- Products & Solutions:
- Industrial Automation and Control Business:
- Application Notes:
- Oil & Gas:
- Two-way Communication Feature of FOUNDATION fieldbus:
- SCADA-RTU Communications Using GPRS:
- Impulse Line Blocking Diagnosis:
- Meter APPF in Gas Pipeline Metering:
- Low Flow Cut-off:
- Vortex Flowmeter in Water/Steam Injection:
- Modbus Communication Functions>
- Two-way Communication Feature of FOUNDATION fieldbus
Two-way Communication Feature of FOUNDATION fieldbus
|Industry||: Oil and Gas|
|Product||: STARDOM Controller FCN, EJX multivariable transmitter|
FOUNDATION fieldbus technology enables all-digital, two-way communications between field devices and control systems. While the advantages of using digital communications for sharing maintenance-related device information with an asset management system are well known, there are other benefits from using the FOUNDATION fieldbus technology. This paper introduces an application that relies on the two-way communications capability of FOUNDATION fieldbus.
Fig.1 System configuration using 4-20mA
|What is 4-20mA?
4-20mA is an analog signal that has been used as a process signal for decades. It is limited
to sending process data.
Fig.2 System configuration using FOUNDATION fieldbus
Process data measured by transmitter (INDEX 1-3), output data calculated on RTU (INDEX 4-6) and configuration parameters set to RTU (INDEX 7-10) are periodically displayed on transmitter's LCD with measurement units and comments.
|What is FOUNDATION fieldbus?
FOUNDATION fieldbus provides all-digital communication. It provides two way communications between devices and their information in addition to process data.
To meet these requirements, Yokogawa Corporation of America proposed using the transmitters' LCD as a substitute for local display panels, reducing the total cost of the ownership (TCO) of the projects.