Ovation Ethernet Link Controller Module

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OvationEthernet Link ControllerModule

Data Sheet

Features:

Provides native Ethernet connectivitycapability at the I/O level

Enables faster, more efficient integration ofrobust data from third-party devices

Dedicated processor increases the numberand type of supported devices

Easily add new communication protocolswithout a full system upgrade

Simplifies link configuration

Provides full communication redundancy

Offers hot-swapping capability to streamline

maintenance activities

Provides bidirectional data throughput

CE Mark certified

Offers an extra measure of informationisolation and security

RS232 serial interface for third-party devices

Ethernet Link Controller Module

Emerson Process Management Power & Water

Solutions Ovation Ethernet Link Controller(ELC) is a flexible, redundant I/O module thatoffers I/O-level Ethernet interface capability thatis tightly coupled with the Ovation controlsystem. This translates into a number of benefitsfor power, wastewater, and water utilities thatutilize Ovation technology. The expandedcapabilities of the Ovation ELC give plantoperators additional insight for making betterinformed decisions to optimize plant availability,efficiency, and reliability.

The dedicated ARM processor on the module

significantly expands the number and types ofthird-party devices and systems that can besupported by an Ovation Controller, as well asthe increasingly sophisticated data they provide.

The module, which offloads all communicationsprotocol processing previously handled by the

controller, also offers faster access to the datafrom these devices and more efficientlyintegrates the information into the Ovationsystem.

The ELC uses a standard Ovation I/O base andutilizes the built-in bus communications to theOvation Controller. An RJ45 port interfaces themodule to the third-party device or system. TheOvation Controller directly reads the modulesmemory area allowing transferred data from athird-party device to be included in the Ovationsystem database. With the module, dataexchanged with other devices can be easilyapplied to Ovation control schemes anddisplayed in graphics.

The ELC includes diagnostics to detect adverseconditions. The state of the module can bedetermined by reading the diagnostic LEDs

Emerson Process Management Power & Water Solutions, Inc. - 1 -

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Ethernet Link Controller ModuleData Sheet

located on the front, or at any OvationWorkstation connected to the system.The ELC can send point information to theOvation Controller using either the network orthe backplane bus.

Configuration

Standard Ovation Developer Studio engineeringtools are used to configure the ELC. The basesoftware that contains the specific infrastructurefor the configuration of the ELC is loaded intothe Ovation system with an application protocolpackage that includes configuration details forthe specific communication protocol beingapplied.

The ELC base software and application protocolpackages are independent from the Ovation

version, and new communications protocols canbe added at any time without having to upgradethe Ovation system. The tools plug-inenvironment provides significantly easier andfaster link configuration.

Redundancy

The ELC supports module as well as portredundancy. Module redundancy is configuredwith the Ovation Developer Studio and allowsone ELC to perform as the primary module,while a second module is the backup. Wheneverfailure of the primary module is detected, thebackup module assumes control.

Port redundancy is configured at the line levelwithin the protocol configuration tool. A primaryport and an optional backup port may bedefined. If the primary port fails, communicationcan proceed through the backup port.

Ethernet Link Controller Protocols

Application protocol packages can be loadedonto the ELC, extending the Ovation systembeyond traditional plant boundaries. The

protocol can be easily deployed on diverseOvation platforms in either the ELC itself or,for example, the Ovation Supervisory Controland Data Acquisition (SCADA) server, whichsupports a wide range of protocols and physicalcommunications layers, including dial-up, leasedlines and wireless.

The local processing power and memory of theELC make it ideal for protocol handlingapplications including interfacing with varioussystems such as:

Turbine supervisory vibration

Certified burner management PLC, safety, electrical, SCADA Chemical analyzer Process analyzer Substation IEDs

Support is provided for some individualstandards as defined in the protocolsconformance documents for basic functionsincluding reading and writing data structures,status, time, diagnostics, registers, bits, orblocks of registers. Also included is support forclient/server, publisher/subscriber, master/slave,

poll/response, report by exception, as well asother mechanisms as required by the protocols.

Standard application protocol packages that areavailable for the ELC include:

IEC 61850 MMS Protocol Client

Modbus/TCP Master/Slave

DNP3 Server/Client both

IEC 60870-5-101 Client and Server viaSerial (supports both balanced andunbalanced communications)

IEC 60870-5-104 Client and Server viaEthernet (supports both balanced &unbalanced communication)

GE GSM Client (GE Mark V- VI-VIeturbine control systems)

Turbine Control Interface Client Protocol Allen Bradley DF1 Client Protocol Allen Bradley EIP protocol (PCCC and

Native line both) Allen Bradley CSP Client protocol

Sequence of Events

Millisecond time stamps can be a useful featurewhen an event/alarm happens quickly or in a

chain reaction. The time stamp is crucial indetermining what happened first in a sequenceof events (SOE). The ELC can generate SOEpoints that are time stamped by the ELC if theprotocol used supports time stamping (such asDNP3). The millisecond time stamp provided by


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the ELC module can be used for SOE and alarmpurposes.

Ethernet Link Contro llerCommunication Media

Two types of media can be used for ELCCommunication

TCP Ethernet Port Digi Terminal Server Port

The TCP Ethernet port type is used tocommunicate directly with devices using one ofthe many Ethernet protocols that are supportedby the ELC. In this case, the ELC wouldcommunicate with the third-party device usingone of the Ethernet protocols that are supportedby the ELC, and the third-party device wouldcommunicate with the end device using RS-232/422/485. The third-party device wouldhandle the translation of the protocol betweenEthernet and Serial.

The Digi Terminal Server port type can be usedwhen the ELC needs to communicate with adevice using RS-232/422/485.

