Siemens SIMATIC ET 200SP System Manual page 263

PROFINET IO
Communication concept for the realization of modular, distributed applications within the
scope of PROFINET.
PROFINET IO device
Distributed field device that can be assigned to one or more IO controllers (e.g. distributed
I/O system, valve terminals, frequency converters, switches).
PROFIsafe
Safety-oriented PROFINET I/O bus profile for communication between the → safety program
and the → F-I/O module in a → fail-safe system.
PROFIsafe address
Every → fail-safe module has a PROFIsafe address. You have to configure the PROFIsafe
address.
PROFIsafe monitoring time
Monitoring time for safety-related communication between the F-CPU and F-I/O
Proof-test interval
Period after which a component must be forced to fail-safe state, that is, it is either replaced
with an unused component, or is proven faultless.
Provider-Consumer principle
Principle of data communication on the PROFINET IO: in contrast to PROFIBUS, both
parties are independent providers when sending data.
P-switch
→ M-switch
Push-in terminal
Terminal for the tool-free connection of wires.
Redundancy, availability-enhancing
Multiple instances of components with the objective of maintaining component functionality in
the event of hardware faults.
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
Glossary
263