PROFIdrive

PROFIdrive is a powerful and mature drive control profile for any kind of application and industry usage.


This profile is standardized in IEC 61800-7 (Generic interface and use of profiles for power drive systems) as well as GB/T 25740 and hosted by Profibus & Profinet International (PI), which guarantees international present professional support around the globe.

 

Due to its modular structure and manufacturer-independent device profile, PROFIdrive is easy to handle, highly scaleable by its granular six-level structure and defined to achieve an utmost interoperability level. Safeguarded by well-defined certification tests, global technology support and easy implementation procedures.


Another huge advantage is the complete upper OSI layer implementation (level 5-7), which makes this profile independent from any changes at lower layers technology and therefore real future proof.

 

By nature PROFIdrive comes always along with perfect interplay of all other PROFINET profiles like PROFIsafe and PROFIenergy.

The supported VIK/NAMUR drive interface according to VE34/NE122 offers in particular the advantage of a "device exchange without engineering interaction" based on a specifically defined and provided VIK/NAMUR profile GSD file.

Especially this feature underlines the general architecture and vendor independent nature of PROFIdrive architecture and communication structure.

 

In this way, PROFIdrive allows flexible, manufacturer-specific design of drive products to meet particular market requirements.

 

PI offers a wide range of options for implementation support, interoperability test and certification options. This incorporates the invitation to participate in future profile enhancements and further standardization work.

Benefits

Since more than a decade, PROFIdrive is the approved international IEC standardized drive interface.

For details please refer to IEC standard 61800-7 "Generic interface and use of profiles for power drive systems“.

In 2013, PROFIdrive was standardized in China as GB/T 25740 national standard. Overall PROFIdrive is recommended by various international institutions such as OMAC and VIK NAMUR.

The supported VIK/NAMUR drive interface according to VE34/NE122 offers in particular the advantage of a "device exchange without engineering interaction" based on a specifically defined and provided
VIK/NAMUR profile GSD file.

The successful admission of PROFINET and PROFIdrive in internationally recognized standards over many years and the close cooperation with key institutions in the industrial sector ensure that this
profile can continue to present itself as innovative and future-proof.

One of the major strengths of PROFIdrive is the optimal interoperability and exchangeability offered for all the motion control applications.

This strength also includes the safety functions, which are becoming increasingly important.

Device Profiles describe specific device properties that have been jointly specified by device manufacturers for uniform implementation into their devices.

Devices with the same device profile will - irrespective of the manufacturer - exhibit the same behavior on a bus system.

The importance of such interfaces is increasing with respect to the enormous data quantities that are being exchanged as the degree of automation advances.

PROFIdrive covers all application classes (AC) in the industry.

In industry, there is an enormous variety of drive products required to cover the complete range of applications and consequently there exists a very broad spectrum of specification profiles for drives.
To allow perfect implementation scaling PROFIdrive defines up to six application classes. From simple single axis up to multi axis and high demanding drive use cases.

Based on this approach PROFIdrive allows a flexible, cost efficient and specific market segment compliant device implementation.

There is also the freedom to use certain manufacturer add-ons to differentiate with specific drive products and implement unique selling features for competitive edge advantage.

Due to the ISO/OSI layer 5-7 implementation the PROFIdrive device features are independent from the transmission properties on layers 1-4 below. 

 

Adaption at lower OSI layers can be established without impact on PROFIdrive, like for instance a later Time Sensitive Network (TSN) enhancement.

 

This specific design approach makes PROFIdrive independent and real future proof.

In addition to traditional drive functions such as speed, position and motion control, drives are integrating more and more additional functions that were previously implemented externally and are nowadays becoming an integral part of the drive.

Two typical examples of this are drive-based safety technology and energy management functions. 

These additional drive functions require new communication relationships with additional communication profiles. Drive technology is therefore a typical example of PROFIBUS and PROFINET devices that not only support their original application profile but also other additional profiles (common application profiles).

To ensure smooth interaction between these additional functions and the basic PROFIdrive functions, definitions and specifications regarding this interaction have been included in PROFIdrive.

PROFIsafe

Integration of safety technology into the drive is beneficial because it eliminates the need for external monitoring devices, thereby reducing engineering effort, wiring expenses and space requirements. 

 

From this point of view, the PROFIdrive and PROFIsafe profiles are the perfect complement to one another. 