Ethernet Link Contro llerCommunication Lines

There are two basic types of communicationslines:

Master line (also called the Client or

Controlling line) Slave line (also called the Server or

Controlled line)

A master line initiates communication with slaveRTU. In this scenario, the ELC is configured tobe the master and its RTUs are the slaves.

A slave line accepts requests from a masterdevice. In this scenario, a device is configured tobe the master and thus initiates requests to theslave ELC module.

Physical Interfaces

Two types of physical interfaces are available tocommunicate with third-party devices.

RJ45 Port: TCP/IP Interface RS232 Terminals: Serial Interface

Cybersecurity

The ELC also has important cybersecurityimplications for users. The North AmericanElectric Reliability Corporations (NERC)Standards CIP-002 through CIP-009 provide acybersecurity framework for the identificationand protection of Critical Cyber Assets tosupport reliable operation of the Bulk ElectricSystem. As part of complying with thesestandards, power generators need to define theirsecurity perimeter.

The Ovation Controller communicates with theELC over the Ovation I/O bus using a non-routable protocol. By using the Ovation I/O bus,the security perimeter stops at the module anddoes not extend to remote devices, therebyproviding an extra measure of informationisolation and security for power generators. Forapplications that require large data throughput,the option exists to use Ethernet to allowcommunications between the Ovation Controllerand the ELC using routable protocols.


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Ethernet Link Contro ller Specifications

The following table includes module-specific specifications. Additionally, as part of Ovation, the module

adheres to the common industry standards used by the overall system.


Item Specification DescriptionGeneralModuleInformation

ARM9 processor 32Mb RAM 32Mb flash

S/W EnvironmentInformation

VxWorks V6.x

Appl ications Por ts One RJ45 100BaseT Ethernet ports , RS232 port

Protocol SpecificInformation

Specific protocol implementation packages are available. Time and SOE synchronizationcapability at Ethernet Link Controller

Performance Dependent on protocol package, data quantity, and OEM system capabilityRedundancy Redundancy support using two modules

Capacity Maximum 25 RTU/third-party devices can communicate with Single ELC on TCP/IPEthernet.Points per ELC module are dependent on link design. Capacity for the Ethernetcommunication between the Ovation controller and ELC is up to 20000 points whenusing Ethernet between them. Each ELC to controller interface can supports up to 2048points when using the Local I/O bus.

Controller Support Each controller supports up to 18 Ovation bus or ELC modules in total, in anycombination within its I/O systems. If these are all ELC modules, this would represent atotal of 18 Ethernet ports. The use of any other bus or ELC modules would decreasethese quantities proportionately.

System Support Ovation local I/O system Ovation remote I/O system

(Future Implementation)

ELC configuration capability Time synchronization capability with SOE with GPS derived NTP time distribution

Power 70mA typ, 85mA max @ 24VDC

DiagnosticsMicrocontrollerWatchdog timer

168 milliseconds

I/O bus WatchdogTimer

1.6 seconds nominal. 1.1 sec min, 2.1 sec max.

LED - P (green) Power OK

LED - C (green) Module to Controller Communications OK

LED - E (red) External Fault

LED - I None

LED - ACT (green) Ethernet activity

LED - FDX (yellow) Full Duplex Ethernet communications

Electromagnetic CapabilityGeneral Note ELC is CE Mark compliant according to the test data provided in the following table and

when housed in an Ovation CE Mark cabinet

EN55011 Meets the requirements of the Competent Body for CE Mark approval

EN61000-4-2 Meets the requirements of the Competent Body for CE Mark approval Criteria B

EN61000-4-3 Meets the requirements of the Competent Body for CE Mark approval Criteria A

EN61000-4-4 Meets the requirements of the Competent Body for CE Mark approval Criteria B


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Item Specification DescriptionEN61000-4-5 Meets the requirements of the Competent Body for CE Mark approval Criteria B

EN61000-4-6 Meets the requirements of the Competent Body for CE Mark approval Criteria A

ANSI C37.90-11989,SWC

Meets the specification

SafetyEN 61010-1 Meets the requirements of the Competent Body for CE Mark approval

EnvironmentalTemperature 0C - 60C

Storage -40C - 85C

Humidity 0% to 95% RH, NC, max wet bulb 35C

Vibration IEC 68-2-6 0.15mm displacement from 10 to 57 Hz and 2Gs from 57 to 500 Hz when attached

to a properly mounted DIN rail

Shock IEC 68-2-27 15Gs for 11mS and sine wave

Alti tude (above sea

level)

Operational 300m to 3,000m

Storage: 300m to 12,000mPower Supply-Primary & Secondary

Nominal 24V, Range 21 to 25V DC. for both Primary & Secondary auctioneered onboard module

Appl ication Notes

Protocol Package Example

The IEC (International ElectrotechnicalCommission) 61850 protocol package hasemerged as a global standard for Substation

Automation (SA). Integrating data from electricaldevices used in generators, switchgear,transmission lines, transformers and substationsdrives more-informed decision making

throughout the organization.

A typical IEC 61850 protocol architecture isshown in Figure 1. This example depicts anelectrical substation system using a number ofIntelligent Electrical Devices (IED) for protectionand control that are connected together on anEthernet-based Station Bus.

Figure 1 - Typical IEC 61850 Structure

The main protocols for processed data transferused within this example are:

MMS for vertical communications with ahost system such as an Ovation system

GOOSE for inter IED communications SMV for sharing process data on

another Ethernet-based Process Bus

network

The ELC provides a physical connection pointon the host Ovation control system. The IEC61850 protocol application package providesbidirectional communication by converting theMMS data into Ovation data, andcommunicating Ovation commands and statusback to the third-party device.


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Documents

Ovation Ethernet Link Controller Module