ABB CMRB-11C 3AUA0000054682 Industrial module
Using the Redundancy Link Module CMRB-11C will do the conversion of one simple, non-redundant PROFIBUS line into two reciprocally redundant lines. You can position the Redundancy Link Module CMRB-11C directly after a PROFIBUS module (master), before a bus segment with several slaves or before an individual slave. PROFIBUS stations with redundant couplers can be directly connected to the PROFIBUS set redundant by CMRB-11C . Stations with only one interface can be optionally assigned to the one or other line. An alternative solution to the PROFIBUS line redundancy is to use a Fiber Optic Ring
You can achieve the highest availability when doing both, controller redundancy and PROFIBUS line redundancy by using two AC 800F with one CMRB-11C each. This topology combines the advantages of controller redundancy with the one of line redundancy as described in the above paragraphs.
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