The eServ plant maintenance system supports maintenance operations with foresight, and is effective everywhere. Quick and easy to use, it leverages the expertise of Japanese professionals and optimizes the CMMS and EAM concept.

eServ Effect

eServ makes a difference, setting you free from complex equipment maintenance and reducing failures. It was developed by incorporating more than 20 years of expertise and achievements in equipment maintenance, and know-how gained from 360 domestic and overseas sites and 5,000 users.
It is 10 years since the first version of eServ released. eServ has been enhancing its user-operability and applying customer's requirements periodically.
eServ has diverse capabilities and allows various approaches for every technician, making a real difference.

eServ Effect


eServ Preventive Maintenance Reform

When important data is stored on paper or in Excel worksheets through daily work, it gradually becomes difficult to browse historical records. By using information such as spare parts, figures, and work history, eServ can quickly respond to troubles in various work places, thus reducing production losses and wasted efforts caused by equipment troubles, process lock-down, etc.

eServ also facilitates preventive maintenance planning by recording maintenance procedures and check points. A sustainable plant with the required integrity and reliability will be actualized by shifting to strategic and pre-emptive preventive maintenance from the traditional style of breakdown maintenance (MOSMS-000-001-ver1-2007).

eServ Preventive Maintenance Reform


Application of eServ to Industry

eServ is not limited to a particular industry and type of business. It can be applied to any industry, and even for aftersales service for products delivered to customers, including medical devices, computers, and network equipment.

Currently, eServ is expanding into the pharmaceutical and renewable energy industry, including solar power, wind power, and biomass.

  • Oil
  • Oil and gas stockpiling
  • Chemicals
  • Pharmaceuticals
  • Glass
  • Steel
  • Paper
  • Metals
  • Railroad
  • Automobiles
  • Logistics and warehousing
  • Public facilities
  • Fiber Material
  • Hospitals
  • Resin treatment
  • Medical equipment
  • Water resources and environment
  • Semiconductors
  • Electric equipment
  • Network equipment
  • Engineering service
  • Data centers
  • Electric power (thermal, wind power, biomass)
  • Amusement facilities, etc.



To detect issues in safety or maintenance correctly, eServ reforms maintenance transactions for improving the quality of management and maximizing the operating ratio of production equipment. It is effective for more than just equipment maintenance.

eserv features


Functions group for maintenance management

  • Functions group management - Required for completion of the PDCA cycle in areas where maintenance operations are indispensable
  • Equipment ledger management - Handling of requests for maintenance operations
  • Simple - No need to master management
  • Flexible searching of registered information

Maintenance history statistics analyzer for measuring maintenance effects and improving activities

  • Measurement of maintenance effects - To optimize management
  • Report management - For completion of the PDCA cycle for maintenance operations

Total equipment management

  • Equipment management - For consistent traceability and arrangement management delivered to the customer
  • Customized management - Can choose management hierarchy by utility or equipment for customers

Support of device lifecycle management for Yokogawa products

  • Users can register Yokogawa devices by entering just the Serial No., and retrieve the Tag No., Equipment Name, Model Suffix Code and other information automatically.*1
    *1 Only for Yokogawa devices which are registered in Yokogawa’s Product Information site. Contact your sales rep for details.
  • Users can search for compatible devices by specifying the model suffix code in case of device failure.

Custom order

  • E.g. connect to the customer’s system, such as ERP


  • eServ can handle a wealth of data and make it easy to view, with a user-friendly interface.

Synergy with SNS

  • eServ bundles “Chatter”, a secure in-company SNS tool.
  • By using mobile devices, work-related messages and notices with images can easily be transmitted, encouraging communication within teams.


  • eServ is a cloud-based service. Cloud-based services offer many advantages over conventional systems. Refer to “System Requirements” for details.

Localizing Management

  • Multi-language and currency support

Report dashboard

  • Outputs reports and results required for measuring management effects and making improvements.
  • Drill-down function, ranging from measuring management effects for company managers, to useful analysis for daily improvements in the field.

Report dashboard

Equipment ledger management

  • Management system for production equipment:
    - Manage equipment ledger and equipment specifications
    - User Custom Search View
  • Users can create views by defining search conditions.

Work request management

  • Manage work requests to the maintenance division.

