New firmware 4.0 for modular managed switches and managed compact switches

The new firmware 4.0 is now available for the industrial Ethernet components modular managed switch (MMS) and managed compact switch (MCS).

Always the right solution: Modular, manageable Factory Line switches


The highlight of the firmware 4.0 is the optimized redundancy support; the expansion of the Rapid Spanning Tree protocol Fast Ring Detection attains switchover times of max. 100..500 ms in the case of media failure. A max. switchover time of 500 ms results for large automation networks with 1000 address table entries in the switches. These times are shorter if there are fewer address entries or terminals in the network.

The switches can be flexibly connected in meshed rings



Fast ring detection ensures quick switchover times in the case of connection failures.
The expansion of the RSTP Large Tree Support allows large rings with up to 57 MMS or MCS switches in redundant networks, whereby the structure can consist of one or more meshed rings. Backbone ports can be any switch ports and are automatically detected.




The Factory Line managed switches from Phoenix Contact with FW 4.0 also attain faster switchover times in the range of 1-6 sec. with the RSTP standard (i.e. without activated fast ring detection) in conjunction with switches from other manufacturers.
  • Support of the LLDP topology detection IEEE 802.1 from
    • Illustration of the local connection structure in the WBM switch
Managed compact switch: Compact block switches from Phoenix Contact with PROFINET functions




The other functions support the excellent suitability of the FL managed switches in PROFINET and Ethernet/IP applications.
LLDP can be used to detect topologies.



The new functions at a glance:

  • Optimized Rapid Spanning Tree protocol (RSTP)
  • RSTP expansion Fast Ring Detection
  • RSTP expansion Large Tree Support
  • Support of the LLDP topology detection IEEE 802.1 from
    • Illustration of the local connection structure in the WBM switch
    • Illustration of the global network structure in engineering tools
    • PROFINET recommendation/requirement
  • PROFINET device and DCP
    • IP addressing via the PROFINET engineering tool (such as PC WORX) and the PROFINET IO controller
    • Diagnostics in the PROFINET controller and PROFINET engineering
  • DHCP support (DHCP client)
    • IP addressing can take place via DHCP and the central DHCP server
  • DHCP relay agent with DHCP option 82 support
    • Connected devices receive their IP address from a DHCP server on the basis of the switch port information: Simplified terminal replacement if service becomes necessary
    • Ethernet/IP recommendation
  • Support of "Power over Ethernet" (IEEE 802.3 af) management


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