Omron ZEN Manuale utente

OMRON ELECTRONICS, S.A. Page 1

ZEN

Quick Guide

THIS MANUAL CONTAINS:

1 FEATURES

2 FUNCTIONALITY

3 HANDLING THE EQUIPMENT

4 CONNECTIONS

5 I/O ADDRESSING

6 CREATING A PROGRAM

7 PROGRAMMING FUNCTIONS

8 TROUBLESHOOTING

9 ACCESSORIES

1 Features ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 2

1 Features

The ZEN programmable logic module provides a total of 10 I/O points (6

inputs and 4 outputs). It has two types of controllers:

LCD type: with display screen and keypad.

LED type: without display screen and without operating keypad.

1.1 Main Features

The following are some of the most important features:

•Capacity to carry out small scale automatic control at low cost.

•Ladder diagram programming directly in the LCD type CPUs is possible.

•Maximum program capacity of 96 lines.

•Very small dimensions: 90 x 70 x 56 mm.

•Easy to set up and reduced wiring time.

•Upgradable up to 18 inputs and 16 outputs using 3 expansion modules.

•Protection against power supply faults (battery optional).

•Programs easily copied using optional memory cassette.

•Programming and monitoring by computer.

•Large switch capacity up to 8A /contact with 250 VAC.

•Direct AC inputs between 110 and 240 VAC.

•Equipped with 8 configurable timers in 4 operating modes and 3 timer

ranges.

•Also equipped with 8 counters which can work either inclined or declined.

•Clock-calendar functions.

•2 analog inputs in voltage mode (0 to 10 V).

•Possibility of configuring input filters to avoid noise influence.

•The program can be protected by a password.

•Screen menus displayed in 6 languages.

1.2 External Appearance

Output relays

Expansion

connector

Function keypad

•Peripherals port

•EEPROM memory cassette

LCD screen

InputsPower supply

1 Features ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 3

Output relays

Expansion

connector

•Peripherals port

•EEPROM memory cassette

InputsPower supply

2 Functionality ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 4

2. Functionality

The display screen for the LCD type CPU and the different ZEN operation

buttons are as follows:

A series of icons giving information about the controller can be activated in the

display. The meaning of these icons is given in the following table:

Icon Meaning

RUN Displayed on screen when in RUN mode

ERR Shows an error

"Displayed on screen when there is a higher level on the menu or

in the ladder program

#Displayed on screen when there is a lower level on the menu or in

the ladder program

Displayed on screen when the password has been activated

Function keypad

FunctionKey Menu Overwriting the program Parameter Settings Associated

bit

DEL --- Deletes inputs, outputs,

connection lines and blank lines --- B6 to ON

ALT --- Switchs to normally open and

normally closed conditions. --- B7 to ON

Up B5 to ON

Down Moves the

cursor up and

down

Moves the cursor up and down.

Selects bit types and functions. Moves the cursor up and down.

Changes numerals and

parameters B2 to ON

Left B3 to ON

Right --- Moves the cursor to the right

and left Moves the cursor to the right

and left B4 to ON

ESC Returns to

previous screen Cancels operations carried out

and returns to the previous

operation

Cancels operations carried out

and returns to the previous

operation

B0 to ON

OK Enters the

menu selected Confirms the settings Confirms the settings B1 to ON

LCD

DEL button

ESC button

ALT button

OK button

3 Handling the Equipment ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 5

3. Handling the Equipment

This section describes the handling of the display menu and its different

options, such as protecting ladder programs, installing filters on inputs,

adjusting the display contrast, setting the clock to summer time, etc.

3.1. Main Menu

The following screen is displayed as ZEN receives the power supply:

In the case of any expansion module being connected, pressing the ESC key

will monitor the status of the expansion bits.

Day Time (min:s)

Operating mode

Day Time (min:s)

Operating mode

3 Handling the Equipment ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 6

The main menu is displayed by pressing the OK key on the initial screen, as

shown below:

3.2. Selecting the Language

The ZEN menu is available in 6 languages, which can be selected as follows

(the default language is English)

3.3. Date and Time

Access to the date and time settings window can be gained by following the

menu sequence shown below:

The Up/Down keys switch from the

menu window to other options.

