Description

Schneider Electric BMEH586040 Redundant Processor Module

The Schneider Electric BMEH586040 also cataloged as the BMEH586040 redundant processor module operates as a dedicated hardware component for high-availability control execution and synchronized redundancy management within the Modicon M580 automation system. It provides hardware-level support for dual processor synchronization through HSBY architecture and Ethernet-based system communication.

Suffix Breakdown & Model Matrix

No validated manufacturer-provided suffix decomposition is available for BMEH586040. The model is treated as a single ordering reference within the Modicon M580 redundant processor family.

Hardware Specifications

Parameter	Specification
ModelBrand	Schneider Electric BMEH586040
Origin	France
Weight	900 g (package)
Dimensions	9 cm x 17.5 cm x 25 cm (package)
OperatingTemp	0 to 60 degC
PowerConsumption	295 mA at 24 VDC
Redundancy Architecture	HSBY redundant processor synchronization
Communication Interfaces	2 x Ethernet TCP/IP (device network), 1 x Ethernet service port, 1 x Ethernet HSBY port, USB mini-B
System Capacity	Up to 31 remote I/O stations, 64 distributed equipment nodes
Memory	64 MB RAM program/data, 4 MB HSBY data, 4 GB expandable flash

Schneider Electric PLC Redundancy & Ethernet Control Characteristics

The BMEH586040 implements dual-processor HSBY synchronization through dedicated Ethernet interconnect, maintaining state alignment between primary and standby CPUs. The HSBY channel operates independently of standard device network traffic, isolating redundancy exchange frames from RIO scanner and DIO scanner communication paths.

Ethernet TCP/IP segmentation supports separation between service-level access and deterministic control traffic. The backplane architecture maintains cyclic task execution consistency under redundant switchover conditions, ensuring memory image coherency across fast and master cyclic tasks.

Frequently Asked Questions

Q: Does the module support hot standby switchover without task interruption?
A: The HSBY architecture maintains synchronized memory and process image replication. Switchover behavior depends on task cycle phase alignment and redundancy configuration state.

Q: What is the function of the dedicated HSBY Ethernet port?
A: It is used exclusively for redundancy synchronization traffic between primary and standby processors, isolated from standard TCP/IP device network communication.

Q: Can remote I/O scanning continue during processor transition?
A: RIO scanning is maintained through configured Ethernet I/O architecture, with continuity dependent on network topology and redundancy configuration state retention.

Field Installation Guidelines

The module shall be installed in a Modicon M580-compatible rack with correct backplane seating alignment. Ensure power is isolated at 24 VDC before insertion or removal. HSBY Ethernet cabling must be routed separately from high-noise power conductors to maintain signal integrity of redundancy synchronization traffic. Shield termination should be implemented at designated grounding points only, avoiding multiple earth loops across rack assemblies.

Specifications

• Brand: Schneider Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems