Specifications are subject to change without notice. Pictures are just an example. For special features and/or customization, please ask to our sales network. 07/18
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Filter (ms): This is used to filter the signals coming from the external contacts. 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.
Enable Error Out: If selected reports a fault detected by the function block.
Item description: This allows a description of the component’s function to be entered. The
text is displayed in the top part of the symbol.
SWITCH function block verifies the input
status of a pushbutton or switch (NOT
SAFETY SWITCHES).
If the pushbutton is pressed the output is 1
(TRUE). Otherwise, the output is 0 (FALSE).
Switch
Parameters
Manual reset: If selected this enables the
request to reset each time the device 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.
⇒
WARNING: If the Manual Reset is active, a consecutive Input have to be used. Example:
Input 1 is used for the fuctional block, then Input 2 have to be used for the Reset Input.
Output test: This is used to select which test output signals are to be sent to the switch.
This additional control permits detection and management of any short-circuits between the
lines.
To enable this control, the test output signals must be configured (amongst those available)
CERTUS Installation Manual
