Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual User Manual

Page 385

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Program Editing

Chapter 24

24-12

Table 24.C

Clear Memory Functions

Function

Key Sequence

Mode

Description

Data table clear

[CLEAR MEMORY]

[7][7]

(Start Address)

(End Address)

[CLEAR MEMORY]

Remote Prog

Displays a start address and an end address field.

Start and end word addresses determine boundaries for data

table clearing.

Clears the data table within and including addressed boundaries.

User program clear

[CLEAR MEMORY]

[8][8]

Remote Prog

Position the cursor at the desired location in the program. Clears

user program from the position of the cursor to the first boundary:

i.e. temporary end, subroutine area or end statement. Does not

clear data table or messages.

Partial memory clear

[CLEAR MEMORY]

[9][9]

Remote Prog

Clears user program and messages from position of the cursor.

Does not clear data table.

Total memory clear

[CLEAR MEMORY]

[9][9]

Remote Prog

Position the cursor on the first instruction of the program. Clears

user program and messages. Does not clear data table, unless

the cursor is on the first program instruction.

IMPORTANT: When memory write protect is active, memory cannot be cleared except for data table addresses 010Ć177 with a

programmed EEPROM installed.

Data Table Clear

You can clear all or part of the data table. Perform the following steps.

1.

Press [Clear Memory] [7] [7].

2.

Enter a start and end word address.

3.

Press [Clear Memory].

The data table is cleared between and including these two word addresses.
When memory write protect is active, the data table cannot be cleared
except between and including addresses 010-177.

User Program Clear

You can clear all or part of the user program. Perform the following step.

1.

Press [Clear Memory] [8] [8].

The user program is cleared from the cursor position to the first boundary:
temporary end instruction, subroutine area or END statement. Neither the
data table nor messages are cleared.

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