IIoT Solutions for Industrial Communication in Process Industries

Here again, Pepperl+Fuchs makes a significant contribution with various technologies, based on its high and long-standing expertise in explosion protection, especially for the process industry. Plant layouts with sometimes enormous spatial expanses (and cable lengths) and certain requirements for explosion protection present special framework conditions for the transfer of high volumes of data. Several case studies demonstrate how this task can be solved on the basis of smart explosion protection technologies and the connection of smart mobile devices including IIoT applications.

Smart Explosion-proof Technology in the Field of Process Plants

A field device connected to a FieldConnex® Ethernet-APL rail field switch reports an error to the plant's asset management system, developed by Neoception, via the cloud. Since the fault cannot be corrected by remote control, a technician equipped with the intrinsically safe smartphone Smart-Ex® 03 and a CPU pocket unit, makes his way to the field of the process plant. Throughout the process, he is continuously connected to a team of remote experts via the plant's own 5G campus network. They not only guide him in troubleshooting and repair, but also ensure lone worker protection.

Predictive Maintenance with HART and Smart Mobile Devices

A valve indicates that it is worn and needs to be replaced soon. Current device data on the status is output via the HART communication protocol. In the event of a planned plant shutdown, the valve can be replaced by a technician using work order management. The technician can effectively schedule the installation into his route. An image documentation of the installation is created with the smartphone.

Plant Expansion Made Easy with Ethernet-APL and Tab-Ex® 03

The technician receives a push message on his Tab-Ex® 03 tablet: An ordered valve has arrived. He collects it and installs it in the system. The cable is pulled from the Ethernet-APL switch to the device and the connection is made. The field device is automatically recognized, registered and can be set up. The basic settings can be accepted or default settings can be called up from the device manufacturer.

The Digital Nameplate—the Access to any Available Information  

All three valves shown in the video are equipped with a unique identifier which allows access to any information and documentation. This is a unique identifier standardized in accordance with IEC 61406 for each individual serial number in the form of a QR code. The technician scans the QR code of one of the three valves with the Smart-Ex® 03 and reads out the digital nameplate of this device: this gives him access to the Asset Administration Shell (AAS) of exactly this field device. It turns out that the error must be in one of the other valves. So he scans the digital nameplate of the second valve—now the Smart-Ex shows the error message. The data and spare parts list of the defective valve are now provided via the Asset Administration Shell. The technician has the necessary spare part with him, replaces it and orders it immediately with one click.

The demonstrator shows that with the appropriate technologies, end-to-end digital connectivity all the way to the cloud can easily be implemented in hazardous areas.

The central element of such a scenario is the Asset Administration Shell (AAS)—the industry-neutral standard according to IEC 61360 for the supply of information of a device (asset) as well as for uniformed communication. Each asset has its own AAS, which stores information about its properties and capabilities such as construction plans, product data, changes in condition, etc. from the beginning of product development throughout the entire life cycle. The AAS therefore represents the digital twin of the mostly physical object or asset. Via its AAS, each asset can be identified and addressed worldwide. Via standardized interfaces and a uniformed language, people or machines can find, exchange, and store all desired data and information on a specific asset—this ensures global interoperability and paves the way for digital value networks.

Based on the unique identifier standardized in the IEC 61406 standard, the AAS of physical objects can be accessed automatically. The digital nameplate is a unified submodel of the AAS which makes all relevant information as well as certificates and documentation available digitally. Compared to the conventional analog nameplates, the AAS and digital nameplate create considerable added value.

The initiative for the unique identifier was launched as the "Auto-ID" project by manufacturers of process equipment and operators of process plants. The goals were to accommodate the increasingly extensive marking on equipment for explosion protection, as well as to electronically manage the corresponding information of the equipment and to be able to use it digitally in the field.

Highlights

• Pepperl+Fuchs: Pioneer and co-designer of the Industry 4.0 platform
• Technology leader with more than 70 years of experience in electrical explosion protection
• Future technology Ethernet-APL brings Ethernet into the field of the process plant
• Explosionproof mobile devices from the Pepperl+Fuchs brand ecom allow data transfer, remote access, and remote support in the field
• Versatile, high-performance portfolio, software and integration expertise enable end-to-end digital connectivity all the way to the cloud