Pilz PNOZ mml1p - Manual (Page 15)

Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-1
4.1 Device properties
4 Function Description
4 4000 Function Description Function Description 4- 4.1 Device properties 4100 Device properties 4- 4.1.1 Integrated protection mechanisms
Integrated protection mechanisms 4- 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 description 4-
4.1.2.1 Operation
Operation 4- Funktionen_multi_Verbindungsmodul_l1p_1
The link module PNOZ mml1p is used to safely transfer the input infor-
mation from 32 virtual inputs and 32 virtual outputs between two PNOZ-
multi systems. One link module is assigned to each base unit. Data is
exchanged cyclically.
Funktionen_multi_Basis
The function of the inputs and outputs on the control 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 in-
put circuits on the base unit and expansion modules and switch the out-
puts on the base unit and expansion modules accordingly.
The LEDs on the base unit and expansion modules indicate the status
of the configurable control system PNOZmulti.
The online help on the PNOZmulti Configurator contains descriptions of
the operating modes and all the functions of the PNOZmulti control sys-
tem, plus connection examples.
Funktionen_multi_Verbindungsmodul_l1p_2
Data exchange:
 Data is exchanged cyclically.
 After the end of a PNOZmulti cycle, each base unit sends its output
data to its link module. This output data is immediately sent to the link
module on the other base unit.
 At the same time, the base unit reads the input data from the link
module.