IDEC SmartRelay FL1A-H12RCE, Руководство пользователя

Страница: 79 / 209

IDEC SmartRelay Functions
4-11
IDEC SmartRelay User’s Manual
4.3 Fundamentals of Special Functions
You will notice that special functions differ from general
functions because of the differences in their input
descriptions. Special functions include time functions,
retentivity and various parameterization options to adapt
the program to your individual requirements.
In this section we would like to give you a brief overview of
the input descriptions and provide you with some important
background information about special functions. The
individual special functions are described in Section 4.4.
4.3.1 Description of the Inputs
Connection inputs
The connections that can be made to other blocks or to the
inputs of the IDEC SmartRelay device are described here.
•
S (set):
The input S allows you to set the output to “1”.
•
R (reset):
The reset input R takes priority over all other inputs and
switches outputs to “0”.
•
Trg (trigger):
Use this input to start the execution of a function.
•
Cnt (count):
This input records count pulses.
•
Fre (frequency):
Frequency signals to be evaluated are applied at the
input with this description.
•
Dir (direction):
Use this input to set the direction in which a counter
should count, for example.
•
En (enable):
This input enables the function of the block. If the input
is at “0”, other signals are ignored by the block.
•
Inv (invert):
The output signal of the block is inverted when this input
is activated.