WAGO-I/O-SYSTEM 750
Glossary 157
750-666/000-003 4FDI/2FDO 24V/10A PROFIsafe V2 iPar
Manual
Version 1.2.0, valid from HW/SW Version 01/01
P
Passivate, passivation
Passivation of safe digital inputs or power outputs is performed automatically by
the PROFIsafe I/O module after activation or detection of errors. Operator
acknowledgement is required after passivation, so that the PROFIsafe I/O module
can start.
PE (Protective Earth)
The PE is connected to the ground connector according to EN 60204-1 and is used
as fundamental protection against electric shock when touched indirectly. It is also
used to reduce the effect of electrical interference on electrical equipment that
affect operation of a machine or system.
PFD (Probability of Failure on Demand)
The safety parameter PFD specifies the probability of a dangerous failure.
PFH (Probability of dangerous Failure per Hour)
The safety parameter PFH specifies the probability of a dangerous failure within
one error.
PL (Performance Level)
The Performance Level PL specifies the capacity of safety devices to execute a
safety function under foreseeable conditions.
PROFIsafe
Safety-oriented data communication via the standard PROFIBUS or PROFINET
(black channel). A distinction is made between V1 mode and V2 mode.
PROFIsafe-V1-Mode according to IEC 61784-3-3
PROFIsafe V1 mode - services and protocols of safety-oriented communication
profile PROFIsafe according to PROFIBUS Guideline: PROFIsafe – Profile for
Safety Technology, V1.30, from June 2004.
PROFIsafe-V2-Mode according to IEC 61784-3-3
PROFIsafe V2 mode - services and protocols of safety-oriented communication
profile PROFIsafe according to PROFIBUS Guideline: PROFIsafe – Profile for
Safety Technology, V2.4, from March 2007
PROFIsafe address
Address that must be assigned to a safe device with PROFIsafe data
communication, so that data communication can be established between a
PROFIsafe master and a PROFIsafe slave.