 

Together, the two profiles create a harmonious unit that enables the same bus to be used to control safety functions and standard drive functions.

PROFIenergy

Electric drives account for a large portion of industrial power demand. With continuously rising energy prices, this cost factor is driving up production costs more and more. 

On the positive side: this represents an enormous savings opportunity for practically all companies. Especially in high energy-consuming areas, significant savings are possible using energy-efficient drives and intelligent energy management.

This is where PROFIenergy comes in by providing a uniform, device-/vendor-neutral interface for controlling energy saving functions in PROFINET devices.

  • Regional PI Associations:

    Organize regional support of PROFIBUS and PROFINET and localized marketing activities.

  • PI Competence Centers:

    Provide high-quality technical support for developers and users of PROFIBUS and PROFINET products and systems.

  • PI Training Centers:

    Offering high level and comprehensive training environement to engineers and users.

  • PI Test Labs:

    Provide wide spread test and certification services to ensure highest quality and performance of PROFIBUS and PROFINET products.

  • No. 1 technology

    in industrial communication are industrial Ethernet protocols.

  • High annual growth rates

    guarantee that this trend will continue.

  • Further enhancements

    and a clear commitment to the international standardization process will push PROFINET ahead.

The tasks performed by drives and thus the requirements for the drive technology vary considerably, depending
on the specific industry and/or field of application.

These include:

• Drives with fixed and variable speed, such as pumps, fans, compressors, and drives for transport tasks

• Single-axis positioning controllers for applications, such as moving, adjusting and positioning

• Servo drives with central interpolation, such as those found in machine tools, robots and production machines

With such a diverse range of requirements, a technology that is flexible as well as adaptable to future requirements is needed to serve as the basis for efficient implementation into products.

As a general principle, drives can be controlled very easily using the digital drive interface with all its functions. For a single drive in such a communication link, it does not matter how this communication link is modeled.
 
Existing products can be upgraded by simply transferring the device and communication models already in the drive to PROFIBUS and PROFINET. But products can only be replaced with products of the same manufacturer or the same product family.

For a drive user, it is also important to be able to select from drives made by various manufacturers having an identical communication interface to use the optimum product for the particular application.

This is only possible with a standardized drive interface such as PROFIdrive for PROFIBUS and PROFINET.
This application-oriented profile, which has been standardized in IEC 61800-7, contains standard definitions (syntax and semantics) for communication between drives and automation systems for PROFIBUS and PROFINET, thus assuring vendor neutrality, interoperability, and investment protection.

The PROFIdrive application profile represents the flexible and future-proof foundation for all drive systems in industrial automation engineering. It defines the device behavior and the process for accessing drive data of electric drives on PROFIBUS and PROFINET and optimally integrates the additional PROFIsafe and PROFIenergy profiles

Overview

PROFIdrive is the standard profile for drive technology in conjunction with the PROFIBUS and PROFINET communication systems. The use of open "application profiles" is a tried-and-tested way of using communication systems to connect drives and controllers from different manufacturers in an interoperable
and straightforward way.

The PROFIdrive profile has been specified by a working group made up of numerous device manufacturers under the PI (PROFIBUS & PROFINET International) umbrella. This working group is also responsible for continuous updates and enhancements.

Work on PROFIdrive can be traced back to 1991 when the focus was on PROFIBUS DP. The widely used profile version 2.0 appeared in 1997. In 2002, profile version 3.1 introduced the synchronous servo interface based on PROFIBUS DP-V2. In 2005, V4.0 saw the inclusion of PROFINET as a further communication system (supported by the version number 4).

Also in 2005, the PROFIdrive on PROFIsafe Amendement was released, which now includes the Drive Based Safety functions from PROFIdrive. The PROFIdrive interface has been continuously developed and enhanced with new features ever since.

Structure

The basic and specifications in the PROFIdrive standard are the following:

 

  1. Base Model: All these functions are independent of the underlaying communication system.
  2. Parameter Model: This is valid for basic fieldbus up to a system-wide Ethernet network with identical application view.
  3. Application Model: Drive technology can be linked without exception and without changes to the automation application.

The PROFIdrive base model defines a general drive application as a set of devices with associated communication relationships (cyclic and acyclic data exchange), irrespective of the communication
system used.

