ABB 1MRK002246-BEr00 Control/Processing Module

The ABB 1MRK002246-BEr00 serves as the primary 1MRK002246-BE Control/Processing Module utilized to execute high-speed arithmetic operations and real-time process control across ABB control network platforms.

Hardware Specifications

Backplane Communication and Deterministic Processing

• Backplane Bus Velocity: Integrates directly with the system backplane bus to ensure low-latency data exchange between digital, analog, and relay I/O modules, enabling continuous execution cycles of 1 to 5 ms.
• Firmware Flash Compatibility: Features 512 MB non-volatile flash storage dedicated to operational code and parameter retention, supporting controlled firmware revisions while enforcing data integrity during startup cycles.
• Deterministic Network Connectivity: Utilizes Modbus TCP/IP and optional Ethernet/IP protocols to execute deterministic process control commands across ABB control networks without operational jitter.

Frequently Asked Questions

Q: Does the module support live insertion and removal during continuous operation?

A: Hot-swapping is supported exclusively within redundant system architectures. Removing the module from a non-redundant rack configuration will interrupt backplane communications and stop active control loops.

Q: How are program routines and system configurations retained during power loss?

A: Programs and system settings write directly to 512 MB non-volatile flash memory, preserving data indefinitely without relying on internal battery back-up power.

Q: What onboard diagnostic capabilities are available for monitoring hardware integrity?

A: The onboard diagnostic engine monitors CPU operational status, I/O module health, internal communication faults, and system errors in real time via system registers and local status indicators.

Field Installation Guidelines

• Physical Mounting: Install the unit on a standard 35 mm DIN rail or target rack chassis. Maintain a minimum vertical spacing of 50 mm above and below the enclosure to ensure proper thermal dissipation via natural convection.
• Grounding Considerations: Connect the chassis ground point to the main cabinet functional earth bar using a low-impedance grounding strap. Ensure all communication cable shields terminate at a single grounding point to avoid ground loops.
• Power Wiring: Connect a regulated 24 VDC nominal power supply rated for a maximum 30 W load. Ensure power conductors meet local cross-sectional wire area standards and pass through a dedicated protective fuse.
• Signal Line Separation: Route Ethernet, Modbus TCP/IP, and proprietary fieldbus cabling in separate wireways away from high-voltage AC lines and inductive switching circuits to mitigate electromagnetic interference.