Cascade Connections, Stack Connections | Omron CS1W-ETN21 instruction

Network Installation

Section 2-4

Hub Installation Environment Precautions

Hub Connection Methods

Note

•Do not lay the twisted-pair cable near devices that generate noise.

•Do not lay the twisted-pair cable in locations subject to high temperatures or high humidity.

•Do not lay the twisted-pair cable in locations subject to excessive dirt and dust or to oil mist or other contaminants.

•Do not install the hub near devices that generate noise.

•Do not install the hub in locations subject to high temperatures or high humidity.

•Do not install the hub in locations subject to excessive dirt and dust or to oil mist or other contaminants.

If more hub ports are required, they can be added by connecting more than one hub. There are two possible connection methods for hubs: Cascade and stacked.

Cascade Connections

•Connect two hubs to each other as follows: Connect an MDI port to an MDI-X port with a straight cable; connect two MDI ports with a cross cable; and connect two MDI-X ports with a cross cable.

It is very difficult to distinguish cross cables and straight cables by appear- ance. Incorrect cables will cause communications to fail. We recommend using cascade connections with straight cables whenever possible.

•With cascade connections, up to 5 segments can be connected using up to 4 repeaters (i.e., 4 hubs).

MDI ports		Straight cable
MDI-X port	Hub	Straight cable
(cross)	Hub	Cross cable
Hub	Hub	Hub

Stack Connections

• Connect the hubs using special cables or special racks.

• Normally there is no limit to the number of hubs in a stack, and each stack

is treated as one hub. Some hubs, however, are limited in the number of

hubs per stack.

Hub

Four stackable hubs

Two stackable hubs

Stack cable

Stack cable

36

Image 61

Omron CS1W-ETN21 Cascade Connections, Stack Connections, Connect the hubs using special cables or special racks

