Description The Automated Logic ME812U-LGR is a high-performance programmable controller designed for advanced building automation and HVAC system management. It supports BACnet communication and features extensive I/O capabilities, including 12 universal inputs and 8 universal outputs for flexible control applications. With multiple communication ports and Ethernet connectivity, this controller enables seamless integration across diverse automation networks. Technical Specifications Condition New/Never Used Surplus Brand Automated Logic Category Building Automation Part Number ME812U-LGR Subcategory System Controllers Series ME812U Series Communication Protocol BACnet (IP, MS/TP, PTP) Power Supply 24 VAC / 26 VDC Frequency 50/60 Hz Processor 32-bit Motorola PowerPC Memory 8 MB Flash, 16 MB SDRAM (Battery-backed) Universal Inputs 12 (14-bit A/D, multi-signal support) Universal Outputs 8 (0-10V, 0-20mA, relay drive) Ethernet Port 10/100 Mbps EIA-485 Port ARCNET / BACnet MS/TP EIA-232/485 Port Configurable (BACnet PTP support) Rnet Port RS Sensors and BACview6 Displays Xnet Port 500 Kbps for I/O Expansion Expansion Capability Up to 5 MEx Modules Operating Temperature -20°F to 140°F (-29°C to 60°C) Humidity Range 10–90% Non-condensing Protection Built-in Surge and Transient Protection Certifications UL916, CE, FCC Class A Enclosure Aluminum Cover with Removable Terminals Dimensions 7.5” W x 11.31” H x 1.25” D Weight 1.4 lb Information About ME812U-LGR The ME812U-LGR is part of the Automated Logic ME812U series, engineered for scalable and high-capacity building automation control within BACnet-based systems. It incorporates a powerful 32-bit Motorola PowerPC microprocessor along with a dedicated communication co-processor for efficient data handling and system responsiveness. The controller supports BACnet/IP, BACnet MS/TP, and BACnet PTP protocols, ensuring compatibility with a wide range of third-party and native devices. It includes multiple communication interfaces such as Ethernet, EIA-485, and configurable EIA-232/485 ports, along with Rnet and Xnet ports for sensor integration and I/O expansion. Designed for demanding commercial environments, it provides reliable control, monitoring, and expansion capabilities for complex HVAC and facility systems. Key Features: BACnet Multi-Protocol Support: Supports BACnet/IP, BACnet MS/TP, and BACnet PTP for flexible network integration. High I/O Capacity: Includes 12 universal inputs and 8 universal outputs for comprehensive control and monitoring. Advanced Microprocessor Architecture: Utilizes a 32-bit Motorola PowerPC processor with communication co-processors for high performance. Multiple Communication Ports: Features Ethernet, EIA-485, EIA-232/485, Rnet, and Xnet ports for extensive connectivity options. Universal Input Compatibility: Supports voltage, current, thermistor, RTD, and dry contact inputs with pulse counting capability. Configurable Universal Outputs: Provides analog and relay output options with HOA switches for manual control. I/O Expansion Capability: Supports up to five MEx expansion modules for scalable system design. Robust Protection and Reliability: Includes built-in surge protection and operates in wide environmental conditions. The ME812U-LGR delivers the reliability and precision required for complex building automation and HVAC control systems.
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