Hitachi, Ltd.

Manabu Yamauchi

Hiroshi Ohno

Tsutomu Yamada

Shoji Suzuki

Masahiko Saito

Toshiaki Arai

Tomoki Sekiguchi

Hirokazu Kasashima

Noritaka Matsumoto

Tomoaki Nakamura

Hiromichi Endoh

Shigenori Kaneko

Ryokichi Yoshizawa

Naoshi Kato

The invention contemplates to improve versatility or flexibility of a system for managing a controller. In a data format converter, a computer constitutes reception unit for acquiring input information containing a program, etc, of a first data format and outputted from a programmer unit, direction extract unit for extracting a convert direction of a data format contained in the input information so acquired, data conversion rule acquisition unit for acquiring a conversion rule of a data format corresponding to the convert direction so extracted and convert execution means for converting the program, etc, of the first data format to a second data format. The program, etc, of the second data format converted is outputted to the controller. The program, etc, can be created in this way in an arbitrary data format different from the data format of the controller.

Data format conversion method and equipment, and controller management system using data format conversion equipment

An inter-OS control software for switching OS's in operation executed on a single CPU is installed, and plural OS's are made alternately executed. A control program is executed exclusively on one OS, which controls the controlled apparatus. A supervisory control program and a development environment program are executed on another OS, and a memory space is divided so as to make no effect for the operation of the control program. A higher real-time performance and reliability can be established with a single CPU architecture.

Multiple operating system control method

Growing community of inventors

Yokohama, Japan

Manabu Yamauchi