A method for operating a redundant automation system having a plurality of subsystems, wherein one subsystem of the plurality of subsystems operates as a master and assumes process control and the other subsystem operates as a reserve during redundant operation, where measures are provided by which the availability of the redundant automation system is increased, and where regardless of whether transient errors occur on the subsystem of the plurality of subsystems operating as the master or on the subsystem operating as the reserve, a total failure of the automation system is largely avoided.

A method for operating a redundant automation system having a plurality of subsystems, wherein one subsystem of the plurality of subsystems operates as a master and assumes process control and the other subsystem operates as a reserve during redundant operation, where measures are provided by which the availability of the redundant automation system is increased, and where regardless of whether transient errors occur on the subsystem of the plurality of subsystems operating as the master or on the subsystem operating as the reserve, a total failure of the automation system is largely avoided.

A production system, comprising circuitry configured to: collect synchronously collected data synchronized with a control period of a first industrial machine configured to control a second industrial machine; execute predetermined processing on all or a part of the synchronously collected data to acquire output data; and transmit the output data to an external device.

The present disclosure relates to an interface conversion device of a programmable logic controller (PLC) system and a PLC system thereof. The interface conversion device of a PLC system according to an embodiment of the present disclosure is an interface conversion device that is applied to a PLC system including a base unit that controls an operation of the PLC system, a plurality of expansion modules that operate under the control of the base unit, and an interface that is a communication line between the base unit and each of the expansion modules, and is configured to connect between a first interface for parallel communication and a second interface for serial communication.

To facilitate management of execution of a user program such as a ladder program and motion control. A processor includes a first core that executes a control logic operation based on a user program and a second core that executes motion control based on the user program. A memory stores a first variable group accessed when the control logic operation is executed by the first core and a second variable group accessed when the motion control is executed by the second core. A management unit performs management such that the control logic operation executed by the first core and refresh processing of the first variable group stored in the memory are sequentially executed. A synchronization control unit synchronizes a variable related to the motion control in the first variable group with a corresponding variable in the second variable group through the refresh processing.