CN1592224B - 多协议手持式现场维护工具的数据传输方法 - Google Patents
多协议手持式现场维护工具的数据传输方法 Download PDFInfo
- Publication number
- CN1592224B CN1592224B CN2004100447011A CN200410044701A CN1592224B CN 1592224 B CN1592224 B CN 1592224B CN 2004100447011 A CN2004100447011 A CN 2004100447011A CN 200410044701 A CN200410044701 A CN 200410044701A CN 1592224 B CN1592224 B CN 1592224B
- Authority
- CN
- China
- Prior art keywords
- voltage
- network
- ring
- instrument
- field maintenance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000012423 maintenance Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 title abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 37
- 238000004886 process control Methods 0.000 claims abstract description 32
- 230000008569 process Effects 0.000 abstract description 14
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 8
- 238000003745 diagnosis Methods 0.000 description 6
- 230000015654 memory Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/18—Protocol analysers
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25151—Check appropriate protocol voltage levels
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31129—Universal interface for different fieldbus protocols
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36159—Detachable or portable programming unit, display, pc, pda
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/4026—Bus for use in automation systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Communication Control (AREA)
Abstract
提供了一种利用多协议本质安全的手持式现场维护工具(22)来防止不兼容网络上的不安全传输的方法。优选地,所述方法包括:当在一组上检测或指示了网络连接时,检查两组网络连接(24a,24b,24c)上的电压电平。如果检测到不兼容的电压电平,则警告现场技术人员。如果在所选择的一组网络端子(24a,24b,24c)上,电压电平是适当的,则通过监听所选网络类型的网络通信量,继续所述方法。按照这种方式,多协议本质安全的手持式现场维护工具(22)可利用多过程控制通信协议来操作,同时使过程通信环上的不兼容数据/信号传输的危险最小。
Description
技术领域
本发明涉及过程控制和测量。更具体地,本发明涉及结合过程控制测量***而使用的手持式现场维护工具。
背景技术
手持式现场维护工具是已知的。这样的工具的一个实例是模型275高速可寻址远程变换器(HART)通信装置。HART通信装置是向所有HART兼容的、基于微型处理器的现场设备(或过程设备)提供公共通信链接的手持式工具。HART通信装置与HART兼容的设备进行接口,并且利用用于提供叠加在4-20mA的标准发射机电流环上的高频数字信号的Bell 202移频键控(FSK)技术进行通信。HART通信装置提供了大量的已知诊断和通信功能,有利于过程设备的维护。实际上,HART通信装置可以通过访问历史配置、以及如从遗留数据中所找到的那样,对规定文件的准备进行简化,并更有效率。虽然HART模型275通信装置被看作对于维护过程控制设备非常有价值的东西,但是在一个方面上对其进行了略微地限制。具体地,仅可以结合HART兼容过程设备来使用模型275。另外的工具还可用于其他过程工业协议,但到目前为止,还未提供可以结合具有不同的物理层规范的过程工业协议使用的有效的手持式工具。
在采用根据变化的物理层规范的通信的过程设备的过程控制安装中,将强制维护技术人员携带多协议专用手持式工具,以便与不同协议的每个设备进行交互。虽然这样的情形是不适宜的,但是解决方案是在单个的过程工业协议上进行标准化,或者每次与一组过程工业协议设备进行工作。
可以在具有不同的物理规范的不同的过程通信环上操作的手持 式现场维护工具将有利于过程设备维护,并允许技术人员访问不同的设备,而不必携带多个手持式工具。构建这样的工具的一个主要的技术障碍在于其自身的不同的物理层技术规范。例如,如果在需要不同规范的过程控制环上采用,适合于根据一个物理层规范进行通信的手持式工具实际上可能会引起损坏。解决了上述的技术障碍并针对不同的物理层规范提供使用的手持式工具将会极大地简化过程控制设备的维护。
发明内容
提供了一种利用多协议本质安全的手持式现场维护工具来防止不兼容网络上的不安全传输的方法。优选地,所述方法包括:当在一组上检测或指示了网络连接时,检查在两组网络连接上的电压电平。如果检测到不兼容的电压电平,则警告现场技术人员。如果在所选择的一组网络端子上,电压电平是适当的,则通过监听所选择的网络类型的网络通信量,继续所述方法。按照这种方式,多协议本质安全的手持式现场维护工具可利用多过程控制通信协议来操作,同时使在过程通信环上的不兼容数据/信号传输的危险最小。
附图说明
图1是本发明实施例尤为有用的过程测量和控制***的示意图。
图2是根据本发明实施例的手持式通信和诊断设备的一部分的***方框图。
图3是根据本发明实施例的确保兼容过程通信网络的方法。
具体实施方式
图1示出了其中本发明的实施例非常有用的典型***。***10包括控制器12、I/O和控制子***14、本质安全(IS)阻挡器16、过程通信环18和现场设备20。控制器12通过链接21与I/O和控制子***14相连,所述链接21可以是诸如根据以太网信号控制协议或其他任何适当的协议操作的局域网(LAN)之类的任何适当的链接。I/O和控制子系 统14与本质安全阻挡器16相连,并依次与过程通信环18相连,以便按照限制通过其中的能量的方式来实现环18及I/O和控制子***14之间的数据通信。
