Measurement arrangement for field devices
AssigneeMetso Automation Oy
InventorsTimo P. Manninen, Sami Hakulinen
Life of this patent
Estimating the term…
Abstract
Disclosed are sensors to measure predetermined process variables in the process pipeline and to transmit measurement data over wired automation lines to the automation system for process automation purposes. A wireless measurement transmitter is connected to the wired automation line between the sensor and the automation system. WMT is configured to intercept or tap the measurement data transferred on the automation line and to transmit the tapped measurement data over a wireless connection to an intelligent control valve for local control and/or diagnosis procedures performed at the intelligent control valve.
Claims15
A measurement arrangement for a field device, particularly a control valve, in a process automation system comprising,
- a measuring device connected to a process automation computer system over a first wired connection and arranged to measure a predetermined process variable in a process and send measurement data to the process automation computer system over the first wired connection,
- an field device connected to the process automation computer system over a second connection,
- a wireless tapping transmitter connected to the first wired connection and arranged to tap the measurement data transferred on the first wired connection and to transmit the tapped measurement data over a third wireless connection to the intelligent field device for local control and/or diagnosis procedures performed at the intelligent field device.
An intelligent field device, particularly a control valve, connected to a process automation computer system over a second wired connection and comprising a wireless receiver arranged to receive from a wireless tapping transmitter over a third wireless connection a process variable measurement data tapped from a first wired connection between the process automation system and a measurement device sensing the process variable in the process, and the intelligent field further comprising a processing unit arranged to use the received tapped measurement data for controlling and/or diagnosing the operation of the intelligent field device or any component or subprocess thereof.
A wireless transmitter, comprising
- a first interface configured to be connected to a first wired connection between a process automation system and a measurement device sensing a predetermined process variable in a process,
- said wireless transmitter being arranged to tap measurement data transferred on the first wired connection and to transmit the tapped measurement data over a third wireless connection to an intelligent field device, particularly a control valve, which is connected to a second wired connection, to be used in local control and/or diagnosis procedures performed at the intelligent field device.
Dependencies are inferred from the claim text.