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GFK-0825F Chapter 5 Station Configuration 5-7
5
Change the Serial Bus Address of the Bus Interface Unit
For a new BIU, the Serial Bus Address is assigned on the Program Block ID screen, as described
previously. If you want to change the Serial Bus Address of a previously-configured BIU, use the
Device SBA screen shown below, instead.
When you press F1 (Genius Configuration) from the Configuration menu, the following screen
appears:
Device SBA
14
Prv > entr
Serial Bus
Address
Press F1 if you want to
return to the previous
menu.
On this screen, you can change a previously-configured Serial Bus Address (block number). There
are 32 available addresses (from 0 to 31) on a bus. One is needed for the Hand-held Monitor;
typically this is Device Number 0. Another is needed for the Bus Controller. Typically, this is 31
(30 or 31 for redundancy systems). A Bus Interface Unit is usually assigned a Serial Bus Address
from 1 to 29 or 30. Duplicate SBAs disrupt communications and are not permitted.
Note
If a Bus Interface Unit has a Serial Bus Address conflict on an operating bus, it
will not scan the modules in the station until the fault is cleared.
1. Enter a Serial Bus Address using the HHM keypad.
2. Press the F4 (entr) key. An error message appears if the number has been used for another
device on the bus.
If you want to go to the next screen without changing the Serial Bus Address, press F2 ( > ).