在该图示中,过程通信或过程控制环18是FOUNDATIONTM现场总线过程通信环,并与现场设备20相连,所示现场设备20按照多点结构的方式与过程通信环18相连。可选的过程通信(或过程控制)环(未示出)是 过程通信环。 协议利用基于Bell 202通信标准的移频键控(FSK)的原理进行操作。所述信号分别由表示比特1和0的两个频率1200Hz和2200Hz构成。 安装可以按照所谓的点到点结构以及多点结构进行操作。图1示出了与如星型拓扑等其他拓扑相比极大地简化了***接线的多点接线结构。多点 结构支持最多15个设备,而多点现场总线结构支持最多32个设备。
如图1所示,本质安全的手持式现场维护工具22与通信环18相连。当如图所示与过程控制环相连时,工具22可以执行在未决专利申请中所描述的大量通信和诊断功能。工具22可以按照与当前可得到的HART275型通信装置极其相同的方式与HART过程通信环(未示出)相连,并与HART过程通信环进行交互。为了符合HART和FOUNDATIONTM现场总线物理层(PHY)传输行为的各种不同指示,以及符合本质安全要求,针对HART和现场总线连接,在工具22上提供不同的网络连接。
图2是根据本发明实施例的设备22的一部分的方框图。工具22包括三个网络连接端子:两个正端子(24a,24c)和单个的公共端子(24b),形成了一对网络连接端子组。正端子24a和公共端子24b用于将工具22与HART网络相连。另一正端子(24c)和公共端子24b用于将工具22与FOUNDATIONTM现场总线网络相连。使用单独的网络连接,以有利于符合本质安全要求,并同时符合HART和现场总线协议的不同物理层传输行为。符合本质安全要求表示符合1998年10月,由FactoryMutual Research公布的标题为“APPROVAL STANDARD INTRINSICALLYSAFE APPARATUS AND ASSOCIATED APPARATUS FOR USE IN CLASS I,IIAND III,DIVISION 1 HAZARDOUS(CLASSIFIED)LOCATIONS,CLASSNUMBER 3610”中所描述的标准的一个或多个部分。
当利用HART过程控制环来进行操作时,工具22不必作为直流(DC)的宿或源。为了满足该要求,设计了HART物理层电路(还被称为HARTMAU)26,以便按照与当前可用的HART模型275施加这样的电压的方式相同的方式,将电压信号施加在过程控制环18上。
为了满足针对FOUNDATIONTM现场总线的本质安全请求,工具22不必将任何能量注入过程控制环18。为了满足该要求,FOUNDATIONTM现场总线物理层电路(这里还被称为现场总线MAU 28)将作为大约20mA的DC电流(优选地,使用诸如分流调节器)的宿,然后在消息传输期间,以大约+/-8mA来调制该电流。由于两个协议具有两种基本不同(且相冲突的)的通信方式,工具22的电路必须从未作为HART过程控制环中的电流的宿,或从未将能量注入(将电压施加)到FOUNDATIONTM 现场总线网络中。
由于工具22针对不同的过程控制环包括单独的连接和介质接入电路(26,28),用户能够将工具22与故障网络相连(例如,将HART MAU26与FOUNDATIONTM现场总线网络相连,反之亦然)。为了处理这样的用户错误,工具22确保在初始连接时,介质接入单元(MAU的)保持无源,并且不尝试调制网络介质。
工具22包括测量电路,所述测量电路由四个测量信号调节电路组成:一个针对HART MAU(26)而三个针对现场总线MAU 28。此外,HART测量电路30和现场测量电路32都具有可以作为来自网络的小幅度的短持续时间电流的宿的电路。在该实施例中,FOUNDATIONTM现场总线测量信号调节电路32包括三个测量调节电路(统称为现场总线测量电路32),用于衡量在FOUNDATIONTM现场总线网络连接器(24b,24c)上的电压信号,以测量DC电压、通信信号幅度、以及网络或环噪声。HART测量电路30包括测量网络上的DC电压的电路。这四个信号调节电路都馈入控制逻辑块34。优选地,控制逻辑块34包括与模拟到数字转换器36相连的复用器。由微型处理器38通过16比特并行总线40对控制逻辑块34进行访问。
在一个实施例中,当首先开启了工具22时,微型处理器38命令模拟到数字转换器36交替地监视HART和现场总线网络连接端子上的DC电压。在该状态期间,工具22将不会以任何方式(即,作为电流的宿/源或施加电压)来干扰网络(这里还被称为过程控制环)。如果不存 在任何网络连接,在两个环连接上,测量到的电压将在零附近。当MAU端子之一与环相连(即,通过连接24a和24b或24c和24b)时,将在一个MAU上而不在另一个MAU上测量DC电压。HART过程控制环将对大致12和50伏特之间的DC电压进行测量,同时FOUNDATIONTM现场总线环连接将对大致9和32伏特之间的DC电压进行测量。优选地,选择环连接端子的机械设计,从而不能够同时将HART和FOUNDATIONTM现场总线介质接入单元(MAU)26、28与过程环相连。该机械结构确保了如果在一个介质接入单元上测量DC电压,在另一个介质接入单元上将不存在DC电压。
一旦识别了DC电压,则测量极性以确定是否正确地连接了环连接引线。具体地,如果在公共引线24b和引线24a和24c之一之间测量到的DC电压具有负极性,则表示环连接引线被反转。然后,微型处理器38通过以41示出的Com-1向主机处理器(未示出)发送消息,并且主机处理器将显示用于通知用户必须对环连接进行反转的消息。
如上所述,在HART和现场总线过程通信环上所使用的操作DC电压之间存在重叠。因此,不能够使用单独的DC电压来可靠地表示工具22与其相连的环的类型。为了确定环类型,工具22实际上测量过程控制环(最好具有合理的DC电压和正确的引线极性)的DC阻抗。工具22通过在如5微秒等非常短的持续时间内作为1mA的电流的宿,来测量网络DC阻抗。该干扰产生了与过程控制环自身的DC阻抗成比例的沿过程控制环的电压脉冲。在HART和FOUNDATIONTM现场总线过程控制环之间存在阻抗的区分范围。工具22响应其产生的干扰而观察到的信号还包含可能存在于过程控制环上的任意HART或FOUNDATIONTM现场总线通信信号。利用适当的低通滤波器对这些通信信号自身进行过滤,从而仅由工具22观察短持续时间脉冲的效果。
模拟到数字转换器36测量相关干扰的幅度。模拟到数字转换器36测量相关干扰的电压幅度。从该电压测量中可以计算出网络的阻抗。FOUNDATIONTM现场总线网络将具有大约50欧姆的计算阻抗。 网络将具有大于大约125欧姆的计算阻抗。如果检测到的环类型不同于工具 22与其相连的介质接入单元(MAU),则微型处理器38将会通过Com1(41)向主机处理器发送错误消息,以告知操作人员将网络连接改变到正确的介质接入单元。如果检测到的网络或过程控制环类型与工具22的介质接入单元相同,则可以进行正常的通信。
在该实施例中,虽然工具22与过程控制环相连并进行通信,但是优选地,工具22可以进行多个诊断测量。例如,微型处理器38可以周期性地测量DC环电压,以确保其保持正确和恒定。在DC环电压中的任何显著的变化将表示在环上的故障或即将发生的故障状态。
优选地,现场总线测量电路32提供了对操作网络或过程控制环的额外的测量诊断。优选地,通信信号的AC测量具有滤波器,能够对现场总线过程控制环上的消息的幅度进行测量。噪声测量电路还测量AC电压,但具有更低频率的通带,并优化用于测量60和120Hz噪声的幅度。
如以上按照多个实施例所描述的,工具22提供了相对于已知的本质安全的手持式现场维护工具的大量的非常重要的优点。具体地,工具22可以自动地检测与一对环连接端子的环连接。此外,当不适当地进行了环连接时,工具22可以自动地检测,以警告用户反转极性。此外,工具22能够自动地检测与其相连的过程控制环的类型,并响应该检测适当地适配其通信。
