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.
