现场总线诊断与维护SECCO叶迎民

1、现场总线诊断与维护现场总线诊断与维护ff diagnosis & maintenance叶迎民叶迎民上海赛科主任工程师上海赛科主任工程师yeyingminleader engineershanghai seccoplace companylogo here前言前言preface我们如何让现场总线诊断和维护变得更加容易？我们如何让现场总线诊断和维护变得更加容易？how can we make ff diagnosis and maintenance easier？n这个演示目的是从用户的体验和实践出发，探讨现场总线的诊断和维护应用的范围，以及如何有效地开展现场总线诊断和维护工作。this

2、 presentation is from the point of view of the user experience and practice, to explore the application scope of fieldbus diagnosis and maintenance, and how to effectively carry out the fieldbus diagnosis and maintenancen现场总线诊断和维护涉及的因素广，关联性强，演示的出发点是与大家共同探索如何将问题简单化，以适应更广泛的应用。fieldbus diagnosis and ma

3、intenance factors involved in a wide range, strong relevance, the speech is the starting point to jointly explore in the face of various problems with you, how to simplify problems, in order to adapt to the more extensive application.内容内容contentff诊断和维护的范畴诊断和维护的范畴scope of ff diagnosis and maintenance

4、ff诊断和维护的方法诊断和维护的方法method of ff diagnosis and maintenance典型方法和案例分享the typical methods and case sharing诊断数据记录与分析recording and analyzing data diagnosis报警管理及状态监测alarm management and monitoringff诊断和维护的价值诊断和维护的价值the value of ff diagnosis and maintenanceff诊断和维护的体会诊断和维护的体会experience of ff diagnosis and main

5、tenancesecco简介及其简介及其ff应用应用introduction and ff application in seccocenter control roomoutstationff segment：2475ff devices：11637outstation：17unit: （ktpa）实践证明，ff大规模应用的可靠性是可以保证的，并且可以为用户带来价值。practice has proved, the reliability of ff large-scale application can be guaranteed, and can bring value to the u

6、ser.ff故障类型故障类型/诊断范围诊断范围ff fault type / diagnosis scope故障源故障源fault source诊断范围诊断范围diagnosis scope故障表现故障表现fault performance诊断途径诊断途径diagnostic methods物理层缺陷（包括潜在的缺陷）the physical layer defects (including latent defect)现场总线网段（主干网、分支电缆、接线箱、终端保护器、电源）fieldbus segment (backbone, branch cables, junction box, te

7、rminal protector, power)设备丢失/通信报警the device is lost / communication alarm网段物理参数测量/物理层指标监测segment physical parameter measurement / physical layer monitoring index(adm)设备缺陷(元件、传感器、阀门)defective equipment (electronic components, sensors, valve)现场总线设备（变送器、阀门定位器、转换器、指示仪）fieldbus devices (transmitter, valv

8、e positioner, converter, indicator )测量/控制异常measurement / control abnormal设备报警管理及诊断软件equipment alarm management and diagnosis software(ams and snapon)软件组态缺陷（包括兼容性）software configuration defects( including compatibility)现场总线软体（数据包、功能块）fieldbus software ( data packet, function block )状态异常/失控he abnormal

9、 state / out of controlh1主机通信监测；bus通信数据监测；fds检查h1 host/bus communication monitoring; monitoring; functional design specification examinationff/hart故障表现及区别故障表现及区别differences between ff and hart alarm / fault rate ( based on unit )alarm type contrast ( based on equipment )1. 现场总线具有相当程度的“容错性”，故障具有“潜伏性”

10、；fieldbus has a considerable degree of tolerance , potential ;2. 现场总线设备共用一个网段，故障源和故障发生点有时分离，具有“交叉性”；fieldbus devices share a segment, the fault source and fault point sometimes separate with the cross ;3. 现场总线通信可能受到干扰，间歇性的干扰使得故障表现出一种“随机性”；fieldbus communication may be subject to interference, interm

