Field Assistant

Yokogawa's "Field Assistant" is an enabler for digital transformation of field activities in a process plant, such as operator’s round, basic equipment care, predictive maintenance, and so on. 
It helps to enhance safety, reliability, efficiency, and seamless communication, not only for work inside individual department, but cross-organizational work.
It consists of simple on-premise server, web client & tablet applications. 
The tablet application is designed to work off-line during field activities.

Click here to learn about Field Assistant 

Key areas for Operational Excellence Transformation

Operational Risk Management

Operational Excellence Transformation is Yokogawa and KBC’s co-innovated portfolio of solutions and services.We provides comprehensive solutions for business automation in all four areas using consulting and digital technology.

Operational Risk Management

Yokogawa's Operational Risk Management deals with managing safety, health and environmental risks on both individual and process levels in a reliable and risk-free manner. It involves the end-to-end process of designing, visualizing and orchestrating plant production and business systems.

Key Operational Competencies in Operational Risk Management

  • Process Safety Management: Maintain License to Operate, preserve Business Reputation, and create value by utilizing and adhering to operating integrity processes to prevent loss of containment or catastrophic loss
  • Personal Safety Management: Protect human assets by providing safe practices to improve behaviour and culture
  • Environmental Management: Provide processes to protect the environment through operating integrity, and ensure compliance with environmental, regulatory and/or internal requirements
  • Community Relations: Define and establish processes and protocols to communicate and implement emergency response plans, and enhance interactions in the community
  • HSSE Reporting and Compliance: Assure visibility and achievement of HSSE goals and compliance requirements, by monitoring, learning and improving continuously through processes, initiatives and KPIs
  • Plant Protocols and Security: Provide processes and strategies to protect assets and infrastructure from threats, and control access to vulnerable processes and equipment

By combining Yokogawa’s product portfolio and KBC’s consulting services, we provide our customers best practices and domain knowledge that empower them to improve their operations, as well as a digital platform that supports such activities and initiatives. Our Operational Risk Management scope does not only cover partial improvements in the organization, but also optimizations in plant operations to achieve continuously improving safety, reliability and operability.


·Supply Chain Optimization

- Optimize management of supply, whether oil in the ground or feedstocks for a refinery or chemical asset, in light of product market demands. This provides operators with the agility to take full advantage of market conditions.
·Asset Operations and Optimization
- Optimize the potential of physical assets, by pushing throughput and maximizing the production of the highest value products, whilst minimizing variable costs such as energy.
- Deliver small and large capex projects, on time and on budget, to deliver growth and meet environmental requirements.
·Asset Management and Integrity
- Confidently ensure asset reliability and availability, whilst controlling maintenance costs. This assures the asset always meets expectations and is always available to capitalize on short term market opportunities. 

Field Assistant

Mobile application for plant site

Yokogawa's "Field Assistant" is an enabler for digital transformation of field activities in process plant, such as operator’s round, basic equipment care, predictive maintenance, and so on. 
It helps to enhance safety, reliability, efficiency, and seamless communication, not only for work inside individual department, but crossorganizational work.
It consists of simple on-premise server, web client & tablet applications. 
The tablet application is designed to work off-line during field activities.



Major benefits include the following:

1. Digital Transformation for field activities in process plant

  • Loss-less information capturing from field activities
  • Digitalized SOP with further assistant features and its compliance check evidence
  • Smart document reference anytime at a field

2. Operation & Maintenance integration

  • Seamless information sharing on unified work platform beyond an organization
  • Standardized communication scheme with digitalized data collected from field

3. Digitalized data from field for further analysis & utilization

  • Digitalized data can be utilized in conjunction with process data or other plant data


 Field rounds digitalization



About OpreX™

OpreX™ is the comprehensive brand for Yokogawa’s industrial automation(IA) and control business. The OpreX™ name stands for excellence in the technology and solutions that Yokogawa cultivates through the co-creation of value with its customers, and encompasses the entire range of Yokogawa’s IA products, services, and solutions. With this brand, Yokogawa will deliver integrated solutions that address specific needs and support its customers in their efforts to transform and grow their businesses.


Web Client

1. Dashboard

- Can check summary of current situation at a glance
- Can drill down to find more detail
- One-shot (non-recurrent) round creation

2. Reporter

- Referring analyzed data with various filters and conditions
- Making reports and prints for submission
- Auto creation of a shift report

3. History

- Modify, delete, and create any type of field logs by web clients for management purposes
- Trend graph for numeric work results

4. Composer

- Performing necessary configurations

•    User management
•    Shift setting
•    Plant hierarchy setting
•    Round route setting
•    Task scheduling
•    Document registration
•    E-mail notification setting
•    Registration management of client mobile devices


Mobile Application

Working on Android/Windows devices*

* Android 5.1.1 or later

* Windows 10 (1809 or later)

Supporting voice command operation on RealWear HMT1/HMT1-Z1**

** Some features are limited in RealWear application.

- Digitalized field checklist
- Field readings input

•    Alert in case preset range is exceeded
- Past field reading data indications

•    Numeric
•    Trend with range
- NFC, RFID, and QR code scanning to detect the tag names of a device in front

•    NFC/RFID/QR code scanning can be set as mandatory for inputting field readings.
- Download tasks and upload work results on the network
Available area
•    On-demand download of tasks during field work
•    On-demand upload of work results of route
- Adding logs on any devices or plant hierarchies
- Photo/video/sound recordings can be added on any logs as attachments

•    Max five attachments/log
•    Video file size is restricted to 10 MB/file (about 20 sec. at 640 X 480 resolution)
- Freehand drawing tool
- Upload log(s) on demand when connected to the network

Mobile application for plant site

- Refer to device-related digitalized document from tablet

•    Available file type depends on apps installed onto a tablet
- NFC, RFID, and QR code scanning for referring the related document of a device in front

- Download documents on demand when connected to the network


Integration with Yokogawa Operations Management (OM) System

•    OM Work Instruction (WI) can trigger an inspection round, which is preconfigured in the Field Assistant.
•    OM WI with a step-by-step instruction. Its compliance check can be sent and executed in the Field Assistant.
•    Recorded log on field assistant can upload onto OM. It helps for CSN communication.

Image of integration with Operations Management




Ube Corporation Europe and Yokogawa co-created the Field Assistant mobile solution.
Field Assistant innovates inspection patrol, supervisory management, and O&M efficiency in the plant.


  • Pressemeldung Dez 1, 2020

    Einfachere Inspektionen vor Ort: Yokogawa bringt Field Assistant R2.05 auf den Markt

    Die Yokogawa Electric Corporation bringt eine erweiterte Version der Software für die Inspektion von Industrieanlagen vor Ort heraus. Mit Field Assistant R2.05 können Anwender jederzeit auf Checklisten, Handbücher und viele andere Dokumenttypen zugreifen. Die neueste Version unterstützt jetzt auch Windows-Tablets und die freihändig bedienbaren Head-Mounted Tablet-Computer von RealWear.

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