EtherSeries DNP- 3 Gateway User’s GuideEtherSeries EDNP-3 FunctionsThe gateway allows serial DNP-3 RTUs to communicate andinteroperate with DNP-3/IP (either TCP or UDP) basedcontrollers. The DNP-3 standard protocol is an asynchronousprotocol designed to connect directly to computer asynchronousports. DNP-3 has been extended to operate over Ethernet usingthe IP protocol suite. This gateway converts between the DNP-3 IP protocol and DNP-3 serial protocols transparently.The EDNP-3 enables one or more DNP-3 ethernet basedcontrollers to communicate with DNP-3 based serial RTUs. Itwill not allow DNP-3 IP RTUs to operate with a serial DNP-3controller.Other FeaturesDual Serial PortsThe EDNP-3 contains two serial ports. The two serialports are independent, and may be used with differenthosts and different serial protocol speeds as well asdifferent DNP-3 address ranges and timeouts.Multiple HostsThe EDNP-3 may communicate with multiple host controllers.Upgradeable FirmwareFirmware upgrades are downloadable to the gateway. Theutility program required for this, and the actual firmwareupgrades, are available from your dealer. A Windows95/98/XP/NT workstation is required to run the downloadsoftware.2