工具22还可以对与其相连的环提供大量的诊断。具体地,根据22可以测量DC网络电压、信号幅度(针对FOUNDATIONTM现场总线消息)和低频噪声幅度。此外,针对FOUNDATIONTM现场总线诊断,工具22能够测量现场总线信号强度的幅度,并将其与连接到网络上的特定设备隔离。因此,用户可以确定与FOUNDATIONTM现场总线网络或环相连的设备的正常状态,或者确定问题是否存在于网络的端接处。另外,优选地,工具能够进行在专利申请中所阐明的FOUNDATIONTM现场总线诊断。优选地,工具22还能够提供与存在于FOUNDATIONTM现场总线网络上的端接器的数量相关的指示。
如图2所示,在一个实施例中,优选地,工具22还具有存储器,例如非易失性存储器42和易失性存储器44。设置在工具22内的存储器可以用于保存所有检测到的消息错误的日志以及所有重试询问。这些 错误可以与过程控制环上的特定过程设备或接收节点相关。可以随着时间来收集信息,并且将提供对环以及相连节点的正常状态的有效指示。在一些实施例中,非易失性存储器42是闪速存储器,并且存储了有利于实现更高级别的诊断功能的程序指令。这样的更高级别的诊断包括:监控在FOUNDATIONTM现场总线段中进行操作的环的控制状态;以及/或者仿真控制环中的特定功能块,以便有助于对网络上的其他设备的故障查找。
图3是利用多协议本质安全的现场维护工具来防止过程控制环上的不安全传输的方法的示意图。所述方法在方框100处开始,其中,技术人员首先选择他/她认为工具与其相连的网络。出于说明的目的,作为由技术人员所选择的,示出了网络类型#1。因此,在方框102,工具22验证网络连接在技术人员已经选择的端子组上是可用的。在方框104,工具22检查另一网络连接组,以确定在另一端子组上是否存在电压。如果在另一端子组上存在电压,则警告技术人员可能的错误,并且如方框106所示,该方法返回到方框102。然而,如果在另一网络端子组上未观察到电压或观察到适当的低电压,则控制转到方框108,其中,对所选择的网络端子上的电压进行测量。如果在所选择的网络端子上的测量电压是零,则还将警告提供给技术人员,指示设备可能被不正确地连接,如在方框112所示,之后,该方法重新在方框102处开始。如果在方框110处,在所选择的网络端子上检测到不为零的电压,则设备工具22进入“监听”模式,如方框114所示,其间,所述设备工具监听对于该类型的网络兼容的格式的、所选网络上的消息。如果在方框116,未检测到所选类型的网络通信量,则向技术人员提供关于工具22可能与错误类型的网络相连的警告,如方框118所示。
在方框120处,尽管在方框118期间产生了错误指示,向技术人员提供与工具22进行通信的选项,在这种情况下,控制转到方框122,在方框122,开始在所选类型的网络上的通信。如果在方框120处,技术人员指出通信并非所期望的,则该方法重新在方框102处开始。注意,如果在方框116期间发现了适当的网络通信量,则该方框122还可以通过方框116接入。
优选地,配置工具22,从而在工具22的引线中的任一个从控制环中断开的情况下,重新开始该方法。这确保了即使引线断开并且技术人员错误地将工具与环再次相连,也不会发生不希望的通信/信号传送。因此,每次当工具识别到新的引线连接时,通常将开始或重新开始上述方法。
虽然已经参考优选实施例对本发明进行了描述,本领域的技术人员将会意识到,在不脱离本发明的精神和范围的前提下,可以在形式和细节上进行各种改变。虽然已经针对现场总线和HART过程通信环对本发明的实施例进行了一般性的描述,但是,本发明的实施例可以利用针对其物理层差别可能会在任意相连的设备的传输状态期间,引起问题的任意多个不同的过程控制协议来实施。
Claims (9)
1.一种在过程通信环上可选择地与具有第一和第二环连接端子组的多协议手持式现场维护工具进行通信的方法,所述方法包括:
接收与关于第一组的环类型相对应的所选环类型的用户指示;
测量第二组两端的第一电压;
如果第一电压为零,则测量第一组两端的第二电压;
如果测量的第二电压与用户指示相一致,则监听环通信量;以及
如果检测到网络通信量,则在过程控制环上进行通信。
2.根据权利要求1所述的方法,其特征在于所选的环类型是高速可寻址远程变换器。
3.根据权利要求1所述的方法,其特征在于所选的环类型是基金会现场总线。
4.根据权利要求1所述的方法,其特征在于当所述多协议手持式现场维护工具与过程通信环相连时,开始所述方法。
5.一种在过程通信环上可选择地与具有第一和第二环连接端子组的多协议手持式现场维护工具进行通信的方法,所述方法包括:
接收与关于第一组的环类型相对应的所选环类型的用户指示;
测量第二组两端的第一电压;
如果第一电压为零,则测量第一组两端的第二电压;
如果测量的第二电压与用户指示相一致,则监听环通信量;以及
如果未检测到所选环类型的任何网络通信量,则向用户提供错误指示。
6.根据权利要求5所述的方法,其特征在于还包括:
尽管没有通信量,也允许用户开始网络通信。
7.根据权利要求5所述的方法,其特征在于所选的环类型是高速可寻址远程变换器。
8.根据权利要求5所述的方法,其特征在于所选的环类型是基金会现场总线。
9.根据权利要求5所述的方法,其特征在于当所述多协议手持式现场维护工具与过程通信环相连时,开始所述方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/440,434 | 2003-05-16 | ||
US10/440,434 US7027952B2 (en) | 2002-03-12 | 2003-05-16 | Data transmission method for a multi-protocol handheld field maintenance tool |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1592224A CN1592224A (zh) | 2005-03-09 |
CN1592224B true CN1592224B (zh) | 2010-12-08 |
Family
ID=33029833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2004100447011A Expired - Lifetime CN1592224B (zh) | 2003-05-16 | 2004-05-17 | 多协议手持式现场维护工具的数据传输方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7027952B2 (zh) |
EP (1) | EP1477952B1 (zh) |
CN (1) | CN1592224B (zh) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6959356B2 (en) * | 2001-07-30 | 2005-10-25 | Fisher-Rosemount Systems, Inc. | Multi-protocol field device and communication method |
US7526802B2 (en) * | 2003-05-16 | 2009-04-28 | Fisher-Rosemount Systems, Inc. | Memory authentication for intrinsically safe field maintenance tools |
GB0323178D0 (en) * | 2003-10-03 | 2003-11-05 | Rogoll Gunther | Physical layer diagnostics |
US9244111B2 (en) * | 2003-10-17 | 2016-01-26 | Ronald P. Clarridge | Amperage/voltage loop calibrator with loop diagnostics |
