Omron Corporation

Takehiko Hioka

Toshiyuki Nakamura

Shinsuke Kawanoue

Hiromu Suganuma

Yutaka Abe

Naoaki Ikeno

Yasuo Muneta

Takamasa Ueda

Shohei Fujiwara

Asahi Matsui

Keiichi Teranishi

Katsufumi Yoshida

Yasuki Yoda

Chiaki Koshiro

Nobuyuki Takuma

Keiichi Teranisi

Isao Yamashita

When user configuration data recorded in a recording medium is written into a PLC, the PLC determines, in accordance with a combination table stored in the recording medium, if a combination of the user configuration data and firmware already stored in the PLC is suitable. In addition, when firmware recorded in the recording medium is written into the PLC, the PLC determines, in accordance with the combination table stored in the recording medium, if a combination of the firmware and user configuration data already stored in the PLC is suitable.

Control device, control system, control method for control device, and control method for control system

Unauthorized installation of software is prevented even at a production site at which software cannot be installed through a communication line. The memory card stores: additional software including a software ID; a recording medium ID; and encrypted information generated by encrypting the software ID, using the recording medium ID as a key. The controller performs the steps of: obtaining the encrypted information from the memory card; obtaining the recording medium ID from the memory card; obtaining the software ID by decrypting the encrypted information, using the recording medium ID as a key; obtaining the software ID from the additional software, comparing the decrypted software ID and the software ID obtained from the additional software; and storing the additional software in the storage when the comparison is successful.

Control apparatus and control apparatus system

An information processing device collects information on an operating state of a communication system formed of a master device that manages communication over a network and at least one slave device connected to the network and capable of performing communication as instructed by the master device. The master device and the slave device record communication log entries regarding time information and a communication state in accordance with communication processing. The information processing device includes an acquiring section that acquires communication log entries from at least one of the master device and the slave device, a log entry rearranging section that rearranges the acquired communication log entries based on the time information, and a log entry extracting section that extracts, out of the rearranged communication log entries, any communication log entry recorded within a predetermined period of time from occurrence of a communication log entry including communication abnormality information.

Information processing device, information processing device control method and control program

A support device executes a maintenance operation for a PLC, and records, into the PLC, information identifying the maintenance operation. The maintenance operation includes at least either of writing and deleting of data such as firmware into/from the PLC. The support device may further record, into the support device itself, information identifying the maintenance operation. In addition, the PLC uses data stored in a recording medium to execute a maintenance operation for the PLC. At this time, the PLC records, into the PLC itself, information identifying the maintenance operation. The PLC may further record, into the recording medium, the information identifying the maintenance operation.

Control device, control system, support device, and control-device maintenance management method

A safety device of the invention includes at least one of an input unit having one or more input terminals and an output unit having one or more output terminals, a testing unit having one or more test terminals, a rewritable nonvolatile memory configured to store setting information of a terminal specification which can be set from outside via the tool, and wherein the terminal specification of the one or more test terminals included in the testing unit is determined in accordance with the setting information of the terminal specification.

Safety device

A safety master configured to communicate with a plurality of safety slaves over a safety field network or with a plurality of safety local I/O units connected by a safety back plane bus of the safety master, wherein each of the plurality of safety slaves and safety local I/O units allow connection to safety I/O devices in a plurality of cell equipment, and wherein the safety master receives a status signal indicating a 'safe state' or an 'unsafe state' related to cell equipment from each of the corresponding plurality of safety slaves or safety local I/O units, and controls operation/stop of cell equipment by executing an interlock operation program with the received status signal as an input to output an operation instruction signal.

Safety master

This invention provides an input device of safety unit which enables an error diagnosis result referred to in a process of input processing for generating a control data from raw input signal to be referred by a side using the control data also in a safety unit such as a safety master and safety slave. An input device contains a function of outputting status data indicating the error diagnosis result referred to when input signal is converted to control data and the control data obtained by the conversion in pair, so that when the logical value of the control data is 'LOW', whether it originates from that the raw logical value is 'LOW' or that &#x201c;LOW&#x201d; is compulsorily set due to an error in the terminal can be determined from the logical value of the status data.

Growing community of inventors

Ritto, Japan

Takehiko Hioka