11、ittent interference makes the fault to show a random ;1. ff仪表诊断报警的类型数量多于hart，报警检测是基于宏周期的，hart一般是轮询的。ff instrument diagnostic alarm type more than the number of hart, and the ff alarm detection is based on the macro cycle, hart alarm detection is generally polling.2. 通信报警不同。difference communication s

12、 and alarms.ff故障原因分类故障原因分类 classification of ff failure causesn除了仪表的本体以外，常见的是接线、进水问题。except the instrument body, common wiring, water problems.n对故障原因的分类统计有利于预防性维护措施的制定。classification and statistics on the fault reason is conducive to the development of preventive maintenance measuresn根据故障多发的情况，采取相应的

13、改进措施。according to the multiple fault situations, take corresponding measures.note:（比例仅供参考proportion is for reference only）ff故障影响及操作处理故障影响及操作处理 deal with ff failures现场总线网段诊断及故障源排除现场总线网段诊断及故障源排除ff segment failure diagnosis and exclusion在接线柜采集数据。一般情况下，数据集中采集可以安排在停车机会之前进行。not for the deployment of onlin

14、e diagnosis system of the factory, in the cabinets of data collection. in general, data collection can be arranged in the parking opportunity before.对数据进行整理，选择需要排查的对象。连接待检查网段，在现场接线箱处，采用排除法（依次断开分支，观察指标是否恢复），进行故障源的定位。to organize the data, select the object needs investigation. connection to network, i

15、n the junction box, exclusive method ( disconnect the branch, observed whether recovery), location of fault source.现场总线诊断典型案例现场总线诊断典型案例typical cases of fieldbus diagnosiswater penetrationelectrical interference现场总线诊断数据关联分析现场总线诊断数据关联分析 fieldbus diagnostics data correlation analysis诊断数据分布特征诊断数据分布特征- -

16、复合型复合型 physical layer parameters exceed distribution characteristics composite一般情况下，幅值和不平衡超标比较突出。其中，应主要关注不平衡因素。不平衡降低了网段的抗干扰能力，应特别关注。in general, amplitude level and unbalance exceed the standard more prominent. among them, should be the main concern imbalance factor. unbalanced lower segment of the a

17、nti-interference ability, we should pay special attention to.“设备类型设备类型+物理层指标物理层指标”合并分析合并分析“ type of equipment + physical layer index” combined analysis应注意到设备本体作为网段的一个组成部分，在正常的情况下，对网段的性能也会造成的叠加的影响。attention should be paid to the body of the device as part of a segment, under normal circumstances, the

18、 impact on performance of the segment will also cause the stack.现场总线诊断数据分布分析现场总线诊断数据分布分析fieldbus diagnostics data distribute analysis信号畸变分布数据分析distributed data analysis of signal distortion信号幅值分布数据分析distributed data analysis of signal level amplitude 不平衡分布数据分析data analysis of unbalance distribution噪

19、音分布数据分析data analysis of noise distribution现场总线网段诊断数据记录表现场总线网段诊断数据记录表fieldbus segment diagnostic data record记录表应有辅助的信息。包括dcs端口、接线箱、接线柜端子、设备厂家型号。由于网段配置是动态的，可编制程序从intools和和ams的数据库的数据库中自动扫描生成。records should be auxiliary information. includes a dcs port, junction boxes, cabinets, equipment manufacturers

20、type terminal. because the network configuration is dynamic, can be programmed from intools and ams database automatic scanning.企业根据自己的实践，制定合理的诊断参考指标。enterprises according to their own practice, formulate reasonable diagnostic reference index.注意在正常工作状态下的“背景”噪声/电平。note that in the normal working stat

21、e under the background “ noise / level.尽可能消除不平衡，提高网段抗干扰和免疫能力。to eliminate the unbalanced as far as possible, to improve the anti-interference ability and immune network.dcs ff诊断参数诊断参数(deltav) dcs ff diagnostic parameters (deltav)现场总线数据链路现场总线数据链路/报文诊断报文诊断ni-fbustm fieldbus data link/message diagnosis

