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PHOENIX CONTACT 109241_en_03
5.1.2.13 S-MAT function block (safety mat)
The “S-MAT” function block checks the status of the “I
N” inputs of a safety mat (short-circuit
principle). When someone steps onto the safety mat, the “O
UT” output signals logic “0”. The
output is logic “1” when no one is on the safety mat.
Figure 5-41 “S-MAT” function block (safety mat)
This block requires the use of the PSR-M-EF3 module.
NOTE:
The “S-MAT” function block must not be used with 2-wire safety mats and a termination
resistor.