公开(公告)号：US11821951B2

公开(公告)日：2023-11-21

申请号：US17488515

申请日：2021-09-29

Applicant: Rosemount Inc.

Inventor： Justin Zingsheim ,  Rob LaRoche ,  Kurt Diede

IPC: G01R31/327 ,  H03F3/45 ,  H03K3/037

CPC classification number: G01R31/3278 ,  H03F3/45475 ,  H03K3/037

Abstract: An industrial process field device includes an active component, a switch, a switch monitor, and a controller. The active component may be a sensor configured to sense a process parameter, or a control device configured to control a process of the industrial process. The switch is electrically coupled to first and second terminals. The switch monitor is configured to detect an open or closed state of the switch, and generate a first state output, a second state output, or a chattering state output. An anti-chatter circuit outputs a chatter stabilized state output based on the chattering state output. The controller is configured to set the switch in the open or closed state, and generate a notification based on any one of the first and second state outputs and the chatter stabilized state output that indicates at least one of the current state and a condition of the switch.

公开(公告)号：US20230100648A1

公开(公告)日：2023-03-30

申请号：US17488515

申请日：2021-09-29

Applicant: Rosemount Inc.

Inventor： Justin Zingsheim ,  Rob LaRoche ,  Kurt Diede

IPC: G01R31/327 ,  H03F3/45 ,  H03K3/037

Abstract: An industrial process field device includes an active component, a switch, a switch monitor, and a controller. The active component may be a sensor configured to sense a process parameter, or a control device configured to control a process of the industrial process. The switch is electrically coupled to first and second terminals. The switch monitor is configured to detect an open or closed state of the switch, and generate a first state output, a second state output, or a chattering state output. An anti-chatter circuit outputs a chatter stabilized state output based on the chattering state output. The controller is configured to set the switch in the open or closed state, and generate a notification based on any one of the first and second state outputs and the chatter stabilized state output that indicates at least one of the current state and a condition of the switch.