Siemens SIMATIC ET 200SP HA System Manual page 139

PROFIBUS
PROcess FIeld BUS, process and fieldbus standard that is specified in IEC 61158 Type 3. It
specifies functional, electrical and mechanical properties for a bit-serial fieldbus system.
PROFIBUS is available with the following protocols: DP (= Distributed Periphery), FMS (= Fieldbus
Message Specification), PA (= Process Automation) or TF (= Technological Functions).
PROFINET
PROcess FIeld NETwork, open industrial Ethernet standard which continues PROFIBUS and
Industrial Ethernet. A cross-manufacturer communication, automation and engineering model
by PROFIBUS International e.V., defined as an automation standard.
PROFINET IO controller
Device used to address connected I/O devices. This means: The IO controller exchanges input
and output signals with assigned IO devices. The CPU is often an IO controller.
PROFINET IO
Communication concept for the realization of modular, distributed applications within the
scope of PROFINET.
PROFINET IO device
Distributed field device which may be associated with one or more IO controllers (e.g. distributed
I/O system, valve terminals, frequency converters, switches).
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.
Push-in terminal
Terminal for the tool-free connection of wires.
Reference identification
In accordance with EN 81346, a specific object is clearly referenced in relation to the system to
whose components the object belongs. Thus, unique identification of the modules in the entire
system is possible.
Modules for devices in a hazardous area
System Manual, 04/2021, A5E50165138-AA
Glossary
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