Patent ID: 11928081
Assignee: FISCHER CONTROLS INTERNATIONAL LLC
Field: Computer technology (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 19:
20. A control system for a valve or other flow control device, the control system comprising:
a processor device local to the valve or other flow control device;
a memory local to the valve or other flow control device and in communication with the processor device, the memory comprising a buffer and a fixed maximum capacity; and
one or more communication ports;
wherein the processor device is configured to execute instructions stored in the memory to perform operations comprising:
receiving signals at the one or more communication ports corresponding to events for the valve or other flow control device;
over a time interval, counting a first quantity of the events that are associated with a first event type based on the signals received at the one or more communication ports, the first event type comprising an operational alarm, a malfunction, a recovery, or a security alarm;
over the time interval, storing in the buffer a temporary record of the first quantity of the events that are associated with the first event type;
over the time interval, determining that the first quantity of the events that are associated with the first event type exceeds a threshold quantity;
after the time interval, storing in the memory outside of the buffer a record of the first event type over the time interval, wherein the record of the first event type over the time interval comprises a timestamp associated with one of the events that are associated with the first event type and an indication of the first quantity of the events that are associated with the first event type;
after the time interval, flushing the buffer to clear the temporary record of the first quantity of the events that are associated with the first event type from the buffer; and
operating the valve or other flow control device based on the record of the first event type over the time interval.