Failure information management

Schedule and history management

  • Manage maintenance planning and history information – The monthly work schedule can be confirmed from the annual schedule list.
  • Annual work schedule can be confirmed from the long-term planning viewer.
  • Annual work plans can be made in the long-term planning editor with the simulation functionality.

Inventory management

  • Inventory management and Partsparts master management required for repair

Case Study

Effective Management

Strategic investment to reduce maintenance cost and achieve long-term stable operation

Conventionally, companies wanted a system that would reduce maintenance cost. Prolonged plant lock-downs and recalls cause major problems and huge damages. Failure of production equipment could cost a company more than 100 million yen annually.

But now, the focus has shifted to long-term stable, safe operation of production facilities and utility equipment, which are the source of profit for a company. Systematization of maintenance operations is indispensable. eServ assists such systematization of maintenance operations and thus reduces the failure rate.


Effective Operation

To improve the safe operating ratio of production equipment and breakdown maintenance

For some customers manufacturing particular products on a production line or assembly process, their main activity is breakdown maintenance due to frequent failures.

The purpose of maintenance is to raise the safe operating ratio by reducing prolonged lock-down caused by failures. When it is possible to understand correctly the circumstances of failures and shorten the recovery time based on past data, it enables a shift from breakdown maintenance to preventive maintenance. eServ improves maintenance operations and raises the safe operating ratio.

Avoiding excessive preventive maintenance

For some customers manufacturing particular products in a continuous process, their main activity is preventive maintenance at a constant cycle.

This maintenance style leads to too much maintenance, because maintenance and inspections are conducted regardless of the amount of product manufacture or operating hours.

The cycles and procedures for proper preventive maintenance can be developed by understanding correctly the circumstances of failures and the conditions of production facilities and utility equipment. eServ supports proper preventive maintenance.


Ideally, the maintenance and manufacturing divisions should work together and share information, but this rarely happens in practice. eServ's information-exchange function greatly promotes such communication.

System Requirements

System Requirements

eServ is a web application on Salesforce Japan.
Needs only Internet access and a browser on a PC.

Merits of the Cloud

Save costs and improve plant safety

No software and hardware costs, increased activities for cybersecurity, disaster recovery, system maintenance, version upgrade etc.
Secure customer support.

A wealth of system resources

Abundant system resources can be used at low cost. They include multi-server operation, availability record beyond 99.95% and ensured response of less than 300 milliseconds per page.

Advanced security

Certified for various security standards (including those of financial institutions). Outstanding information confidentiality compared with systems running on in-house servers.

Efficient system monitoring and operation

Eliminates the work needed for operating the system, such as server maintenance, backups and troubleshooting. System management is much more efficient, saving labor.

Latest operating environment at all times

The latest applications are always available.

No need for server upgrades

Upgrades to the server, operating system, database software, etc. are not needed.

Supported browsers

To run eServ, you only need an Internet connection, a computer running Windows (excluding mobile operating systems) and a web browser.



At Shionogi, the facility maintenance management system eHOZEN, the pr edecessor of eServ, has been used for about 10 years. However, due to the aging of servers and systems, they have begun considering renewing the system with the latest one. When considering this, suggestions from several vendors were received assuming that the system package safely migrates data assets accumulated on the current server and meets the following requirements:


Kyowa Hakko Bio monitors vibration trends with Yokogawa's Sushi Sensors to prevent unexpected equipment failures.
By using eServ, sensor data and maintenance information are shared with everyone involved in manufacturing.


The introduction of eServ has resulted in a centralized system of facility information. The reason for the loss of production opportunities has become clear, and it has become possible for all members to follow up the progress of the measures.


Since Mannan Life not only suffered significant loss due to line shut down or disposal loss from unexpected operation problems, but were also often pressed with support work such as arranging personnel, materials, and equipment for repair or after-the-fact processing, how to prevent operation problems was a major issue for management.
To solve this problem, with the second year of introduction as a target, the Kanra Factory began working to shift its work to preventive maintenance, which prevents machine failures and line shut downs due to machine degradation over time.





YOKOGAWA creates autonomous operations with high-efficiency automation and optimization that allows growth with minimal deployment of manpower.


YOKOGAWA aspires to establish Smart GMP manufacturing facilities that provide consistent quality and supply while eliminating industrial waste, enhancing productivity and always using high-quality component parts and materials.

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