公开(公告)号：US07234084B2

公开(公告)日：2007-06-19

申请号：US10781372

申请日：2004-02-18

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: G06F11/00

CPC classification number: G05B23/0229

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 translation: 诊断工具具有基于分组的网络介质附接单元，测量接口，网络接口和用于从网段读取DLPDU并用于同时测量该段上的DLPDU的微处理器。 如果微处理器读取测量数据时DLPDU在网段上仍然有效，则测量数据与存储的DLPDU相关联。 诊断工具利用当前活动的属性来确定DLPDU的状态。

公开(公告)号：US07496099B2

公开(公告)日：2009-02-24

申请号：US10903698

申请日：2004-07-30

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: H04L12/28 ,  H04L12/50

CPC classification number: H04L67/325 ,  H04L12/1881

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 translation: 过程控制网络上的设备以周期性的间隔发送调度的消息，并在调度的消息传输之间发送非调度的消息。 通过从每次定时器递增的下一个调度的事件时间减去当前定时器值来产生动态时间剩余值。 如果发送非调度消息所需的时间大于剩余时间值，则不会发送消息。

公开(公告)号：US07444427B2

公开(公告)日：2008-10-28

申请号：US10903399

申请日：2004-07-30

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: G06F13/00

CPC classification number: H04L1/188

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 translation: 如果正在接收或已经接收到但未被读取或确认的消息，则网络中的设备中的通信控制器自动防止响应于来自设备的CPU的发送请求而将数据传输到网络。

公开(公告)号：US07689687B2

公开(公告)日：2010-03-30

申请号：US10903317

申请日：2004-07-30

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: G06F15/173

CPC classification number: H04L12/4135 ,  G05B2219/31135 ,  H04J3/0697 ,  H04L7/046 ,  H04L12/417 ,  H04L43/106 ,  H04L2012/40221 ,  H04L2012/4026

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 translation: 过程控制系统中的设备通过通信介质段上的数据消息进行通信。 每个设备包括通信控制器，其自动地对与所接收和发送的消息相关联的事件进行戳记。

公开(公告)号：US07058089B2

公开(公告)日：2006-06-06

申请号：US10781374

申请日：2004-02-18

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: H04J3/06

CPC classification number: H04J3/0697 ,  H04J3/0638 ,  H04J3/0655 ,  H04J3/0664

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.

Abstract translation: 该系统具有与时间主设备的主时钟同步的控制中心，时间主设备和多个分布式时间从站现场设备。 时间主设备周期性地发送时间分布数据单元。 每个从站现场设备具有定时器调整元件，固定速率时钟和可变时钟。 定时器调整元件计算主时钟和固定速率时钟之间的频率比，并使用频率比来计算调整系数，以调整每个现场设备的局部时间感，使得每个现场设备的时间戳同步到 主时钟。

公开(公告)号：US08060668B2

公开(公告)日：2011-11-15

申请号：US10936421

申请日：2004-09-08

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: G06F3/00

CPC classification number: G06F13/385

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 translation: 过程控制系统中的设备通过通信介质段上的数据消息进行通信。 每个设备包括通信控制器，其包括数据队列和接收到的消息对象的队列。 数据队列存储在通信介质上接收的多个消息。 接收到的消息对象包含有关数据队列中相应消息的信息。

公开(公告)号：US07779163B2

公开(公告)日：2010-08-17

申请号：US10936629

申请日：2004-09-08

Applicant: Brian A. Franchuk ,  Roger R. Benson ,  Stephen A. Zielinski

Inventor： Brian A. Franchuk ,  Roger R. Benson ,  Stephen A. Zielinski

IPC: G06F15/16

CPC classification number: G05B19/4148 ,  G05B2219/33273 ,  G05B2219/34413 ,  G06F9/546 ,  H04L69/12

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 translation: 过程控制系统中的设备通过通信介质段上的数据消息进行通信。 每个设备包括通信控制器，其维持从通信介质接收和发送的事件的发生顺序。 通信控制器包括发生次序识别（OOO_ID）计数器和事件队列存储器。 事件队列存储器顺序地存储由通信控制器处理的每个事件的事件类型标识符。 OOO_ID计数器提供一个OOO_ID来与每个事件类型标识符相关联。

公开(公告)号：US07694061B2

公开(公告)日：2010-04-06

申请号：US10936142

申请日：2004-09-08

Applicant: Brian A. Franchuk ,  Roger R. Benson

Inventor： Brian A. Franchuk ,  Roger R. Benson

IPC: G06F13/36

CPC classification number: H04L47/32 ,  G06F9/451 ,  H04L12/403 ,  H04L49/901 ,  H04L49/9073 ,  H04L2012/40221

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 translation: 过程控制系统中的设备通过通信介质段上的数据消息进行通信。 每个设备包括通信控制器，其包括接收的数据存储器和多个接收到的消息对象。 当接收到消息时，接收到的消息对象被激活，并且接收的数据存储器中的写指针的初始位置被存储在所接收的消息对象中。 在消息接收期间，如果硬件设备确定消息被忽略，则接收到的消息对象被去激活，从而防止将消息进一步写入接收的数据存储器。 然后，优选地，写入指针返回到其存储在所接收的消息对象中的初始位置。

公开(公告)号：US08774204B2

公开(公告)日：2014-07-08

申请号：US11526560

申请日：2006-09-25

Applicant: Stephen A. Zielinski ,  Thomas M. Bell ,  Anthony D. Ferguson ,  Brian A. Franchuk

Inventor： Stephen A. Zielinski ,  Thomas M. Bell ,  Anthony D. Ferguson ,  Brian A. Franchuk

IPC: H04L12/28 ,  H04L12/42

CPC classification number: H04L12/42 ,  H04L12/40032 ,  H04L12/413 ,  H04L2012/40221

Abstract: A handheld field maintenance bus monitor is provided. The handheld field maintenance bus monitor is coupleable to at least one process communication loop, and is configured to capture and store a selected quantity of digital communication observed on the process communication loop during a capture period. Optionally, the handheld field maintenance bus monitor may be configured to couple to and interact with process communication loops of at least two different process communication protocols, such as HART® and FOUNDATION™. A method of analyzing captured and stored communication data is also provided.

Abstract translation: 提供了一种手持式现场维护总线监视器。 手持式现场维护总线监视器可耦合到至少一个进程通信环路，并且被配置为在捕获周期期间捕获并存储在进程通信环路上观察到的选定数量的数字通信。 可选地，手持式现场维护总线监视器可以被配置为耦合到至少两个不同过程通信协议（例如HART和FOUNDATION TM）的过程通信环路并与之交互。 还提供了分析捕获和存储的通信数据的方法。

公开(公告)号：US07609713B2

公开(公告)日：2009-10-27

申请号：US11238670

申请日：2005-09-29

Applicant: Anthony D. Ferguson ,  Brian A. Franchuk

Inventor： Anthony D. Ferguson ,  Brian A. Franchuk

IPC: H04L12/42

CPC classification number: H04L43/0864 ,  H04L12/417 ,  H04L41/12 ,  H04L43/16

Abstract: A signal measured on a network is associated with one of a plurality of communication devices connected to the network. The designation address of an active communication device that is scheduled to communicate next is determined. The next received signal on the network is associated with the designation address of the active communication device if the signal is received within a maximum response time.

Abstract translation: 在网络上测量的信号与连接到网络的多个通信设备中的一个相关联。 确定计划进行下一个通信的活动通信设备的指定地址。 如果在最大响应时间内接收到信号，则网络上的下一个接收信号与有源通信设备的指定地址相关联。