A device for a robot is disclosed. In the device for a robot, a first signal is transmitted from a robot control device to the robot, a second signal is transmitted from the robot control device to the device for a robot, and a third signal is transmitted from the robot control device to the device for a robot, the third signal being transmitted from the robot control device in a case where there is a communication error between the robot control device and the device for a robot so that the device for a robot is restarted via a reset circuit.

A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.

A production system includes a first manufacturing machine and a second manufacturing machine. The production system also includes a production control unit configured to control productivities of the first and second manufacturing machines. In response to detecting a breakdown sign in the first manufacturing machine, a stop time of the first manufacturing machine is predicted. After the detection of the breakdown sign and before the first manufacturing machine stops, the productivity control unit updates the productivities of the first and/or second manufacturing machines, causing the first manufacturing machine and/or the second manufacturing machine to have an updated productivity equal to or greater than its original productivity, such that a total productivity of the first manufacturing machine and the second manufacturing machine increases.

Detection of a breakdown sign in a first manufacturing machine forming a production system, prediction of a stop time when operation of the first manufacturing machine stops due to the breakdown, and specification of a maintenance time to return the first manufacturing machine to a normal state when the first manufacturing machine stops operating due to the breakdown. Achievement of a first total productivity planned by the planning unit when the sign of the breakdown is detected during the operation of the first and second manufacturing machines and the stop time of the first manufacturing machine is earlier than the maintenance time, at least the amount of operation of the first manufacturing machine is controlled to be equal to or greater than an amount of operation before the sign of the breakdown is detected, and a second total productivity higher than the first total productivity is set as a total productivity to the stop time.

A control system for technical installations includes at least one electronic manual operator-control instrument that can be carried and used mobilely by an operator-control person for influencing and observation of the control system or a connected technical installation. The instrument has a wireless communication interface and a communication interface established via a connecting cable. At least one safety switching element actuated by the person on the manual operator-control instrument can at least terminate potentially hazardous control commands or movement sequences. The hard-wired communication interface includes a contact-based plug interface on the instrument having a first coupling element on the instrument and a second coupling element coupled and decoupled as needed relative to the first coupling element. At least one termination indicator on or in the connecting cable directly in or near the second coupling element can be sensed electronically by a termination-indicator detector.

An information processing device includes: a detection unit configured to detect an event generated in a control system including at least one network; a connection configuration expression unit configured to visually express a physical connection and a logical connection of the network included in the control system; and an event output unit configured to output the event detected by the detection unit while correlating the event with the physical connection and the logical connection of the network, the physical connection and the logical connection being visually expressed according to a place where the event is generated.

A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.

A device for a robot is disclosed. In the device for a robot, a first signal is transmitted from a robot control device to the robot, a second signal is transmitted from the robot control device to the device for a robot, and a third signal is transmitted from the robot control device to the device for a robot, the third signal being transmitted from the robot control device in a case where there is a communication error between the robot control device and the device for a robot so that the device for a robot is restarted via a reset circuit.

A network management device that supports restoration from an abnormality is provided. A management device is a management device that manages a network including a master device and a slave device connected to the master device, and includes a network configuration diagram display unit that displays a network configuration diagram based on design information of a network according to a design created by a user, a state information acquisition unit that acquires state information relating to a state of the slave device, and a state display unit that displays the state on the network configuration diagram in association with the slave device based on the state information.

A handheld maintenance tool operates to detect the existence of a fault in a communication line or bus, including detecting short circuit or other low impedance faults, open circuit or other high impedance faults, etc. Additionally, the handheld maintenance tool may operate to detect an approximate location of a fault within the communication line with respect to the handheld device, to thereby enable an operator or maintenance person to more easily find and repair a detected fault.