Schneider Electric 890USE19600 Version 1.0 manual Logic Power, Improper Galvanic Isolation

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The STB NIB 1010 Basic NIM Module

Logic Power

Introduction

Logic power is a 5 VDC power signal on the island bus that the I/O modules require

 

for internal processing. The NIM has a built-in power supply that provides logic

 

power. The NIM sends the 5 V logic power signal across the island bus to support

 

the modules in the basic segment.

External Source

 

 

Input from an external 24 VDC power supply is needed as the source power for the

Power

NIM’s built-in power supply. The NIM’s built-in power supply converts the incoming

 

24 V to 5 V of logic power. The external supply must be rated safety extra low

 

voltage (SELV-rated).

 

 

 

 

 

CAUTION

 

 

 

 

 

IMPROPER GALVANIC ISOLATION

 

 

The power components are not galvanically isolated. They are intended

 

 

for use only in systems designed to provide SELV isolation between the

 

 

supply inputs or outputs and the load devices or system power bus. You

 

 

must use SELV-rated supplies to provide 24 VDC source power to the

 

 

island.

 

 

Failure to follow this precaution can result in injury or equipment

 

 

damage.

Logic Power

 

 

 

 

The figure below shows how the NIM’s integrated power supply generates logic

Flow

power and sends it across the basic segment:

5V

24 V

24 VDC

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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 Validity Note About the BookAt a Glance Construed as a commitment by Schneider ElectricAbout the Book Topic IntroductionSummary What’s in this Chapter? Island Bus I/O What Is Advantys STB?Introduction BasicWhat Is a Network Interface Module? Structural Components of a simplified Interbus network are shown below About InterbusOutputs in 4 ms Physical Layer TopologyInput and output data in the masters buffer NodeAddressing On the shift register ring on which data is circulatedIntroduction What’s in this Product specifications of the basic Interbus NIMSTB NIB Basic NIM Module Chapter?Feature Function External Features of the STB NIB 1010 NIMFeatures Called out in the illustration below HardwareSpace reserved for the network connectors NIM housing Fieldbus Port STB NIB 1010 Fieldbus InterfaceSummary ConnectionsNetworking ConnectorsInterbus CableGeneral LED Physical DescriptionOverview IndicationsNIM Activity LEDsPhysical Power Supply InterfaceIsland is the two-receptacle connector illustrated below DescriptionUse either RightLogic Power Improper Galvanic IsolationRequirements CharacteristicsPower Supply ExternalSTB NIB 1010 Module Specifications Technical SpecificationsConfiguring the Island Bus About the Island Basic island configurationAuto-Addressing Bus AddressAn Example Module Physical Location Island Bus AddressAbout Auto Auto-ConfigurationConfiguration Hinged cover Been successfully configured at least onceRST Button StageScenarios Island Fallback ScenariosFallback HeartbeatFieldbus Communications Support Introduction What’s in this Chapter?High Bytes Interbus ID CodeLow Data TypeData Length Objects Data ExchangeData and Status ObjectsWord InternalProcess Image BoundariesExchange Output DataInput Data Contains the NIM statusApplication Example With an Advantys STB NIB 1010 basic NIMFieldbus network Sample Island AssemblyAssembly Sample IslandI/O modules have the following island bus addresses Model Module Type Island Bus AddressConnection Network Configuration ConsiderationsFor use with an Advantys STB island Devices on an Interbus networkSyCon Before YouBegin ConsiderationsStage Description Using SyCon to Configure an STB Island on InterbusWith SyCon Step Action CommentAdd the NIM To add the NIM to the network configurationConfiguring WorkspaceCreate an EDS InstructionsSaving CMD Using CMD to Configure an STB Island on InterbusIsland slave to your configuration using CMD Island Slave AddAdding DownloadingApplication Example Glossary ARP BOSComs CanCOB CRCEDS DhcpDIN EIAEOS EMCEMI FedpFsdp GSDIEC BaseScanning IEC type 1 inputInput polarity Industrial I/OInput filtering Input responseContact Energized and open when the coil is energizedEnergized and closed when the coil is energized NemaNIM NMTPLC PDMPDO Consumer model Process I/OProducer Profibus DPScada RTDSAP SDOSmmps SnmpTFE StdpTCP Suppress transient voltage surges UDPVaristor Voltage groupIndex Heartbeat message, 34 housing ID code InterbusIndex