Installation and Commissioning

“My team has never declared ‘mission accomplished’ so quickly!”
Project-Manager after commissioning a bio-diesel plant with PROFIBUS PA, Germany

Integrated digital communication makes installation and commissioning of fieldbus instrumentation a highly efficient process. The following diagram provides an overview of the work steps required:

The installation documentation describes all the work steps in detail. It is manufacturer-independent and was developed by the fieldbus organizations FieldComm Group and PROFIBUS International.


It is generally understood that the cables for automation and power distribution must be routed separately, and this establishes an important basis: In this way, EMC faults caused by frequency converters—which are widespread in the process industry—can be prevented effectively.

Just as important for effective and reliable protection of communications is the grounding and shielding concept. The devices must be connected with care and must comply with specifications in order to avoid malfunction.

The main focus is on the field device connection: The shielding must be cut back cleanly, separated from the two signal conductors, and fitted according to specifications. Many institutes and small companies are certified by the fieldbus organizations and provide expert advice and training. Pepperl+Fuchs is always available to provide advice and assistance to its users with insider expertise.

Testing and Commissioning

Following installation and connection of all devices, the fieldbus power supply is activated.

Mobile tools like the Fieldbus Diagnostic Handheld FDH-1 enable a complete inspection of the installation to be performed on-site and can be started at the push of a button. The FDH-1 is as easy to operate as a multimeter, and the installation teams can use it by themselves. The diagnostics function lets employees identify and correct faults immediately.

The commissioning reports generated by the FDH-1 document the work that has been performed and contain all necessary information. This means they provide clarity between installation engineers and commissioning engineers in a way that is much more convenient than an inspection process using only a multimeter.

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