A device and a method for interlinking conventional fieldbus-based automatic control system with IoT at a subordinate position are provided. According to the present disclosure, the interlinking system device comprise a fieldbus connection unit connected to an operation device based on a fieldbus protocol and configured to operate as an input-output device, a fieldbus virtual input-output memory configured to memorize input-output information exchanged with the operation device, an IoT connection unit connected to an IoT platform based on an IoT protocol and configured to operate as an IoT device, a message formation unit configured to apply message metadata received from the IoT platform via the IoT connection unit and a message processing unit configured to process an input-output message based on the message metadata and the input-output information.

A device access means for accessing fieldbus components of a fieldbus system is described. The device access means is installed in a host or host environment and includes a frame application as well as, bound into the frame application, at least one driver, which is designed to access at least one fieldbus component. Moreover, the device access means includes a monitoring unit, which is designed to register information concerning resources reserved by drivers and provided by the operating system of the host or host environment, and, upon detecting an abnormal temporal increase of resources reserved by drivers, to initiate at least one predetermined countermeasure.

A signal processing device including an acquisition unit configured to acquire signal waveform data corresponding to a frequency signal, a generation unit configured to generate a sine wave and a cosine wave of demodulation waveform data having a demodulation frequency between the first frequency and the second frequency, a first phase calculation unit configured to calculate a first phase based on a multiplication result of the sine wave and the signal waveform data at a first time and a multiplication result of the cosine wave and the signal waveform data at the first time, a second phase calculation unit configured to calculate a second phase based on a multiplication result of the sine wave and the signal waveform data at a second time advanced from the first time by a specified time interval less than one cycle of the demodulation frequency.

A multi-axis servo control system includes a plurality of motors and a plurality of drive control apparatuses. The drive control apparatuses are connected to each other through an external field bus. Each drive control apparatus includes a control unit and a plurality of drive units. The drive units are connected to the control unit in series by a plurality of local buses to form a series-connected communication loop of sequentially transmitting data. Each drive unit controls at least one of the motors. The control unit receives multi-axis position commands through the external field bus, and the drive units correspondingly receive multi-axis commands through the local buses so as to control the motors in a decentralization manner.

A method for secure communication between a master and a slave of a bus system includes exchanging a telegram between the master and the slave. The telegram has a first region and a second region. The first region contains a predefined instruction. The second region is filled at least in part with a free instruction. A communication system and a system or an industrial system are also provided.

A system is provided to conduct communication in a facility with equipment in hazardous and safe areas. The system includes at least one field device in a hazardous area of the facility; one or more controllers, located in a safe area of the facility, for managing the at least one field device; and a field barrier, between the safe and hazardous areas, to limit at least electrical energy, which is supplied to the at least one device, at or below an electrical energy threshold in the hazardous area. The system also includes a bus system to supply electrical energy across the field barrier to the at least one field device using electrical wiring and to enable communication between the at least one field device and the one or more controllers across the field barrier using one or more fiber optic cables.

A device and a method for interlinking conventional fieldbus-based automatic control system with IoT at a subordinate position are provided. According to the present disclosure, the interlinking system device comprise a fieldbus connection unit connected to an operation device based on a fieldbus protocol and configured to operate as an input-output device, a fieldbus virtual input-output memory configured to memorize input-output information exchanged with the operation device, an IoT connection unit connected to an IoT platform based on an IoT protocol and configured to operate as an IoT device, a message formation unit configured to apply message metadata received from the IoT platform via the IoT connection unit and a message processing unit configured to process an input-output message based on the message metadata and the input-output information.

A method for operating a fieldbus controller (2) having a plurality of I/O modules (4) is provided, the fieldbus controller (2) being coupled to a valve assembly (6) via the plurality of I/O modules (4). The method includes providing a user interface (8) for wirelessly operating the fieldbus controller (2), wherein providing the user interface (8) includes: providing a configuration interface (14) for configuring an operating mode of the plurality of I/O modules (4); providing a monitor interface (16) for reading status information from the plurality of I/O modules (4); and providing a control interface (18) for controlling a state of the plurality of I/O modules (4), the state of the plurality of I/O modules affecting a state of the valve assembly (6).

An input/output system including: an input/output base unit which has a plurality of slots into which input/output modules are pluggable; an evaluation device; and at least one cover element which is arrangeable on one of the plurality of slots of the input/output base unit. The evaluation device detects a presence of the at least one cover element at a slot of the plurality of slots.

A fieldbus network is described, which has at least one device as well as a connecting apparatus, wherein the connecting apparatus is designed to transfer data from the fieldbus network into a cloud. Installed in at least one of the devices is a derived class, which is derived from a predetermined head class, wherein head attributes are established by the predetermined head class and additional device specific attributes are established by the derived class, wherein the at least one of the devices is designed based on the derived class to produce a data object for the data transfer to the cloud. The connecting apparatus is designed to receive the data object of the device, to convert at least a part of the data contained in the data object into a format of an interface of the cloud and to write the data into the cloud.