Instruction Manual

Chapter
16
16-1
Program Editing
This chapter describes how to edit instructions in your program:
rules for editing instructions
editing relay-type instructions
editing other instructions
This section outlines the rules for editing instructions:
editing
searching
clearing memory
Editing
Changes to an existing program can be made through a variety of editing
functions (Table 16.A). Instructions and rungs can be added or deleted;
addresses, data, and bits can be changed.
Table 16.A
Editing
Functions
1
Function Key Sequence Mode Description
Inserting a condition
instruction
[INSERT]
(Instruction)
(address)
or
[INSERT][←]
(Instruction)
(Address)
Program Position the cursor on the instruction that will precede the
instruction to be inserted. Then press key sequence.
2
Position the cursor on the instruction that will precede the
instruction to be inserted. Then press key sequence.
2
Removing a condition
instruction
[REMOVE]
(instruction)
Program Position the cursor on the instruction to be removed and press
the key sequence.
Inserting a rung [INSERT]
[RUNG]
Program Position the cursor on any instruction in the preceding rung
and press the key sequence. Enter instructions and complete
the rung.
Removing a rung [REMOVE]
[RUNG]
Program Position the cursor anywhere on the rung to be removed and
press the key sequence.
IMPORTANT: Only addresses corresponding to output
energize latch and unlatch instructions are cleared to zero.
Chapter Objectives
Rules for Editing Instructions