Communication Via Profinet Io; General Information About Profinet Io - Siemens SINAMICS S120 Function Manual

Communication

10.3 Communication via PROFINET IO

10.3 Communication via PROFINET IO
10.3.1

General information about PROFINET IO

General information
PROFINET IO is an open Industrial Ethernet standard for a wide range of production and
process automation applications. PROFINET IO is based on Industrial Ethernet and
observes TCP/IP and IT standards.
Deterministic signal processing in real time is important in industrial networks. PROFINET IO
satisfies these requirements.
The following standards ensure open, multi-vendor systems:
● International standard IEC 61158
PROFINET IO is optimized for high-speed, time-critical data transfers at field level.
PROFINET IO
Within the context of Totally Integrated Automation (TIA), PROFINET IO is the systematic
development of the following systems:
● PROFIBUS DP, the established fieldbus,
● Industrial Ethernet, the communications bus for the cell level.
Experience gained from both systems was integrated into PROFINET IO. PROFINET IO as
the Ethernet-based automation standard from PROFIBUS International (PROFIBUS User
Organization e.V.) defines a cross vendor communications and engineering model.
PROFINET IO defines every aspect of the data exchange between IO controllers (devices
with what is known as "master functionality" and the IO devices (those with what is known as
"slave functionality") as well as carrying out parameterization and diagnostics. A PROFINET
IO system is configured in virtually the same way as a PROFIBUS system.
A PROFINET IO system is assembled from the following devices:
● An IO controller controls automation tasks.
● An IO device is controlled and monitored by an IO controller. An IO device consists of
● An IO supervisor is an engineering tool, typically based on a PC, with which the individual
760
several modules and submodules.
IO devices (drive units) are parameterized and diagnosed.
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions