A field device includes a process communication module, a graphical display and a controller. The process communication module is configured to communicate in accordance with a process industry standard communication protocol. The controller is operably coupled to the process communication module and the graphical display and is configured to responsively cause the graphical display to generate a machine-readable display output.

A method for controlling a safety-critical process of a technical installation includes providing a first safe signaling unit and a second safe signaling unit that are connected to the safety-critical process via I/O channels. The method includes connecting the first safe signaling unit and the second safe signaling unit via a physical connection. The method includes implementing a safety-related communication protocol for failsafe data exchange on a logical level over the physical connection between the first signaling unit and the second signaling unit. The method includes exchanging data between the first safe signaling unit and the second safe signaling unit in a failsafe manner using the safety-related communication protocol to control the safety-critical process. The physical connection is implemented via a power supply network.

The present invention provides for an electronic isolator device for application in intrinsically safe environments having isolation and safety functionality and comprising: an isolator module (101), a safety module (100), and wherein the isolator module is arranged for removable physical/electrical connection to the safety module in at least two orientations/configurations (DO, Dl, Al, AO) relative to the safety module, wherein the electrical connection to the safety module in each of the at least two orientations/configurations serves to configure the electrical functionality of the safety module (100).

A field device includes a process communication module, a graphical display and a controller. The process communication module is configured to communicate in accordance with a process industry standard communication protocol. The controller is operably coupled to the process communication module and the graphical display and is configured to responsively cause the graphical display to generate a machine-readable display output.

A system includes a module having at least one input/output (I/O) channel. The system also includes a terminal block having terminals configured to provide electrical connections for the at least one I/O channel. The system further includes a barrier assembly having one or more intrinsic safety (IS) barriers. Each IS barrier is configured to receive at least one data or power signal, limit an amount of energy in the at least one data or power signal, and output the at least one energy-limited data or power signal. Each IS barrier includes at least one limiter circuit configured to limit the amount of energy in the at least one data or power signal. Each IS barrier is configured to be mounted on the terminal block. Each IS barrier could be configured to provide galvanic isolation between multiple devices or systems coupled to the IS barrier. Each limiter circuit could include a current limiter.

The invention relates to a housing lid for a field device comprising a screw thread, a receiving and transmitting unit, a battery unit, and a communication interface. The screw thread secures the housing lid to the field device. The receiving and transmitting unit is embodied wirelessly to receive information produced by at least one external unit and to transmit information produced by the field device to the external unit. The battery unit supplies the receiving and transmitting unit and/or the field device with electrical energy. The communication interface is in electrical contact with the battery unit, with the receiving and transmitting unit and via a corresponding communication interface of the field device with the field device.

An apparatus, system, and method to manage communications within a network, such as a wireless network and/or at least partially included within a hazardous area, includes creating a master CRC array from master configuration structures, creating a main master CRC value from the master CRC array, receiving a main slave CRC value, and determining if the main master CRC value and the main slave CRC value are different.

An intrinsically-safe handheld field maintenance tool includes a controller, a process communication module, and a display. The process communication module is configured to communicate with a field device using a process communication protocol. The display is coupled to the controller. A user interface module is also coupled to the controller and is configured to receive user input. The controller is configured to detect a user input help request and provide a video output on the display in response to the user input help request.

An apparatus includes a housing, a touch sensor, a display, and a control module. The housing has a body defining a volume to accommodate a process control device and is adapted to withstand a threshold internal pressure greater than an external pressure. The housing further has a transparent portion having first and second surfaces. The touch sensor is disposed adjacent to the second surface of the transparent portion and senses an input received within a minimum distance from the first surface of the transparent portion. The display is disposed adjacent to the touch sensor and displays at least one adjustable variable corresponding to the process control device.

An automation technology field device with at least two connection terminals to which a two-wire line or a four-wire line can be connected, such that a loop current can be supplied to the field device via the connection terminals. A safety device is provided which is used to ensure the electromagnetic compatibility and/or the explosion proofing of the field device, wherein the safety device is connected to each connection terminal via one line each, and wherein at least one current converter arranged around the line is provided, which reads back the loop current in at least one of the two lines between the safety device or parts of the safety device and the connection terminals in a galvanically isolated manner.