Abstract: An example of an apparatus includes an application engine to execute an application. The apparatus includes a first communication interface to communicate with a first peripheral device. The apparatus includes a second communication interface to communicate with a second peripheral device. The apparatus includes an orchestration engine in communication with the application engine, the first communication interface, and the second communication interface. The orchestration engine is to receive an application command from the application and to broadcast the application command to the first peripheral device and the second peripheral device. The orchestration engine is to receive a device command from the first peripheral device or the second peripheral device, wherein the device command is to control the application.

Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.

Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.

Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.

Abstract: A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.

Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.

Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.

Abstract: A portable field maintenance tool may perform one or more tasks, such as communicating with a field device, powering a field device, diagnosing a field device, or diagnosing a communication link in a plant environment to which a field device is connected. The portable field maintenance tool may interact with field devices configured according to a number of different communication protocols, such as the HART protocol and the Fieldbus protocol. The portable field maintenance tool may be energy limited and fault tolerant, and may operate in compliance with Intrinsic Safety standards, enabling use of the portable field maintenance tool in hazardous areas.

Abstract: A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.

Abstract: A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.

Abstract: A connector assembly for a portable field device testing includes a two-wire communication line to provide communication between a handheld maintenance tool and a field device, a first two-prong plug to provide power and communication signals to the field device and a shunt plug to provide power to the field device using the two-wire communication line.

Abstract: Methods for improving selective oxidation of polysilicon against silicon nitride in a process chamber are provided herein. In some embodiments, a method of selectively oxidizing a substrate disposed within a process chamber includes exposing a substrate having an exposed polysilicon layer and an exposed silicon nitride layer to a hydrogen-containing gas; heating the substrate to a process temperature of at least about 850 degrees Celsius; adding an oxygen containing gas to the process chamber while maintaining the substrate at the process temperature to create a mixture of the hydrogen-containing gas and the oxygen-containing gas; and exposing the substrate to the mixture while at the process temperature to selectively form an oxide layer atop the polysilicon layer substantially without forming an oxide layer atop the silicon nitride layer.

Abstract: Devices in a process control system communicate by data messages over a communication medium segment. Each device includes a communication controller that maintains an order of occurrence of events received from and transmitted to a communication medium. The communication controller includes an order of occurrence identification (OOO_ID) counter and an event queue memory. The event queue memory sequentially stores an event type identifier for each event that is processed by the communication controller. The OOO_ID counter provides an OOO_ID to associate with each event type identifier.

Abstract: Devices in a process control system communicate by data messages over a communication medium segment. Each device includes a communication controller that includes a received data memory and a plurality of received message objects. When a message is received, a received message object is activated, and the initial position of a write pointer in the received data memory is stored in the received message object. During message reception, if a hardware device determines that the message is to be ignored, the received message object is deactivated, thereby preventing further writing of the message to the received data memory. The write pointer is then preferably returned to its initial position as stored in the received message object.

Abstract: Devices in a process control system communicate by data messages over a communication medium segment. Each device includes a communication controller that includes a data queue and a queue of received message objects. The data queue stores a plurality of messages received on the communication medium. The received message objects contain information about a corresponding message in the data queue.

Abstract: Devices in a process control system communicate by data messages over a communication medium segment. Each device includes a communication controller that automatically time stamps events associated with received and transmitted messages.

Abstract: A device on a process control network transmits scheduled messages at periodic intervals and unscheduled messages between scheduled message transmissions. A dynamic time remaining value is produced by subtracting a current timer value from a next scheduled event time each time the timer is incremented. If the time required to transmit an unscheduled message is greater than the time remaining value, the message is not transmitted.

Abstract: A communication controller in a device on a network automatically prevents transmission of data onto the network in response to a transmit request from a CPU of the device if a message is being received or has been received but not read or acknowledged.

Abstract: A diagnostic tool has a packet based network medium attachment unit, a measurement interface, a network interface, and a microprocessor for reading DLPDUs from a network segment and for taking simultaneous measurements of DLPDUs on the segment. The measurement data is associated with a stored DLPDU if the DLPDU is still active on the network segment when the measurement data is read by the microprocessor. The diagnostic tool utilizes a currently active attribute to determine the status of a DLPDU.

Abstract: The system has a control center, a time master device and a plurality of distributed, time slave field devices in synchronization with a master clock of the time master device. The time master device periodically transmits a time distribution data unit. Each time slave field device has a timer adjustment element, a fixed rate clock and a variable clock. The timer adjustment element calculates a frequency ratio between the master clock and the fixed rate clock and uses the frequency ratio to calculate adjustment coefficients to adjust a local sense of time for each field device, such that a time stamp of each field device is synchronized to the master clock.