Siemens OSM, ESM technical specifications Redundant Coupling of Network Segments

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Network Topologies with OSM/ESM

3.3Redundant Coupling of Network Segments

The standby-sync port of an OSM/ESM with 8 ports allows the connection of two Industrial Ethernet OSMs or ESMs with one operating as standby master (DIP switch "Stby off") and the other as standby slave (DIP switch "Stby on"). With this mode, pairs of OSMs/ESMs can be used for redundant coupling of OSM/ESM or OLM rings.

With network management, the OSM/ESM can also be configured so that several rings or networks can be interconnected at the same time with two OSMs/ESMs (see OSM/ESM Network Management, User Manual /1/).

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C79000-Z8976-C068-10

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Contents Simatic NET Copyright Siemens AG 2000/02, All rights reserved Classification of Safety-Related NoticesTrademarks Safety Instructions Regarding your ProductQualified Personnel Correct Usage of Hardware ProductsPrior to Startup Correct Usage of Software ProductsPreface Installing an OSM/ESMPurpose of the Operating Instructions PackageFurther Documentation Validity of the Operating InstructionsFinding Information Audience Guide to the ManualPersonnel Qualification Requirements Standards and ApprovalsContents Introduction Introduction OSM ITP62 Overview of the Variants of the OSM/ESMPossible Attachments Properties of the OSM ITP62 OSM ITP62-LD OSM ITP62-LDITP62-LD Properties of the OSM ITP62-LDOSM ITP53 OSM ITP53Properties of the OSM ITP53 ESM ITP80 ESM ITP80Properties of the ESM ITP80 OSM TP62 OSM TP62Properties of the OSM TP62 ESM TP80 ESM TP80Properties of the ESM TP80 OSM BC08 OSM BC08Properties of the OSM BC08 OSM TP22 OSM TP22Properties of the OSM TP22 ESM TP40 ESM TP40Properties of the ESM TP40 Limitation of Errors to the Network Segment Affected Simple Network Configuration and Network ExpansionFunctions Increased Network PerformanceDeleting Addresses Setting the Transmission Rate, AutonegotiationPackets with the Vlan Priority Tag Functions Network Topologies with OSM/ESM Bus with OSM Bus Structure Bus with ESMs Redundant Ring Structure with OSMs Redundant Ring StructureESM in RM mode Redundant Coupling of Network Segments OSM/ESM Simultaneous Standby and Redundancy Manager Operation Port Assignment in the Standby ModeReplacing the Standby Master During Operation OSM RM mode Compatibility Compatibility of OSM Version 2/ESM with OSM/ORM VersionRing with OSM Version 2 as Redundancy Manager Redundant Coupling of Rings Standby Master Slave OSM Coupling Network Segments OSM RM modeInterfaces, Displays and Operator Controls ITP Ports ITP/TP PortsTP Ports Properties of the TP/ITP Ports Autonegotiation ModeLink Control Auto Polarity ExchangeInterfaces, Displays and Operator Controls FO Ports Standby-Sync Port Pinout Serial InterfaceTerminal Block for the Power Supply and Signaling Contact Signaling Contact Power SupplyRM Mode additional OSM/ESM in the Standby Mode Input voltage must not exceed +30V DC or fall below -30V DC Digital InputsDisplays and Operator Controls Fault red LEDLED Display Status Stby Standby green LEDRM Redundancy Manager green LED Display mode Meaning LED PowerFault Mask Display Port LEDsFull duplex Port LED DIP Switches Two-Pin DIP SwitchSelect/Set Button Installation, Commissioning, Cleaning Maintenance Unpacking, Checking the Consignment Do not install damaged componentsPreparations InstallationStandard Rail Mounting Installing the OSM on a DIN Standard RailRemoving from the Standard Rail Removing from a Standard RailInstallation on the S7-300 Rail Installation on a Simatic S7-300 RailInstallation in the 19 Cubicle Installation in Pairs in the 19 CubicleWall Mounting Wall MountingWall Mounting Cleaning Maintenance Specifying the keyword OSM Firmware Firmware UpdateFirmware Update Firmware Update Firmware Update Firmware Update Ports Technical SpecificationsTechnical Specifications Permitted Cable Lengths Switching Properties of OSM/ESMCascading Depth Permitted Ambient Conditions/EMC Only horizontal installationMechanical Design PermittedConsignment / Order Numbers Accessories Product name Standards and ApprovalsCE Mark Approval for Australia Area of ApplicationUL Approval CSA CertificationFM Approval Adherence to Installation Instructions Glossary Fault Mask Filtering ITP PortLink Control LatencyTP Port Industrial Ethernet OSM/ESM C79000-Z8976-C068-10 Http//www4.ad.siemens.de/view/cs/de/8677203 ReferencesIndustrial Ethernet OSM/ESM C79000-Z8976-C068-10 Ambient conditions, permitted IndexIndex