The following device classes are included:

1. Supervisor → e.g. Engineering Station or HMI

2. Controller → Controller or host automation system, e.g. PLC, NC or RC

3. Peripheral device (P device) → Drive device with 1 to N axes - each axis is an own drive object (DO)

Cyclic data exchange

During operation of a drive application, the open-loop and closed-loop control processes must be activated cyclically (Figure 1, "Process Level").

From the point of view of the communication system, this means that new setpoints must be transferred cyclically from the control application processes to the drives and current actual values also must be sent in the opposite direction.

The cyclical transfer can be carried out both isochronously as well as non-isochronously, depending on the requirements of the application and the selected PROFIdrive application class.

For typical drive applications in application classes 4, 5, and 6, the jitter of the clock signal must be guaranteed to be less or equal than 1 µs.

Alarm mechanism

The alarm mechanism (Figure 1, “Alarm channel”) is event-controlled and is used to signal the setting and clearing of maintenance or fault conditions of the drive axis and/or device.

Acyclic data exchange

In addition to the cyclic setpoints and actual values, parameters are used for parameterizing the application processes. The controller accesses these parameters acyclically since this access is not time-critical (Figure 1, "Acyclic data channel"). 

The parameters can be accessed not only by the controller but also in parallel by a supervisor (commissioning, operator, maintenance station)

Isochronous operation

Any modern drive profile must be able to support isochronous operation of distributed drives of a drive application, because this is the only way of accurately coordinating the movements of several axes (such
as for path traversing in NC/RC systems or for synchronizing movements associated with electronic gears).

This means that a drive profile has to fulfill two basic requirements:

  • Synchronization of multiple application processes on different devices to a common master clock
  • Assurance that cyclic data exchange between processes is completed reliably by a defined point in time so that all relevant input and output data are available on time for further processing

For process synchronization, PROFIdrive makes use of device clocks that are located in every device and are precisely synchronized with the system's master clock (Figure 2).

For synchronization of the device clocks, PROFIdrive utilizes the appropriate services of the particular communication system. For PROFIBUS, this functionality is an integral component of DP-V2.
For PROFINET IO, it is a component of the isochronous realtime functionality (PROFINET with IRT).

For PROFIdrive, isochronous communication is the basis for drive synchronization. Here, it is not just the frame traffic on the bus system that is realized in an equidistant time base. The internal control loop algorithms, for example for speed and current controllers in the drive or for controllers in the higher-level automation system, are also time-synchronized with one another.

For typical drive applications in application classes 4, 5, and 6, the jitter of the clock signal must be guaranteed to be less or equal than 1 µs.

Device-to-device communication

Device-to-device communication enables direct data exchange between devices without having to transfer data using master/controller. As a result, it is possible for drives to receive actual values from other drives with minimum delay. This enables the simple implementation of high-performance, cross-axis control loops.

This opens new fields of application, especially in distributed drive applications. An example of this is the transfer of speed setpoints for the purpose of creating a setpoint cascade for paper-, film-, wire-, and fiber-drawing machines.

While device-to-device communication still plays a major role in motion applications with PROFIBUS, it is no longer used in modern motion applications with PROFINET. 

The reason for this is the significantly increased performance of PROFINET which led to the establishment of central PLC-based motion control concepts that are remarkably more convenient to engineer.

Operating modes and basic state machine

A uniform basic state machine is defined for all application classes in PROFIdrive. It is used to bring the drive to a dedicated operating state or switch off the drive in a defined manner.

For application class 3 "Positioning drive", the basic state machine is extended to include the positioning state machines for controlling the positioning function.

The figure below shows the basic state machine (general state diagram) of a PROFIdrive drive. The blue blocks represent drive axis states S1 to S5 and the arrows indicate the state transitions that are possible between them. In case of competing state transitions, priorities are defined by the number of red points shown. The conditions for the state transitions to the yellow boxes are the individual control commands, which are transferred from the controller to the drive axis in the control word with bit coding.

Frames

In cyclic data frames, the control word and the status word form the command interface for the control of the basic state machine by the controller. Individual bits of the control and status word are assigned according to the respective application class.

In addition to the control and status words, the setpoint and actual values of the drive axis are transferred via the cyclic interface. 

PROFIdrive describes the cyclic data interface as a string of signals. In this regard, PROFIdrive signals are control and status words as well as setpoints and actual values. The signal number serves to uniquely define the content of a signal as well as its transfer format.

For simplification purposes, typical cyclic interface implementations of PROFIdrive are defined as PROFIdrive frames. Thus, a PROFIdrive frame number signifies a permanently defined grouping of PROFIdrive signals that uniquely describe the cyclic interface.

