Pilz PNOZ ml2p safe link PDP User Manual download pdf (Page 15)

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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]

4-1

4.1 Device properties

4 Function description

44000Function descriptionFunction description4-4.1Device properties4100Device properties4-

4.1.1 Integrated protection mechanisms

Integrated protection mechanisms4-Sicherheitseigenschaften_multi_allgemein

The relay conforms to the following safety criteria:

` The circuit is redundant with built-in self-monitoring.

` The safety function remains effective in the case of a component fail-

ure.

4.1.2 Function description

Function description4-

4.1.2.1 Operation

Operation4-Funktionsbeschreibung PNOZ ml2p

The link module PNOZ ml2p is used to safely transfer the input informa-

tion from decentralised modules to the safety system PNOZmulti.

Funktionen_multi_Basis

The function of the safety system's inputs and outputs 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 cir-

cuits on the base unit and expansion modules and switch the outputs on

the base unit and expansion modules accordingly.

The LEDs on the base unit and expansion modules indicate the status

of the PNOZmulti safety system.

The online help on the PNOZmulti Configurator contains descriptions of

the operating modes and all the functions of the PNOZmulti safety sys-

tem, plus connection examples.

Funktionsbeschreibung PNOZ ml2p_2

Data exchange:

` Communication with the decentralised modules is via a safe data link.

` The link module PNOZ ml2p reads the input information from the de-

centralised modules as part of each cycle and then forwards it to the

base unit.

` At the end of a PNOZmulti cycle, the base unit sends its output data

to its link module. This output data is immediately sent to the decen-

tralised modules.

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Pilz PNOZ ml2p safe link PDP User Manual Page 15