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US 6,862,547 B2Granted
Control device test system with a remote switch activation
AssigneesSaudi Arabian Oil Company, Fisher Controls International LLC
InventorsJimmie L. Snowbarger, Riyaz M. Ali, Patrick S. Flanders
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Abstract
A control device test system including an electrical switch and a device controller, wherein the device controller has a processor, a memory coupled to the processor, and an auxiliary input coupled to the processor and adapted to receive a binary signal from the electrical switch. A routine is stored in the memory of the processor and is adapted to be executed on the processor to cause a control device test to be performed in response to the receipt of the binary signal at the input.
Claims28
A control device test system comprising:
- a valve controller having:
- a processor;
- a memory coupled to the processor;
- an auxiliary input coupled to the processor and adapted to receive a binary signal;
- and
- a routine stored in the memory end adapted to be executed on the processor to cause a control device test to be performed in response to the receipt of the binary signal at the auxiliary input;
- and
- an electrical switch, including a push button, coupled to the auxiliary input so as to directly connect the electrical switch to the processor, wherein the electrical switch, responsive to the push button being actuated, generates the binary signal to initiate the control device test of the valve controller, wherein the control device test includes a partial stroke test of a control device.
5 more elements
A control device test system comprising:
- a valve controller having:
- a processor;
- a memory coupled to the processor;
- an auxiliary input coupled to the processor and adapted to receive a binary signal;
- and
- a routine stored in the memory and adapted to be executed on the processor to cause a control device test to be performed in response to the receipt of the binary signal at the auxiliary input;
- and
- an electrical switch, including a push button, coupled to the auxiliary input so as to directly connect the electrical switch to the processor, wherein the electrical switch, responsive to the push button being actuated, generates the binary signal to initiate the control device test of the valve controller;
- wherein the electrical switch is located remote from the valve controller;
- wherein the electrical switch is mounted on a control device;
- wherein the control device comprises an emergency shutdown device which is an emergency shutdown valve, and wherein the control device test includes a partial stroke test of the emergency shutdown valve.
8 more elements
An emergency shutdown valve test system comprising:
- an emergency shutdown valve controller having:
- a processor;
- a memory coupled to the processor;
- an auxiliary contact coupled to the processor and adapted to receive a binary signal, wherein the binary signal has a predetermined time threshold;
- and
- a routine stored in the memory and adapted to be executed on the processor to cause an emergency shutdown valve test to be performed in response to the receipt of the binary signal at the auxiliary contact;
- a housing enclosing the emergency shutdown valve controller;
- and
- an electrical switch, including a push button, located external of the housing, and coupled to the auxiliary contact so as to directly connect the electrical switch to the processor, wherein the electrical switch, responsive to the push button being actuated, generates the binary signal to initiate the emergency shutdown valve test of the emergency shutdown valve controller, wherein the emergency valve test includes a partial stroke test of the emergency shutdown valve controller.
6 more elements
An emergency shutdown valve test system comprising:
- an emergency shutdown valve controller having:
- a processor;
- a memory coupled to the processor;
- an auxiliary contact coupled to the processor and adapted to receive a binary signal, wherein the binary signal has a predetermined time threshold;
- and
- a routine stored in the memory and adapted to be executed on the processor to cause an emergency shutdown valve test to be performed in response to the receipt of the binary signal at the auxiliary contact;
- a housing enclosing the emergency shutdown valve controller;
- and
- an electrical switch located external of the housing, and coupled to the auxiliary contact so as to be operably connected to the processor, wherein the electrical switch generates the binary signal to initiate the emergency shutdown valve test;
- wherein the emergency shutdown valve test includes a partial stroke test for an emergency shutdown valve.
7 more elements
Dependencies are inferred from the claim text.