Honeywell 2MLR-CPUH/T High Speed CPU Module

The Honeywell 2MLR-CPUH/T, also cataloged as the 2MLR-CPUH/T High Speed CPU Module, operates as a dedicated hardware component for program execution, I/O processing, and system memory handling within Honeywell MasterLogic 200R PLC platforms. It provides high-speed execution through cyclic scanning, time-driven interrupts, and internal memory interrupts to manage small to large-scale control networks.

Hardware Specifications

Backplane Bus Communication Velocity & Network Determinism

The Honeywell 2MLR-CPUH/T module features dynamic memory addressing and dedicated processing logic to support real-time execution across large I/O expansion configurations. Designed for deterministic network performance, the module coordinates fast I/O refresh rates and direct I/O execution modes to ensure minimal latency between logic solution and physical backplane updates. Operating across high-density backplanes supporting up to 31 bases and 372 slots, the unit manages robust communication across up to 128,000 remote I/O points while maintaining strict firmware execution cycles.

Frequently Asked Questions

Q: What I/O control methods are supported by the 2MLR-CPUH/T module?

A: The module supports scan synchronous batch processing I/O (refresh method) as well as the direct I/O method via explicit program instructions.

Q: How much current does the 2MLR-CPUH/T CPU draw from the backplane?

A: The current consumption of the module is rated at 1173 mA.

Field Installation Guidelines

1. Ensure the power supply to the base rack is completely de-energized and proper grounding precautions are in place before module handling.
2. Align the 2MLR-CPUH/T module with the dedicated CPU slot (typically slot 0) on the main backplane rack.
3. Carefully insert the module into the rack guides and press down firmly until the locking mechanism engages securely with the backplane connector.
4. Secure the top retention screw to ensure chassis stability and low-impedance ground bonding.
5. Verify that all network communication cables and system bus extensions are properly shield-grounded to prevent electrical noise interference.