SE Modicon M580 Brochure

Modicon M580 automation platform Architectures High-availability architectures

Presentation

Types of high-availability architectures The EcoStruxure Modicon PAC high-availability system is used for more demanding applications in terms of the availability of their control/command system where no interruption of the process can be tolerated. By minimizing process downtime, the high-availability system with EcoStruxure Control Expert (2) software increases productivity. High-availability system based on Ethernet DIO architecture In a Hot Standby topology based on Ethernet DIO architecture, devices are linked to distributed I/O over Ethernet. This high-availability system requires one Modicon M580 Ethernet module BMENOC03 p 1, or if less than 61 DIO, one Modicon X80 BMENOS0300 in each Primary and Standby PLC using distributed devices. The changeover from Primary to Standby processor might not be bumpless depending on the type of DIO used. Please contact our Customer Care Center for more information. High-availability system based on Ethernet RIO architecture In a Hot Standby topology based on an Ethernet RIO architecture, devices are hardwired on remote I/O over Ethernet. This high-availability system is used for sensitive processes that require an I/O control takeover time within the region of the PLC scan time. As the Ethernet RIO drops are synchronized with the PLC CPU scan time, the CPU changeover is carried out smoothly at the outputs, i.e. it is bumpless. Due to the built-in Ethernet technology of Modicon M580 controllers, the remote I/O architecture is simple to realize. There is no need to insert an Ethernet head adapter module in both the Primary PLC and the Standby PLC. The capacity of Modicon X80 I/O drops depends on the CRA Ethernet drop adapter used. A maximum of 31 RIO drops can be supported in a high-availability remote I/O architecture. Automatic switching of the IP address of these modules helps to ensure transparent addressing to SCADA, even in the event of a CPU changeover. High-availability system based on mixed DIO/RIO architectures In a Hot Standby topology based on mixed DIO/RIO architectures, RIO and distributed equipment are integrated on the same physical network. This system features an optimized wiring with RIO and DIO control via a single medium: the DIO are controlled via the CPU. Components of an high-availability system (1) An high-availability (HSBY) system is based on global redundancy of control equipment and network. In case of a shortcoming happening on one control equipment or network, the alternative equipment or network takes over in order to avoid process downtime. Modicon range offer comprises a large choice of devices and modules specifically designed for redundancy purposes:

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SCADA server

Engineering station

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Modicon M580 (“Primary PLC”)

Modicon M580 (“Standby” PLC)

HSBY communication link CRA

DRS switch

DRS switch

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RIO ring

Modicon X80 RIO

STB

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High-availability system based on mixed DIO/RIO architectures

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b Modicon M580 Redundant processors b Modicon M580 Ethernet Network modules b Modicon X80 Redundant power supplies b Modicon X80 backplanes dedicated to redundant power supplies b Modicon X80 I/O expansion modules b Modicon switches

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DIA6ED2131203EN

DIA6ED2140903EN

(1) Requires EcoStruxure Control Expert or Unity Pro Extra Large software u V11.0.

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