US20060140209A1 (en) * | 2004-12-23 | 2006-06-29 | Smar Research Corporation | Field device, system and process for multi-protocol field device emulator |
US8112565B2 (en) * | 2005-06-08 | 2012-02-07 | Fisher-Rosemount Systems, Inc. | Multi-protocol field device interface with automatic bus detection |
DE102005041455A1 (de) * | 2005-08-31 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043482A1 (de) * | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043481A1 (de) * | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043485A1 (de) | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
US8761196B2 (en) * | 2006-09-29 | 2014-06-24 | Fisher-Rosemount Systems, Inc. | Flexible input/output devices for use in process control systems |
US8364431B2 (en) * | 2006-10-13 | 2013-01-29 | Fisher-Rosemount Systems, Inc. | Field device calibration |
DE202006018640U1 (de) * | 2006-12-09 | 2008-04-17 | Weidmüller Interface GmbH & Co. KG | Bussystem |
US8725081B2 (en) * | 2007-04-13 | 2014-05-13 | Fisher-Rosemount Systems, Inc. | Wireless process communication adapter for handheld field maintenance tool |
CN101681165B (zh) * | 2007-06-13 | 2013-11-06 | 费希尔-罗斯蒙德***公司 | 手持现场维护工具的改进功能 |
DE102007050708B4 (de) * | 2007-10-22 | 2009-08-06 | Phoenix Contact Gmbh & Co. Kg | System zum Betreiben wenigstens eines nicht-sicherheitskritischen und wenigstens eines sicherheitskritischen Prozesses |
US8369880B2 (en) * | 2008-02-27 | 2013-02-05 | Fisher-Rosemount Systems, Inc. | Join key provisioning of wireless devices |
US8390150B2 (en) * | 2008-07-15 | 2013-03-05 | Fisher-Rosemount Systems, Inc. | Field device interface with network protection mechanism |
EP2430815B1 (en) | 2009-05-15 | 2018-07-11 | Fisher-Rosemount Systems, Inc. | Improved maintenance of wireless field devices |
US9709973B2 (en) * | 2010-07-28 | 2017-07-18 | Fisher-Rosemount Systems, Inc. | Handheld field maintenance tool with improved diagnostics |
FI124530B (fi) * | 2012-02-08 | 2014-09-30 | Beamex Oy Ab | Prosessikalibraattori |
JP5886714B2 (ja) * | 2012-08-22 | 2016-03-16 | 横河電機株式会社 | 携帯型機器保守支援装置 |
WO2016122673A1 (en) * | 2015-01-30 | 2016-08-04 | Hewlett Packard Enterprise Development Lp | Detection of connection type |
CN107636545A (zh) * | 2015-06-10 | 2018-01-26 | 三菱电机大楼技术服务株式会社 | 设备维护管理***、设备维护装置以及程序 |
US10382312B2 (en) * | 2016-03-02 | 2019-08-13 | Fisher-Rosemount Systems, Inc. | Detecting and locating process control communication line faults from a handheld maintenance tool |
US10599134B2 (en) * | 2016-07-22 | 2020-03-24 | Fisher-Rosemount Systems, Inc. | Portable field maintenance tool configured for multiple process control communication protocols |
DE102018205202A1 (de) * | 2018-04-06 | 2019-10-10 | Robert Bosch Gmbh | Vorrichtung zum Auskoppeln eines Signals und Verfahren zum Auskoppeln eines Signals |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6091968A (en) * | 1997-06-12 | 2000-07-18 | Nortel Networks Corporation | Call switching system based on type of call |
US20020167904A1 (en) * | 2001-05-14 | 2002-11-14 | Borgeson Dale W. | Hand held diagnostic and communication device with automatic bus detection |
Family Cites Families (89)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4337516A (en) | 1980-06-26 | 1982-06-29 | United Technologies Corporation | Sensor fault detection by activity monitoring |
