M&M FDT 1.2.1 Online Specification
 4.10.7.1 Redundancy Scenarios


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Up to 4 FDT Interface Specification

4.10.7.1 Redundancy Scenarios
4.10.7.2 Redundancy Support in Frame Application
4.10.7.3 Parent Component for Redundant Fieldbus
4.10.7.4 Redundancy Support in Device-DTM
4.10.7.5 Scan and Redundant Slaves
4.10.7.6 Topology Import-/Export

4.10.7.1 Redundancy Scenarios


Scope of slave redundancy within FDT is one DTM for configuration of one device connected to either

  • Scenario 1: one fieldbus using two different addresses
  • Scenario 2: connected to two different fieldbuses controlled by one bus master.
Separate redundant devices (scenario 3 and 4) can not be handled within FDT, these scenarios would require additional Frame Application functionality e.g. with regard to data synchronization. In Scenario 1 and 2 redundant field buses must be managed by one redundancy aware parent component (e.g. a COMM-DTM) specific for the appropriate redundant field bus technology. This parent component should typically also be able to handle DTMs for redundant and not-redundant field devices concurrently.


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Last updated 2015-02-05 15:17
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