Modicon M580 Plc Page 2-8 I/O architectures

2/8 Presentation, description Modicon M580 automation platform Integrated fieldbus architecture Presentation The integrated fieldbus architecture is based on local I/O architecture with the possibility of adding fieldbuses such as AS-Interface, Modbus SL, HART, etc. This kind of architecture is used for control systems that are wired to the main control cabinet. It consists of a mainly local topology with several peripherals distributed over ieldbuses. The Modicon M580 automation platform provides interrupt services for this type of application. Up to 94 slots are possible for I/O and communication modules in a configuration comprising a main rack and 7 expansion racks, connected by BMXXBE p 00 p rack expansion modules. Description The Modicon M580 automation platform provides local I/O management for control systems that are wired to the main control cabinet. The integrated fieldbus architecture can comprise a maximum of 10 I/O and communication modules in the main BMEXBP pp 00 rack, in addition to the CPU module 2 and the power supply module 1 . These local I/O and communication modules can be extended on expansion racks by using a BMXXBE p 00 p rack expansion module. The choice of appropriate racks depends on the required number of modules for the system. Main racks are available in the following formats: 4, 8, and 12 slots. If necessary, communication and network modules can be installed in the main rack. The majority of communication and network modules need to be in the main rack. As well as discrete and analog I/O modules, the following modules are available: b Communication modules: v Serial link 3 v AS-Interface 4 v HART 5 Some communication modules (Modbus/TCP and EtherNet/IP network module, HART analog I/O modules, etc.) require use of an Ethernet backplane. Integrated fieldbus architecture configuration rules When configuring an integrated fieldbus architecture system, the following 4 parameters should be considered: b Number of slots available in the 8 local racks b Slots available for optional modules b Power consumed by the installed modules b Addressing words available for configuring the modules Available slots and power consumption The integrated fieldbus architecture can have a maximum of 94 available slots (with eight 12-slot racks) for I/O modules, application-specific modules, and communication modules. These modules are powered from the power supply included in the rack. For a valid configuration, simply add together the consumption (in mA) of the modules in the rack and check that the total current is less than that provided by the selected power supply. This power consumption calculation can easily be performed using Unity Pro software. Empty BMXXEM010 modules are also available to occupy unused slots. Module addressing With Unity Pro (1) , the I/O addressing is unlimited (physical limitation: 94 slots). (1) Requires Unity Pro version "e8.0 software. Processors: page 1/20 Ruggedized Modicon M580 modules: page 4/2 Integrated fieldbus architecture: devices distributed over ieldbuses 1 2 3 5 4 Main rack Expansion rack X-bus 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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