Advertisement
PROFINET-IO – benefit from tomorrow's
advantages today
One switch as MRP manager
controls the PROFINET-compliant
redundant ring.
High availability by ring redundancy
Naturally, PROFINET is inherently reliable in its own right,
but increased reliability of the network connection can
be achieved by closing the line structure to form a ring.
The advantage of a ring structure is that any single cable
failure or malfunction in one device will not lead to
a disruption in communication between other connected
devices. This highly secure method requires one device in
the ring to be a redundancy manager supporting the MRP
(Media Redundancy Protocol) as prescribed in the PROFINET
specification, to assure operation of all devices supporting
ring redundancy.
MRP included
Omron's SmartSlice remote I/O stations support the MRP
protocol as redundancy clients. They report the status of their
communication connections to the MRP manager. In case
of a connection failure, the MRP manager will activate the
alternative communication path, so that all stations remain
accessible. By including the SmartSlice stations as active
members of the ring, the number of dedicated switches
needed to build a redundancy ring is greatly reduced.
Advertisement
