Intermediate


What is an Application Profile?

PROFIsafe, PROFIdrive, PROFIenergy… these terms are pretty common in the PI world. How are they used in the real world? And how do they actually work? What is the definition of an application profile?


PROFIdrive Application Profile

What is PROFIdrive? PROFIdrive is an vendor neutral application profile from PROFIBUS and PROFINET International (PI) which is focused on drives, encoders, motors, and their applications, which range from simple to very demanding motion control tasks.  It supports both PROFIBUS and PROFINET technologies.  PROFINET allows scalable update times starting from 31.25μs and a jitter of less than 1μs for the most […]


The PROFIenergy Profile

After learning about what profiles are, it’s time to take a look at one of the several profiles for PROFINET. PROFIenergy is one of the easiest profiles to implement across a range of devices, from cameras to motors. Why PROFIenergy is a big deal PROFIenergy operates as a programming API, allowing application engineers to use common code blocks in PLCs […]


Industrial Safety: PROFIsafe Profile Overview

What is PROFIsafe? PROFIsafe (PROFINET safety) is a safety communication technology for discrete manufacturing and process automation systems. It was developed by PROFIBUS / PROFINET International (PI) to meet Functional Safety requirements for PI communication technologies (PROFINET, PROFIBUS, and PROFIBUS PA).  As we talked about in Safety Basics, the PROFIsafe role in the safety universe is to minimize the chance of incorrect functioning of the control system. Incorrect […]


PROFIsafe Profile Details, Industrial Safety

PROFIsafe profile details are incorporated into the PROFIsafe driver firmware in both an F-Controller and an F-device. The PROFIsafe driver is an encoding/decoding package that ensures the integrity of the safety portion of the communication. What problems can affect communications? The following errors are potential problems in network communications. Repetition – malfunction of a bus device causes old and obsolete safety messages to be repeated at the wrong […]


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 […]


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 […]


PROFIBUS and PROFINET Troubleshooting

One of the strengths of fieldbuses and industrial Ethernet protocols in general, and Profibus and Profinet in particular, is the diagnostic information. This diagnostic information can prevent downtime and accelerate Profinet troubleshooting. First, an explanation of the technologies: Profibus and Profinet International (PI) created, support, and maintain the Profibus and Profinet standards. Both specifications are part of IEC 61158. Profibus […]


PROFINET Diagnostics Suite – Part 1 of 3

In the automation environment of today and tomorrow, end users need a system which is built with effective diagnostic capabilities and is easy to manage at both the network and application levels for minimum downtime and increased productivity. PROFINET should be your network of choice because it has best in class diagnostic mechanisms which are in short:  ‘suite and simple’. The […]


PROFINET Diagnostics Suite – Part 2 of 3

In Part One of this series, we discussed how PROFINET leverages IT protocols such as Simple Network Management Protocol (SNMP), File Transfer Protocol (FTP) and Hyper Text Transfer Protocol (HTTP) to provide easy configuration and diagnostics over the network.  Now in part two, we’ll cover PROFINET device naming, PROFINET Discovery and Configuration Protocol (DCP), and Link Layer Discovery Protocol (LLDP). […]


PROFINET Diagnostics Suite – Part 3 of 3

In part one of this series, we discussed how PROFINET leverages IT protocols such as Simple Network Management Protocol (SNMP), File Transfer Protocol (FTP), and Hyper Text Transfer Protocol (HTTP) to provide easy configuration and diagnostics over the network.  In part two, we covered PROFINET device naming, PROFINET Discovery and Configuration Protocol (DCP), and Link Layer Discovery Protocol (LLDP), which […]