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Perle Systems SCS, STS manual Modbus Slave, UDP Unicast Example

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I/O Modbus Slave

UDP Unicast Example

For an example of the I/O UDP unicast, see the sample program, ioudpbcast.c, found on your CD-ROM.

I/O Modbus Slave

If you have a Modbus serial or TCP application, it can access I/O connected to the IOLAN when the I/O Global Modbus Slave is enabled. You must supply a unique UID for the IOLAN, as it will act as a Modbus Slave.

There are three ways your Modbus Application can connect to the IOLAN to access I/O.

Modbus Serial Application Connected to the Serial Port

Your Modbus serial application can be connected right to the IOLAN serial port to access I/O.

		Serial	UID: 15

			perle

		a	IOLAN
PC running
Modbus Serial
Application

Power

I/O Digital

Output

Modbus Serial Application Connected to the Network

If you want to access the I/O from a LAN connection, you can install TruePort on the PC running the Modbus serial application as described in TruePort I/O on page 273 and connect to the IOLAN over the network.

Network

PC running a

Modbus Serial

Application

UID: 15

perle

IOLAN

Power

I/O Digital

Output

267

Image 267

Perle Systems SCS, STS manual Modbus Slave, UDP Unicast Example, Modbus Serial Application Connected to the Serial Port

