GE Multilin B30 Bus Differential System 5-195 SETTINGS 5.2 PRODUCT SETUP5The 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, the Modbus protocol is disabled on that port. Note that COM1 canbe used only in non-Ethernet UR relays. When this setting is set to “Network - TCP”, the DNP protocol can be used overTCP/IP on channels 1 or 2. When this value is set to “Network - UDP”, the DNP protocol can be used over UDP/IP on chan-nel 1 only. Refer to Appendix E for additional information on the DNP protocol.Changes to the DNP CHANNEL 1 PORT and DNP CHANNEL 2 PORT settings take effect after power has been cycled tothe relay.Do not set more than one protocol to the same TCP/UDP port number, as this results in unreliable operation ofthose protocols.The DNP ADDRESS setting is the DNP slave address. This number identifies the B30 on a DNP communications link. EachDNP slave should be assigned a unique address.The DNP NETWORK CLIENT ADDRESS settings can force the B30 to respond to a maximum of five specific DNP masters. Thesettings in this sub-menu are shown below.PATH: SETTINGS PRODUCT SETUP COMMUNICATIONS DNP PROTOCOL DNP NETWORK CLIENT ADDRESSESThe DNP ADDRESS setting is the DNP slave address. This number identifies the B30 on a DNP communications link. EachDNP slave should be assigned a unique address.The DNP UNSOL RESPONSE FUNCTION should be “Disabled” for RS485 applications since there is no collision avoidancemechanism. The DNP UNSOL RESPONSE TIMEOUT sets the time the B30 waits for a DNP master to confirm an unsolicitedresponse. The DNP UNSOL RESPONSE MAX RETRIES setting determines the number of times the B30 retransmits an unsolic-ited response without receiving confirmation from the master; a value of “255” allows infinite re-tries. The DNP UNSOLRESPONSE DEST ADDRESS is the DNP address to which all unsolicited responses are sent. The IP address to which unsolic-ited responses are sent is determined by the B30 from the current TCP connection or the most recent UDP message.The DNP scale factor settings are numbers used to scale analog input point values. These settings group the B30 analoginput data into the following types: current, voltage, power, energy, power factor, and other. Each setting represents thescale factor for all analog input points of that type. For example, if the DNP VOLTAGE SCALE FACTOR setting is set to “1000”,all DNP analog input points that are voltages will be returned with values 1000 times smaller (for example, a value of 72000V on the B30 will be returned as 72). These settings are useful when analog input values must be adjusted to fit within cer-tain ranges in DNP masters. Note that a scale factor of 0.1 is equivalent to a multiplier of 10 (that is, the value will be 10times larger).The DNP DEFAULT DEADBAND settings determine when to trigger unsolicited responses containing analog input data. Thesesettings group the B30 analog input data into the following types: current, voltage, power, energy, power factor, and other.Each setting represents the default deadband value for all analog input points of that type. For example, to trigger unsolic-ited responses from the B30 when any current values change by 15 A, the DNP CURRENT DEFAULT DEADBAND settingshould be set to “15”. Note that these settings are the deadband default values. DNP object 34 points can be used tochange deadband values, from the default, for each individual DNP analog input point. Whenever power is removed andre-applied to the B30, the default deadbands will be in effect.The B30 relay does not support power metering. As such, the DNP POWER SCALE FACTOR and DNP POWER DEFAULTDEADBAND settings are not applicable. DNP NETWORK CLIENT ADDRESSESCLIENT ADDRESS 1:0.0.0.0Range: standard IP addressMESSAGE CLIENT ADDRESS 2:0.0.0.0Range: standard IP addressMESSAGE CLIENT ADDRESS 3:0.0.0.0Range: standard IP addressMESSAGE CLIENT ADDRESS 4:0.0.0.0Range: standard IP addressMESSAGE CLIENT ADDRESS 5:0.0.0.0Range: standard IP addressNOTENOTE