Function Description
Operating Manual PNOZ m EF SafetyNET
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Function Description
4.1
Integrated protection mechanisms
The relay meets the following safety requirements:
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The circuit is redundant with built-in self-monitoring.
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The safety device remains effective in the case of a component failure.
4.2
Functions
The expansion module PNOZ m EF SafetyNET is used for safe data exchange between
several SafetyNET p subscribers via SafetyNET p RTFL.
The safe virtual inputs and outputs that are defined via SafetyNET p are selected and con-
figured for each PNOZmulti 2 system in PNOZmulti Configurator. Inputs and outputs are
assigned to the SafetyNET p subscribers in the software tool PNOZmulti Network Editor.
The LEDs on the base unit and expansion modules indicate the status of the configurable
control system PNOZmulti 2.
You can find a description of the configuration in the PNOZmulti Configurator online help
and in the PNOZmulti Network Editor online help.
Data exchange:
Communication can start when all the configured SafetyNET p subscribers are available.
Communication is ended when a SafetyNET p subscriber ends its participation (is in stop
state).
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Data is exchanged cyclically
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After the end of a PNOZmulti 2 cycle, each PNOZmulti 2 base unit sends its output data
to the module PNOZ m EF SafetyNET.
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Within the next cycle, the output data are transferred to all the participating modules
PNOZ m EF SafetyNET.
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At the beginning of a cycle of PNOZmulti 2 each base unit requests its input data from the
module PNOZ m EF SafetyNET an.
SafetyNET p network:
Every PNOZmulti 2 base unit is assigned an expansion module PNOZ m EF SafetyNET.
Up to 16 SafetyNET p subscribers can be connected via SafetyNET p in a line structure.
The SafetyNET p subscribers are interconnected in a linear topology. That is, all the
SafetyNET p subscribers are combined without branches. However, the wiring sequence
has no influence on communication.
Virtual inputs and outputs:
For each module, 32 safe outputs and 128 safe inputs can be defined. Inputs and outputs
to the communicating SafetyNET p subscribers are assigned in the PNOZmulti Network Ed-
itor.
