SE Modicon M580 Brochure

Modicon M580 automation platform

Components (continued)

Types of backplanes Backplanes for standard applications

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Modicon M580 processors can work in either an X-bus rack or a dual (Ethernet and X-bus) rack.The Modicon Ethernet backplanes which provide X-bus connection and Ethernet connectivity are available with 4, 8, and 12 slots. A single configuration can support up to 7 standard BMX racks used as expansion racks in addition to the main rack, separated by a cumulative distance of up to 30 m/ 98 ft . An Ethernet RIO (EIO) drop is composed of one or two racks that can be either a BMX X-bus rack or a BME Ethernet rack. The expansion rack can only be a BMX X-bus rack. All Ethernet backplanes are available in a version suitable for use in harsh environments. An Ethernet switch is embedded in the Ethernet backplane. This switch is connected to several slots on the backplane. In the case of 12-slot backplanes, not all slots have Ethernet connectivity. Only 8 slots are available for Ethernet, but they are placed in several locations along the rack for maximum flexibility of use (see page 2/10) . Backplanes for high-availability applications b For higher availability, Modicon M580 processors or Modicon X80 drops can work in a dual power supply backplane BMEXBP ●● 02 , which supports the redundant power supply BMXCPS4002 p in pairs. b Dual power supply backplanes are available with 6 and 10 dual (Ethernet and X-bus) slots, in which a maximum of 4 out of the 6 slots and 8 out of the 10 slots are available for Ethernet. Note : It is not possible to plug a standard power supply into a dual power supply backplane; the dual power supply backplane is only compatible with the redundant power supply. However, a single redundant power supply can be plugged into the standard backplane. Ethernet backplanes The Modicon dual backplanes provide X-bus connection and Ethernet connectivity. One Ethernet switch is embedded in the backplane with connectivity to some slots on the backplane. There are two types of Ethernet backplane: for standard applications with one power supply module inserted, up to 12 modules will be supported. For high-availability applications with 2 power supply modules for redundancy, 6 or 10 modules will be supported. Not all slots have Ethernet connectivity in the case of 12-slot backplanes. Using such connectivity, Ethernet-based modules (both Schneider Electric and third-party) can communicate with any other module or device that is reachable via the Ethernet and IP networks. An additional connector is added to some slots of the backplane, next to the X-bus connector. The Ethernet backplane provides multiple communication buses compared with the X-bus backplane to improve connectivity on the backplane. These buses can be connected to Ethernet modules and used to communicate different types of data for different purposes (see page 2/11). The following communication buses are present in Ethernet backplanes: b X-bus b Ethernet Expanded backplanes To expand the configuration using additional racks, a bus expansion module ( BMXXBE1000 ) and X-bus cables are required (see Modicon X80 modules catalog, chapter 2). The expanded backplane can be either a standard backplane, including a power supply module and supporting up to 12 modules, or a dual power supply backplane, including 2 redundant power supply modules and supporting up to 10 modules. However, an expanded backplane can only be an X-bus rack, plugged with the basic I/O modules, and is not compatible with all the advanced function modules (such as HART or weighing). Please refer to the compatibility table for more information (see page 1/18). It is also possible to expand a drop backplane. Each rack will be assigned a physical address using 4 micro switches located in the bus expansion module: b The main rack containing the processor will be assigned address 0. b The other racks will be assigned addresses 1 to 7.

8-slot Ethernet + X-bus backplane

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6-slot dual power supply backplane

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