Omron ZEN Manual de usuario
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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