As fieldbus market narrows, user experience widens - Confidence in fieldbuses is growing; many users say they are planning to implement projects in the near future

摘要

As fieldbus market narrows, user experience widens. A recent fieldbus survey conducted by the ARC Advisory Group under the direction of Larry O'Brien documents the movement of fieldbus from the 'pilot application' phase to an expanded presence in larger and mission critical applications. It also shows that the process automation market has essentially narrowed down to two choices, Profibus and Fieldbus Foundation, although there is significant interest in the integration of existing HART devices at the I/O level with installed control systems.