eloProg - Vers. 1.0
62
MOD-SEL (safety selector)
The MOD-SEL function block verifies the status of
the inputs from a mode selector (up to 4 inputs): If
only one input is 1 (TRUE) the corresponding output
is also 1 (TRUE). In all other cases, and thus when
all inputs are 0 (FALSE) or more than one input is 1
(TRUE) all the outputs are 0 (FALSE)
Parameters
Input type
:
-
Double selector – Allows connection of two-way mode selectors.
-
Triple selector – Allows connection of three-way mode selectors.
-
Quadruple selector - Allows connection of four-way mode selectors.
Filter (ms)
: This is used to filter the signals coming from the mode selector. The filter can be
configured to between 3 and 250 ms and eliminates any bouncing on the contacts. The length of
the filter affects the calculation of the unit's total response time
Object description
: This allows a description of the component's function to be entered. The text is
displayed in the top part of the symbol.
PHOTOCELL (safety photocell)
The PHOTOCELL function block verifies the status of
the inputs of an optoelectronic safety photocell. If the
beam of the photocell is occupied (photocell output
FALSE) the output is 0 (FALSE). Otherwise with the
beam clear and an output of 1 (TRUE) the output is 1
(TRUE).
Parameters
Enabled reset
: If selected this enables the request to
reset each time safety photocell is activated.
Otherwise, enabling of the output directly follows the
input conditions.
There are two types of reset: Manual and Monitored. When Manual is selected the system only
verifies the signal's transition from 0 to 1. If Monitored is selected the double transition from 0 to 1
and then back to 0 is verified.
