EUCHNER MSC, Operating Instructions, Installation And Use

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Operating Instructions
Modular Safety Control System MSC
108
(Translation of the original operating instructions) 2121331-04-04/19
9.2.2.13. Pressure sensitive mat (S-MAT)
Using the pressure sensitive mat function block the input status of a pressure sensitive mat is checked. If there is a person
on the footmat, the OUTPUT output is "0" (FALSE), otherwise, i.e. if the footmat is clear, the OUTPUT output is "1" (TRUE).
Figure 107: Pressure sensitive mat
Parameter
Manual Reset: If selected, a reset can be requested on every activation of the pressure sensitive mat. Otherwise the activation
of the output follows the input conditions directly.
There are two types of reset: "Manual" and "Monitored". On the selection of the manual reset, the system only checks the
signal transition from 0 to 1. With the monitored reset the double transition from 0 to 1 and then back to 0 is checked.
Important!
¨
If manual reset is selected, the next input after the inputs used by the function block must be used.
Example: If Input1 and Input2 are used for the function block, Input3 must be used for the reset input.
¨
The usage of two test outputs is obligatory. Each OUT TEST output can only be connected to one
pressure sensitive mat input (it is not allowed to connect two inputs in parallel).
¨
The pressure sensitive mat function block cannot be used for two-wire components or terminating
resistors.
Manual Monitored
Figure 108: Pressure sensitive mat manual/monitored reset
Figure 109: Connection example, pressure
sensitive mat