ABB LD MUI-01 3AFE61320946P0001
ABB LD MUI-01 3AFE61320946P0001
ABB LD MUI-01 3AFE61320946P0001
ABB LD MUI-01 3AFE61320946P0001
ABB LD MUI-01 3AFE61320946P0001

ABB LD MUI-01 3AFE61320946P0001 | LD Series Operator Interface Unit for DCS/SIS

  • Brand: ABB
  • Model: LD MUI-01 3AFE61320946P0001
  • Product Type: Operator Interface Unit (OIU) / Man-Machine Interface (MUI) Module
  • Series: LD Series
  • Core Function: Provides graphical display of process variables/alarms and accepts operator input (touch/keypad) for DCS/SIS systems; facilitates real-time monitoring and control command execution.
  • Key Specs: 5.7-inch color TFT touchscreen (640×480 resolution), supports Modbus TCP/IEC 61850, 24V DC power supply, -20°C to +60°C operating temperature.
Get a Quote
Manufacturer:
Part number: ABB LD MUI-01 3AFE61320946P0001
Our extensive catalogue, including : ABB LD MUI-01 3AFE61320946P0001 , is available now for dispatch to the worldwide.

Description

LD MUI-01 3AFE61320946P0001: Product Overview
The LD MUI-01 3AFE61320946P0001 is an operator interface unit within ABB’s LD Series, designed for integration into distributed control systems (DCS) and safety instrumented systems (SIS). Its role is to act as the primary human-machine interface (HMI), positioned in control room operator stations or local panelboards to enable visual monitoring and manual intervention in industrial processes. In applications like power generation, chemical processing, and pharmaceuticals, it bridges the gap between operators and automated systems, translating complex process data into actionable insights.
Functionally, the unit processes digital data from DCS/SIS controllers (e.g., Symphony Harmony, Advant OCS) to display real-time variables (temperature, pressure, flow), alarms (priority-coded), and trend graphs on a 5.7-inch color TFT touchscreen. It accepts operator input via resistive touch or membrane keypad for commands like setpoint adjustment, mode switching (auto/manual), or alarm acknowledgment. Core signal handling includes receiving structured data (via Modbus TCP/IEC 61850) and transmitting user inputs to the controller. As part of the LD platform, it leverages modular compatibility with ABB control systems, ABB Panel Builder M configuration software, and a compact panel-mount design. Benefits include reduced training time (intuitive GUI), minimized input errors (touch confirmation), and seamless integration with existing automation architectures.
LD MUI-01 3AFE61320946P0001: Technical Specifications

ABB LD MUI-01 3AFE61320946P0001

ABB LD MUI-01 3AFE61320946P0001

  • Model Number: LD MUI-01 3AFE61320946P0001
  • Manufacturer: ABB
  • Product Type: Operator Interface Unit (OIU)
  • Display Type: 5.7-inch Color TFT Touchscreen (resistive)
  • Resolution: 640×480 pixels (VGA)
  • Communication Protocols: Modbus TCP, IEC 61850-8-1 (GOOSE), RS485 (Modbus RTU)
  • Input Methods: Touchscreen (4-wire resistive), 8-key membrane keypad (arrow, enter, escape)
  • Display Content: Process variables, alarm lists (up to 500 entries), trend charts (4 concurrent traces), system status
  • Power Supply: 24V DC (nominal, 18-32V DC operational range)
  • Operating Temperature: -20°C to +60°C
  • Humidity Range: 5% to 95% non-condensing
  • Protection Rating: IP65 (front panel, dust/water resistant), IP20 (rear)
  • Dimensions: 180mm (H) x 220mm (W) x 60mm (D) (panel-cutout: 170x210mm)
  • Weight: 0.8kg
  • Certifications: CE, UL, cULus, RoHS, IEC 61000-6-2 (EMC)
Core Features & Customer Value​
Color TFT touchscreen for enhanced readability: The 5.7-inch display with 640×480 resolution renders process graphics (e.g., P&IDs) and alarm lists in high contrast, reducing operator eye strain during 12-hour shifts. For example, in a power plant control room, color-coding alarms (red=critical, yellow=warning) allows rapid prioritization, cutting response time by 30%.
Resistive touch and keypad for flexible input: The dual-input design accommodates gloved or bare-hand operation in diverse environments—chemical plants (gloves) or cleanrooms (bare hands). Membrane keypad shortcuts (e.g., “ACK” for alarm acknowledgment) minimize touchscreen navigation, reducing input errors during high-stress events (e.g., turbine trip).
Multi-protocol communication for system compatibility: Support for Modbus TCP and IEC 61850 enables integration with ABB Symphony Harmony, Advant OCS, and third-party DCS (e.g., Siemens SIMATIC PCS 7). For engineers, this avoids proprietary gateways, cutting integration costs by 15-20% in system upgrades.
Panel-mount design with IP65 front panel: The compact unit mounts in standard control panels, with a sealed front panel resisting dust/water splashes in harsh environments (e.g., pulp mills, offshore platforms). Maintenance teams can clean the screen with industrial wipes without damaging components.

ABB LD MUI-01 3AFE61320946P0001

ABB LD MUI-01 3AFE61320946P0001

Typical Applications​
In a 500MW coal-fired power plant’s control room, the unit displays boiler drum pressure, turbine speed, and emission levels (NOx/SO2) for operators. During a soot blower activation, touchscreen input adjusts steam flow setpoints, with real-time trend charts validating process stability.
At a chemical plant’s ethylene cracker SIS, it shows safety instrument status (e.g., emergency shutdown valves, flame detectors) and alarm logs. Operators acknowledge high-temperature alarms via the keypad, triggering investigation workflows in the plant DCS.
In a pharmaceutical tablet press line, the unit monitors batch parameters (tablet weight, hardness) from the DCS. Touchscreen navigation allows recipe selection for different drug formulations, with audit trails logged for FDA compliance.

Related products