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What is the difference between the M580 PAC BMEXBP backplane's two types of connectors, Ethernet and X Bus?

Published date: 13 September 2019

Issue
The difference between the M580 PAC BMEXBP backplane's two types of connectors, Ethernet and X Bus
 
Product Line
Modicon M580 PAC BMEXBP
 
Environment:
EcoStruxure Control Expert
Unity Pro 
 
Resolution
The Modicon M580 PAC BMEXBP backplanes have two types of connectors, Ethernet and X Bus. 
The X Bus connection present on all M580 racks is the vary same that is used on the M340 backplane.
It is used for to obtain and exchange the below type of data with the M580 CPU:
1.  Configuration data for the X80 modules
2.  Application and diagnostic data

The BMEXBP backplane Ethernet connector is used for:
1. eX80 I/O modules, which require an Ethernet bus on the rack in order to exchange data (for example, X80 HART modules)
2. Communications to third-party modules that require Ethernet
3. Ethernet communication modules that interlink to the M580 CPU

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