Rockwell Automation 1747-PT1, D1747NP002 Hand-Held Terminal - Manual (Page 116)

Chapter 7
Creating and Editing a Program File
7–4
This section describes the following editing techniques:
•
entering a rung
•
adding a rung with branching
•
modifying rungs
•
modifying instructions
•
modifying branches
•
deleting branches
•
deleting and copying instructions
•
deleting and copying rungs
Important: In the following examples, there may be multiple ways to enter
certain instructions. The examples are chosen to show the
simplest methods of programming and editing.
Ladder Rung Display
When you are editing a ladder program offline, a typical rung display
appears as follows:
F1 F2 F3 F4 F5
> INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG
OFL
OTE:O0:3.0/0
<
END
>
] [ ( )
These numbers in the upper right corner of the display provide
you with the following ladder program information: When you locate the cursor on an instruction
(as shown below), the HHT displays the
instruction mnenomic and address in the upper
left corner of the display.
The HHT displays the full address. For example, when
you assign the address O:3/0, the programming device
displays it as O0:3.0/0 (output file, file 0, slot 3, word 0,
terminal 0).
2.0.0.0.2
file number
rung number
nest level
branch level
instruction number in rung (An
asterisk [*] means the cursor is not
on an instruction, but rather on a
power rail or a branch.)
NO FORCE
Indicates the force status of the cursored instruction.
Editing a Program File