Settings
Types of
settings
There are two types
of settings:
1.
Settings window linked to LAD program.
2.
Settings file, independent
In the first case
settings are made for the active LAD program window to store the
program data.
In the other case
file (or files) of different names can be created manually and they
can be loaded to the relay memory to replace the former
settings.
This is advisable if you want to change the Timers’ times
without changing the program. The new settings can be entered by
editing the file without the need to perform a search in the
program.
Note: Settings file is loaded
independently from the program. By default, a program and,
subsequently, settings related to it are loaded it in the PC NEED
program for the LAD editor.
Automatic loading of
settings can be disabled by using the following menu
options: Configuration > LAD project.
Fig. 1. LAD project configuration.
If the LAD program-related “Settings” file is
not loaded, the program in the relay will be executed using recent
settings present in the relay.
After the reset they will be: the maximum values of Timers
and Counters, reset Clocks, no remanence and enabled input
delays.
LAD program-related
settings
In
order to access Settings in the LAD program edition click the icon
in the toolbar or alternatively select Device > Settings
(or press F10 key). Fig. 2. illustrates the result of executing
that command and editing the Timer 1 (SE mode, time:
1s).
Fig. 2. LAD-related settings.
In
order to create a new SET file select New in the File
menu and check Settings in the Create new project
window and select the relay type.
LAD program-related
settings are saved automatically when saving the
program.
Settings created manually must be saved, as in the case of
LAD or STL, and named
Fig. 3. Newly created settings file
(SET).
The default extension of the Settings file saved to the
disc is “*.set”.
The basic differences between the LAD program-related
settings and the manual file of Program1.set are presented
below.
Fig. 4. Differences in settings.
The Settings window associated with the
LAD program can only be closed using 
, while the SET file has also the icons 
.
Except for the name and association the edition
of settings is identical as it consists in filling the described
fields or selecting values from drop-down menus.
Type of variables to be set can be selected by
using the tabs:
Timer
settings
Select the Timer number, assign a range to it
(hours:minutes, minutes:seconds, seconds:milliseconds x 10) and
enter the set time value in the editable fields.
Fig. 5. Settings of Timers.
Clock
settings
Select the Clock
number (H1..H4) and edit the selected channels A..D by setting week
days, hours and minutes.
Fig. 6. Clock settings
Counter
settings
Select the Counter
number and enter the value to be counted.
Fig. 7. Counter settings.
Comparator
settings
Select the Comparator number and assign a comparison type
to it, and enter the voltage value in volts for the comparisons
with the permanent value.
Fig. 8. Comparator settings.
Remanence
The variable to be
remanent is selected by selecting the variable check box
(Fig. 9. - M1, T5 , T6 and C8 were selected as
remanent).
Fig. 9. Remanence settings.
Input
delays
If the input is to be
scanned without a delay its checkbox must be deselected (I7..I13
input in Fig. 10. will not be delayed).
By
default inputs have their checkboxes selected – input delay is
on.
Fig. 10. Input delay settings