The PROFIdrive frames are fundamentally identical for both PROFIBUS and PROFINET. A manufacturer can also use additional vendor-specific frames and signals for a specific application case.

Parameter manager

The PROFIdrive parameter manager, which is operated via the acyclic communication channel, provides users with comprehensive services for accessing the PROFIdrive parameters.

In addition to reading and writing parameter values, additional parameter attributes, such as a parameter description, can also be used. To improve performance in the acyclic parameter channel, a multi-parameter service is also defined for the parameter manager.

PROFIdrive defines a drive model that can already be found today nearly in every drive system.

The device comprises various function modules that represent the intelligence of the drive system.

These function modules are assigned parameters, which are used to configure and parameterize the
function module.

In addition, parameters are also used for internal representation of input and output values of the function module ("Setpoint values", "Actual values").

The function module can be integrated in the cyclic data exchange by interconnecting parameters to the cyclic interface ("Telegrams") accordingly.

The PROFIdrive parameter object has, in addition to the parameter value, additional properties such as the parameter description and the parameter text.

This allows Clients to browse generically through the parameter database and read out all parameter properties from the drive that are relevant for the Client (e.g. physical unit, data type, high/low limit value).

The PROFIdrive parameter channel therefore is the basis for the wide range of non-real time-critical tasks in a drive application, such as:

  • Parameter assignment and commissioning
  • Data backup for device replacement
  • Extended diagnostics, such as trace and diagnostics buffer

Profile-specific parameters

The PROFIdrive profile uses parameter numbers from 900 to 999 and from 60,000 to define parameters uniformly for all drives, independently of the application classes.

These parameters are designated as profile-specific parameters and ensure interoperability and generic identification of the drive and drive interface.

For example, functions for drive identification, fault buffer, drive control, device identification, and frame configuration and the complete list of implemented parameters are available via profile-specific parameters.

Vendor-specific parameters

Besides the parameters described in the profile, manufacturer-specific parameters can also be used and be differentiated depending on the manufacturer, drive and supported drive functionality.

As a result, drive manufacturers can benefit from the advantages of a drive profile without having to forego innovations and unique selling features that provide a competitive edge.

A drive application consists basically of:

  • application processes in the drive, typically motor current control and speed control, as well as
  • application processes in the controller, which may include things like simple speed setpoint
       setting, position control, or path interpolation, and
  • a communication system, which provides the relevant services for data exchange and, if necessary,
       for synchronization between the application processes.

Application classes

The way drives are integrated into automation solutions is heavily dependent on the drive application.

There is an extremely broad range of drive applications in automation solutions.

A drive device can span six application classes, depending on the market segment and device implementation.

In this way, PROFIdrive allow a flexible, manufacturer-specific design of drive products to meet particular market requirements.

Depending on the market segment and the type of unit, a drive unit can cover one or more application classes.

Standard Drive (e.g. variable frequenzy drive)

In simple drive applications, a main setpoint (e.g. speed setpoint) is used to control the drive via its communication channel. Speed or vector control is handled entirely by the drive.

Standard Drive with distributed technology control

Represents also a simple drive application but with technological functions implemented on the drive. In today's automation landscape with high performance communication channels AC2 is no longer relevant for real use cases.

Single Axis Positioning Drive with local position control and trajectory generator

In this class, the drive features positioning control in addition to the drive control (speed and position control). The drive thus acts as an autonomous single-axis positioning drive, while the higher-level technological processes run on the controller.

Positioning tasks are transferred to and started on the single-axis positioner and drive via PROFIBUS DP or PROFINET IO. Positioning drives have a very wide range of applications as seen in positioning drives or in more simple motion applications without path reference.

Multi axis contouring with centralized trajectory generator and position closed loop control

Central motion control application class 4 & 5 defines an interface between the speed setpoint interface and actual position value interface, where speed control is executed on the drive and position control on the controller, as it is typically required in robot and machine tool applications.

Multi axes motion control is performed centrally, for example, by numerical control (NC) and the position control loop is closed by means of the bus. Clock synchronization is required to synchronize the clocks for the position control in the controller and for the speed control in the drives (PROFIBUS DP-V2 or PROFINET IRT).

