Product Core Brief
- Model: 2MLR-CPUH/T
- Brand: HONEYWELL
- Series: MasterLogic 200R (ML200R)
- Core Function: Executes high-speed logic and batch control with hot-standby redundancy.
- Product Type: Redundant PLC CPU Module
- Key Specs: 23,808 I/O Points | 640 KB Memory | IEC 61131-3
- Condition: New Original (New Surplus)
Product Introduction
HONEYWELL 2MLR-CPUH/T serves as a redundant central processor for the MasterLogic-200 PLC system. It manages complex sequential and batch control applications with integrated fault tolerance.
This controller supports up to 23,808 I/O points and 640 KB of program memory. It integrates directly with Experion PKS networks for unified alarm and event management. Verify with OEM datasheet for exact scan cycle times, though typical logic execution runs well under 10 ms.
Honeywell 2MLR-CPUH/T
Key Technical Specifications
| Parameter | Value |
|---|---|
| Max I/O Points | 23,808 |
| Program Memory | 640 KB |
| Redundancy | Hot-Standby (CPU, Power, Network) |
| Programming Standard | IEC 61131-3 |
| Network Protocols | Profibus-DP, Modbus TCP/RTU |
| Communication | Fast Ethernet (100 Mbps) |
| Serial Interfaces | RS-232C / RS-422 / RS-485 |
| Control Capabilities | Logic, Sequence, Batch (S88) |
| Diagnostics | System Logs, Ping Test, Frame Monitor |
| System Compatibility | Experion PKS / Experion HS |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We trace source documentation and verify serial numbers against anti-counterfeit databases. Visual inspection checks for PCB corrosion or connector scratches.
- Live Functional Test: Power-on self-tests run first. We verify communication handshakes and execute continuous load runs exceeding 24 hours with temperature logging.
- Electrical Parameter Test: Insulation resistance gets measured at 500 V using a Megger. Readings must exceed 10 MΩ. Ground continuity is also confirmed.
- Firmware Verification: We read and record the firmware version. DIP switch and jumper settings receive photographic documentation before shipping.
- Final QC & Packaging: The unit seals in an anti-static bag. A QC Passed label with the test date goes on the exterior.
Honeywell 2MLR-CPUH/T
Replacement Pitfall Guide
❗ Firmware Mismatch: New hardware often ships with newer firmware. This causes bus errors if the controller expects an older revision. Always match the existing system version.
❗ DIP Switch / Jumper Misconfiguration: Factory defaults rarely match your field settings. Check the bus termination resistor position on the third terminal block. Wrong settings kill communication.
❗ Terminal / Cable Incompatibility: Pin definitions change between revisions. Verify shield grounding at the cabinet entry point. Floating shields introduce noise into safety channels.
❗ Power Supply Mismatch: Calculate total rack power consumption carefully. Add 20% headroom for inrush currents. Undersized supplies cause intermittent module resets during startup.
❗ ESD Damage: Use a grounded anti-static mat during installation. Dry environments increase static risk significantly. One spark destroys internal logic gates.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
- HONEYWELL 2MLR-CPUH/T → HONEYWELL 2MLR-CPUH/T : Direct — Identical replacement
- HONEYWELL 2MLR-CPUH/T → HONEYWELL 2MLR-CPUH/F : Needs Adaptation — Verify redundancy type and firmware compatibility
- HONEYWELL 2MLR-CPUH/T → HONEYWELL 2MLI-CPUS : Incompatible — Non-redundant CPU vs redundant CPU
- HONEYWELL 2MLR-CPUH/T → HONEYWELL 2MLI-CPUH : Incompatible — Standard CPU lacks hot-standby redundancy
- Logic Scan Time: < 10 ms (Simulated load, 1000 I/O points)
- Peer-to-Peer Update: 100 ms (Fast Ethernet)
