Scan by Factory ID
This screen is to verify that there are no
items on the bus at the same address or
that there are no items on the bus that do
not have addresses assigned to them.
FACTORY ID-SCANNING
Hit
ENTER
to scan
for all items on the bus,
or EXIT to quit.
FACTORY ID-SCANNING
Scanning complete.
Found 11 items.
Collisions: 0
Not Addressed : 0
Hit
ENTER
when ready
FACTORY ID-SCANNING
Scanning complete.
Found 12 items.
Collisions: 2
Not Addressed : 1
Hit
ENTER
when ready
FACTORY ID-SCANNING
Item - ID - ADR
1
1601
7
SAVE
An address collision
with item 4
is detected
Please re-scan after
fixing
No Collisions
With Collisions
Even when no collisions are found one may wish to change the
address of an item so that a new item can be added to the bus at
that address. Press ENTER to find the item on the bus.
The “Item number” refers to the order of items found by the Unique
Factory ID, not the address of the item. One can find the address
number by scrolling on the Item Number . One may then scroll on
the address number to change it. Press SAVE to upload it and then
re-scan to make sure it does not overlap something else. Make sure
that PANEL SWITCH TYPES is updated as necessary.
FACTORY ID-SCANNING
Item - ID - ADR
1
1601
7 SAVE
No address collision
found on this card
MORE DIAGNOSTICS
DEFAULT TO MAIN: Yes
TRIGGER: NONE
DROPOFF STATS 1-80
DROPOFF STATS 81-127
RESET COUNTS
SCAN BY FACTORY-ID
Items at the same address will sometimes work and sometimes not .
They cause a bus to be slow and unresponsive and may make the
clock reset because it waits too long for a valid answer due to the
conflicts caused by two items answering at the same time.
Scanning with Collisions
If the bus comes up with collisions
they will show up like this:
Collisions means that there is
more than one item at the same
address.
Not Addressed means that that
item has a Zero Address.
Both items need to be handled by
being re-addressed which can be
done remotely if you know which
item is which from the unique Fac-
tory ID.
In the example above it shows that ITEM # 1 is at address #7
and has a collision with item 4 which will also be at address #7.
The question is which one of these should be at address #7.
This requires looking at the bus file and finding out the location
of the item at address # 7. Say it is a switch in room 303. Now
we have to have someone physically go to the switch while the
clock screen is set to “READ ADDRESS” and push the address
button. When it reads the address the unique ID will also be list-
ed. Say it is shown as 1601. That means that item 1 is the valid
item on the bus and item 4 is the one with the invalid address.
Usually this would be done just after adding a new item to the
bus. Then the one that was added would be the suspect device.
The new address can be scrolled to for the offending device
and highlight SAVE and press ENTER to re-address that item.
Make sure it is added to “PANEL SWITCH TYPES.”
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