Pilz PNOZ m EF 16DI - Manual (Page 10)

Function description
Operating Manual PNOZ m EF 16DI
1002703­EN­02 10
4 Function description
4.1 Integrated protection mechanisms
The relay conforms to the following safety criteria:
} The circuit is redundant with built­in self­monitoring.
} The safety function remains effective in the case of a component failure.
4.2 Functions
The expansion module provides additional inputs.
The function of the inputs on the safety system depends on the safety circuit created using
the PNOZmulti Configurator. A chip card is used to download the safety circuit to the base
unit. The base unit has 2 microcontrollers that monitor each other. They evaluate the input
circuits on the base unit and expansion modules and switch the outputs on the base unit
and expansion modules accordingly.
The online help on the PNOZmulti Configurator contains descriptions of the operating
modes and all the functions of the PNOZmulti safety system, plus connection examples.
4.3 System reaction time
Calculation of the maximum reaction time between an input switching off and a linked out­
put in the system switching off is described in the document "System Expansion".
4.4 Block diagram
Input
I4 I1 I7 I0 I5 I3 I2 I6
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