Abstract: An apparatus and method including a fieldbus interface board connected to a fieldbus line. The fieldbus interface board includes a main control unit controlling an overall operation of the board. A main memory inputs and outputs data required for the operation of the main control unit, wherein the main control unit controls the main memory. A fieldbus control unit controls transmission and reception of fieldbus data. A buffer memory buffers the fieldbus data to be transmitted to the fieldbus line or to be received from the fieldbus line. A fieldbus access unit transmits the fieldbus data to the fieldbus line or receives the fieldbus data from the fieldbus line, wherein the fieldbus control unit controls the buffer memory and the fieldbus access unit.

Abstract: A field bus interface board is disclosed. The field bus interface board installed in a computer and connected to a field bus line has a main controller for controlling the entire operation of the field bus interface board. A field bus controller controls a data transmission and reception though the field bus line. A dual-port memory is shared between the computer and the main controller for exchanging data with the computer. A buffer memory buffers data transmitted to the field bus line or received from the field bus line, under the control of the field bus controller. A field bus interfacing means transmits data to the field bus line or receives data from the field bus line, under the control of the field bus controller.

Abstract: An apparatus and method including a fieldbus interface board connected to a fieldbus line. The fieldbus interface board includes a main control unit controlling an overall operation of the board. A main memory inputs and outputs data required for the operation of the main control unit, wherein the main control unit controls the main memory. A fieldbus control unit controls transmission and reception of fieldbus data. A buffer memory buffers the fieldbus data to be transmitted to the fieldbus line or to be received from the fieldbus line. A fieldbus access unit transmits the fieldbus data to the fieldbus line or receives the fieldbus data from the fieldbus line, wherein the fieldbus control unit controls the buffer memory and the fieldbus access unit.

Abstract: A field bus interface board is disclosed. The field bus interface board installed in a computer and connected to a field bus line has a main controller for controlling the entire operation of the field bus interface board. A field bus controller controls a data transmission and reception though the field bus line. A dual-port memory is shared between the computer and the main controller for exchanging data with the computer. A buffer memory buffers data transmitted to the field bus line or received from the field bus line, under the control of the field bus controller. A field bus interfacing means transmits data to the field bus line or receives data from the field bus line, under the control of the field bus controller.