Contents

Iolan SDS/SCS/STS EN 55022 1998, Class A, Note Table of Contents Configuration Methods DHCP/BOOTP Getting Started Network Settings Configuring Serial Ports UDP Sockets Profile 132 Remote Access Slip Profile 179 Configuring Users Configuring Security Configuring I/O Interfaces Channels UDP Configuring Clustering Controlling the RPS, I/O Channels, System Administration Applications Appendix B SSL/TLS Ciphers Appendix E Setting Jumpers 361 Appendix G Utilities Appendix I Troubleshooting Index GlossaryDocumentation PrefaceAbout This Book Intended AudienceOnline Help Typeface ConventionsIntroduction About the IolanIolan Family Models Hardware Iolan FeaturesSoftware Ldap SecurityWhat’s Included ConnectivityIntroduction Iolan ComponentsDesktop Models Power Supply SpecificationsAvailable Accessories Power Over Ethernet PoE ModelsRack Mount Models DC Power RequirementsAC Power Requirements Getting to Know Your IolanSerial Activity PortPort End View Top ViewRack Mount Console Port/LED ViewSerial/Ethernet View Dedicated Console Port Rack Mount Models Console/Serial SwitchConsole Mode Serial ModePowering Up the Iolan Desktop/Rack Mount ModelsModels Secondary back-up Supply DC Power ModelsEarthing Wire Primary SupplyDisconnecting 48V Power Supplies from the Iolan Powering Up the Iolan Configuration Methods Chapter Configuration Methods Overview Configures an IP AddressRequires a Configured IP Address Easy Config Wizard DeviceManager Access PlatformsUnique Features Connecting to the Iolan Using DeviceManagerDeviceManager Using DeviceManager WebManager Iolan Connecting to the Iolan Using WebManagerUsing WebManager Command Line Interface Connecting to the Iolan Using the CLIThrough the Network Through the Serial Port Using the CLIConnecting to the Iolan Using the Menu MenuUsing the Menu Using DHCP/BOOTP Connecting to the Iolan Using DHCP/BOOTPTACACS+ Securid DHCP/BOOTP ParametersSnmp Connecting to the Iolan Using SnmpUsing the Snmp MIB Connecting to the Iolan to Use the IOLAN+ Interface Using the IOLAN+ InterfaceIOLAN+ Interface Changes to the IOLAN+ Interface REMOTE-ADMINOpt HEX Rlogin/Telnet Remote Access Systems Screen Name Wchiewsds2 Debug mode IP address IOLAN+ Interface Getting Started Easy Configuration WizardSetting Up the Network Using a Direct Serial Connection to Specify an IP Address Using a Direct Serial Connection to Enable BOOTP/DHCP For an IPv6 Network Using ARP-PingSetting Up the Serial Ports Setting Up the Serial Ports Setting Up Users Using DeviceManager WebManager DeviceManager Navigating DeviceManager/WebManagerEasyPort Web WebManagerStarting a New Session Using DeviceManager to Connect to the IolanAssigning a Temporary IP Address to a New Iolan Logging in to the Iolan Adding/Deleting Manual IOLANsLogging into the Iolan Using WebManager to Connect to the IolanConfiguration Files Creating a New Iolan Configuration in DeviceManagerOpening an Existing Configuration File Importing an Existing Configuration FileManaging the Iolan Network Settings Field Descriptions IP SettingsIPv4 Settings OverviewIPv6 Settings Custom IPv6 AutoconfigurationIPv6 DHCPv6Adding/Editing a Custom IPv6 Address Prefix Bits Range DefaultServer Name.Domain Prefix.Domain Name AdvancedConfiguration Default 100 msDefault 200 ms Default Disabled Advertise DHCPv6IP Filtering Data Options AdvancedHost Table FunctionalityDomain Name Adding/Editing a HostHost Name Fully QualifiedRoute List IPv4 Subnet Mask Default DefaultAdding/Editing Routes TypeDNS/WINS Editing/Adding DNS/WINS Servers RIPPassword Ethernet ModeDefault None AuthenticationKey Dynamic DNSOverview Functionality End TimeSystem Type Account SettingsDefault Dynamic User NameCipher Suite Field Descriptions Adding/Editing a Cipher Suite Validation Criteria Field Descriptions Common Name IPv6 TunnelsMode Default ManualAdding/Editing an IPv6 Tunnel Name102 Iolan SDS/SCS/STS User’s Guide, Version Functionality Serial PortsEditing a Serial Port Copying a Serial Port Resetting a Serial Port Serial Port ProfilesCommon Tabs Hardware Tab Field Descriptions Flow Control Default Enabled Enable Outbound Default FullDefault Auto Flow Control Enable InboundEmail Alert Tab Field Descriptions Packet Forwarding Tab Field Descriptions Packet Size Enable Trigger1Enable Trigger2 Packet DefinitionTrigger Default TriggerEOF1 Character EOF2 CharacterDefault Client SSL/TLS Settings Tab Field Descriptions114 Iolan SDS/SCS/STS User’s Guide, Version 115 116 Iolan SDS/SCS/STS User’s Guide, Version Protocol Default TelnetConsole Management Profile General Tab Field DescriptionsAdvanced Tab Field