Omron Sysmac WS02-CXPC1-EV3 Operation Manual Download Page 103

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PART 1: CX-Programmer

OMRON

CHAPTER 4 – Reference

CX-Programmer _Page 77

Use the following procedure to set the PLC’s clock.

1, 2, 3…

1. Select the PLC object in the project workspace to display the Ladder program in the

Diagram Workspace.

2. Select

the

Work On-line

button from the toolbar. A confirmation message is displayed;

select the

Yes

pushbutton to connect to the PLC.

3. If the PLC has a clock, the project workspace will show a PLC Clock icon. Double-click

this to show the CX-Server clock dialogue.

Refer to the

CX-Server PLC Tools User Manual

for further information on setting the PLC clock.

Applying a Password to the PLC

The C-series PLCs and CS/CJ-series PLCs support use of a single password to protect an individual PLC. The
CV-series PLC supports two passwords that provide either system (overall) or partial protection (protecting
specific programs on a PLC). For password information relating to a specific PLC, refer to that PLC’s user
manual.

When enabled, the password is required every time the protected program or PLC is accessed.

The password can be released if necessary, for example, if a new PLC is being created and details need to be
uploaded from a protected PLC/program to be copied into the new PLC.

Use the following procedure to apply a password to the PLC.. This facility is only available when the PLC is
on-line. Note that for the C-Series PLCs this is done via FUN(49) and after the program is protected, select

Protection Write Protect

from the

Transfer

menu to set and release the protect.

1, 2, 3…

1. Select the PLC object in the project workspace.

2. Select

the

Show Properties

button from the toolbar. The PLC Properties dialogue is

displayed.

3. Display

the

Protection

tab of the PLC Properties dialogue.

4. Enter a password; this has a maximum of eight characters for CS/CJ-series PLCs or

entered as an operand of FUN(49) instruction.

5. To release the password, delete the entry from this field.

6. Select

the

Close

button from the title bar to close the dialogue.

7. Select

the

Set Password

button from the toolbar to enable protection for the PLC. The

Set Program Protection dialogue is displayed. Select the items to apply protection to in
the

Items to Set

field. Select the

pushbutton to accept the settings or select the

Cancel

pushbutton to abort the operation.

8. Select

the

Release Password

button from the toolbar to disable protection for the PLC.

The Release Program Protection dialogue is displayed. Select the items to release
protection to in the

Items to Release

field. Select the

pushbutton to accept the settings

or select the

Cancel

pushbutton to abort the operation.

Refer to

Chapter 5 - Advanced Topics

for further information.

Note:

The user program, Parameter Area, and I/O Memory in the CPU Unit can be cleared to
initialize the CPU Unit by selecting

Clear All Memory Areas

from the CX-Programmer's

PLC

menu or selecting

Clear All Memory Areas

from the

Options

menu of the PLC Errors

dialog box.

These operations are possible even if a memory error has not occurred in the PLC (the same as
they are for a Programming Console).

Flash ROM Backup

CX-Programmer supports the Monitoring function of Flash ROM Backup for the CS1x-H series of PLCs.
When a backup is started for a CS1x-H PLC the Backup Monitor dialog is displayed automatically in online
mode, when the option

‘Display Backup Monitor Dialog automatically’

is selected on the PLC Properties dialog.

It can also be invoked manually from the

View | Windows | PLC Memory Backup Status

option.

The dialog is an information only dialog (or modeless) thereby enabling other operations to be executed during
the backup process.