Master Light Mode - OBELUX Medium-Intensity 2000cd compact Series Manual

The light can be dimmed by using DIP6 and DIP7. Dimming is light brightness as percentage of full power.
Note that the light stay in test mode despite DIP7 is turned off.
DIP switch
6 7
off off 100%
on off 30%
off on 100%
on on 10%

4.5 Master light mode

Any obstruction light can be set as a master of a light network. Only one light shall be the master in the
network. Master unit broadcasts time and illumination data to slave units via RS-485 / Modbus. Time is
typically received from GPS and illumination information comes from
the master unit to slave units is interrupted, the slave units will use local photocell setting and local time in
their operations. As the data flow resumes, the slaves automatically synchronise themselves with the master
unit.
Chain the lights as shown in section 3.2.5.
Set a lamp to master mode by switching its DIP7 on. Set DIP7 off in the slave lamps to put them to slave
mode.
DIP switch
7
off This device is slave
on This device is master (master)
Set the master light to stand-alone mode and the slave lights to Modbus mode with DIP8.
DIP switch
8
off Stand-alone (master)
on Modbus
Use configuration DIP switches 1-4 to give the slave lights RS-485 bus addresses. Duplicate addresses on
the same bus are not allowed. Give lights connected to the same communication bus an address starting
from one. RS-485 bus should be terminated with on-board 120 ohm resistors by turning on the termination
DIP switch on both ends of the communications bus.
In the master lights Web interface, configure:
► Data Tables -> Settings -> Slave Options
•
B0: Transmit Behavior Bits
► Data Tables -> Settings -> Slave behavior
•
B0: LI Red Twilight
•
B1: MI Red Twilight
•
B2: HI Red Twilight
•
B3: LI Flash (visible)
•
B4: LI Flash (IR)
► Data Tables -> Settings -> Options2:
•
B2: Do not use own photocell (will use default ToD, if no master connection)
•
B3: Use Default FPM if master connection lost
•
B6: Transmit FPM (Master mode only)
Then reset the lamps for the settings to take effect.
© Obelux Oy 2020
Master/Slave mode
(slaves)
Operating mode
(slaves)
Technical information in this document is subject to change without notice.
Medium-Intensity 2000cd compact series manual
Dimming
photocell. If the information flow from
Page 19 of 21