This paper introduces the design and installation of control systems utilizing programmable controller (PC) network functions, high-speed direct digital control (DDC), and material flow control, as characteristic examples of PC's out of Fuji Electric's accomplishments in PC application. Future PC application to higher information-oriented, automated systems will require the standardization of communication protocols and the establishment of a general-purpose intermediate language between existing software expressions and a machine language to realize systematic production and maintenance of softwares.

As the reliability and serviceability of the programmable controller (PC) increased recently, they have been applied to electric power systems widely.
In regard to thermal power stations, water power stations and substations especially, this paper introduces the applications of modern PC's the main control function (governer, AVR), substation controlling and man-machine interfacing (MMI).

The application of programmable controllers (PC's) to the industrial plants, such as steel and paper plants, is gradually increasing together with their higher performance. Recently they have important functions in plant control. According to the above background, this paper outlines the application of PC's to modern industrial plants.

Recently, with the improvement of factory automation (FA) and flexible manufacturing systems (FMS), the application of programmable controllers (PC's) have been extended from control for a unit machine to control for several machines and line production systems.
This paper introduces the PC's (Fuji MICREX-F series) applied to equipment monitoring systems and production control systems.

In the rapid spread of automation in various fields, programmable controllers (PC's) for material handling systems show a tendency to be used in complex systems linking flow and interlink systems rather than in simple PC unit systems.
This paper describes an outline of general complex systems and PC applications, concrete examples of automatic warehousing systems and unmanned carrier systems, and functions necessary for PC's and their recommendable applications.

Batch-process factories which manufacture various kinds of products using the same production lines have actively introduced rationalized systems utilizing computers, programmable controllers (PC's), and so forth.
This paper introduces the configuration and features of Fuji Electric's automated system in a mix-feed factory. This system adopts a centralized supervisory and control system where principal control functions are concentrated in place, and facilitates rationalization including factory management, for example, the automatic operation of equipment and their production programs, recipe control, daily reports, document writing, etc.

Distributed control systems have been applied recently to process automation systems for water and sewage works. Namely the programmable controller (PC) have been improved from individual control systems to distributed control systems progressively.
Usual distributed control systems for each equipment can be changed by Fuji's new type PC (MICREX-F) to new distributed control systems for more divided equipment. Therefore horizontal and vertical control systems are realized by direct control operation.
This paper introduces the application of PC's to the filter basin installation in water works.

In recent process control, the progress of transmission technology has facilitated date input into computers.
However, the date transmission between local operator panels and local stations is still hampered by the restrictions of wiring methods, etc., which set limits to the maintainability, expansibility and economical effect of systems.
Multifunctional control centers have been developed to meet these requirements. It is expected that higher grade supervisory control systems, preventive maintenance and so forth will progress by fulling up sufficient information for centralized supervisions.

A control system of COUTER STACKER-one of the forwarding equipment for newspaper printing system-has been developed, applying the PC MICREX-F200 and PMS-050 type man-machine controllers.
The operations of this systems are "editing of data and monitering of the condition for count and stack of newspaper, printing out of editing date and controlling of COUNTER STACKER". The performance of this system is further enhanced by utilizing the capabilities of MICREX-F200 effectively, to realize the execution time of processed to 0.05 sec/scan, in spite of the quantities of data processed in MICREX-F200 up to 10k words, when including auxiliary memory, up to 64k words.

A bowling auto-scoring system named "Fesra-100" has been developed by Fuji Electric, applying the programmable controller MICREX-F series.
The configuration of this system is distributed control network linked by date transmission lines "T-link" between a host processor FPK-205 and man-machine interface terminal units PMS-050 at each lane and at front area, utilizing message communication effectively. This paper gives an outline of the features and performance of the "Fesra-100" system.

Programmable controllers are indispensable in the fields of industrial automation, for example, FMS and FA, as central control units.
network and date processing using mass storage memory, and discusses the reliability, the high speed scanning time of these applications and the distributed location of T-linked control panels quoting some instances of our supplies.
These application examples are cases of testing, palletizing, painting and inspection equipments in the fields of industrial automation.

Demands for decentralized electrohydraulic conversion control systems in place of conventional hydraulic governors have been increasing with the progress of automations of thermal power station and system turbine technology. Fuji Electric has developed a digital-type electrohudraulic governor of high reliability, controllability and serviceability to meet these demands. The system uses MICREX-F500 as a main processor. Adopting triplexed main control unit in the form of middle value gate and 2-out-of-3 circuits enables the systems to ensure high reliability of the system, and improving the functions of self-diagnosis and failure-duagnosis realized hot-line disconnecting of printed boards and visualization of program, giving high serviceability of the system.

The requirements of recent building management systems are in a great variety such as high functions for intelligent buildings, and large capacity and high reliability for large 24-hour operating buildings, as well as labor saving and energy saving.
Computer systems have been introduced to meet the above requirements. This paper describes their features and functions, quoting examples provided for building management systems.

Industrial knitting machines, which produce knitwear such as hose, sweaters and so on, are classified into circular-knitting machines and flat-knitting machines from their construction.
Previously knitting was done by the machines only with mechanical control, but electronic control has been introduced positively, responding to the variety, personality and sophistication of modern fashion needs.
In the past, general-purpose PC's were partially applied to these control devices. Nowadays, special-purpose PC's have been used to realize integral construction with machines, special-purpose functions, combination with knitting CAD etc.