Descriptions Idle Timeout Enable MicrosoftAdministrator Support Default Disabled MultisessionsTruePort Profile ModemPhone Multiple Hosts System Default Enabled Host NameConnect to remote Connect toDefine a primary Host and backupAdding/Editing Additional TruePort Hosts Hosts to connect toBackup Host Adding/Editing a Multihost EntryPrimary Host Signals high Day Motd Default Disabled Enable TCPWhen Enable Data Session TimeoutLogging TCP Sockets Profile Connection Workstation/Server on the network Default EnabledReceived on the serial port Initiate ConnectionAdding/Editing Additional Hosts 129 Day Motd Default Disabled Enable Data 131 UDP Sockets Profile UDP port Direction Start IP AddressEnd IP Address Default 0 zero Terminal ProfileUDP Port VT320 specifically supporting VT320-7 Default DumbVT100 TVI925Is received Default Disabled ProtocolData Range 138 Iolan SDS/SCS/STS User’s Guide, Version Login Settings User Service SettingsErase Telnet SettingsInterrupt QuitRlogin Settings User is only prompted for a passwordEscape SSH Settings Arcfour Slip SettingsRSA authentication for the SSH session Authentication for the SSH sessionVJ Compression RoutingPPP Settings Default Chap IPv6 RemoteNone Remote User Default 3 seconds Remote PasswordConfigure Req TimeoutAddress/Control Default 1 minuteRoaming Callback Challenge IntervalPrinter Profile Client Iolan Tunnel Serial Tunneling ProfileSerial Server Tunnel SerialAct As Tunnel Client Default Disabled Host NameVirtual Modem Profile 154 Iolan SDS/SCS/STS User’s Guide, Version DCD DTR Signal Acts as RTS Signal Always On RTS Signal Acts as AT CommandResponse Delay Phone Number to Host Mapping Host IP Address Control Signal I/O ProfileVModem Phone Number Entry Phone NumberLatch Input Signal Field DescriptionsInvert Signal DescriptionSyslog Auto Clear ModeMode Default Disabled Manual ClearFailsafe Action Output Signal Field DescriptionsModbus Gateway Profile Advanced Slave Settings Button UID RangeDestination Slave IP MappingsDefault 30 ms Default 1000 msAdvanced Field Descriptions Modbus Slave IP Settings Field Descriptions UID End Adding/Editing Modbus Slave IP SettingsDefault Host UID StartData Options TCP or UDP Modbus Slave Advanced Settings Field DescriptionsDefault TCP Range Default 50 msPower Management Profile RPS Model Editing Power Management Plug Settings Field DescriptionsDefault RSP820 RPS NameData Options On, Off Remote Access PPP ProfileDefault State Default OffNegotiate IP IPv6 Global Authentication Tab Field Descriptions 174 Iolan SDS/SCS/STS User’s Guide, Version Dynamic DNS Field Descriptions Enable DynamicDNS for this Serial Default Disabled Port Host Account Settings176 Iolan SDS/SCS/STS User’s Guide, Version Enable Magic Configure RequestCompression Default Enabled Enable Protocol Enable VJDial In/Out MS Direct HostMS Direct Guest Remote Access Slip Profile 180 Iolan SDS/SCS/STS User’s Guide, Version 181 General Tab Field Description Custom Application ProfilePort Buffering Local Port BufferingKeyboard Buttons Hot Keys Direction Remote Port Buffers Field DefinitionsNFS Directory Enable PortData Default Disabled Enable Key Stroke NFS HostDeny Multiple Advanced Serial Settings TabSignals Process BreakSession Escape Default ~menuSerial Port Menu StringModems Tab Adding/Editing a ModemName Name of the modem Field Definitions TruePort Baud Rate Tab190 Iolan SDS/SCS/STS User’s Guide, Version Configuring Users User Settings General Tab Adding/Editing UsersDefault Normal Host IP Services TabService Default DSPromptIndentifier IPv6 InterfaceAdvanced Tab Default English Sessions Tab Connect Session 1, 2, 3Clustered Ports Serial Port Access TabSerial Port Access Allow Access to202 Iolan SDS/SCS/STS User’s Guide, Version Authentication Configuring SecurityMethod AuthenticationMethod Default Local Secondary PrimaryLocal General Field Descriptions RadiusNAS-Identifier Authenticator response Default Enabled RetryNAS-IP-Address Default Enabled Attributes Field DescriptionsKDC Port KerberosRealm KDC DomainEnable TLS BaseTLS Port Primary Host Default None Authentication Authorization Primary Host Secondary HostDefault None Authentication Authorization Port Default AuthenticationSecurID NIS Tracy Users Logging into the Iolan Using SSHDevice Server LynnUsers Passing Through the Iolan Using SSH Dir/Sil Lynn Sales ServerHR Server Keyboard Interactive Default Enabled PasswordField Descriptions Allow SSH-1Enable Verbose Output Default DisabledBreak String Button For a valid SSL/TLS connection 218 Iolan SDS/SCS/STS User’s Guide, Version Adding/Editing a Cipher 220 Iolan SDS/SCS/STS User’s Guide, Version VPN IPsec IKE Phase 1 ProposalsESP Phase 2 Proposals Authentication Algorithms-MD5, SHA1, SHA2Adding/Editing the IPsec Tunnel Local Device Default LeftSecret/Remote Validation CriteriaShared Secret Field Description Remote Validation Criteria Field Descriptions Allow L2TP/IPsec L2TP/IPsecExceptions Field Description Adding/Editing a VPN ExceptionSyslog Client ServicesTelnet Server TruePort FullSntp Client DeviceManagerWebManager SSH ServerKeys and Certificates Key Type 234 Iolan SDS/SCS/STS User’s Guide, Version Configuring I/O InterfacesChapter Access Functionality SettingsAdvanced Slave Modbus Settings Request Queuing Failsafe Timer Functionality Default 30 secondsFailsafe Action is triggered Enable UDP Broadcast of I/O Default Disabled StatusUDP Functionality UDP Entry UDP SettingsDefault Celsius Temperature FunctionalityAnalog I/O Analog ChannelsAnalog Monitoring Application A4D2Alarm Settings Default CurrentDigital Input Monitoring ApplicationDigital I/O Input Mode 247 Digital Output Output Mode Default SinkOutput Pulse Count Pulse ModeInactive Signal Width Active Signal Width DelayRelay Monitoring Application A4D2RelayRelay I/O Width Inactive SignalWarehouse Perle Iolan Reception Active SignalDigital I/O Extension Front DoorCurrent Alarm State 1 Byte z 0 = Not in alarm Message type 1 ByteInput number 1 Byte Enable I/O ExtensionInput TCP Port Local connection HostsSimultaneously Communicate to the Primary Host Temperature I/O Industrial Freezers TemperatureDefault RTD Basic Analog Alarm Settings Alarm SettingsAdvanced Analog Alarm Settings Clear ModeTrigger Type Clear UDP Broadcast Packet UDP Unicast FormatLength Enabled Analog SectionSection Channel Length Pin Serial Pin Signal SectionDigital/Relay Section Length ChannelModbus Serial Application Connected to the Network Modbus SlaveUDP Unicast Example Modbus Serial Application Connected to the Serial PortFunction Codes Modbus I/O AccessModbus RTU Or Ascii Application Power Digital Output Modbus TCP ApplicationCoil/Register Descriptions Input Registers Serial Port Coil/Register DescriptionsA4/T4 Registers Data Model A1/T1 A2/T2 A3/T3 A4/T4 Holding RegistersData Model D1/R1 D2/R2 Coils A4D2/A4R2 RegistersData Model Pin Coils Serial Pin SignalsD4/D2R2 Registers Data Model D3/R1 D4/R2 CoilsModbus Serial Application TruePort Power Digital Output TruePort I/OTruePort/Modbus Combination PC running Custom Application API TruePort API Over TruePort OnlyAccessing I/O Data Via TruePort SetupIntroduction Response Format Format of API CommandsGet Commands Command FormatSet Commands Example 2 Turn on the first and second relay on a D2R2 unit Successful Response FormatUnsuccessful Response Format Example 1 Turn on the first relay on a D2R2 unitSnmp Traps Error Codes280 Iolan SDS/SCS/STS User’s Guide, Version Configuring Clustering Chapter Clustering Slave ListAdvanced Button Adding Clustering Slaves Editing Clustering Slave Settings Advanced Clustering Slave OptionsPort Name Master TCP Port Slave TCP PortConfiguring the Option Card Option Card SettingsConfiguring the Iolan Modem Card Configuring a Wireless WAN Card Overview Field DescriptionsCard APN 288 Iolan SDS/SCS/STS User’s Guide, Version Configuring the System Chapter AlertsEmail Alerts Alerts Syslog Community ManagementContact LocationPrivacy Password Auth Algorithm Data Options MD5, SHA Default MD5Auth Password Default DESTime Algorithm Data Options MD5, SHA Default MD5Privacy Algorithm Data Options DES, AES Default DES Confirm Password TrapSntp Mode Network Time Tab Field DescriptionsSntp Version Time Zone/Summer Time Tab Field Descriptions Custom App/Plugin Login Tab Field Descriptions Bootup Files Tab Field Descriptions Display Motd WebManager/Easy Port Web Message of the Day Motd Tab Field DescriptionsTftp Host FilenameBaud Rate Default Flow ControlTftp Tab Field Descriptions Console Port Tab Field Descriptions302 Iolan SDS/SCS/STS User’s Guide, Version State Button Management profile settings Controlling the RPS, I/O Channels, and IPsec TunnelsRPS Control OK Button Closes the window Plug ControlSerial Port Power Control Power Plug StatusButton Serial port Deactivate Output Manually deactivates the channel output IPsec Tunnel Control 308 Iolan SDS/SCS/STS User’s Guide, Version Downloading Configuration Files System Administration ChapterManaging Configuration Files Saving Configuration FilesReboot Server Downloading Configuration Files to Multiple IOLANsUploading Configuration Files Specifying a Custom Factory Default ConfigurationLess than 3 seconds-Reboots the Iolan