LIOB-596 Building Automation Controller

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LIOB-596 Building Automation Controller:8 x Universal I/O (IO), 6 DO (4x Relay 2A, 2x TRIAC 0.5A)

LIOB-596 I/O Controllers are IP-enabled, compact, programmable BACnet Building Controller (B-BC) with physical inputs and outputs and integrated graphical visualization.


LIOB‑596 I/O Controllers are equipped with two Ethernet ports, including a built-in Ethernet switch. This allows for building a daisy chained line topology of up to 20 devices, which reduces costs for network installation. Dual Ethernet port devices also allow the setup of a redundant Ethernet installation (ring topology), which increases reliability. The redundant Ethernet topology is enabled by the Rapid Spanning Tree Protocol (RSTP), which is supported by most managed switches. Technology data points are automatically exposed as OPC tags for higher level OPC client applications or L‑WEB system via the integrated OPC server providing SSL encrypted web services (OPC XML‑DA) or UA Secure Conversation (OPC UA). The L‑IOB I/O Controllers further allow data exchange over global connections (network-wide data exchange), offer AST™ functions (Alarming, Scheduling, and Trending), store custom graphic pages for visualization in LWEB‑802/803, and can be seamlessly integrated in the LWEB‑900 Building Management System. The L‑IOB I/O Controllers implement the BACnet Building Controller (B-BC) profile and are BTL certified.

IoT Integration

The IoT function (Node.js) allows connecting the system to almost any cloud service, either for uploading historical data to analytics services, telemetry using MQTT, delivering alarm messages to alarm processing services or operating parts of the control system over a cloud service (e.g., scheduling based on Web calendars or booking systems). Processing Internet information such as weather data in forecast-based control is also possible. Finally, the JavaScript kernel also allows implementing serial protocols to non-standard equipment in primary plant control.

Local Operation and Override

All L‑IOB I/O Controllers are equipped with an LCD display (128x64) with backlight and jog dial for manual local operation and override. Device and data point information is displayed in text form and via graphical symbols.


Technical Features

  • Automation station with physical inputs and outputs
  • Programmable with L‑STUDIO IEC 61131‑3 and IEC 61499
  • Room controller for up to 2 room segments
  • 128x64 graphic display with backlight
  • Local and remote access to information about device status and data points
  • Manual operation using the jog dial or VNC client
  • Alarming, Scheduling, and Trending (AST™)
  • Node.js support* for easy IoT integration (e.g. Google calendar, MQTT, Alexa & friends, multimedia equipment, …)
  • Event-driven e-mail and SMS (requires LTE-800) notification
  • Math objects to execute mathematical operations on data points
  • Stores customized graphic pages
  • Visualization of customized graphic pages through LWEB‑900 (Building Management), LWEB‑803 (Monitoring and Control), or LWEB‑802 (Web Browser)
  • Support of the L‑STAT Room Operator Panel
  • Built-in OPC XML‑DA and OPC UA server
  • Dual Ethernet/IP interface
  • Access to network statistics
  • Compliant with ANSI/ASHRAE 135‑2012 and ISO 16484‑5:2012 standard Supports BACnet MS/TP and BACnet/IP
  • BACnet Client Function (Write Property, Read Property, COV Subscription)
  • BACnet Client Configuration with configuration tool (scan and EDE import)
  • B-BC (BACnet Building Controller) functionality, BTL certified
  • Compliant with CEA‑709, CEA‑852, and ISO/IEC 14908 Standard (LonMark System)
  • Supports IP-852 (Ethernet/ IP)
  • Support of dynamically created or static NVs
  • Support of user-defined NVs (UNVTs) and Configuration Properties (SCPTs, UCPTs)
  • Integrated BACnet/IP to MS/TP Router including BBMD and slave proxy
  • Gateway functions including Smart Auto-Connect™
  • Integrated web server for device configuration and monitoring data points
  • Connection to EnOcean wireless devices via LENO-80x Interface
  • Supports WLAN through LWLAN-800 Interface
  • Supports LTE through LTE‑800 Interface
  • Support of the L-STAT Room Operator Panel
  • Stores user-defined project documentation
  • Integration of damper actuator via MP-Bus
  • Support VPN


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