Schneider Electric 890USE19600 Version 1.0 manual Udp, Varistor, Suppress transient voltage surges

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Glossary

U

UDP

user datagram protocol. A connectionless mode protocol in which messages are delivered in a datagram to a destination computer. The UDP protocol is typically bundled with the Internet Protocol (UPD/IP).

V

varistor

A two-electrode semiconductor device with a voltage-dependant nonlinear

 

resistance that drops markedly as the applied voltage is increased. It is used to

 

suppress transient voltage surges.

voltage group

A grouping of Advantys STB I/O modules, all with the same voltage requirement,

 

installed directly to the right of the appropriate power distribution module (PDM) and

 

separated from modules with different voltage requirements. Never mix modules

 

with different voltage requirements in the same voltage group.

 

 

W

watchdog timer A timer that monitors a cyclical process and is cleared at the conclusion of each cycle. If the watchdog runs past its programmed time period, it generates a fault.

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890USE19600 April 2004

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Contents Advantys STB 890USE19600 VersionPage Table of Contents Application Example Important Information Safety InformationProcedure Safety Information About the Book At a GlanceValidity Note Construed as a commitment by Schneider ElectricAbout the Book Topic IntroductionSummary What’s in this Chapter? What Is Advantys STB? IntroductionIsland Bus I/O BasicWhat Is a Network Interface Module? Structural Components of a simplified Interbus network are shown below About InterbusOutputs in 4 ms Physical Layer TopologyNode AddressingInput and output data in the masters buffer On the shift register ring on which data is circulatedIntroduction Product specifications of the basic Interbus NIM STB NIB Basic NIM ModuleWhat’s in this Chapter?External Features of the STB NIB 1010 NIM Features Called out in the illustration belowFeature Function HardwareSpace reserved for the network connectors NIM housing STB NIB 1010 Fieldbus Interface SummaryFieldbus Port ConnectionsConnectors InterbusNetworking CableLED Physical Description OverviewGeneral IndicationsNIM Activity LEDsPower Supply Interface Island is the two-receptacle connector illustrated belowPhysical DescriptionUse either RightLogic Power Improper Galvanic IsolationCharacteristics Power SupplyRequirements ExternalSTB NIB 1010 Module Specifications Technical SpecificationsConfiguring the Island Bus Basic island configuration Auto-AddressingAbout the Island Bus AddressAn Example Module Physical Location Island Bus AddressAbout Auto Auto-ConfigurationConfiguration Been successfully configured at least once RST ButtonHinged cover StageIsland Fallback Scenarios FallbackScenarios HeartbeatFieldbus Communications Support Introduction What’s in this Chapter?Interbus ID Code LowHigh Bytes Data TypeData Length Data Exchange Data and StatusObjects ObjectsInternal Process ImageWord BoundariesOutput Data Input DataExchange Contains the NIM statusApplication Example With an Advantys STB NIB 1010 basic NIMSample Island Assembly AssemblyFieldbus network Sample IslandI/O modules have the following island bus addresses Model Module Type Island Bus AddressNetwork Configuration Considerations For use with an Advantys STB islandConnection Devices on an Interbus networkBefore You BeginSyCon ConsiderationsUsing SyCon to Configure an STB Island on Interbus With SyConStage Description Step Action CommentTo add the NIM to the network configuration ConfiguringAdd the NIM WorkspaceCreate an EDS InstructionsSaving CMD Using CMD to Configure an STB Island on InterbusIsland slave to your configuration using CMD Add AddingIsland Slave DownloadingApplication Example Glossary ARP BOSCan COBComs CRCDhcp DINEDS EIAEMC EMIEOS FedpFsdp GSDBase ScanningIEC IEC type 1 inputIndustrial I/O Input filteringInput polarity Input responseEnergized and open when the coil is energized Energized and closed when the coil is energizedContact NemaNIM NMTPLC PDMPDO Process I/O ProducerConsumer model Profibus DPRTD SAPScada SDOSmmps SnmpTFE StdpTCP UDP VaristorSuppress transient voltage surges Voltage groupIndex Heartbeat message, 34 housing ID code InterbusIndex