Contents
MWeb-DALI, supervision unit for DALI
General description
The MWEB is a central supervision unit which enables the remote supervision of emergency lighting installations. This remote supervision is possible from any computer through the LAN-connection which is a standard feature on all MWEB-types. Additionally the remote supervision can also be made from the MWEB itself by choosing the MWEB-TSCREEN type, which is equipped with a touchscreen along with the standard LAN-interface.
To collect and process all the information needed to implement the remote control, the MWEB unit has to communicate with all the emergency lights present in the installation. There are 2 possible ways for the MWEB to communicate:
- Wired communication: The wired-type communication is operating on a 2-wired BUS based on the rugged Meterbus technology designed to operate over very long distances (>km). In this case the emergency lights have to be equipped with SRM-type emergency lighting units.
- Wireless: The communication can also be implemented using wireless signals with 2.4GHz operating frequency. In this case the MWEB has to be ordered as an MWEB-WLAN-x unit, x refering to the suitable wireless-option. These options depend on the antenna type which is required (x=0 for internal antenna and x=1, 2 or 3 for specific external antenna models). In this case the emergency lights have to be equipped with SF-type emergency lighting units.
Depending on the size of an installation using wired communication, additional units might be needed. These additional units are used as concentrators for the signals on the bus and are called K-BOX (for collector-box). During the configuration procedure the engineer has to specify which type of installation is being put into service. The MWEB unit is then only addressing K-BOXes which are themselves communicating with the emergency lighting units.
Important comments
Comment 1: All the MWEB-WLAN-x units are also equipped with the wired communication interface (Meterbus). Using such units, it is possible to supervise mixed-mode installations from the same MWEB-WLAN-x unit. Part of the installation can be wired (and SRM-units are being addressed) and other parts of it can be wireless (with SF-units being addressed).
Comment 2: The touchscreen option can be combined with the wireless communication type. In that case MWEB-TSCREEN-WLAN-x units have to be ordered.
System installation size
The sizes of the installations which can be supervised can be summarized as follows:
- MWEB or MWEB-TSCREEN : 125 wired SRM-units
- MWEB (or MWEB-TSCREEN) with K-BOXes : 63 K-BOXes, each controlling 125 wired SRM-units (alltogether up to 7875 SRM-units)
- MWEB-WLAN-x or MWEB-TSCREEN-WLAN-x : 125 wired SRM-units and/or 512 wireless SF-units
- MWEB-WLAN-x (or MWEB-TSCREEN-WLAN-x) with K-BOXes : 512 wireless SF-units and/or 63 K-BOXes, each controlling 125 wired SRM-units (total up to 7875 SRM and wireless units)
User interface
MWEB as a WEB-server connected to a LAN network using the TCP/IP protocol — see MWEB LAN TCP/IP interface
MWEB-TSCREEN with local touchscreen control — see MWEB-TSCREEN interface
MWEB connected to a LAN network, diagnostics using the Telnet protocol — see MWEB LAN Telnet interface
User interface customization
MWEB unit allows to customize the top frame of the web server page, and the main screen on the LCD display.
User interface customization
Maintenance for the MWEB configuration file
After connecting new units to the MWEB configuration file needs to be updated with description of the unit location, or cahnge the automatically assigned bus address for the wireless devices.
Description for the unit location can be modified or entered manually through the web interface, or it can be merged automatically with site design documents.
MWEB configuration files
MWEB slave network
To improve the large system monitoring speed, MWEB could connect to the slave units as described in MWEB slave units
Modbus access
MWEB controller will respond as a slave to the Modbus master requests, Currently only command 3 (Read Multiple Holding Registers) is supported.
Modbus can be accessed through the TCP/IP or over the RS-485 link.
Remote monitoring through GSM network
Multiple system installations could be monitored from the single location. Remote systems connected through the GSM network:
Remote monitoring
Application notes
Information about specific user operations on the MWEB is available at App notes
Firmware updates
SSL certificates
Cover Your Data Assets with TLS
Creating a Self-Signed SSL/TLS Certificate for Secure IoT Applications
Cloud portal
Cloud portal for the MWEB control
User Guides
English (no LCD): mweb_userguide_en.pdf
Deutsch (with LCD): mwebde190.pdf