Yokogawa Electric Corporation

Dresser, Inc.

Kazuhiro Hashizumi

Yoji Saito

Alex J Legere

Hongli Du

Shunsuke Ebisumoto

Mako Umemoto

Syouji Igarashi

Yoshiharu Shiratori

There is provided a field device for downloading a new software through a field bus from a host system and replacing a current software which is currently executed with the new software. The field device includes: a history information generation and management section which generates and stores history information of the current software when the new software is downloaded from the host system.

Field device and field device software update system therewith

A sensitivity adjustment device may include: a light receiver configured to receive a reflected light that has been emitted from a light emitting unit and reflected by a reflector, the light receiver being configured to convert the reflected light into an analog electrical signal; an A/D converter configured to convert the analog electrical signal into a digital signal; a threshold value calculator configured to calculate a threshold value with reference to a voltage level of the digital signal that has been sequentially converted and output by the A/D converter; and a determination unit configured to compare a high voltage level of the digital signal with the threshold value.

Sensitivity adjustment device

A device information display apparatus may include a device information reception unit that acquires device information of a device through a field bus, the device being connected to the field bus, a display unit that displays the device information, which has been acquired by the device information reception unit, on a screen, a display switch unit that switches the devices of which the display unit displays the device information, switching of the devices being performed according to a predetermined order, and a manipulation unit that receives a manipulation instructing the switching of the devices by the display switch unit, the manipulation unit outputting an instruction signal. The display switch unit may receive the instruction signal and switches the devices in one of a forward direction and a reverse direction of the predetermined order based on a direction of the manipulation, which has been received by the manipulation unit.

Device information display apparatus and device information display method

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.

Growing community of inventors

Musashino, Japan

Kazuhiro Hashizumi