5-40 C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUALPRODUCT SETUP CHAPTER 5: SETTINGS5The Distributed Network Protocol (DNP) allows for the optimization of control and data acquisition between the equipmentin the substation and the central control center. The protocol is scalable; that is, it is designed to be compatible with thelatest high speed LAN technology yet still be implemented over slower speed serial links.The DNP improves upon many master-slave protocols by improving overall communication performance requirementsand provides time-stamping with millisecond accuracy.The C60 supports the Distributed Network Protocol (DNP) version 3.0. DNP is enabled when the SETTINGS PRODUCT SETUP COMMUNICATIONS PROTOCOL setting is set to DNP 3.0. The C60 can be used as a DNP slave device connected tomultiple DNP masters (usually an RTU or a SCADA master station). Since the C60 maintains two sets of DNP data changebuffers and connection information, two DNP masters can actively communicate with the C60 at one time.See the UR Family Communications Guide for more information on DNP.The DNP Channels sub-menu is shown.SETTINGS PRODUCT SETUP COMMUNICATIONS DNP PROTOCOL DNP CHANNELSThe DNP CHANNEL 1 PORT and DNP CHANNEL 2 PORT settings select the communications port assigned to the DNP protocolfor each channel. Once DNP is assigned to a serial port, DNP is the only protocol running on that port; Modbus or IEC60870-5-103 are disabled. If DNP is assigned to RS485, the protocol must be set to DNP on the serial port configuration aswell, for the change to take effect. When the DNP CHANNEL 1(2) PORT setting is set to “Network - TCP,” the channel 1(2) DNPprotocol can be used over TCP/IP on the Ethernet ports. When this value is set to “Network - UDP,” the DNP protocol can beused over UDP/IP on channel 1 only.Changes to these port settings take effect when power has been cycled to the relay. DNP OBJECT 2DEFAULT VARIATION: 2Range: 1, 2, 3 DNP OBJECT 20DEFAULT VARIATION: 1Range: 1, 2, 5, 6 DNP OBJECT 21DEFAULT VARIATION: 1Range: 1, 2, 9, 10 DNP OBJECT 22DEFAULT VARIATION: 1Range: 1, 2, 5, 6 DNP OBJECT 23DEFAULT VARIATION: 1Range: 1, 2, 5, 6 DNP OBJECT 30DEFAULT VARIATION: 1Range: 1, 2, 3, 4, 5 DNP OBJECT 32DEFAULT VARIATION: 1Range: 1, 2, 3, 4, 5, 7 DNP NUMBER OF PAIREDCONTROL POINTS: 0Range: 0 to 32 in steps of 1 DNP TCP CONNECTIONTIMEOUT: 120 sRange: 10 to 7200 s in steps of 1 DNP EVENT TIME BASE:LOCALRange: UTC, LOCAL DNP CHANNELS DNP CHANNEL 1 PORT:NONERange: NONE, COM1 - RS485, COM2 - RS485, FRONTPANEL - RS232, NETWORK - TCP, NETWORK - UDP DNP CHANNEL 2 PORT:NONERange: NONE, COM1 - RS485, COM2 - RS485, FRONTPANEL - RS232, NETWORK - TCPDo not set more than one protocol to the same TCP/UDP port number, as this results in unreliable operation ofthose protocols.