Select LANGUAGE and press OK. By doing this,

the language selection screen is displayed and by

pressing the OK key again, the language flashes,

making it possible to select another language

using the cursors.

Once the language has been selected, press OK

and this confirmation window will appear.

3 Handling the Equipment ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 7

3.4. Protecting Programs

ZEN has a password function, used to prevent incorrect use of the ladder

program or to prevent manipulation of settings made by the controller.

The password code may comprise the range 0000 to 9999 (4 decimal

numbers).

The password prevents entry to the following points:

•Editing ladder programs

•Monitorng ladder programs

•Changing or erasing the password

•Setting the input filter

•Setting the node number

The Password screen is displayed immediately any of the different options is

selected from the menu. If the password is correct, access to the screen

requested will be given. If not, access will be denied.

3.5. Setting a Password

Select OTHER on the main menu and then the

PASSWORD option.

Press the OK key so that the cursor flashes and

the password can then be entered

Set the Password.

Use the Left and Right keys to select the

digits that need to be changed.

Use the Up/Down keys to enter numbers

from 0 to 9.

Press the OK key. A confirmation message

will be displayed on the screen

The key symbol will be displayed in the

bottom left-hand corner of the screen when

the password has been recorded.

3 Handling the Equipment ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 8

3.6. Deleting Registered Passwords

3.7. Stabilizing Input Operations

If the ZEN external input fluctuates, it is possible that the operations will be

unstable. To solve this, ZEN is able to filter inputs to stablilize the signal.

The input filters can be set separately, either for the CPU inputs or for each

I/O expansion unit.

Press the OK key so that the cursor flashes

and then enter the password.

Enter the recorded password.

Use the Left and Right keys to change the

numbers of the new password

Use the Up/Down keys to enter numbers

between 0 to 9.

Press the OK key to display the message on

screen confirming deletion of the password.

If the input password does not match to the

original, the display will return to the

previous screen.

If the password is correct, press the OK key

to delete.

They key icon will disappear when the

password has been deleted.

If the input password does not match to the

recorded password, a ‘CHECK ERR’

message will appear on screen. The

password must be reentered.

3 Handling the Equipment ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 9

Note. The input filter time settings are as follows:

Input specifications Input filter

not used Input filter

used

100 Vac 50 ms 70 msAC Input 240 Vac 100 ms 120 ms

DC Input 15 ms 50 ms

The input filter settings are read when ZEN starts the operation.

3.8. Backlight

The LCD backlight is automatically activated when the operation keys are

used. Depending on the setting (see below for more details), this light will

switch itself off 2, 10 or 30 minutes after the function keys have stopped being

used. The backlight can also be left activated (setting always in ON mode).

Press the OK key to display the input

filter setting menu.

Use the Up/Down keys to select from

the Menu the unit for which the input

filters will be set.

Press the OK key twice to make the

cursor flash, activating the input filter.

Use the Up/Down keys to switch

between ON/FF.

Press ON to confirm the settings.

Press ON again to complete the

settings.

3 Handling the Equipment ZEN Programmable Logic Module

OMRON ELECTRONICS, S.A. Page 10

3.9. Adjusting LCD Screen Contrast

Use the following procedure to adjust the LCD contrast when it is difficult to

view the screens.

Press the OK key to view the current

contrast setting. This will be displayed in

the form of a bar graph (5 levels).

A blank level shows that this setting has

not been reached.

Press the OK key again to a flashing cursor

to vary the contrast. The contrast setting

can be changed using the Up/Down or

Right/Left keys.

Pressing the OK key once again requests

confirmation of the new setting. If pressed,

it will be confirmed. Pressing the ESC key

will exit the Contrast Menu with no

changes being made.

Press the OK key to display the current

backlight time.

Press the OK key again to a flashing

cursor to change this time.

Use the Up/Down keys to select

activation time.

Press the OK key to confirm the

settings. Press again to complete

the settings.

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