公开(公告)号：WO1998014850A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017009

申请日：1997-09-23

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  TETZLAFF, David, E. ,  WARRIOR, Jogesh ,  MAALOUF, Gabriel, A.

IPC: G05B19/418

CPC classification number: G05B19/0421 ,  G05B15/02 ,  G05B19/4185 ,  G05B2219/25145 ,  Y02P90/18

Abstract: The present invention includes a process control instrument (100) having an improved data bus protocol for facilitating communications between master and slave nodes. The process control instrument (100) includes a microprocessor (200) operating in accordance with the SPI data bus protocol, first and second peripheral devices (204, 206), and a data bus (220) coupled to the microprocessor and the first and second peripheral devices. The improved data bus protocol used in the process control instruments of the present invention provides numerous advantages such as reduced printed circuit board space requirements and greater interchangeability of peripheral and master node components.

Abstract translation: 本发明包括具有改进的数据总线协议以便于主节点和从节点之间的通信的过程控制仪器（100）。 过程控制仪器（100）包括根据SPI数据总线协议操作的微处理器（200），第一和第二外围设备（204,206）以及耦合到微处理器的数据总线（220）和第一和第二 外围设备。 在本发明的过程控制仪器中使用的改进的数据总线协议提供了许多优点，例如减少了印刷电路板空间要求以及外围和主节点组件的更大可互换性。

公开(公告)号：EP0864122A1

公开(公告)日：1998-09-16

申请号：EP97942672.0

申请日：1997-09-23

Applicant: ROSEMOUNT INC.

Inventor： TETZLAFF, David, E. ,  WARRIOR, Jogesh ,  MAALOUF, Gabriel, A.

IPC: G05B15 ,  G05B19

CPC classification number: G05B19/0421 ,  G05B15/02 ,  G05B19/4185 ,  G05B2219/25145 ,  Y02P90/18

Abstract: The present invention includes a process control instrument (100) having an improved data bus protocol for facilitating communications between master and slave nodes. The process control instrument (100) includes a microprocessor (200) operating in accordance with the SPI data bus protocol, first and second peripheral devices (204, 206), and a data bus (220) coupled to the microprocessor and the first and second peripheral devices. The improved data bus protocol used in the process control instruments of the present invention provides numerous advantages such as reduced printed circuit board space requirements and greater interchangeability of peripheral and master node components.

公开(公告)号：EP0864122B1

公开(公告)日：2004-04-14

申请号：EP97942672.3

申请日：1997-09-23

Applicant: ROSEMOUNT INC.

Inventor： TETZLAFF, David, E. ,  WARRIOR, Jogesh ,  MAALOUF, Gabriel, A.

IPC: G05B19/418 ,  G05B15/02

CPC classification number: G05B19/0421 ,  G05B15/02 ,  G05B19/4185 ,  G05B2219/25145 ,  Y02P90/18

Abstract: The present invention includes a process control instrument (100) having an improved data bus protocol for facilitating communications between master and slave nodes. The process control instrument (100) includes a microprocessor (200) operating in accordance with the SPI data bus protocol, first and second peripheral devices (204, 206), and a data bus (220) coupled to the microprocessor and the first and second peripheral devices. The improved data bus protocol used in the process control instruments of the present invention provides numerous advantages such as reduced printed circuit board space requirements and greater interchangeability of peripheral and master node components.