Configured for high-speed redundant backplane execution in Modicon M580 ePAC architectures, the Schneider Electric BMEH586040, also cataloged as the BME H58 2040 Redundant Processor Module, performs deterministic logic processing and synchronized data exchange across dual controller platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | BMEH586040 |
| Brand | Schneider Electric |
| Origin | France |
| Weight | 2 lb 0.0 oz (0.9 kg) |
| Dimensions | 3.0 in x 6.0 in x 5.0 in (7.6 cm x 15.2 cm x 12.7 cm) |
| Operating Temp | 0 to 60 deg C |
| Storage Temp | -40 to 85 deg C |
| Relative Humidity | 5 to 95 % at 55 deg C, no condensation |
| Power Consumption | 295 mA @ 24 V DC internal rack supply |
| Memory (Flash) | 4 GB expandable data storage |
| Memory (RAM System) | 10 kB system memory |
| Memory (RAM Program) | 64 MB program and data |
| Memory (RAM HSBY Data) | 4096 kB HSBY synchronization data |
| Instruction Throughput | 40 Kinst/ms @ 100 % Boolean; 60 Kinst/ms @ 65 % Boolean + 35 % fixed arithmetic |
| Rack Capacity | 1 local rack; 31 remote I/O stations; 64 distributed devices |
| Communication Ports | 1 USB mini-B, 1 Ethernet TCP/IP service port, 2 Ethernet TCP/IP device ports, 1 Ethernet HSBY port |
| Certifications | CE, CSA, UL, RCM, Merchant Navy, EAC |
| Standards Compliance | EN 61000-6-2, EN 61000-6-4, EN 61131-2, EN 61010-2-201 |
Backplane Bus Communication and Firmware Flash Compatibility
The BMEH586040 maintains deterministic data transfer over the X80 backplane bus with optimized firmware flash compatibility for seamless migration between M580 hardware generations. Integrated Ethernet HSBY links ensure synchronous program and I/O data updates without external switch dependency. Communication bandwidth supports up to six Ethernet modules and twenty-four AS-Interface modules, preserving real-time scanning performance under full processor load.
Frequently Asked Questions
Q: What is the maximum number of remote I/O drops supported in a single HSBY configuration?
A: The processor supports up to 31 remote I/O stations, each configurable with two racks containing X80 or Quantum I/O drops.
Q: Does the module support hot-swap replacement without interrupting process control?
A: Hot-swap is supported only when the processor is part of an active HSBY pair with synchronized firmware versions and matching application memory structures.
Q: What are the electrical isolation requirements for Ethernet HSBY cabling?
A: Ethernet HSBY ports require shielded twisted-pair cables grounded at one end only to prevent ground loops and maintain signal integrity during redundancy switching.
Field Installation Guidelines
Mount the BMEH586040 into a standard 19-inch rack using the supplied locking levers. Ensure proper ventilation clearance above and below the module to comply with ambient temperature ratings. Use separate cable routing for Ethernet service and HSBY ports to minimize crosstalk. Verify backplane connector alignment before securing the module to avoid bent pins. Perform firmware version verification prior to commissioning in redundant mode.
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