Calibrating Voltage Downloading Iolan FirmwareCalibrating I/O Calibrating Analog InputCalibrating RTD Calibrating Temperature InputCalibrating Analog Channels Calibrating ThermocoupleResetting Calibration Data Setting the IOLAN’s Date and Time Rebooting the IolanResetting the Iolan to Factory Defaults Resetting the SecurID Node Secret Language SupportLoading a Supplied Language Translation Guidance Software Upgrades and Language FilesCreating Terminal Definition Files Downloading Terminal DefinitionsFor example Resetting Configuration ParametersLost Admin Password Applications Configuring ModbusConfiguring a Master Gateway Configuring a Slave GatewayModbus Gateway Settings Modbus Master GatewayModbus Slave Gateway Master Gateway Serial EIA-232 Modbus Serial Port SettingsModbus Master Settings Modbus Slave UIDModbus Slave Settings Modbus Master Slave GatewaySerial Port EIA-422/485 Modbus Master Modbus Slave UID 172.16.0.0 Configuring PPP Dial On DemandRemote Printing Using LPD Setting Up PrintersRemote Printing Using Host-Based Print Handling Software Remote Printing Using RCPIOLAN-to-Host/Network Configuring a Virtual Private NetworkOr just 172.16.45.84 192.168.45.87 192.168.45.12 Network-to-Network172.16.45.99 Host-to-HostLeft External IP Address Right Gateway Router332 Iolan Device Server User’s Guide, Version VPN Client Initiate Communication Router Broadband Right VPN Client-to-Network334 Iolan Device Server User’s Guide, Version Supported Radius Parameters Radius and TACACS+ Appendix aPPP User level. See Perle Radius Dictionary Example Accounting Message Radius Parameter Iolan Parameter Mapped Radius Parameters to Iolan ParametersPerle Radius Dictionary Example Value TACACS+ Accessing the Iolan Through a Serial Port UsersName Values Description Slip Accessing the Iolan from the Network Users Accessing the Iolan from the Network User Example Settings Valid SSL/TLS Ciphers SSL/TLS CiphersDES-CBC-MD5 Virtual Modem Initialization Commands CommandsAT&Sn AT&RnAT&Cn Pinouts and Cabling Diagrams Serial PinoutsDB25 Male DB25 Female RJ45 DB9 Male Serial Only RJ45 SCS48C/SCS32C/SCS16C/SCS8CDB9 Male I/O Power Over Ethernet PinoutsDB25 Female EIA-232 Cabling DiagramsTerminal DB25 Connector DB25 MaleRJ45 DB9 Male10-pin Pin Iolan RJ45 DCE Modem DB25 ConnectorRxD TxD DTR 20 DTR GND 360 Iolan SDS/SCS/STS User’s Guide, Version Port Iolan DB25 Male/Female Setting JumpersPort Iolan RJ45 Port Iolan RJ45 P Power Over EthernetPort Iolan SDS1M Modem Port Iolan DB9Port Iolan Port/Line # Line Termination 5V Output Input Volt Output Port Desktop IolanDigital I/O Module Analog Input Module 368 Iolan SDS/SCS/STS User’s Guide, Version Digital Input Dry Contact Wiring I/O DiagramsDigital I/O Digital Input Wet ContactDigital Output Source Digital Output SinkAnalog Input CurrentVoltage Thermocouple Temperature InputRTD 2-Wire RTD 3-WireNormally Closed Contact RTD 4-WireRelay Output Normally Open Contact374 Iolan SDS/SCS/STS User’s Guide, Version TruePort UtilitiesAPI I/O Access Over TruePort API Request FormatAPI Response Format Decoder Error Codes378 Iolan SDS/SCS/STS User’s Guide, Version Installing a Perle PCI Card AccessoriesInstalling a Perle PCI Card Accessories RJ45F to DB25M DTE Crossover Adapter Starter Kit Adapters/CableRJ45F to DB25M DCE Modem Adapter RJ45F DB25F RJ45F to DB25F DTE Crossover AdapterRJ45F to DB9M DTE Crossover Adapter RJ45F to DB9F DTE Crossover Adapter Sun/Cisco RJ45M Connector Cable for Rack Mount ModelsSCS48C/SCS32C/SCS16C/SCS8C Starter Kit Adapters/Cable GND DTR 20 DTR DSR RJ45F to DB25F DTE Crossover Adapter 390 Iolan SDS/SCS/STS User’s Guide, Version RJ45F Sun/Cisco Roll-Over Adapter for Rack Mount Models392 Iolan SDS/SCS/STS User’s Guide, Version Power/Ready LED on a rack mount model flashes red TroubleshootingHardware Troubleshooting Power/Ready LED stays red after a bootCommunication Issues DeviceManager ProblemsGeneral communication checks and practices are as follows Radius Authentication Problems Host ProblemsProblems with Terminals Login ProblemsYou observe Tftp errors when the Iolan boots, for example DHCP/BOOTP ProblemsCallback Problems Language ProblemsLong Reboot Cycle Modem ProblemsPPP Problems Printing ProblemsAn A4R2 model is starting/stopping Certificate did not match configurationModels Could not obtain peers certificateIPv6 Issues Making a Technical Support Query Contacting Technical SupportFeedback on this Manual Repair ProcedureGlossary RIP Routing PAP PasswordAuthentication Protocol Radius Remote Authentication Dial Users Services Reverse ConnectionAPI IndexLdap Radius Index W