Toshiba GR-200-5 Instruction Manual

Also see for GR 200 Series: Instruction manual Instruction manual Instruction manual Instruction manual Instruction manual

6F2T0207 (0.01)GRE200 (5,6)- 866 -11.2.2 Redundant LAN (PRP/HSR operation)The user can allow the IED operate in the redundant LAN communication (IEC 62439-3). Tooperate, the user should set either PRP or HSR for scheme switch [RedundantMode].(i) Overview‘Parallel redundancy protocol (PRP)’ is designed for double LAN networks in order to constructhigh availability automation networks. Figure 11.2-2 shows an IED (i.e., Source, IED1 withPort A and Port B†) and a server (i.e., Destination, Substation computer with Port A and PortB). They are connected through LAN_A and LAN_B. For duplicating data, the IED have Linkredundancy entity (LRE) so that the IED can transfer data with A-Frame packet and B-Framepacket at the same time. At the destination, either frames being arrived later is removed.A-Frame LAN_ALAN_BOperatorworkstationB-FramePort ATx RxPort BTx RxLAN module(C11)LAN module(C12)DataCPUIED1SourcePort ATx RxPort BTx RxLAN module(C11)LAN module(C12)DataCPUPort ATx RxLAN module(C11)DataCPURedBox‡RedBox‡Substation computerPort A Port BTxTx RxRxDestinationDataCPUIED2IED3TOSHIBAF5F4F3F2F1CancelENTEROI LRCLEARTOSHIBAF5F4F3F2F1CancelENTEROI LRCLEARTOSHIBAF5F4F3F2F1CancelENTEROI LRCLEARFigure 11.2-2 PRP example for redundant LAN_A and LAN_B with DANP†Note:For the locations about the LAN module, see ChapterTechnical description:Signal processing and communication modules (→p. 645).‡Note: IED3 and Operator workstation (connected with singly attached node) can jointhe network with Redundancy boxes (RedBox).‘High-availability Seamless redundancy (HSR)’, for the ring topology, is designed to achievehigh reliability communication. Figure 11.2-3 illustrates IEDs connected over the ring LAN.As doubly ports (Port A and Port B) are embedded in an IED, the IED can transfer the datapacket (A-Frame and B-Frame) for the destination over the ring LAN.