Contents

Ethernet Units Construction of Networks Revised January Page  Omron Omron Product References Notation of Unit Versions on Products Unit VersionsConfirming Unit Versions with Support Software Lowing table Unit Version Notation Viii Table of Contents Ethernet Unit Memory Allocations Index 249 Revision History 257 Xii About this Manual Section Contents Relevant Manuals Manual Model Name Contents Number CXONE-AL@@C-E WS02-CXPC1-EV6CQM1H-PRO01-E CQM1-PRO01-E Xvi Read and Understand this Manual Application Considerations Disclaimers Page Precautions Safety Precautions General PrecautionsIntended Audience Application Precautions Operating Environment Precautions Application Precautions Applicable Directives Conformance to EC DirectivesConcepts EMC Directives Low Voltage Directive Section Connecting the CX-Programmer to PLCs Online via Ethernet Overall System Configuration ExampleEthernet Unit Function Guide Determining the Objectives Section Reference Exchanging Data between Omron PLCs using Ethernet Operation Operation Use the mail receive function Receiving E-mail Data and Files at the PLC Ulating control bits or the CMND490 instruction Ladder program Simplified Socket Services FeaturesCompatibility and Speed Various Protocols Available on Ethernet Additional E-mail Functions Improved Fins Message Communications Specification of Servers by Host Name Automatic PLC Internal Clock AdjustmentUse Web Function to Read Ethernet Unit Settings and Status Network Connection with Controller Link System Configuration System ConfigurationSetup Area and Related Peripheral Devices Devices Required for Constructing a Network Routing Table Area General Specifications SpecificationsSpecifications CS-series Ethernet Unit CJ-series Ethernet Unit Dimensions Software Configuration PLCs, mode changes, and file memory operations Fins Communications ServiceOverview of Communications Functions Basic Functions Upgraded Functions Socket ServicesManipulating Dedicated Control Bits Executing CMND490 Improved TCP Socket Interface Mail Send Function FTP Server Function Mail Receive Function Specifying Servers by Host Name Automatic Clock Adjustment Function Component Names Nomenclature and FunctionsCS-series Ethernet Units CS1W-ETN21 100Base-TX CJ1W-ETN21 100Base-TX CJ-series Ethernet UnitsFront IP Address IndicatorsSubnet Mask Indicator Color Status Meaning Previous models New models Comparison with Previous ModelsCS1W-ETN11 CS1W-ETN21 CJ1W-ETN11 CJ1W-ETN21 Upgrade Details Unit Version Upgrade InformationUnit Version FINS/UDP Installation and Initial Setup Tables Overview of Startup Procedure Setting the Unit Number Switch SettingsSetting the Node Address Setting range CJ-series Ethernet Units Unit Mounting to a CS-series PLC Mounting to a PLCMounting to a CJ-series PLC Basic Installation Precautions Network Installation Precautions on Laying Twisted-pair Cable PrecautionsBasic Precautions Recommended Products Cascade Connections Connect the hubs using special cables or special racksStack Connections Hubs per stack Mounting Location Using Contact Outputs Common to All UnitsCable Location Hub Measures Ethernet Connectors Connecting to the NetworkConnecting the Cable Connector pin Signal name Abbr Signal direction Creating I/O Tables Connecting Programming Devices to the PLC1 I/O Table Overview Devices Connecting Programming Devices Programming Console Procedure for Creating I/O TablesCX-Programmer Version 3.20 or Higher and CX-Integrator Model number Key Sheet required Recommended cable required Unit Setup Procedure Section Using the Web Browser Setting Function 3.. . Connect to the Ethernet Unit from the Web browser Section IP Address Basic Settings Unit Setup Default SettingOperation status +98 +99 Setting Contents Broadcast SettingsSubnet Mask Class Subnet mask Settings TCP/IP Keep-alive SettingBaud Rate Set the baud rate Socket Services Unit Setup for Particular ApplicationsCX-Programmer tab Settings CX-Programmer tab Setting Setup Keep-alive Mail Reception Automatic Clock AdjustmentSmtp POP CX-Programmer Setting item Tab Ping CommandCommunications Test Ethernet Unit Host Computer Converting from Previous ModelsMethod Application Examples Specifications in ETN11 mode Checking the CPU Bus Unit System Setup Area Format Bit address Format classification Changing the CPU Bus Unit System Setup Area Format Using the CX-Programmers Unit Setup Node address Indicators If an Error Occurred in the Mode ChangeNot lit Not lit Lit Converting from ETN21 Mode to ETN11 Mode Section CX-Programmer Unit Setup Contents Default Setup Confidential FINS/TCP FINS/TCP Connection Setup Tion of Applications Following settings can be made for each connection number DNS DNS Server Setup Smtp Smtp Server Setup POP POP Server Setup Mail Address Destination Mail Address Setup Send Mail CPU ETN Receive Mail Posting Mail Address Protection Setting Receive Command Setting Receive Attached File Setting Sntp Server Setup Auto Adjust Time For details, refer to Automatic Clock Adjustment Function Http Server SetupHttp Section Ethernet Unit Memory Allocations CIO Area Allocations Mail Send Switch Bit Socket Force-close Switch