savin1_20200910_095733各种文档ie_controller_

1、Redundant Fieldbus Solutions1 WAGO Kontakttechnik GmbH & Co. KG MAP02.2010Definition of Redundancy Hot redundancy means that the system has multiple systems functioning in parallel. A voter evaluates the results; with 3 systems in parallel based upon majority decision. It must be ensured that the pr

2、obability of simultaneous failure of two devices tends to 0. Cold redundancy means that the system has multiple functions in parallel,but only one works at a time. The active function is being monitored and in case of failure switched to a parallel existing function. It must be given, that for the o

3、verall task switching is acceptable with a predictable behaviour. Standby redundancy Additional means will be provided upon fault or failure.Simple Standby Solutions can be accomplished by means of WAGO IE controllersHOT-Redundancy or Cold-Redundancy with an automatic switch function and synchroniza

4、tion is not possible.Only Profisafe hardware meets SIL level 2/3 and has to be used within a Profisafe environment.2 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010Failure behaviorFail-safe means that in case of a failure the system is no longer available. The failure of a component must lead to a man

5、ageable result.Fail Passive means that a system comprises minimum two fail-safe systems including error detection and suppression. Both systems have to compare their output results. In case of deviations, the output result will be zero. Thus, the system behaves passively.Fail Operational Fault-toler

6、ant means that the facility continues to operate in case of an error. To achieve this, the system must consist of at least three systems which need to have fault diagnosis and error suppression.Through a comparison between the systems the faulty part can be determined.Under a single point of failure

7、, short SPOF, German as single point of failure, defined as a part of a technological system whose failure the failure of the entire system moves to itself.3 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010Principle Duplex ArchitectureTheory of Operation: Two Independent control branches with active se

8、lftesting and fault toleranceAll loops are monitored for ground faults, short circuits, cable breaks and power failureOutput VotingInput Voting: 1 out of 2,2 out of 3 ABB4 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010Principle Highly Available Control System IEC61508 SIL3 ABB5 WAGO Kontakttechnik Gm

9、bH & Co. KG MAP 02.2010Principle DUAL CPU (HOT-Standby) Omron6 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010Enhanced“ Ethernet/IP Redundancy Rockwell7 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010System-redundant & failsafe Profinet architecture Siemens8 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010

10、Redundant Fieldbus SolutionsIE Redundancy & Standby Solutions Series 750/753/758Possible Application ScenariosDUAL-LANLoop Redundancy (750-8XX, 750-35X) Redundant Ring (852-104)Port Redundancy (750-882)Standby Solutions9 WAGO Kontakttechnik GmbH & Co. KG MAP02.2010Redundant Fieldbus SolutionsTOP1 75

11、0-871(-881) Operation under Managed SwitchMaster Controller 750-841, -871 Redundancy Feature via Redundant Ring Protocol Rapid SpanningTree, JetRing etc.(1 Port “Forwarding Port”; 1 Port “blocked”)852-104Managed Switch Upon ring failure second port will be activated (2 “Forwarding Ports”) Applicatio

12、n of any unmanaged switches within the “ring” possible low configuration efforts (at Switch only)- “Double Ring” feature along with 852-104 now Switchover in a few 100 ms Ring Devices preferably acting as “Slaves” 750-871 can be used as Master (Client) with activated “fast aging” (1) mode 750-881 (F

13、W2) has no Fast Aging mode yet!Simple, cost-effective, efficient but SPOF !750-871-871Ring protocol750-87110 WAGO Kontakttechnik GmbH & Co. KGMAP02.2010750-87175XRedundant Fieldbus SolutionsTOP2 750-882 Virtual Ring SolutionSubNet BSubNet A Master A & B at the beginning and end of the lineMaster A 7

14、50-882Master B 750-882 Master A & B exchange status informationvia 2nd port/net no ring no switches no configuration !750-871-871 P-2-P communication with a segment withoutlimitations but no direct Routing between Net A & BStandby Master or port redundancy functionality for lowest possible investmen

15、t costs.Predominantly, for networking of intelligent controllers750-87111 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010750-87175XRedundant Fieldbus SolutionsTOP2 750-882 Virtual Ring SolutionApplication Note a30000512 WAGO Kontakttechnik GmbH & Co. KGMAP 02.2010Redundant Fieldbus SolutionsTOP2 750-8

16、82 Virtual Ring SolutionModbus requests will be automatically diverted via Modbus Relay“ controller upon communication failures.Application Note a30000513 WAGO Kontakttechnik GmbH & Co. KGMAP 02.2010Redundant Fieldbus SolutionsStandby-MasterTOP3 750-882 “DUAL LAN”750-882Master 750-882 highest availa

17、bility due to redundant Master &redundant Ethernet coms Simultaneous communication via two Masters over two networks possible (Modbus UDP) Slaves “decide” whether output information from Master A or B shall be used.(individual application program)Subnet A Subnet BX750-882 Any Redundancy Scenario at

18、Master requires an individual application approach.(DI/O cross monitoring)750-882unmanaged 3-port Network A & B can be built as rings(double redundant)750-882Most economical solution for demanding ship monitoring and control systems14 WAGO Kontakttechnik GmbH & Co. KG MAP 02.2010Redundant Fieldbus SolutionsTOP4 750-882 DUAL LAN Connectivity (Master-2-Slave)- Master sends Read/Write“ commandsTo PORT A & B simultaniously- The last telegramwins“ (no programming15 WAGO Kontakttechnik GmbH & Co. KG