Lighting Controls Blue Box LT Series Installation, Operation & Maintenance Manual page 93

THE BLUE BOX LT SYSTEM DIAGNOSTICS TOOLS
SYSTEM DIAGNOSTICS TOOLS (Continued)
screen for it to be able to communicate with the rest of the
bus . A device may be assigned a "type" through this screen .
If a device takes more than one address, the first address must
be used to define the device type and the clock will automati-
cally assign all (consecutive) addresses to the device .
The address assignment on the bus map must always
match the Bus Scan display . If they do not, errors will ac-
cumulate and devices may not function properly .
If more than one device is assigned the same address, there
may be address collisions that may be causing instability .
BUS MAP PAGE 1-19
ID1 : Panel LCP1
ID2 : Panel LCP1
ID3 : UNUSED
ID4 : UNUSED
ID5 : UNUSED
ID6 : UNUSED
ID7 : UNUSED
To check for collisions, refer to the "Scan by Serial Num-
ber" screen . To navigate to this screen:
USER MENU > SETUP MENU > RESTRICTED (PASS-
CODE 900001) > BUS MAP
SCAN BY SERIAL NUMBER
When starting up the system, one of the steps includes
filling out the "System Device Schedule" with the help of
this screen . This screen displays the address, device type
and serial number of every device on the bus .
Additionally, this screen detects and displays any "overlap-
ping addresses" or "address collisions" for the devices on
the bus . If more than one device is assigned the same ad-
dress, a collision is displayed on this screen .
To view the serial#, device type and address of every de-
vice on the bus, highlight "ENTER" and press ENTER .
If any collisions are detected, the screen will display the se-
rial number for any device that is colliding with the device
being viewed . One of these devices may then be assigned
a different address to eliminate the collision .
To navigate to this screen:
SCAN BY SERIAL#
Scanning complete.
Found 3 items.
Not addressed: 0
Hit ENTER when ready.
USER MENU > SETUP MENU > RESTRICTED (PASSCODE
900001) > ADDRESSING-BUS SCAN > MORE DIAGNOS-
TICS > DEVICE MANAGEMENT > SCAN BY SERIAL #
BUS SPLITTING TECHNIqUE FOR A POWERED BUS
This method is slightly different from the one in the "Sys-
93