Siemens S7-300 Installation And Operating Manual page 339

PROFIBUS
PROcess FIeld BUS, German process and fieldbus standard to IEC 61784-1:2002 Ed1
CP 3/1. It defines the functional, electrical and mechanical properties of a bit-serial fieldbus
system.
PROFIBUS is available for the protocols DP (= distributed I/O), FMS (= fieldbus message
specification), PA (= process automation), or TF (= technological functions).
PROFINET
Within the framework of Totally Integrated Automation (TIA), PROFINET is the consistent
continuation of:
PROFIBUS DP, the established fieldbus, and
● Industrial Ethernet, the communication bus for the cell level.
● The experiences of both systems were and will be integrated in PROFINET.
PROFINET as Ethernet-based automation standard from PROFIBUS International (formerly
PROFIBUS Nutzerorganisation e.V.) defines a communication, automation and engineering
model across manufacturers. PROFINET has been part of the IEC 61158 standard since
2003.
PROFINET IO
Within the framework of PROFINET, PROFINET IO is a communication concept for the
implementation of modular, distributed applications.
PROFINET IO allows you to create automation solutions familiar from PROFIBUS.
PROFINET IO is implemented based on both the PROFINET standard for automation
devices and the STEP 7 engineering tool. This means that you have the same application
view in STEP 7, regardless of whether you are configuring PROFINET or PROFIBUS
devices. Programming your user program is essentially the same for PROFINET IO and
PROFIBUS DP if you use the expanded blocks and system status lists for PROFINET IO.
PROFINET IO Device
A PROFINET IO device is a decentralized field device that is assigned to one of the IO
controllers (e.g., remote IO, valve terminals, frequency converters, switches).
PROFINET IO Controller
A PROFINET IO controller is a device that is addressed via the connected IO device. That is:
that the IO controller exchanges input and output signals with assigned field devices. The IO
controller is often the controller on which the automation program runs.
PROFIsafe
PROFIsafe is the safety-oriented PROFIBUS DP/PA bus profile for communication between
the → safety program and the → F-I/O in an → F-system.
Fail-safe signal modules
Installation and Operating Manual, 01/2010, A5E00085586-10
Glossary
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