Omron SYSMAC C Series User Manual page 38

When you do this you will see that the display has gone directly to
address 0008. Before you can change the timer value, however, you must
first go to the timer's data by pressing
[+]
to move the program down one step. This is the display.
At this point you can make the change to 3.0 seconds by keying in
aag
Check the display. It should now look like this.
When correcting or modifying a program, this method of address locating
is particularly useful to go quickly to a new part of the program. Note,
though, that you must always start at the first address in memory which is
reached by pressing
CLR
one or more times.
Searching for a specific instruction
This second editing technique gives you a convenient way to locate a
particular instruction for which you do not have to know the program
address. Assume, for example, that you wished to go to an unknown
address containing Timer 00. To do this, press
CLR
several times until you see the first address.
Then key in
(timer number)
This takes you to address 0008 which contains Timer 00.