5-26 L60 Line Phase Comparison System GE Multilin5.2 PRODUCT SETUP 5 SETTINGS5The PRT1 (2, 3) GOOSE ENABLED setting provides the ability to disable/enable GOOSE transmission from the port.PRT2 REDUNDANCY is available when the hardware has multiple ports (modules T, U, and V). It determines if ports 2 and 3operate in redundant or independent mode. In non-redundant mode, port 2 and 3 operate independently with their ownMAC and IP address. In redundant mode, port 2 and 3 use the port 2 MAC and IP address, port 3 is in standby mode andmonitors its link to the Multilink switch, and when port 2 detects a problem with the link then communication switches to port3 until the link returns. Reboot is required when using the redundancy option.The IP addresses are used with the DNP, Modbus/TCP, IEC 61580, IEC 60870-5-104, TFTP, and HTTP protocols. Eachnetwork protocol has a setting for the TCP/UDP port number. These settings are used only in advanced network configura-tions and should normally be left at their default values, but may be changed if required (for example, to allow access tomultiple UR-series relays behind a router). By setting a different TCP/UDP PORT NUMBER for a given protocol on each UR-series relay, the router can map the relays to the same external IP address. The client software (EnerVista UR Setup, forexample) must be configured to use the correct port number if these settings are used.When any TCP/UDP port number or any user map setting (when used with DNP) is changed, it becomes activewhen power to the relay has been cycled (off-on).e) FAR-END FAULT INDICATION (FEFI)Since 100BASE-FX does not support Auto-Negotiation, a Far-End Fault Indication (FEFI) feature is included in UR 7 thatallows for detection of link failures.The purpose of the Far-End Fault feature is to allow the stations on both ends of a pair of fibers to be informed when thereis a problem with one of the fibers. Without the Far-End Fault feature, it is impossible for a fiber interface to detect a prob-lem that affects only its transmit fiber.When the Far-End Fault feature is supported, a loss of receive signal (link) causes the transmitter to generate a Far-EndFault pattern in order to inform the device at the far end of the fiber pair that a fault has occurred.When the local receiver again detects a signal, the local transmitter automatically returns to normal operation.If a Far-End Fault pattern is received by a fiber interface that supports the Far-End Fault feature and it is enabled, it reactsby dropping the link as if there were no signal at all.If the receiving interface does not support the Far-End Fault feature or has it disabled, an incoming Far-End Fault pattern isignored.It is strongly recommended to have switches used at substation automation support the Far-End Fault feature, especiallywhen UR 7 redundancy Failover is selected for redundancy purpose.f) MODBUS PROTOCOLPATH: SETTINGS PRODUCT SETUP COMMUNICATIONS MODBUS PROTOCOL NETWORK PORT 3PRT3 IP ADDRESS:127.0.0.1Range: Standard IPV4 address formatMESSAGE PRT3 SUBNET IP MASK:255.0.0.0Range: Standard IPV4 address formatMESSAGE PRT3 GWY IP ADDRESS:0.0.0.0Range: Standard IPV4 address formatMESSAGE PRT3 GOOSE ENABLED:EnabledRange: Enabled, Disabled MODBUS PROTOCOLMODBUS SLAVEADDRESS: 254Range: 0 to 254 in steps of 1MESSAGE MODBUS TCP PORTNUMBER: 502Range: 0 to 65535 in steps of 1NOTE