JPH0619666B2 (ja) | 1983-06-30 | 1994-03-16 | 富士通株式会社 | 故障診断処理方式 |
US4707796A (en) | 1983-10-19 | 1987-11-17 | Calabro Salvatore R | Reliability and maintainability indicator |
US4630265A (en) | 1984-09-26 | 1986-12-16 | General Electric Company | Method and apparatus for selecting for use between data buses in a redundant bus communication system |
US5005142A (en) | 1987-01-30 | 1991-04-02 | Westinghouse Electric Corp. | Smart sensor system for diagnostic monitoring |
US4988990A (en) | 1989-05-09 | 1991-01-29 | Rosemount Inc. | Dual master implied token communication system |
US4954923A (en) | 1988-08-19 | 1990-09-04 | Cooper Industries, Inc. | Intrinsic safety module interface |
US4964125A (en) | 1988-08-19 | 1990-10-16 | Hughes Aircraft Company | Method and apparatus for diagnosing faults |
US5197328A (en) | 1988-08-25 | 1993-03-30 | Fisher Controls International, Inc. | Diagnostic apparatus and method for fluid control valves |
EP0369489A3 (en) | 1988-11-18 | 1991-11-27 | Omron Corporation | Sensor controller system |
JP2714091B2 (ja) | 1989-01-09 | 1998-02-16 | 株式会社日立製作所 | フィールド計器 |
JPH0650557B2 (ja) | 1989-07-04 | 1994-06-29 | 株式会社日立製作所 | フィールド計器の通信方式 |
JP2753592B2 (ja) | 1990-01-18 | 1998-05-20 | 横河電機株式会社 | 2線式計器 |
US5113303A (en) | 1990-03-29 | 1992-05-12 | Cooper Industries, Inc. | Grounding detection circuit |
US5150289A (en) | 1990-07-30 | 1992-09-22 | The Foxboro Company | Method and apparatus for process control |
GB9208704D0 (en) | 1992-04-22 | 1992-06-10 | Foxboro Ltd | Improvements in and relating to sensor units |
CA2097558C (en) | 1992-06-16 | 2001-08-21 | William B. Kilgore | Directly connected display of process control system in an open systems windows environment |
US5426774A (en) | 1993-04-06 | 1995-06-20 | Honeywell Inc. | Method for maintaining a sequence of events function during failover in a redundant multiple layer system |
US5549137A (en) | 1993-08-25 | 1996-08-27 | Rosemount Inc. | Valve positioner with pressure feedback, dynamic correction and diagnostics |
US5481200A (en) | 1993-09-15 | 1996-01-02 | Rosemont Inc. | Field transmitter built-in test equipment |
US5442639A (en) | 1993-10-12 | 1995-08-15 | Ship Star Associates, Inc. | Method and apparatus for monitoring a communications network |
US5434774A (en) | 1994-03-02 | 1995-07-18 | Fisher Controls International, Inc. | Interface apparatus for two-wire communication in process control loops |
US5623605A (en) | 1994-08-29 | 1997-04-22 | Lucent Technologies Inc. | Methods and systems for interprocess communication and inter-network data transfer |
BR9509503A (pt) | 1994-10-24 | 1997-12-30 | Fisher Rosemount Systems Inc | Sistema de controle distribuido dispositivo de campo baseado em rede módulo de campo ponte destinada a transmitir informações a partir de uma rede de distribuição para uma rede de controle ponte/conversor |
US5650777A (en) | 1995-06-07 | 1997-07-22 | Rosemount Inc. | Conversion circuit for process control system |
US5742845A (en) | 1995-06-22 | 1998-04-21 | Datascape, Inc. | System for extending present open network communication protocols to communicate with non-standard I/O devices directly coupled to an open network |
