The L-ROC Room Controller provides the basis for a revolutionary room automation system based on IP, which seamlessly integrates with native BACnet/IP networks and LonMark Systems at the controller level. Together with the L-STUDIO software flexible room solutions can be created with little effort and changed on demand. An integral part of the L-ROC System is a Web based room operation via an LWEB‑803/802 dashboard and the automatic generation of graphics for the L-VIS Touch Panel for local operation. For CEA‑709 room control units, CEA‑709 multi-sensors and other CEA‑709 devices can be connected via the LonMark TP/FT-10 channel on the L-ROC controller. Local inputs and outputs are provided via L-IOB I/O Modules. KNX S-mode devices can be connected through KNX TP1 by using the optional LKNX-300 module.

Flexible Room Concept for Room Automation

A room segment is the base unit of configuration in the L-ROC System. The L-ROC Library provides a set of functions for every window axis including:

• Lighting control with constant light controller
• Sun blind control with angle adjustment and year shade progression
• Temperature control for heating, cooling, and ventilation
• Occupancy detection
• Window monitoring

Each L-ROC Room Controller can handle up to 16 room segments. Based on the various room segment types, larger buildings can be modeled in a hierarchical manner. Areas are built with an area manager by combining multiple room controllers. A floor manager manages multiple areas in one floor. Depending on the architecture, the building can be split up into areas and floors as needed.

Area/Floor Managers are responsible for handling functions needed for corridor, staircase, and bathroom lighting, or even ventilation. Floor managers facilitate the data communication between the floors and handle floor relevant functions.

Rooms can now be created arbitrarily in any size by moving, building, or removing partition walls. The resulting logical connections between the L-ROC Room Controllers will be built automatically. All graphical user interfaces and network connections are automatically generated and adapted respectively.

AST™ for Every Room Segment

L-ROC provides a set of functions for Alarming, Scheduling, and Trending (AST™) for every room segment. Each room segment can be operated entirely independently. The AST™ functions are fully available to higher-level systems through BACnet/IP and Web services (L-WEB System). Distributed schedulers can be efficiently managed and changed with LWEB-900.

Room Communication through redundant or separated IP Network

L‑ROC Room Controllers are interconnected via a 100Base-T Ethernet network. Each L-ROC device is equipped with two Ethernet ports. It can either be configured to use the internal switch to interconnect the two ports or every port is configured to work in a separate IP network.

When the Ethernet ports are configured for two separate IP networks, one port can be connected for instance to a WAN (Wide Area Network) with enabled network security (HTTPS) while the second port can be configure to be connected to an insecure network (LAN) where the standard building automation protocols like BACnet/‌IP, LON/‌IP, or Modbus TCP are present. These devices also feature firewall functionality of course to isolate particular protocols or services between the ports.

Using the internal switch, a daisy chained line topology of up to 20 devices can be built, which reduces costs for network installation. The IP switch 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.

Integrated L-WEB Room Operation

L-ROC controllers provide graphical user interfaces for room operation directly via an IP connection to the user, without the need for an additional web server. Graphic projects are distributed among the L-ROC Room Controllers and can be accessed by LWEB‑802/‌803 from any PC workstation, smart phone, or tablet PC running Android or iOS.

Integration of the L-STAT Network Thermostat

Per L-ROC Room Controller up to 16 L-STAT room control devices can be integrated into building automation via Modbus RTU (RS-485) interface. In addition to the attractive, modern design and intuitive operation, L-STAT provides a range of other features to individually increase the room comfort.

Internal sensors measure temperature, humidity, condensation, occupancy, and also the CO₂ value of the air. There is also the possibility to control room functions from remote via an IR remote control. Standard pushbuttons and external temperature sensors can be integrated through additional inputs. A built-in NFC chip (Near Field Communication) provides the ability to direct mobile devices to the address of the respective room website.

Connection to Higher-Level Systems

Higher-level systems can seamlessly integrate L-ROC Room Controllers via BACnet/IP, LonMark IP-852, or Web services (OPC).

All these protocols are simultaneously available. It is possible to integrate the L-ROC Room Controller in a BACnet Operator Workstation and at the same time L‑ROC will communicate with other CEA‑709 devices on the IP-852 channel. Moreover, a higher-level SCADA or ERP System (Facility Management) gets information directly from the L-ROC Room Controller by using Web services based on OPC.

Full LWEB-900 Support

The L-WEB System uses Web services to communicate with the L-ROC System. All device and operating parameters of every single L-ROC Room Controller are automatically synchronized with the LWEB-900 SQL database by the LWEB-900 client or the LWEB‑900 Master Device Manager. The parameters are available to all L-WEB client applications.

I/O Integration via Plug and Play

The L‑ROC Room Controllers can automatically integrate physical I/Os by using L-IOB I/O Modules. Up to 24 L-IOB I/O Modules can be connected through LIOB‑Connect, LIOB-FT, or LIOB-IP. All I/Os can be used by the L-ROC application and are also available via the Web interface of L-ROC. All configurations of the L-IOB Modules are stored on the L-ROC and loaded on demand into the L-IOB I/O Modules. Exchanging I/O modules is done without any configuration effort requiring only a few quick configuration steps.

