Introduction to Programming
Chapter 4
420
Table 4.D
Editing Functions
1
Function
Mode
Key Sequence
Description
Inserting a Condition
Instruction
Program
[INSERT] [Instruction]
[Address]
or
[INSERT] [
←
] [Instruction]
[Address]
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 follow the
instruction to be inserted. Then press key sequence.
2
Removing a Condition
Instruction
Program
[REMOVE] [Instruction]
Position the cursor on the instruction to be removed and
press the key sequence.
Inserting a Rung
Program
[INSERT] [RUNG]
Position the cursor on any instruction in the preceding rung
and press the key sequence. Enter the appropriate
instructions to complete the rung.
Removing a Rung
Program
[REMOVE] [RUNG]
Position the cursor anywhere on the rung to be removed
and press the key sequence.
NOTE:
Only addresses corresponding to OUTPUT
ENERGIZE, LATCH, and UNLATCH instructions are
cleared to zero when the rung is removed.
Change data of a word or
block instruction
Program
[INSERT] [Data]
[CANCEL COMMAND]
Position the cursor on the word or block instruction whose
data is to be changed. Press the key sequence.
To terminate.
Change data of a word or
block instruction ONLINE
Run/Program
[SEARCH] [5] [1] [Data]
[INSERT]
[CANCEL COMMAND]
Position the cursor on the word or block instruction whose
data is to be changed. Press the key sequence. Cursor
keys can be used as needed.
Press [INSERT] to enter the new data into memory.
To terminate.
Change the address of a
word or block instruction
Program
[INSERT] [First Digit] [
←
]
[Address]
[CANCEL COMMAND]
Position the cursor on a word or block instruction with data
and press [INSERT]. Enter the first digit of the first data
value of the instruction. Then use the [
↑
] and [
↓
] key as
needed to cursor up to the word address. Enter the
appropriate digits of the word address.
To terminate.
1
These functions can also be used during OnLine Programming (Refer to Section 4.4.5).
2
When bit address exceeds 5 digits, press the [EXPAND ADDR] key before entering address and enter a leading zero, if necessary.
Inserting an Instruction
Only nonoutput instructions can be inserted in a rung. There are two ways
of doing this.
One way is to press the key sequence [INSERT] [Key sequence of
instruction] [Key sequence of address]. The new instruction will be
inserted after the cursor’s present position. If an instruction is to be entered
at the beginning of a rung, the cursor can be positioned on the previous
rung’s output instruction. If the cursor is on the END statement, however,
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