Distributed drive based motion control

For decentralized isochronous communication and clocked automation like electronic shafts, where the controller (PLC) is not involved in the axis coupling. Typical applications are angle-synchronous operation, such as “electric gear”, “cam disk” or “flying saw”.

PROFIdrive application class 6 has often been used with PROFIBUS to save resources on the PLC. The AC6 is no longer used in today's systems and axis couplings in PROFINET are implemented by corresponding technology objects on the PLC. 

Figure 4 shows the range of drive diagnostic functions available with PROFIdrive. These are generally organized into mechanisms for handling warnings and for handling faults.
This two-level concept enables emerging problems to be signaled at an early stage so that preventive actions can be taken in time. Drives can thus be easily incorporated into a plant-wide maintenance concept.

 

Warnings
Warnings are a form of message that is acknowledged automatically as soon as the cause has been addressed. They provide advance warning so that appropriate measures can be taken in good time for the purpose of preventing a fault condition.

On principle, several warnings can exist at the same time (e.g., "elevated motor winding temperature" and "DC link voltage too low"). Unlike errors, warnings do not cause the drive to stop.
The profile defines parameters for the warning mechanism, each of which represents a so-called warning word. Each warning that occurs within a drive or drive axis is mapped to one bit of the warning word.

 

Faults
A fault condition in the drive (e.g., overtemperature) always triggers a device-specific response, i.e., the drive will generally be shut down. At the same time, one or more fault messages describing the fault condition will be entered in the fault buffer (Figure 4).

A fault entry in the PROFIdrive fault buffer consists of the device-specific fault number, an optional application-specific fault code, and an optional associated value or fault time (Figure 5). The device-specific fault number and fault code information enables very detailed device-specific diagnostics.
Whenever the cause of a fault is eliminated, the user must always explicitly acknowledge the fault by means of a command. The acknowledged fault is not deleted but rather archived in the fault buffer, which allows subsequent tracking of faults. The size of the fault buffer can be specified on a device-specific basis.
 

Integration into standard diagnostic mechanisms

For cross-vendor diagnostics, PROFIdrive provides a simplified profile-specific diagnostics view of PROFIdrive fault classes (Figure 5, "Fault classes mechanism") in addition to the detailed diagnostics view of fault buffers and warning words.

With the help of the PROFIdrive fault classes, it is possible to achieve a uniform and consistent diagnostics view for all PROFIdrive drives, in which fault classes are structured according to typical modules and function blocks of a drive and which supports users and service personnel in carrying out fast, systematic trouble-shooting.

These warnings and faults are signaled as alarm objects (fault, maintenance demanded, maintenance required) to the higher-level controller via the standard PROFINET alarm channel.

The profile defines parameters for the warning mechanism, each of which represents a so-called warning word. Each warning that occurs within a drive or drive axis is mapped to one bit of the warning word.

This ensures consistent integration of the PROFIdrive drive into the standard diagnostics system of PROFIBUS and PROFINET.

In addition to traditional drive functions such as speed, position, and motion control, drives are integrating more and more additional functions, which were previously implemented externally but are now included in the drive.

Two typical examples of this are drive-based safety technology and energy management functions.

These additional drive functions require new communication relationships with additional communication profiles. Drive technology is therefore a typical example of PROFIBUS and PROFINET devices that not only support their original application profile but also other additional profiles (common application profiles). To ensure smooth interaction between these additional functions and the basic PROFIdrive functions, definitions and specifications regarding this interaction have been included in PROFIdrive.

 

PROFIsafe

Integration of safety technology into the drive is beneficial because it eliminates the need for external monitoring devices, thereby reducing wiring expenses and space requirements. From this point of view, the PROFIdrive and PROFIsafe profiles are the perfect complement to one another. Together, the two profiles create a harmonious unit that enables the same bus to be used to control safety functions and standard drive functions (Figure 6).

The safety functions on the drive are controlled by means of cyclic frame exchange with a higher-level safety user program via a safe PROFIsafe transmission channel. For purposes of efficient operation, it is very important to coordinate the sequences on the F-controller with those on the drive control. Thus, for example, preliminary measures such as speed reduction or motion restrictions must be taken on the motion control drive before selecting safety functions, which explains why the drive control requires direct information exchange with the F-controller and with the safety process on the drive (additional safety information). In this case, PROFIdrive defines standardized flexible extensions for standard frames that can be used in all application classes.

