Abstract: The present invention provides a field device whereby the device's additional information can be transmitted wirelessly without the need for battery replacement or external wiring. The present invention also provides a field device whereby the firmware of a wireless module in the field device can be developed at minimum cost and whereby it can be made easy to link the firmware to applications, such as an asset management system, on the host system side.

Abstract: A signal relay device, a communication network system and an operation system include: a standardized logic interface conversion unit for judging a control system type or a device type and converting a signal to a signal appropriate for a communication network; or a device side logic interface conversion unit for converting a signal from the communication network to a signal appropriate for the control system type or the device type. An operation monitoring station includes a an advanced control block for the control system or the device and transmits a control signal to the communication network.

Abstract: In a front windshield support structure of a vehicle, a windshield support 17 supports the lower end of a front windshield 18 in the upper portion of a reinforcing part 16 of a dashboard upper part 14. The windshield support 17 includes a front-side member 21 and a rear-side member 20 whose upper portions supporting the front windshield 18 are connected to each other and whose lower portions are connected to the dashboard upper part 14. The front-side member 21 is bent into a chevron shape in cross section such that a vertically intermediate part thereof projects forward. The rear-side member 20 is bent into a chevron shape in cross section such that a vertically intermediate part thereof projects rearward. Together, the front-side member 21 and the rear-side member 20 form a box-shaped cross section.

Abstract: A signal relay device, a communication network system and an operation system include: a standardized logic interface conversion unit for judging a control system type or a device type and converting a signal to a signal appropriate for a communication network; or a device side logic interface conversion unit for converting a signal from the communication network to a signal appropriate for the control system type or the device type. An operation monitoring station includes a advanced control block for the control system or the device and transmits a control signal to the communication network.

Abstract: A field device is connected to a communication apparatus installed in a communication system. The communication apparatus performs radio communication with a control apparatus which controls a plant where the field device is installed, in accordance with a standardized communication protocol, and relays the communication between the field device and the control apparatus.

Abstract: In a front windshield support structure of a vehicle, a windshield support 17 supports the lower end of a front windshield 18 in the upper portion of a reinforcing part 16 of a dashboard upper part 14. The windshield support 17 includes a front-side member 21 and a rear-side member 20 whose upper portions supporting the front windshield 18 are connected to each other and whose lower portions are connected to the dashboard upper part 14. The front-side member 21 is bent into a chevron shape in cross section such that a vertically intermediate part thereof projects forward. The rear-side member 20 is bent into a chevron shape in cross section such that a vertically intermediate part thereof projects rearward. Together, the front-side member 21 and the rear-side member 20 form a box-shaped cross section.

Abstract: A know-how service system capable of handling integrally a life cycle management extended from installment to operation, maintenance, and scrapping of various equipments in a facility such as a plant, a factory, a hospital, a school, a vessel, or the like by utilizing a know-how scattered and held individually via a network, includes a know-how service providing portion, a know-how service utilizing portion, a know-how service applying portion, and a network to which respective portions are connected.

Abstract: Process control systems may include one or more diagnostic systems and/or processes. In particular implementations, a diagnostic system and process for a field instrument may include the ability to divide a signal input range into a plurality of zones with respect to an input axis or a time axis, measure input response characteristics for a zone with the field instrument, and store measurement data points for the zone in memory of the field instrument. The diagnostic system and process may also include the ability to transmit the measurement data points for the zone to a host application and, while transmitting the measurement data points for the zone, measure input response characteristics for a second zone with the field instrument.

Abstract: A memory updating system for a field device involves a fieldbus, one or more field devices that incorporate a nonvolatile memory and are connected to the fieldbus, a host system that is directly or indirectly connected to the fieldbus and transmits an updating instruction and updating data to one of the field devices in order to update the nonvolatile memory of the field device, and a current control circuit that controls a current provided from the fieldbus. The current control circuit increases the current provided from the fieldbus to a value greater than a normal value before the field device erases data stored in the nonvolatile memory, and returns the current provided from the fieldbus to the normal value after the field device completes the erasing of the data stored in the nonvolatile memory.