Year Shade Progression

Especially in dense city areas, buildings can cast shadows on each other. In case a façade element is shaded by another building, sunblinds can be deactivated for better day light harvesting. The high-performance L-ROC controllers allow to calculate a 3D model in dxf-Format of the building and its close-by neighbors. The model can be constructed using common 3D CAD software or can be derived from a Building Information Model. In case the scenery changes due to new constructions, only the new buildings have to be inserted in the model. The calculation can be done for each window individually or per shadowing zone.

IoT Integration

The IoT function (Node.js) allows connecting the system to almost any cloud service, either for uploading historical data to analytics services, 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.

L-STUDIO

L-STUDIO is the world’s first IEC 61499 based room automation system. Any room function can be realized with L-STUDIO in a distributed system of L-ROC devices. This new approach in automation is called “Cloud Control”. In a cloud of L-ROC devices, all functions can be mapped automatically. The object-oriented design method allows the efficient reuse of previously implemented functions. In the graphical development environment of L‑STUDIO, entire corridors are created out of the room segment objects with just a few mouse clicks. The corridors are interconnected as floors and floors become buildings. The entire building application is automatically distributed to the L-ROC Controllers and is loaded into the devices.

New functions can be added to the room segment objects after initial configuration. These new functions can be applied individually or to all room segment objects very easily. Comprehensive debugging and watch functions allow for complete building troubleshooting of plant operation. An extensive library of functions is provided for heating, ventilation, cooling, lighting, sun blind control, and security. With the integrated L‑VIS/‌L‑WEB Configurator, graphical pages for L-VIS Touch Panels and L-WEB applications can be created.

Features

L-ROC Room Automation - Video 

Specification

Dimensions in mm [inch]

LROC-102

 

 

General Specifications
Dimensions (mm)	159 x 100 x 75 (L x W x H)
Installation	DIN rail mounting following DIN 43880, top hat rail EN 50022
Power supply	24 V DC / 24 V AC ±10 %, typ. 2.5 W
Operating conditions	0 °C to 50 °C, 10 – 90 % RH, non condensing, degree of protection: IP40, IP20 (terminals)
Specifications
Type	LROC-102
Interfaces	2 x Ethernet (100Base-T): Web services (OPC XML‑DA, OPC UA), LonMark IP‑852*, BACnet/ IP**, LIOB‑IP, KNXnet/ IP, Modbus TCP (Master or Slave), HTTP, FTP, SSH, HTTPS, Firewall, SNMP 1 x LIOB‑Connect 2 x USB-A: WLAN (needs LWLAN‑800), EnOcean (needs LENO‑80x), MP-Bus (needs LMPBUS-804), SMI (needs LSMI-804), LTE (needs LTE-800)
	1 x TP/ FT‑10* (LonMark System) 1 x LIOB‑FT 2 x RS‑485 (ANSI TIA/ EIA‑485): BACnet MS/ TP** or Modbus RTU (Master or Slave) 2 x EXT: M‑Bus, Master EN 13757‑3 (needs L‑MBUS20 or L‑MBUS80) or KNX TP1 (needs LKNX‑300) or SMI (needs LSMI-800)
	* Router between LonMark IP‑852 and TP/ FT‑10 ** Router between BACnet/ IP and BACnet MS/ TP
L‑IOB I/O Modules	Up to 24 L‑IOB I/ O Modules in any combination of type LIOB‑10x, LIOB‑15x, and LIOB‑45x/55x
BACnet/‌IP Router	1
LonMark CEA-709 Router	1
Program cycle time	Event-triggered
Programming, tools	L‑STUDIO (IEC 61499 based)

Resource limits
Total number of data points	30 000	LonMark Schedulers	100
OPC data points	10 000	LonMark Alarm Servers	1
BACnet objects	2 000(analog, binary, multi-state)	E-mail templates	100
BACnet client mappings	5 000	Math objects	100
BACnet calendar objects	25	Alarm logs	10
BACnet scheduler objects	100 (64 data points per object)	M-Bus data points	1 000
BACnet notification classes	32	Modbus data points	2 000
Trend logs (BACnet or generic)	512 (4 000 000 entries, ≈ 60 MB)	KNX TP1 data points	1 000
Total trended data points	1 000	KNXnet/IP data points	1 000
CEA-709 network variables (NVs)	2 000	Connections (Local / Global)	2 000 / 250
CEA-709 Alias NVs	2 000	Number of L-WEB clients	32 (simultaneously)
CEA-709 External NVs (polling)	1 000	L-IOB I/O Modules	24
CEA-709 address table entries	1 000 (non-ECS mode: 15)	Number of EnOcean devices	100
LonMark Calendar	1 (25 calendar patterns)	EnOcean data points	1 000
SMI devices (per channel)	16	MP-Bus devices (per channel)	8 (16 MPL)