BitAutomatic Clock Adjustment Switch Bit Unit Control Bits CPU Unit to Ethernet Unit Opening Flag Bit Status of UDP/TCP Sockets 1 to 8 Ethernet Unit to CPU UnitBit Flag Status Manipulated Unit operation Reference Receiving Flag Bit Results Storage Error Flag BitSending Flag Bit Closing Flag Bit Accessing Memory Sending Mail Bit Service Status Ethernet Unit to CPU UnitFTP Status Bit Bit Name Status Manipulated Unit operation Reference System Setup Format Bits 8 to Accessing Memory Receiving Mail BitError Status Ethernet Unit To CPU Unit Sntp server error Unit FINS/TCP Connection Status Bit Switch Status Manipulated Unit operation Reference These bits show the status of FINS/TCP connections DM Area Allocations Send Mail Status Send Mail Status 1, 2 Ethernet Unit to CPU UnitBits Status +1 to m+8 Number of Bytes Received 0000 to 07C0 hex Application Setting device Setting area Remarks IP Address Display/Setting Area Auxiliary Area Data Words Bits Name Function SettingsArea of PLC memory that are related to the Ethernet Unit Read-only Bits/Words Bits Name Description Settings Read/Write Bits User Settings Section Determining IP Addresses IP Addresses IP Address ConfigurationAllocating IP Addresses Class Number of networks Number of hosts Subnet Masks Ethernet Unit IP Address SettingsClass Subnet Mask value IP Addresses in Fins Communications Specifying Nodes in Fins Communications ServicesAllocating Addresses to Ethernet Units Ethernet Unit Fins Message Reception IP Address Table Method and Combined Method Automatic Generation Method Dynamic/StaticRemote Fins node Remote IP address Connection Remote port Example Number Example FINS/UDP Communications Methods Pairing Addresses in Internal TablesAutomatic Generation Dynamic Automatic Generation Static Combined Method Example Prohibiting Dynamically Changing Remote IP Addresses Using the ETN11- compatible Mode FINS/TCP Communications Method Pairing in the FINS/TCP MethodInternal Processing Local Device Is FINS/TCP Client Local Device Is Server Setting FINS/TCP ConnectionsLocal Device Is a Client Application Examples Automatic IP Address Setting by Dhcp ServiceResponding to Computers with Changed IP Addresses FINS/UDP Communications Method Models Supporting Automatic Generation Method Dynamic Related Products and Communications/Setting Methods Models Supporting IP Address Table Method Models Supporting Automatic Generation Method StaticModels that Can Use the Combined Method Private and Global Addresses Private and Global AddressesFINS/UDP and FINS/TCP 108 Conditions for Using Communications Applications Using a Private Address for the Ethernet UnitFins Communications Service Transferring Files Automatic Clock AdjustmentSending Mail Receiving Mail Ethernet Unit with a Global Address UDP/TCP port number default 53 to be used for DNS cannot be Considerations, on using POP before SmtpMail via the intranet, even if it as a private address PLC can receive the Ethernet Units IP address from the POP3 Fins Communications Overview of Fins Communications Using the FINS/UDP and FINS/TCP MethodsCommunications On an Ethernet Network Fins Communications Service Specifications for Ethernet FINS/UDP Method FINS/UDP FeaturesOverview UDP Port Numbers for Procedure for Using FINS/UDP FINS/TCP Method FINS/TCP Features FINS/TCP Connection Numbers TCP Port Number for FINS/TCP Connection Status Word n+23 ProcedureCommunications Internal table Setup Tab Procedure for Using FINS/TCPFINS/TCP Tab Routing Table Overview Creating Routing TablesLocal Network Table Relay Network Table Connecting and Using a Peripheral Device for the PLC Example 2 Three Interconnected Networks Routing Table Setting Examples Example 3 All Nodes System Configuration Example 1 No Routing Using Fins ApplicationsSettings for target PLC PLC1s Change PLC Dialog Box CX-Programmer CX-Server CX-Programmers Unit Setup Setup Tab 128 Routing Table Settings and Transfer to Each PLC System Configuration Example 2 Using Routing TablesSettings for target PLC PLC3s Change PLC Dialog Box PLC3 Etnunit Driver Setup Overview of Setup Methods Starting FinsGateway SettingsFinsGateway Local Network Table Communication Unit Tab Network Tab 132 133 Conditions Starting FinsGateway Etnunit Service CX-Programmers Unit Setup Communications SpecificationsNot set. All defaults are used Communicating between Omron PLCs Area Range PLC Communications Data Areas SEND090 Using SEND090, RECV098, and CMND490Ning word D at the remote destination node node address N RECV098 Hex 2 s Destination node number N To FE Hex CMND490 Usage Command Name Function Code Commands Addressed to CS/CJ-series CPU Units Writing Programs Flag name Address Contents Word Bits Word Contents Communications Port Error Flag and Completion Codes CMND490Communications Port Completion Codes Timing of Communications Flag Changes 144 Program Example 146 CPU Bus Unit Service Cycle Local Node Transmission DelaysCPU execution mode Processing time considerations SEND090 Transmission Delay CPU Bus Unit Service Processing Time Local NodeCPU Bus Unit Service Cycle Remote Node Transmission Processing Time CPU processing mode Processing time