Emerson 400501-08 manual DeviceNet Messaging and Communications, Master/Slave Relationship

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Introduction

9.Operation with off-the-shelf power supplies

10.Power taps that allow the connection of several power supplies from multiple vendors that comply with DeviceNet standards

11.Built-in overload protection

12.Power available along the bus: both signal and power lines contained in the trunk line

DeviceNet Messaging and Communications

Master/Slave Relationship

ODVA defines a DeviceNet Master as:

The device that gathers and distributes I/O data for the process controller. A Master contains a scan list it uses to poll slave devices.

ODVA defines a DeviceNet Slave as:

The slave returns I/O data to its Master when it is polled. With respect to the network, the Slave is a Group 2 Server or a Group 2 Only Server.

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Contents Reference Manual Page Epsilon Ei DeviceNet Drive Reference Manual Page Technical Support 952 995-8033 or 800 Customer Support952 Website and EmailApplication Engineering 952 995-8000 or 800 Training Services 952 995-8000 or 800Customer Service Sales 952 995-8000 or 800 Document ConventionsThis Represents Qualified Person Safety InstructionsReference Materials General WarningEnclosure Safety ConsiderationsSafety Precautions Setup, Commissioning and MaintenanceGeneral warning Safety of MachineryTable of Contents Appendix Glossary Index Network Configuration Quick StartExplicit Messaging Quick Start Drive ParametersPurpose IntroductionDeviceNet Communications Link DeviceNet OverviewMaster/Slave Relationship DeviceNet Messaging and CommunicationsMaster/Slave Relationship Cables InstallationMechanical Installation DeviceNet Hardware ComponentsPhysical Connections to the DeviceNet Network Electrical InstallationConnectors Power Supply RequirementsInstallation Epsilon Ei DeviceNet Drive Reference Manual Polled I/O Connections Implicit Messaging Connection TypesSoftware Interface DeviceNet TabIndex Select Predefined Index Sel Predef Master Receive and Master Send Assembly Block SelectionsMacID Baud RateIndex Select User Defined Index Sel UserDef Configuring the DeviceNet NetworkPosition Control Index TypeCCW No OperationCode Description Input Word Select Data PointerOutput Word Select Data Pointer Response Assembly Codes Command Assembly CodeConfiguring the DeviceNet Network Ei-DN Input Processing Logic Host Mode EnableDeviceNet Online Tab InformationCounters Module Status LED StatusEstablished Connections Network Status LEDDeviceNet Bits Input and Output TabFaults and Diagnostic Display DN Allocation Choice Connections Established DN Allocation Master MacIDEi-DN Modbus Address DN Bus Off Interrupt DN Bus Off Fault CountDN Baud Rate DN Bus Off CounterDN FAB Master Receive Block DN Comm Time-out Fault CountDN Duplicate MacID Fault Count DN Device TypeDN Host Mode DN FAB Master Send BlockDN MacID DN Master Receive Bitmap DN Master Receive FAB TypeDN Master Send Bitmap DN Module Status DN Master Send FAB TypeDN Receive Counter DN Status Major Recoverable FaultDN Status Major Unrecoverable Fault DN Network StatusDN Vendor ID DN Status Minor Recoverable FaultDN Status Minor Unrecoverable Fault DN Transmit CounterAccessing the EDS File Hardware InterfaceModule Status LED Setting the Baud Rate and MacID Externally One Touch Network Status LEDViewing and Changing the Baud Rate and MacID Display Value Baud Epsilon Ei DeviceNet Drive Reference Manual Equipment Network Configuration Quick StartExample #1 Index SelPredef Polled I/O SetupNetwork Configuration Quick Start Example #2 Index Sel Userdef DN Setup / Index Sel Userdef Inputs Tab Outputs Tab Example #3 Index Type DN Setup / Index Type Output Word Select Input Word Select Example #4 Position Control Dn Setup / Position Control Network Configuration Quick Start RS Networx Configuration Master ConfigurationScanlist Tab Input Tab Output Tab Epsilon Ei DeviceNet Drive Reference Manual Explicit Messaging Quick Start How to Send Explicit MessagesExecute Description of N10 Integer File Explicit Messaging ExamplesExplanation of PLC Program ExamplesExample 1 Read Index 0 Velocity Integer File N11 High Byte Low Byte Example 2 Write Index 1 VelocityInterger File N10 High Byte Low Byte Explicit Messaging Quick Start Epsilon Ei DeviceNet Drive Reference Manual DeviceNet Data Type Drive ParametersBy Name NameUdint Drive Parameters ProductID.Option1IDFunctionModule By DeviceNet Class 0x01 DeviceNet.DeviceNetIdentityObject.DeviceType 104 0x68 See Note 0x09 Index.Instance#.RegistrationOffset 109 0x6D 0x01 0x04 Position.FollowingError 0x01 0x0D Status.TorqueFeedback Epsilon Ei DeviceNet Drive Reference Manual Index Select Predefined AppendixIndex Select User Defined Master Receive Assembly Block Index Sel User DefIndex Type CCW Position ControlGlossary Explicit Messaging Connections Drop LineEpsilon Drive Explicit MessageLink Producer Object One touch ConfigurationConnections Link Consumer ObjectUcmm Index Epsilon Ei DeviceNet Drive Reference Manual Index Epsilon Ei DeviceNet Drive Reference Manual