Honeywell 2MLR-CPUH/F MasterLogic-200 Fiber Redundant CPU Module

Basic Information

Model No.: 2MLR‑CPUH/F Product Series: MasterLogic‑200 (ML200R) Device Type: High‑performance Fiber‑Optic Redundant PLC CPU Module Application: Power plant, petrochemical, large‑scale process control; integrated with Experion PKS, for critical control requiring bumpless CPU hot‑standby switchover.

Key Specifications:

• Instruction Execution Speed: LD instruction 0.042µs/step
• Program Memory: 7MB (including system memory); 16MB built‑in Flash for program & data backup
• Data Memory: 2MB
• Max Local Base I/O: 23808 points; Max Network Remote I/O:128000 points
• Max Expansion Bases: 31 units, up to 372 I/O slots
• Remote I/O Distance: Max 2km via fiber; 100m via UTP cable
• Redundancy: Dual CPU hot‑standby with fiber synchronization; bumpless switch‑over <50ms
• Communication Ports: Fiber sync port, 10/100M Ethernet, RS232C, USB debug port; Support Modbus‑TCP, Modbus RTU, HNet protocolsHoneywell
• Power Supply: DC5V from backplane bus
• Operating Temperature: 0℃ ~ +60℃
• Programming Languages: Ladder Diagram, SFC, Structured Text, Instruction List (read‑only)
• Lifecycle: Discontinued by OEM, no new project orders. New surplus, used and refurbished spare parts available in market.

Main Functions

1. PLC logic execution, sequence control, closed‑loop regulation and data processing
2. Fiber‑based CPU hot‑standby redundancy, bumpless switch‑over for uninterrupted operation
3. Multiple communication interfaces for Experion PKS, third‑party SCADA and smart instruments
4. Support P2P peer‑to‑peer communication between PLCs
5. Large‑capacity remote I/O expansion, long‑distance field deployment over fiber
6. Program & data retention in Flash memory; module self‑diagnostics and fault alarm reporting.

Compatibility Notes

1. 2MLR‑CPUH/F: Fiber‑optic redundant CPU. Sibling model 2MLR‑CPUH/T uses copper cable for redundancy synchronization; they are NOT directly interchangeableHoneywell.
2. Must be installed with MasterLogic‑200R redundant base and redundant power modules (2MLR‑AC12 / 2MLR‑AC22) for full redundant system.
3. Firmware version must match project; download program and configuration after CPU replacement.
4. Not compatible with non‑redundant MasterLogic‑200 (2MLI‑series CPU) hardware bases.