Jtekt Corporation

Elan Schaltelemente Gmbh & Co Kg

K. A. Schmersal Gmbh & Co., Kg

Friedrich Adams

Tsutomu Araki

Kuniyuki Niwa

Sutemaro Kato

Michael Niehaus

Christoph Stratmann

Thomas Rühl

Tsutomu Jtekt Corporation Araki

Sutemaro Jtekt Corporation Kato

A safety PLC includes an I/O module to which a safety device for detecting a predetermined condition at any time is connected, a CPU module that executes a safety program for managing the I/O module, and a communication unit that interconnects the I/O module and the CPU module with each other. The CPU module includes: a PIN code memory that stores a PIN code for authenticating that the safety program satisfies a predetermined standard; a PIN code input unit that allows a user to designate the PIN code; a program auto-creating unit that automatically creates the safety program; and a program authentication unit that puts the safety program into an executable condition when the PIN code designated by the user coincides with the PIN code stored in the PIN code memory.

Safety programmable logic controller

A PLC for distributed control includes a storage unit that stores common-data specifying information for specifying common data shared by a corresponding PLC and another PLC, a receiving unit that receives the common-data specifying information from another PLC, and a collating unit that collates the common-data specifying information stored in the storage unit with the common-data specifying information received by the receiving unit.

PLC for distributed control and distributed control system

Growing community of inventors

Wettenberg, Germany

Friedrich Adams