The shared-device concept of PROFINET IO enables standard and safety functions to be distributed among different physical controllers/PLCs, thereby significantly expanding the usability of integrated safety technology.

The PROFIdrive profile supports the Drive Based Safety functions STO, SS1, SS2, SOS, SLA, SDI, SLS, SLP, SS, SP and SCAM in the PROFIdrive on PROFIsafe amendment.

 

PROFIenergy

Electric drives account for a large portion of industrial power demand. With continuously rising energy prices, this cost factor is driving up production costs more and more. On the positive side: this represents an enormous savings opportunity for practically all companies. Especially in high energy-consuming areas, significant savings are possible through the use of energy-efficient drives and intelligent energy management. This is where PROFIenergy comes in by providing a uniform, device-/vendor-neutral interface for controlling energy saving functions in PROFINET devices.

Consumption analysis

For the consumption analysis, it is necessary to systematically measure the energy flows in the plant using a higher-level energy management system. Modern drive technology is equipped with sensors for current and speed control and, thus, performance data measurements already exist. So far, however, this data has not been made available at all or only on a manufacturer-specific basis. Standardization of the energy information functions in PROFIenergy means that the drive can be easily integrated into the consumption analysis, thereby eliminating the need for additional costly energy measuring devices. In addition, the performance and energy measurements for the drive can also be used for process and plant diagnostics.

Standby management

The standby management function of PROFIenergy can be used to place the idle PROFIdrive drive in an energy-optimized standby state. In so doing, PROFIenergy communicates the expected idle time duration to the drive. The drive can shut down subprocesses or subcomponents as appropriate based on the idle time duration. To activate standby state, the drive must be deactivated by its application. That is, before a drive is placed in standby state, it must first be switched to S2 mode by its drive control.

The PROFIdrive Community has founded the working group "PROFIdrive Community Project", with the aim of providing drive manufacturers with the best possible support in implementing their own PROFIdrive architecture.

The offering of the Community Project heavily reduces the effort for the implementation and avoiding typical pitfalls during development process by providing all members with tried and tested software and hardware components as well as proven implementation guidelines.

A further big benefit is the provision of a PROFIdrive profile test equipment which supports device manufacturers during the development process and at preliminary testing phase. This powerful tool is a further major cornerstone to achieve a fast, efficient, and systematic implementation of the PROFIdrive profile into own products.

Here is an overview of various beneficial services available through the Community Project and PI Organization:
 

Implementation Guide
The PROFIdrive Application Guide is a valuable planning and implementation aid. It lists all the sub-functions to be
realized in detail for each application class and provides valuable tips on implementation and realization.

 

Reference implementation
This offer includes a license-free source code, proven in the field and usable on various platforms and operating systems. This community source code for AC1 and AC4 application classes enables the implementation of the PROFIdrive profile for controllers, drive devices and encoders on various platforms and PROFINET stacks free of charge.

 

FAQ + version overview report
Over many years, a PROFIdrive FAQ document has been developed to provide quick answers to frequently asked questions. These also refer to special features of individual software versions, provide a version overview and much more.

 

Free supporting document download
Comprising software; overviews, manuals; etc.

 

Provision of PROFIdrive and PROFINET profile test equipment
This powerful und very useful toolset enables fast, efficient, and systematic implementation of the PROFIdrive profile into own products

 

Support from various PROFIdrive Community companies
The PI user community consists of many companies with a wide range of services, which are also exchanged and utilized within the community.

 

Support from PI Competence Centers
PI Competence Centers (PICCs) are centers of technical expertise and work closely together with the Regional PI Associations. There are currently 59 PICCs, a virtual guarantee of global support wherever interested companies happen to be located.

PICCs offer technical support to anyone who needs it and they play an essential role in supporting first-time developers of PROFIBUS and PROFINET devices and systems. PICCs often support local RPAs in the delivery of technical seminars and workshops.

PICCs can also act independently to provide a non-partisan service respecting commercial sensitivities all the while bringing the synergy of the global organization to bear on the development of PROFIBUS and PROFINET products.

PICCs are governed by 'Quality of Services' Agreements administered by PI to ensure the technical excellence of the service they deliver.

 

Support from PI Training Centers
Approximately 30 PI Training Centers (PITC) have been set up with the aim of establishing a global training standard for engineers and technicians. The accreditation of the Training Centers and the experts that are based there ensures the quality of the training and, thus, the quality of the engineering and installation services for PROFIBUS and PROFINET.