Abstract: The present invention provides a field device whereby the device's additional information can be transmitted wirelessly without the need for battery replacement or external wiring. The present invention also provides a field device whereby the firmware of a wireless module in the field device can be developed at minimum cost and whereby it can be made easy to link the firmware to applications, such as an asset management system, on the host system side.

Abstract: A signal transmission apparatus, to which at least one field device is connected and which transmits a signal obtained from the field device to a host computer, has at least one input terminal to which a signal transmitted from the field device is inputted, a signal processing unit which generates a communication frame in conformity with a wireless communication protocol based on a signal inputted through the input terminal, and a wireless transmission unit which transmits by wireless the communication frame to the host computer.

Abstract: The present invention provides an off-line diagnosis system whereby the measurement resolution (number of measurement points) can be increased in order to obtain detailed input-output characteristics, and step response characteristics can be obtained at a sufficient frequency and more efficiently, without expanding the physically limited memory capacity of a field instrument or host application.

Abstract: Process control systems may include one or more diagnostic systems and/or processes. In particular implementations, a diagnostic system and process for a field instrument may include the ability to divide a signal input range into a plurality of zones with respect to an input axis or a time axis, measure input response characteristics for a zone with the field instrument, and store measurement data points for the zone in memory of the field instrument. The diagnostic system and process may also include the ability to transmit the measurement data points for the zone to a host application and, while transmitting the measurement data points for the zone, measure input response characteristics for a second zone with the field instrument.

Abstract: A memory updating system for a field device involves a fieldbus, one or more field devices that incorporate a nonvolatile memory and are connected to the fieldbus, a host system that is directly or indirectly connected to the fieldbus and transmits an updating instruction and updating data to one of the field devices in order to update the nonvolatile memory of the field device, and a current control circuit that controls a current provided from the fieldbus. The current control circuit increases the current provided from the fieldbus to a value greater than a normal value before the field device erases data stored in the nonvolatile memory, and returns the current provided from the fieldbus to the normal value after the field device completes the erasing of the data stored in the nonvolatile memory.

Abstract: A valve positioner and current-to-pneumatic converter having a reduced number of components and increased current allocation to a current-to-pneumatic conversion module therein, wherein current signals containing set point information are applied to a digital computation circuit through input terminals which carries out control computation to control valve openings so that each valve opening agrees with each corresponding set point; and a current-to-pneumatic conversion module converts the control outputs from the digital computation circuit into pneumatic signals; and further comprising a power voltage generator that generates an internal power voltage from the current signal; a variable impedance circuit connected in series to the power voltage generator and in parallel to the current-to-pneumatic conversion module; and an impedance control circuit that controls the impedance of the variable impedance circuit.

Abstract: A new fitting indicating mechanism in screw type connector housings is provided. Said mechanism comprises a male connector housing having an engaging portion; a female connector housing having cavity means for receiving said engaging portion therewithin; a tubular body having a bore contiguous to said cavity means and a plurality of flexible support arms extending into said bore toward a direction opposite to said female connection housing; and an indicator rod held to extend within said cavity means and said bore, said indicator rod being biased toward the male connector housing such that said flexible support arms covers the indicator rod when fitting engagement of both housing connectors is not completed but pushes open said flexible support arms upon completion thereof such that said indicator rod is exposed out the flexible arms.

Abstract: A new type connector set is provided. Its male connector member includes a male housing having an engaging portion in the form of a nut. The female connector member includes a female housing with an opening to receive said male housing therethrough, a support member fixed within said female housing and having a chamber to receive the engaging portion of the male housing in it and a bolt rotatably extending within said chamber to be screwed into the nut. Said bolt is prevented from moving in an axial direction thereof and has a constricted portion in it.