US6076124A (en) | 1995-10-10 | 2000-06-13 | The Foxboro Company | Distributed control system including a compact easily-extensible and serviceable field controller |
US6304934B1 (en) | 1995-10-13 | 2001-10-16 | Smar Research Corporation | Computer to fieldbus control system interface |
CA2238371A1 (en) | 1995-12-06 | 1997-06-12 | Honeywell Inc. | A method of predictive maintenance of a process control system haivng fluid movement |
US5940290A (en) | 1995-12-06 | 1999-08-17 | Honeywell Inc. | Method of predictive maintenance of a process control system having fluid movement |
JP3181601B2 (ja) | 1996-01-17 | 2001-07-03 | シーメンス アクチエンゲゼルシヤフト | 自動化装置 |
US6094600A (en) | 1996-02-06 | 2000-07-25 | Fisher-Rosemount Systems, Inc. | System and method for managing a transaction database of records of changes to field device configurations |
US5764891A (en) | 1996-02-15 | 1998-06-09 | Rosemount Inc. | Process I/O to fieldbus interface circuit |
US5665899A (en) | 1996-02-23 | 1997-09-09 | Rosemount Inc. | Pressure sensor diagnostics in a process transmitter |
US6017143A (en) | 1996-03-28 | 2000-01-25 | Rosemount Inc. | Device in a process system for detecting events |
US6654697B1 (en) | 1996-03-28 | 2003-11-25 | Rosemount Inc. | Flow measurement with diagnostics |
US6539267B1 (en) | 1996-03-28 | 2003-03-25 | Rosemount Inc. | Device in a process system for determining statistical parameter |
US5909368A (en) | 1996-04-12 | 1999-06-01 | Fisher-Rosemount Systems, Inc. | Process control system using a process control strategy distributed among multiple control elements |
US5995916A (en) | 1996-04-12 | 1999-11-30 | Fisher-Rosemount Systems, Inc. | Process control system for monitoring and displaying diagnostic information of multiple distributed devices |
DE19634997C2 (de) | 1996-08-30 | 1999-08-05 | Voith Sulzer Papiermasch Gmbh | Regeleinrichtung mit einer Sensoren-Mehrzahl |
US6023399A (en) | 1996-09-24 | 2000-02-08 | Hitachi, Ltd. | Decentralized control system and shutdown control apparatus |
US6192281B1 (en) | 1996-10-04 | 2001-02-20 | Fisher Controls International, Inc. | Network accessible interface for a process control network |
US6047222A (en) | 1996-10-04 | 2000-04-04 | Fisher Controls International, Inc. | Process control network with redundant field devices and buses |
JP2001501760A (ja) * | 1996-10-04 | 2001-02-06 | フィッシャー コントロールズ インターナショナル,インコーポレイテッド | プロセス制御ネットワークで使用するための保守インタフェースデバイス |
US5970430A (en) | 1996-10-04 | 1999-10-19 | Fisher Controls International, Inc. | Local device and process diagnostics in a process control network having distributed control functions |
US6449574B1 (en) | 1996-11-07 | 2002-09-10 | Micro Motion, Inc. | Resistance based process control device diagnostics |
US5956663A (en) | 1996-11-07 | 1999-09-21 | Rosemount, Inc. | Signal processing technique which separates signal components in a sensor for sensor diagnostics |
US6434504B1 (en) | 1996-11-07 | 2002-08-13 | Rosemount Inc. | Resistance based process control device diagnostics |
US6519546B1 (en) | 1996-11-07 | 2003-02-11 | Rosemount Inc. | Auto correcting temperature transmitter with resistance based sensor |
US6601005B1 (en) | 1996-11-07 | 2003-07-29 | Rosemount Inc. | Process device diagnostics using process variable sensor signal |
US5828567A (en) | 1996-11-07 | 1998-10-27 | Rosemount Inc. | Diagnostics for resistance based transmitter |
