USER MANUAL APS 6.0

Using WHO
12–5
2. Cursor to the processor node address you wish to change and press
CONFIG
OFFLINE
CONFIG
NODE
ADDRESS
F8
.
3. Type any number between 1 and 31.
4.
Press [ENTER] and cycle power to the processor.
Assign other node addresses in the same manner until all of your processors have a
unique node address.
Note You cannot change the node addr ess of the terminal at this display . If you try, the
message CURRENT DEVICE IS NOT A PROCESSOR appears.
Consequences of Changing a Processor Node Address
Remember that
the pr ocessor node addr ess r esides in the status data file (wor d
S:15) of a pr
ocessor file . This means that when you overwrite the contents of
processor memory by using the Restore or Memory Transfer function, the node
address may change as follows:
Restore  When you restore a processor file, then cycle processor power, the node
address of the restored processor file will take effect, overwriting the previous node
address.
Memory T ransfer  When you transfer a processor file from a memory module to
the processor , then cycle processor power, the node address of the transferred file
takes ef fect, overwriting the previous node address.
Note If
the pr ocessor node addr ess is unknown, immediately after you r estore (download)
a pr ocessor file or transfer a processor file fr om a memory module to the pr ocessor,
select [F8] Node Addr ess fr om the Who Active table and r e-enter the curr ent node
addr ess. Failur e to do this can r esult in a duplicate or incorr ect node addr ess after
you cycle power to the pr ocessor.
Setting the Processor Maximum Node Address
If
a processor is the highest numbered node, access the Who Active display to set
the maximum node address. For the most efficient network operation, we
recommend setting the maximum node address of the highest numbered node equal
to the highest node address (total number of devices) used on the network.
Note If
you set the maximum node addr ess of the highest node you ar e using to its own
addr ess, a higher number ed node is pr ohibited fr om being added to the network.