Abstract:
The present invention concerns revalidation of a compiler of control language for use in an industrial control system, each time the compiler has been used. In particular, the invention reveals a method to revalidate a compiler for compilation of a user-written program, which is intended for safety control of real world entities. The user-written program subject to compilation by the compiler is intended for execution in a device, which comprises functionality that adds safety features to an industrial control system. The invention ensures that no fault is introduced into the device due to error in the compiler code. Such an error may, for instance, occur during distribution of the compiler code or due to failure in a computer's memory or failure on a disk where the compiler code is stored. Hence, the invention ensures that no such fault is introduced into the control of real world entities which otherwise could lead to accidents that harm people or cause damage to the environment.
Abstract:
A fuse base connection terminal apparatus comprises a base (1). At least one conductive copper bar (2) is arranged on the base (1). A connection bolt (3) and a connection nut (4) used for selectively connecting to an external cable are arranged in the base. A groove (12) used for mounting the connection nut (4) is arranged under the conductive copper bar (2) on the base. The connection nut (4) is mounted in the groove (12). The connection bolt (3) passes, under the groove (12), through the connection nut (4) and the conductive copper bar (2) sequentially. A top end of the connection bolt (3) extends above the conductive copper bar (2). The apparatus has a simple structure, is convenient and practical, and can provide two different types of cable connection manners, thereby meeting different requirements, saving materials, and reducing costs.
Abstract:
A connection assembly for a fuse base connection terminal (2) comprises a base (1) and a connection terminal (2) arranged on the base (1). A connection hole (21) is arranged on the connection terminal (2). The connection assembly also comprises a support piece (3) plugged into the connection terminal (2). The support piece (3) comprises an accommodation groove (31) used for accommodating a nut (4) or a bolt (5). A side surface of the accommodation groove (31) is provided with an opening (32). A bottom of the accommodation groove (31) is provided with a through hole (37). A position corresponding to the support piece (3) on the base (1) is provided with a bolt mounting hole (11). The bolt mounting hole (11), the connection hole (21) and the through hole (37) are on the same axis. Because the support piece (3) that can be plugged into the connection terminal (2) is arranged and the nut (4) or the bolt (5) can be put into the support piece (3), a user is free to choose to put the nut (4) or the bolt (5) into the support piece (3) to connect of the connection terminal (2) to a cable.
Abstract:
The present invention relates to a valve positioner (1) comprising: a valve operation information unit adapted to obtain operational information about a valve (14); a processing unit adapted to prepare a communication message comprising the operational information about the valve (14); a wireless transmitter adapted for transmission of a wireless communication signal comprising the communication message to a central valve monitoring unit (6); and an antenna adapted to transmit the wireless communication signal. The invention also relates to a central valve monitoring unit (6), a valve monitoring system (10), as well as to a method of using a valve positioner (1) for upgrading a valve monitoring system (10). (Fig 3)
Abstract:
The invention relates to an improved method in an industrial safety system for controlling a process or equipment. An industrial safety system comprises components with safety devices wherein the safety system enables signals to be generated as a result of an event or alarm. The method and system uses a cause and effect matrix (CEM) with automated links between each event or alarm and an effect or an action to be taken upon receipt of said event or alarm signal due to the event. In an online view (1, 51, 61) of the improved cause and effect matrix, at least one effect cell (16) of the cause and effect matrix is arranged with a first executable link for a device (14) represented by the at least one effect cell. The online viewer of the cause and effect matrix is further arranged with an application for generating and displaying a first control arranged to display a visual marker (21) in the case where the at least one effect cell has received a signal to trip a device (14) linked to the at least one effect cell. An executable link or a faceplate (50) can be opened from the on-line view displaying the marked at least one effect cell and used to operate the device (14) of the effect so marked. A system and a computer program are also described.
Abstract:
A wireless vibration sensor is disclosed suitable for connection to a distributed industrial control system (50) arranged with a wireless network (27) for communication of process data or control information. The wireless vibration sensor comprises at least one a sensor (10), a wireless radio transmitter (14), and a base part (1) or for mounting it firmly on an equipment (M) or a structure. The wireless sensor is arranged with a battery and a power storage device. A method for powering up the wireless sensor during active cycles is also described.
Abstract:
A method for navigating in a process control system. The process control system includes a graphical user interface with a plurality of graphic objects each associated with a process control object wherein a graphic object has an active link for monitoring or controlling at least one physical control object. The graphical user interface is arranged with navigation means so that a user can indicate or select one point in a process section on the graphical user interface as a first user input and increase, in a continuous animated movement, the scale at which the point and its immediate surroundings in the process section are displayed. Further, the zooming-in or zooming out continues displaying a view of the indicated or otherwise selected point on the graphical user interface and scaling it up continuously until a predetermined scale is reached or, until a second user input is received.