considerations Settings CPU Bus Unit Service Processing Time Remote NodeExample Calculations Calculation RECV098 Equation illustrated in the following diagram Transmission Delay Command Transmission processing time commandReception processing time command Response 152 Conditions for High Traffic Precautions on High Traffic in Fins CommunicationsCalculations Avoiding Errors due to High Traffic Fins Commands Addressed to Ethernet Units Command Code List Command Codes and Response CodesResponse Code List Command code Name Format Socket Applications Communications Type ParametersCIO Reset Command/Response Reference IP Address Conversion Method Setting Broadcast Address SettingFINS/UDP Port Number Setting Controller Data Read Controller Status Read IP Address Error Error Flags ResponseIP Address Table Error IP Router Table Error Internode Echo Test Eeprom ErrorRuns the echo test between specified nodes Test Data Command, Response Command Block Response Block ParametersBroadcast Test Results Read Broadcast Data Send Test Data Command Error LOG ReadReads the error log Bytes can be specified Error Log Data Response Error LOG ClearError Code, Detailed Information Minute, Second, Day, Hour, Year, Month Results Storage Format UDP Open RequestRequests processing to open a socket UDP Receive Request UDP Socket Number Command Results Storage Area CommandRequests that data be sent from a UDP socket Enobufs Results Storage Area Response Codes UDP Send RequestRequests that data be received by a UDP socket 170 Requests processing to close a socket UDP Close Request Response code Description 0000 Normal Passive TCP Open Request Remote IP address Remote TCP port Description Active TCP Open Request EconnresetEconnaborted Tunreach 175 Drnotavail Eacces Requests that data be sent from a TCP socket TCP Receive Request Requests that data be received at a TCP socket TCP Send RequestEtimedout Results Storage Format Parameters Enetunreach TCP Close RequestEhostunreach Ping Destination IP Address Command Timeout Value CommandResponse Block Parameters FINS/TCP Connection Remote Node Change Request Ping CommandRemarks FINS/TCP Connection Status Read FIFINS/TCP Connection No. Command Response2232 Reads the FINS/TCP connection status IP Address Table Write Number of Records CommandRemote TCP Port Number Response TCP Transitions Response Writes the IP address table IP Address Table Records Command Precautions Response CodesIP Address Write Fins Node Address Reads the IP address table IP Address Table Read Reads the IP router table IP Router Table Read Router IP Address IP Network Address Reads the Ethernet Unit protocol status Protocol Status ReadIP Status Response Value Type number Description Connection Information 60 Bytes Receive Information Send Information 40 Bytes Memory Status Read Memory Status Response Socket Status Read TCP Transitions 4 bytes Address Information ReadReads Fins node addresses and IP addresses Number of Addresses Response Node address set on the Ethernet Unit hexadecimal IP Address ReadIP address set on the Ethernet Unit hexadecimal Fins Node Address Response Subnet Mask Response Troubleshooting Probably cause Correction Troubleshooting with Indicators Word = CIO 1500 + 25 x unit number +18 Error Status Logged Errors Error LogFollowing errors are recorded in the error log Error Log Table Error Log Error CodesError Log Location Fins Commands for Error Logs 204 205 206 207 208 Startup Problems Troubleshooting Procedures Is the control data For the instruction set Incorrectly? Fins Communications Problems SEND090/RECV098/ CMND490 General Problems UDP Socket ProblemsProblems Opening and Closing Read Controller Status Reception Problems Is send Y processing not Finishing? Transmission Problems General Problems TCP Socket Problems Closing Problems Opening ProblemsRefer to General Problems on 216 Connection Problems FTP Service Problems END File Transfer Problems Status Read Network Connection Problems A R T Mail Not being Sent A R T Mail Not being Received Flashing? Status bit ON? Clock Not being Automatically Adjusted Main code Sub-code Check point Probable cause Remedy Troubleshooting with Response CodesController Status Read 224 225 226 Results Storage Area Response Codes Network Relay ErrorsCodes stored in the Results Storage Area Devices Enotconn EisconnEalready Emsgsize Response Unix error Description Probable remedy Code 230 Parameter Value Description Ethernet Network ParametersPage Appendix B Buffer Configuration Network Memory Status Meaning TCP Status TransitionsPage Space Ascii CharactersPage Settings after Replacing an Ethernet Unit MaintenanceSettings after Replacing a CPU Replacing an Ethernet UnitPage Items InspectionsTools Required for Inspection Page Ethernet Unit Web Function Unit Setup FunctionsWeb Function List POP Appendix G Using the Web Function Setting Password Web Function PasswordStatus Monitor Menu item Corresponding CX-Programmer function Appendix G 247 248 Numerics Index 251 252 253 254 255 256 Cat. No. W420-E1-04 Revision code Revision History Revision History Regional Headquarters Omron Corporation Control Devices Division H.Q Authorized Distributor