PROFINET Features


PROFINET Media Redundancy + Media Redundancy

The redundant title of this article is your first clue to the topic of this article: PROFINET media redundancy. PROFINET media redundancy is optional with all conformance classes, but in some applications it is critical for correct operation (for example, hot backup in a safety application).  PROFINET offers network media redundancy through a ring topology. PROFINET has two main media […]


Process Automation Background

Process Industry Automation history The “Process Industry” includes the waste water treatment, food & beverage, chemical, oil & gas, and pulp & paper industries. In the past, plant operators had to physically monitor performance values and the quality of outputs to determine the best settings on which to run production equipment. Process automation simplified this with the help of sensors at thousands […]


PA (Process Automation) Basics

What are the components of a PA network? PROFIBUS PA ( Process Automation) was designed to work along with PROFIBUS DP (Decentralized Periphery) to make a consolidated network using DP for high-speed communications and PA for for process environment. A network consists of a DP master (controller), a DP segment, a DP/PA coupler and the process network with slave devices. Fast […]


PA Profile for PROFINET

What is the PROFINET PA profile? PA networks are designed to be operated as process  “islands” within a larger PROFIBUS DP controlled network. The total network could consist of several of these “islands” all controlled by a single PLC/DCS. Each PA “island” starts with the DP/PA coupler which acts as the PA master and consists of several PA devices on […]


PROFINET Proxies and Gateways

Fieldbus solutions have been in place for decades in most industries, and there’s an incredible amount of knowledge built up around them.  Everything from PROFIBUS to DeviceNet, from 4-20 loops to MODBUS RTU… engineers just graduating with their B.S. degrees were born after most of these automation systems were developed! Migrating these solutions to PROFINET is a common challenge.  Every […]


Wireless PROFINET overview

A great advantage of PROFINET over some other competing automation networks is the included support in the specification of wireless technology and most importantly the Industrial features available. This opens up a wide variety of applications which are very difficult or impossible when it comes to normal copper cabling.  Some of these applications might be Automated Guided Vehicles (AGVs), slip rings, a rough environment, shipping and […]