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Intesis
TM
BACnet Server
– PROFINET
User Manual r1.0 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL http
s
://www.intesis.com
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Media Redundancy Protocol (MRP)
Media Redundancy Protocol (MRP) is a PROFINET specific ring protocol ensuring redundancy in the network, which
can significantly decrease network downtime. It is a token-based ring protocol with a master-slave hierarchy.
All the nodes in the PROFINET network part of the ring are connected using ring topology (that is, the last node is
connected directly to the first node). If, at any point, the connection between two nodes would break, the data will
flow the other way instead, guaranteeing that data can be sent to/from the IO Controller to the IO Device(s). The self-
healing time is approximately 200 ms.
The Media Redundancy Master (MRM) is responsible for checking the functional capability of the ring network, by
sending out cyclic tokens. The Media Redundancy Clients (MRC) basically work as switches that pass on the tokens.
The Intesis gateway supports acting as a Media Redundancy Client (MRC) . It also supports propagating link
change to the Media Redundancy Master.
LED Indicators
Network Status LED (LED1)
LED state Status Comments
Off Offline No connection with IO controller
Green Online (RUN) Connection with IO controller
established, IO controller in Run state
Green, 1 flash Online (STOP) Connection with IO controller
established, IO controller in Stop state
or IO data bad.
Green, blinking (1Hz) Blink (DCP_Identify) Used by engineering tools to identify the
node on the network.
Red Fatal event Major internal error (this indication is
combined with a red module status LED)
Red, 1 flash Station name error Station name not set
Red, 2 flashes IP address error IP address not set
Red, 3 flashes Configuration error Expected identification differs from Real
identification.
Module Status LED (LED2)
LED state Status Comments
Off Not Initialized PROFINET interface not initialized.
Green Normal Operation PROFINET interface initialized.
Red Exception error Module in state Exception
Fatal event Major internal error (this indication is
combined with a red module status LED)
Alternating Red/Green Firmware Update Do NOT power off the module. Turning
the module off during this phase could
cause permanent damage.
7.
Connections
Find below information regarding the Intesis connections available.