menu shown below Setting the Resume Function 178 Setting the Automatic Reset Function 180 Setting the Time-out Interval Comm. Auto-return on Setting the Retry CountComm. Auto-return OFF Shown below Communications Condition Settings for Bar Code Readers Setting the Bar Code Reader Input FunctionDefault factory setting Setting Communications Conditions and Setting Method 186 System Maintenance 11-1 I/O SettingsContrast Adjustment for NT631C-ST141@-EV1 only Setting from the System Menu Decrease 10 steps 189 190 Displaying/Setting the Calendar and Clock 192 Checking the PT Setting Status Display ContentsDisplay Contents of The First Screen Display Contents of The Second Screen Displaying and Printing the Display History Record Display Method 195 Displaying and Printing the Alarm History Record Example Print-outSort by occurrence, from oldest record YY/MM/DD Hhmm 197 Sort by occurrence method, from oldest record Checking Screen DataYY/MM/DD Operations On The Screen Data Check Screen Specifying The Display MethodON, OFF Select Maintenance Mode Select Screen Data Disp Displaying the Screen Data Check Screen Backlight Screen data memory Touch switches Battery voltage Device Check Checking the Buzzer Buzzer Sound memory switchCheck if the buzzer sounds correctly 203 Checking the LCD Screen Display Checking the Backlight for NT631C only Touch switch is displayed in reverse video Screen Data MemoryCheck if the screen data memory is functioning normally Check 206 207 Reference Checking the Battery Voltage Checking Interfaces Checking Communications with the Support Tool Check Screen Checking Communications at Serial PortsFor Host Link For Memory Link For NT Link 11, 1N Standard, or 1N High-speedFor a Bar Code Reader Select Maintenance Mode Select I/O Check Select I/F Check Check Method Checking Communications with a Printer Programming Console Function Usable Systems Communica Applicable PLCs Connected Port Tions Method CQM1, CQM1H, C200HX HG/HE-ZE, or SRM1CPM1 or CPM2A CS/CJ-series PLC Mode lock key, which prevents unintended mode changes Key Operations Mode Selection Keys, Mode Lock KeyTouch panel to display the System Menu During Lock on During Lock OFFProgramming Console Keyboard 219 Device Monitor Function CQM1H or C200HX/HG/ HE-ZE CQM1 or C200HS Compatible SystemsCommunications PLC model Method CPM1, CPM2A, or SRM1 Adapter or CPM1-CIF11RS-422A Adapter232C Adapter, or a CPM1-CIF11RS-422A Adapter Method is exactly the same as for the 1N NT Link Version Display 224 Troubleshooting and Maintenance Troubleshooting NT631/NT631C Cause Remedy SymptomsRemedy indicated in the table Do not disassemble the PT for repair or modification Programming Console Function Omron 228 Responding to Displayed Error Messages Errors Occurring at Start of Operation and Their RemediesNance Mode Message Cause Remedy Erly referring to Replacing the Backlight Menu Errors Occurring during Operation and Their Remedies NT631/NT631C and their remedies NT631/NT631C, and the remedies for these errors Errors in the System Installer Mode and Their RemediesDies Parity error at serial port a Communications Errors and Their RemediesReceive Errors Error Details Displayed Probable Cause Remedy Send ErrorsProbable Causes and Remedies Maintenance of the NT631/NT631C Guide to Backlight ReplacementSpare PT Backlight for NT631C- ST141@-EV2/ST151@-EV2 only Replaceable Backlight Model Procedure Replacing the Backlight Fitting The Touch Panel Cable 238 NT631C-CFL02 for NT631C-ST141@-EV2 240 Replacing the Battery Battery TypeGuide to Replacement Battery Replacement Method Inspection and Cleaning Cleaning MethodRemove them during cleaning Used in its optimum condition Items Required for The Inspection Inspection MethodPoints Inspected 244 Specifications General Specifications Appendix a Appendix a Display Specifications Performance SpecificationsRUN External Interface Specifications Panel SpecificationsSpecification Specifications Special FeaturesProgramming Environment Communications Specifications For a Host Link, RS-232C EIA RS-232C For a Host Link, RS-422A For an NT Link, 11, RS-232CFor an NT Link, 11, RS-422A For an NT Link, 1N, RS-232C For an NT Link, 1N, RS-422A/485 For a High-speed NT Link, 1N, RS-232CFor a High-speed NT Link, 1N, RS-422A/485 For a Memory Link, RS-232C For a Bar Code Reader For a Memory Link, RS-422ARS/CS 254 Dimensions Body Mounting Dimensions Cable Connection Dimensions with NT-MF261 258 Methods for Mounting and Removal Using an RS-232C/RS-422A Adapter DimensionsMounting to a DIN Rail Removal from a DIN Rail Mounting to an Operation Panel Specifications DIP Switch Settings 262 RS-232C Connector CSB and CSA signals are for specialized applicationsPin Arrangement RS-422A/485 Terminal Block Block Diagram Appendix D Transporting and Storing the NT631/NT631C Appendix D Cable with Shielding Wire Connected to FG Cable with Shielding Wire Not Connected to FGMaking the Cable Cable Preparation Soldering Hood Assembly Assemble the connector hood as shown below 270 Making the Cable for Connecting a PLC Assembly of Connecting CablesPin Connector Name Model Remarks Appendix F Connector and Related Parts Wiring MethodMaking the Cable for Connection to a Bar Code Reader Appendix G Appendix H Making the Cable for Connection to a Printer Appendix H Relationship between system program Hardware Model History System programNT-ZJCMX1-EV2 NT-ZJCMX1-EV3 Combining a -EV1 Version and Version without a -EV@Suffix Combining a -EV1 Version and -EV2 Version Combining a -EV2 Version and Version without a -EV@Suffix Appendix Model List PTs Host Link UnitsCompoBus/S Master Control Unit Communications Unit CPU Units for Connection via a Host Link Model Specification PLC TypeC200HX-CPU65-ZE C200HX-CPU85-ZE CQM1-CPU41-EV1 CPU Units for Connection via a 11 NT LinkCQM1H-CPU51 CQM1H-CPU61 CPU Units for Connection via a 1N NT Link CPU Units for Connection via a High-speed NT Link 1N Cables with Connectors for PT ↔ PLC/NT-AL001 RS-232C/RS-422A AdapterRS-232C Adaptor, RS-422A Adaptor Related Parts and Equipment for PT Applicable Connectors Connecting Cable for the CPM2C Communications ConnectorConnection Cable Printer Cable Appendix K Option List Replacement Battery .. G2A9-BAT08 This is a lithium battery used for memory backupChemical-resistant Cover ... NT625-KBA01 Protects against Does not protect against Memory Unit ... NT-MF261 290 Numerics Index 293 294 Revision History Cat. No. V063-E1-03 Revision code Revision History Terms and Conditions of Sale Omron Electronics LLC