22、bus-monitor案例-雷达指示仪电缆bus-monitor case - radar indicator cablebus-monitor案例-host h1卡故障bus-monitor case -host h1 card failure现场总线现场维护现场总线现场维护检查检查的内容的内容 fieldbus site maintenance examination itemsams ff报警管理报警管理-“报警周报报警周报” ams ff alarm management- weekly report开发报警统计报表。对仪表报警进行监测和统计；从报警区域、报警类型、事件种类、设备型号、

23、报警频率等不同维度观察仪表报警的分布。发现和解决主要问题。the development of alarming statistics. the instrument alarm monitoring and statistics; from the alarm, alarm types, regional event categories, types of equipment, alarm frequency different dimensions of observation instrument alarm distribution. to discover and solve pr

24、oblems.ams ff设备管理设备管理-“网段树网段树” ams ff device management-segment treeams数据库按网段的拓扑构建树形结构，并与dcs的port口同步更新。由于ff通信故障 具有“关联性和交叉性”，采用“网段树”进行报警管理有利于故障分析、定位。 build ams database tree structure according to the network topology, and synchronize with dcs port. since the ff communication fault relevant and cross

25、, the segment tree alarm management is beneficial to the fault location analysis.ams ff通信故障管理通信故障管理-“报警排行报警排行” ams ff fault management alarm ranking以dcs port口（trunk/jb）为集合单位，进行ff通信报警的测量和排序。优先检查报警排行在前的网段存在的问题。dcs port (trunk/jb ) as a collection of units, measuring and sorting ff communication alarm.

26、 priority check the problem in before the segment alarm ranking.ff仪表仪表/阀门诊断信息统计阀门诊断信息统计ff instrument / valve diagnostic statisticsff设备诊断应用设备诊断应用-阀门诊断阀门诊断ff equipment diagnosis application valve diagnosis example：41fv12100a: 防喘振阀门振荡，有失控现象，存在安全隐患。气动附件存在故障所致，放大器内漏。 anti-surge valve oscillation, a runaw

27、ay phenomenon, the existence of security risks. pneumatic accessories fault caused by leakage of amplifier.ff诊断减少检修成本诊断减少检修成本&时间时间 ff diagnosis reduces overhaul cost & time通过开展阀门诊断和维护，大检修前后，阀门(定位器)报警数量减少了65%。阀门偏差减少了66%。提高了阀门运行可靠性。through the diagnosis carried out valve and maintenance, befor

28、e and after overhaul, valve (positioner) alarm number was reduced by 65%, valve deviation is reduced by 66%. to improve the availability.在大修开展诊断和维护，阀门检修量减少49%。降低近一半的检修成本和检修时间。development of diagnosis and maintenance in turnaround, valve repair to reduce the amount of 49%, reduce maintenance cost and

29、 maintenance time of half of the overall. 通过诊断对阀门检修进行验收，查出158台检修不合格阀门，占13%。有效地防止了风险。 through the diagnosis for the acceptance of the valve repair, found 158 unqualified valve, accounted 13%. to effectively prevent the risk.现场总线维护管理的方法现场总线维护管理的方法method of fieldbus maintenance制定和执行ff设计选型、施工接线、维护组态的工程规

30、范；establish and implementation of ff engineering specification design, selection, construction, wiring, maintain configuration;定期进行网段/设备健康体检，结合“基线”数据，发现缺陷，消除故障源；regular segment&device health examination, combined with the baseline data, found defects, eliminate the fault source;开展ff设备的状态监测，发现并解决

31、仪表本身的问题；to carry out condition monitoring equipment ff, find and solve the problems of instrument itself;现场总线维护管理的体会现场总线维护管理的体会experience of fieldbus maintenancen正确面对ff故障。认识ff的容错性。消除对ff故障的恐惧心理和畏难情绪。采用pid cif控制策略。执行统一的fb fds规范，取消故障后shutdown的设置，减少ff故障对工艺控制的影响，避免ff故障“衍生”的风险。a correct understanding of ff fault. fault tolerance to ff. the elimination of ff fault of fear and fear. using the pid cif control strategy. the implementation of