US5752249A (en) | 1996-11-14 | 1998-05-12 | Macon, Jr.; Charles E. | System and method for instantiating a sharable, presistent parameterized collection class and real time process control system embodying the same |
US5838187A (en) | 1997-02-10 | 1998-11-17 | Lucent Technologies Inc. | Integrated circuit thermal shutdown system utilizing a thermal sensor |
US5980078A (en) | 1997-02-14 | 1999-11-09 | Fisher-Rosemount Systems, Inc. | Process control system including automatic sensing and automatic configuration of devices |
WO1998039718A1 (en) | 1997-03-04 | 1998-09-11 | Emerson Electric Co. | Distributed diagnostic system |
JPH10261185A (ja) | 1997-03-19 | 1998-09-29 | Hitachi Ltd | 入出力混在形信号変換器 |
US5923557A (en) | 1997-08-01 | 1999-07-13 | Hewlett-Packard Company | Method and apparatus for providing a standard interface to process control devices that are adapted to differing field-bus protocols |
JP4611517B2 (ja) | 1997-10-13 | 2011-01-12 | ローズマウント インコーポレイテッド | 流体のプロセス装置 |
DE19900153A1 (de) * | 1998-01-05 | 1999-07-15 | Int Rectifier Corp | Integrierte Gate-Treiberschaltung |
US6270920B1 (en) | 1998-03-19 | 2001-08-07 | Sanyo Electric Co., Ltd. | Battery module and container for battery module |
US6111738A (en) | 1998-05-22 | 2000-08-29 | Diagnostic Instruments Ltd. | Intrinsically safe circuits |
FI114745B (fi) | 1998-06-01 | 2004-12-15 | Metso Automation Oy | Kenttälaitteiden hallintajärjestelmä |
FI108678B (fi) | 1998-06-17 | 2002-02-28 | Neles Controls Oy | Kenttälaitteiden hallintajärjestelmä |
US6615149B1 (en) | 1998-12-10 | 2003-09-02 | Rosemount Inc. | Spectral diagnostics in a magnetic flow meter |
US6611775B1 (en) | 1998-12-10 | 2003-08-26 | Rosemount Inc. | Electrode leakage diagnostics in a magnetic flow meter |
IT1304079B1 (it) | 1998-12-31 | 2001-03-07 | Abb Research Ltd | Dispositivo di collaudo per sistemi di controllo industriali |
US6298454B1 (en) | 1999-02-22 | 2001-10-02 | Fisher-Rosemount Systems, Inc. | Diagnostics in a process control system |
US7206646B2 (en) | 1999-02-22 | 2007-04-17 | Fisher-Rosemount Systems, Inc. | Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control |
DE10011233B4 (de) | 1999-03-12 | 2007-07-12 | Sanyo Electric Co., Ltd., Moriguchi | Batterieeinheit |
US6564268B1 (en) | 1999-03-17 | 2003-05-13 | Rosemount Inc. | Fieldbus message queuing method and apparatus |
US6356191B1 (en) | 1999-06-17 | 2002-03-12 | Rosemount Inc. | Error compensation for a process fluid temperature transmitter |
JP4824234B2 (ja) | 1999-07-01 | 2011-11-30 | ローズマウント インコーポレイテッド | 2線式温度送信機およびプロセス温度測定方法 |
DE19930660A1 (de) | 1999-07-02 | 2001-01-11 | Siemens Ag | Verfahren zur Überwachung oder zur Installation neuer Programmcodes in einer industriellen Anlage |
US6505517B1 (en) | 1999-07-23 | 2003-01-14 | Rosemount Inc. | High accuracy signal processing for magnetic flowmeter |
DE29917651U1 (de) | 1999-10-07 | 2000-11-09 | Siemens AG, 80333 München | Meßumformer sowie Prozeßleitsystem |
US6487462B1 (en) | 2000-01-22 | 2002-11-26 | G. George Reeves | Selective process data logger with instant replay |
US6556447B2 (en) | 2000-03-01 | 2003-04-29 | Endress + Hauser Flowtec Ag | Electronic apparatus with an enclosure |
US6594621B1 (en) | 2000-03-06 | 2003-07-15 | James H. Meeker | System and method for determining condition of plant |
