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BMEH5820KD

BMEH5820KD Schneider | Conformal Coated M580 Controller

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  • Manufacturer: Schneider

  • Product No.: BMEH5820KD

  • Product Type: Processor Module

  • Product Origin: FR

  • Payment:T/T, Western Union

  • Weight: 850g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The Schneider Electric BMEH5820KD is a ruggedized, high-availability Programmable Automation Controller (PAC) engineered specifically for severe industrial environments. As the heavy-duty, conformal-coated variant within the Modicon M580 family, the BMEH5820KD is treated with a protective circuit board coating that meets ISA-S71.04 Class G3 harsh environment standards, guarding internal electronics against humidity, chemical vapors, and atmospheric pollutants. Built for zero-downtime applications, this redundant CPU manages up to 2048 discrete I/O and 512 analog I/O points across an expanded operating temperature range of -25 °C to +60 °C. Powered by a 24V DC backplane feed with a net weight of 0.85 kg (1.87 lbs), it combines 8 MB of internal program storage with Achilles Level 2 certified cybersecurity features for mission-critical infrastructure.

Technical Specifications

Parameter Specification
Catalog / Part Number BMEH5820KD
Manufacturer / Brand Schneider Electric
Environmental Protection Grade Conformal Coated (ISA-S71.04 Class G3 / Harsh Atmosphere Rated)
High-Availability Architecture Hot Standby Redundant Redundancy (HSBY Dual CPU)
Memory Configuration 8 MB Program Memory / 1024 KB Data Memory
Field Control Capacity 2048 Discrete I/O / 512 Analog I/O Channels
Logic Processing Speed 0.12 µs per Boolean Instruction
Backplane Current Requirement 270 mA at 24 V DC
Extended Operating Temperature -25 °C to +60 °C (-13 °F to +140 °F)
Vibration & Shock Resistance 3 Gn continuous vibration / 30 Gn operational shock
Product Net Weight 0.85 kg (1.87 lbs)

Key Hardware & Operational Features

  • Class G3 Conformal Coating: Specialized polymeric coating shields delicate surface-mount components against sulfur gas, corrosive salt spray, and extreme humidity.
  • Sub-Zero Thermal Tolerance: Engineered to start up and run continuously down to -25 °C without requiring cabinet heater accessories.
  • Bumpless Dual-CPU Synchronization: High-speed optical/Ethernet linking maintains real-time memory mirrors to execute seamless hot failovers.
  • Hardened Ethernet Communications: Dual-ring Modbus TCP and EtherNet/IP ports ensure uninterrupted field bus traffic during single cable cuts.

Installation & Field Wiring Guidelines

1. Rack Selection: Always install the BMEH5820KD into a matching conformal-coated X-Bus / Ethernet backplane (BMEXBP series with 'H' or 'D' suffixes).

2. Cabinet Sealing: Maintain IP54 panel sealing standards when installing in Class G3 environments to maximize the protective benefit of the coated board assembly.

3. Ground Connection: Fasten the protective earth conductor directly to the rack ground point using heavy copper braid to prevent static discharge build-up.

Frequently Asked Questions (FAQs)

Q1: What environment is the BMEH5820KD specifically designed for?
A1: Designed for corrosive, high-humidity, or chemical environments meeting ISA G3 standards.

Q2: How does BMEH5820KD differ from the standard BMEH5820KA?
A2: It features protective conformal coating and a lower operating limit of -25 °C.

Q3: What backplane power supply is required?
A3: Draws 270 mA at 24V DC from the Modicon M580 rack power module.

Product Resources

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🏷️ Tags: Processor Module
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