Honeywell 2MLR-AC13-CC DCS Power Supply

Product Details

2MLR-AC13-CC Product Description

The Honeywell 2MLR-AC13-CC is a system-ready AC power supply engineered for the Honeywell 2MLR Series distributed control architecture. Designed to deliver stable, conditioned power across the full DCS node stack, the 2MLR-AC13-CC serves as the foundational energy backbone that enables uninterrupted data flow between field instruments, remote I/O modules, PLC controllers, HMI workstations, and SCADA supervisory layers. In smart factory environments where millisecond-level communication latency and continuous uptime are non-negotiable, a reliable power supply is not a passive component — it is an active enabler of industrial network integrity.

Within the Honeywell 2MLR architecture, the 2MLR-AC13-CC powers the controller backplane and communication bus, ensuring that modules such as the 2MLR-CC01 controller card and 2MLR-IO16 remote I/O expansion units maintain synchronised data exchange with the process network. When field transmitters — pressure, temperature, flow, and level sensors operating on HART or 4–20 mA analog loops — feed live process values into the DCS, the 2MLR-AC13-CC sustains the voltage stability required for accurate signal conditioning and A/D conversion. Any power ripple or dropout at this layer propagates directly into data integrity failures, missed alarm triggers, and control loop instability.

In a fully connected smart factory, the 2MLR-AC13-CC anchors the power layer of a multi-tier industrial network. At the field level, sensors and transmitters — including Honeywell STT850 temperature transmitters and Honeywell SPS series pressure transmitters — generate continuous process data over HART loops. These signals are received by the 2MLR Series I/O modules, which depend on the 2MLR-AC13-CC for clean, regulated power to perform accurate analog-to-digital conversion before forwarding structured data packets to the DCS controller backplane.

The DCS controller, such as the Honeywell C300 Process Controller used in Experion PKS environments, aggregates this field data and executes control logic in real time. Communication between the controller and the plant-wide SCADA system — typically running on Honeywell Experion PKS or a third-party OPC-UA server — relies on a stable Ethernet backbone supported by industrial managed switches such as the Hirschmann RS20 or Moxa EDS-308 series. These switches segment the control network from the enterprise IT layer, ensuring deterministic data delivery and minimising latency in alarm propagation.

At the edge, Honeywell's Field Device Manager (FDM) or equivalent HART multiplexers collect device health diagnostics from field instruments and route them to the SCADA historian. This enables predictive maintenance workflows where abnormal vibration, temperature drift, or valve position deviation triggers automated alerts in the HMI — typically a Honeywell Station or equivalent operator workstation. The 2MLR-AC13-CC's role in this chain is to ensure that none of these data pathways experience power-induced interruption.

For remote I/O expansion, the 2MLR Series supports distributed I/O racks connected over the DCS communication bus. Each remote rack — powered through its own local supply or shared from the 2MLR-AC13-CC rail — feeds additional field signals into the controller without requiring additional cabling runs to the central cabinet. This architecture is particularly valuable in large-footprint process plants such as refineries, chemical facilities, and power generation stations where field devices may be hundreds of metres from the control room.

Edge gateways, such as the Honeywell Enraf or third-party Moxa MGate MB3000 series Modbus-to-Ethernet gateways, bridge legacy field devices that do not natively support modern industrial Ethernet protocols. These gateways translate Modbus RTU or RS-485 signals into structured Ethernet frames, feeding data into the SCADA layer for real-time visualisation on dashboards and trend historians. The 2MLR-AC13-CC ensures that the DCS backplane powering these gateway interfaces remains stable under variable load conditions.

Protocol Fragmentation: Many brownfield automation sites operate a mix of HART, Modbus RTU, Profibus DP, and legacy proprietary protocols. The 2MLR-AC13-CC, as part of the Honeywell 2MLR DCS ecosystem, supports integration with protocol conversion gateways that normalise these diverse signals into a unified data stream for the SCADA historian. This eliminates data silos where field device readings are trapped in isolated subsystems and never reach the operator dashboard.

Remote Monitoring and Diagnostics: Without stable power at the DCS backplane, remote diagnostic sessions — whether initiated from an Experion PKS console or a remote OPC-UA client — risk data corruption or session dropout. The 2MLR-AC13-CC's regulated output ensures that the controller's communication ports remain active and responsive during remote access, enabling engineers to perform live parameter adjustments, firmware updates, and fault diagnostics without on-site presence.

Production Line Transparency: Real-time OEE (Overall Equipment Effectiveness) dashboards require continuous, uninterrupted data feeds from every node in the automation network. A power supply failure at the DCS level creates blind spots in the production data stream, making it impossible to detect efficiency losses, quality deviations, or equipment degradation in real time. The 2MLR-AC13-CC's design prioritises output stability to keep every connected node visible to the SCADA and MES layers.

Alarm Management and Traceability: Industrial alarm systems depend on timestamped event logs generated by the DCS controller. If the power supply introduces noise or instability, false alarms can flood the operator console, masking genuine process deviations. The 2MLR-AC13-CC's clean power output reduces spurious alarm events and ensures that the alarm historian captures accurate, traceable event sequences for post-incident analysis and regulatory compliance.

System Scalability: As smart factory projects expand — adding new production lines, integrating additional field devices, or connecting to cloud-based analytics platforms — the DCS power architecture must scale without redesign. The 2MLR-AC13-CC's compatibility with the modular 2MLR Series backplane allows engineers to add I/O expansion racks and communication modules without replacing the core power infrastructure.

Q1: What communication protocols does the Honeywell 2MLR-AC13-CC support in a DCS network? The 2MLR-AC13-CC is a power supply module within the Honeywell 2MLR Series DCS architecture. It supports the backplane communication bus that interconnects HART-capable I/O modules, Modbus RTU gateways, and OPC-UA-enabled controller interfaces. Protocol conversion to Profibus DP or industrial Ethernet is handled by dedicated gateway modules within the same 2MLR rack assembly.

Q2: How does the 2MLR-AC13-CC ensure network stability in high-load automation environments? The 2MLR-AC13-CC delivers regulated DC output with low ripple, ensuring that controller CPUs, remote I/O modules, and communication interfaces receive consistent voltage even under dynamic load conditions. This is critical in environments where multiple field devices simultaneously transmit data bursts, such as during batch process transitions or alarm cascade events.

Q3: Can the 2MLR-AC13-CC be integrated with SCADA and HMI systems for remote diagnostics? Yes. As the power backbone of the 2MLR DCS node, the 2MLR-AC13-CC enables continuous operation of the controller's OPC-UA and Modbus TCP communication ports, which are the primary interfaces for SCADA data acquisition and HMI live data feeds. Remote diagnostic sessions via Experion PKS or third-party SCADA platforms remain stable as long as the 2MLR-AC13-CC maintains its rated output.

Q4: What quality assurance measures apply to the 2MLR-AC13-CC before shipment? Every Honeywell 2MLR-AC13-CC unit supplied by NANKMOS undergoes pre-shipment functional testing, including output voltage verification, load regulation testing, and communication bus compatibility checks. All units are covered by a 12-month warranty from the date of shipment. In-stock units are available for immediate dispatch with full traceability documentation.