Table 3. Analog input configurationAnalog input configuration CT (1/5 A) CT sensitive (0.1/0.5 A) VT RTD/mAinputsmA outputsAA 4 1 4 - -AB 7 - 3 - -AC 8 - 2 - -BA 4 1 4 8 4BB 7 - 3 8 4BC 8 - 2 8 4Table 4. Binary input/output options for 4U variantsBinary I/O options Binary input configuration BI BODefault AA 14 9With one optional binary I/O module AB 23 18With two optional binary I/O modules1) AC 32 271) Not possible if RTD/mA module is selected.Table 5. Binary input/output options for 6U variantsBinary I/O options Binary input configuration BI BODefault AA 14 9With one optional binary I/O module AB 23 18With two optional binary I/O modules AC 32 27With three optional binary I/O modules AD 41 36With four optional binary I/O modules1) AE 50 451) Not possible if RTD/mA module is selected.17. CommunicationThe protection relay supports the IEC 61850 substationautomation standard including horizontal GOOSEcommunication as well as the well-established DNP3 (TCP/IP)and IEC 60870-5-103 protocols. All operational informationand controls are available through these protocols.Disturbance files are accessed using the IEC 61850 or IEC60870-5-103 protocols. Disturbance files are also available toany Ethernet based application in the standard COMTRADEformat. The protection relay can send binary signals to otherprotection relays (so called horizontal communication) using theIEC 61850-8-1 GOOSE (Generic Object Oriented SubstationEvent) profile. Binary GOOSE messaging can, for example, beemployed for protection and interlocking-based protectionschemes. The protection relay meets the GOOSE performancerequirements for tripping applications in distributionsubstations, as defined by the IEC 61850 standard. Further, theprotection relay supports the sending and receiving of analogvalues using GOOSE messaging. Analog GOOSE messagingenables fast transfer of analog measurement values over thestation bus, thus facilitating for example sharing of RTD inputvalues, such as surrounding temperature values, to other relayapplications. The protection relay interoperates with other IEC61850 compliant devices, tools and systems andsimultaneously reports events to five different clients on the IEC61850 station bus. For a system using DNP3 over TCP/IP,events can be sent to four different masters. For systems usingIEC 60870-5-103, the protection relay can be connected to onemaster in a station bus with star-topology.All communication connectors, except for the front portconnector, are placed on integrated communication modules.The protection relay is connected to Ethernet-basedcommunication systems via the RJ-45 connector(10/100BASE-TX) or the fibre-optic multimode LC connector(100BASE-FX).Generator Protection and Control 1MRS757583 CREG630Product version: 1.3ABB 15