US6697681B1 (en) | 2000-03-22 | 2004-02-24 | Trellis Software & Controls, Inc. | Shared operating unit for a network of programmable equipment |
US6775271B1 (en) * | 2000-05-17 | 2004-08-10 | Intel Corporation | Switching system and method for communicating information at a customer premises |
DE10032774A1 (de) | 2000-07-06 | 2002-01-17 | Endress Hauser Gmbh Co | Feldgerät |
US20040236450A1 (en) | 2000-09-25 | 2004-11-25 | Motorwiz, Inc. | Model-based machine diagnostics and prognostics using theory of noise and communications |
EP1202145B1 (en) | 2000-10-27 | 2005-02-09 | Invensys Systems, Inc. | Field device with a transmitter and/ or receiver for wireless data communication |
US6795798B2 (en) | 2001-03-01 | 2004-09-21 | Fisher-Rosemount Systems, Inc. | Remote analysis of process control plant data |
US6598828B2 (en) | 2001-03-05 | 2003-07-29 | The United States Of America As Represented By The Secretary Of The Navy | Integral data acquisition capacity |
US20030023408A1 (en) | 2001-03-06 | 2003-01-30 | Robin Wight | System for collecting and storing information |
US7149597B2 (en) | 2001-05-29 | 2006-12-12 | John Billings | Process control system and method |
US6959356B2 (en) | 2001-07-30 | 2005-10-25 | Fisher-Rosemount Systems, Inc. | Multi-protocol field device and communication method |
US7035877B2 (en) | 2001-12-28 | 2006-04-25 | Kimberly-Clark Worldwide, Inc. | Quality management and intelligent manufacturing with labels and smart tags in event-based product manufacturing |
-
2003
- 2003-05-16 US US10/440,434 patent/US7027952B2/en not_active Expired - Lifetime
-
2004
- 2004-05-14 EP EP04252801A patent/EP1477952B1/en not_active Expired - Lifetime
- 2004-05-17 CN CN2004100447011A patent/CN1592224B/zh not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6091968A (en) * | 1997-06-12 | 2000-07-18 | Nortel Networks Corporation | Call switching system based on type of call |
US20020167904A1 (en) * | 2001-05-14 | 2002-11-14 | Borgeson Dale W. | Hand held diagnostic and communication device with automatic bus detection |
Also Published As
Publication number | Publication date |
---|---|
US20040073402A1 (en) | 2004-04-15 |
EP1477952A3 (en) | 2007-10-17 |
EP1477952A2 (en) | 2004-11-17 |
CN1592224A (zh) | 2005-03-09 |
US7027952B2 (en) | 2006-04-11 |
EP1477952B1 (en) | 2012-09-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1592224B (zh) | 多协议手持式现场维护工具的数据传输方法 | |
CN100373859C (zh) | 具有自动总线检测的手持诊断和通信设备 | |
US7117122B2 (en) | Field maintenance tool | |
CN100472575C (zh) | 具有环超控的过程设备 | |
JP5886714B2 (ja) | 携帯型機器保守支援装置 | |
US10599134B2 (en) | Portable field maintenance tool configured for multiple process control communication protocols | |
US20040218326A1 (en) | Intrinsically safe field maintenance tool with power islands | |
US10764083B2 (en) | Portable field maintenance tool with resistor network for intrinsically safe operation | |
US10505585B2 (en) | Portable field maintenance tool with a bus for powering and communicating with a field device | |
WO1997005494A1 (en) | Lan tester | |
JP2007115237A (ja) | 情報取得アダプタと情報取得アダプタ管理システム | |
CN107567697A (zh) | 总线网端接器 | |
EP1489476B1 (en) | Intrinsically safe field maintenance tool | |
KR20050001128A (ko) | 원격 관리 장치 및 그 방법 | |
KR20050029524A (ko) | 전원변환장치의 원격 제어시스템 및 그 제어방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20101208 |
|
CX01 | Expiry of patent term |