爱默生控制器

1、Emerson controllerFeatures Secure, reliable and mission-critical control capability providing “bumpless” automatic failoverbetween redundant controllers. Diverse control capability using graphical control sheets combining modulating,sequential, sequence, and data acquisition. One-step data acquisiti

2、on functionality through the definition of the I/O data base. Small footprint with low power requirements and fanless operation. Native interfaces to Ovation and WDPF I/O,both local and remote. Integrated virtual I/O capability for third-party OEM systems over Ethernet protocols. Non-volatile storag

3、e of application software,point database, configuration information, and operating tuning constants. Managed by a commercial, real-time operating system which supports multi-tasking and preemptive task scheduling to POSIX1003.1b open system standards. Integrated sequence of events capability with 1

4、millisecond resolution.Ovation ControllerEmerson Process Managements Ovation expert control system incorporates a powerful controller for secure, mission-critical operations such as those of power and water plants. The Ovation Controller executes simple or complex modulating and sequential control s

5、trategies, performs data acquisition functions, and interfaces to the Ovation Network and various I/O sub-systems. It has the capability to originate up to 16,000 points.Process ApplicationsThe Ovation Controller is designed to meet the demanding requirements of a wide range of process applications.

6、 It performs numerous functions, including: Continuous (PID) control Boolean logic Advanced Control Special logic and timing functions Data acquisition Sequence of events processing Cold junction compensation Process point sensor/limit checking Process point alarm processing Process point conversion

7、 to engineering units Process point database storage Local and remote I/O interface Process point tagoutStandard Controller FunctionsControl ExecutionThe Ovation Controller, with its Intel processor,is capable of simultaneously executing as many as five process control tasks at loop speeds ranging f

8、rom 10 milliseconds to 30 seconds.Each control task is comprised of I/O processpoint input scan, the control scheme execution followed by an output scan. Two of the control tasks loop speeds are predefined at one-second and 100 milliseconds. The other three control tasks can have user-selectable loo

9、p speeds.Individual control sheets are user-assigned to one of these tasks, allowing control execution loop times to be appropriate to the functions being controlled.Control SchemeThe control scheme executed by the Ovation Controller is defined by building control sheets with an extensive set of alg

10、orithms. A control sheet is the control that is executed, the documentation of the control, and the online monitoring diagram that is used to run and diagnose the process. The controller can provide for the execution of up to 6,000 control sheets.Sequence of EventsIntegral sequence of events (SOE) p

11、rocessing capability is provided via the Ovation and Q-Line I/O subsystems and standard controller software. With a resolution of one millisecond, the SOE subsystem records the sequence in which a user-defined set of digital input conditions occurred. In addition to the higher resolution time tag, t

12、he SOE points are usable in control schemes like any other I/O point including limit checking and alarming.Alarm ProcessingBased on each process point database definition, the Ovation Controller performs all of the limit and alarm processing functions typically associated with a data acquisition sys

13、tem (DAS). During the input scan associated with the control execution or the default one-second DAS scan. The status (including alarm status) of all points in the controller are updated and broadcast onto the Ovation Network.Extensive information is included within the status information broadcast.

14、 For example, the status may indicate a point has either: Exceeded the range of the sensor Exceeded the user-defined limits Changed state Passed an incremental limitIf desired, the alarm reporting can be delayed on a per-point basis by a user-specified time period.When coupled with a workstation, th

15、e Ovation Controller has the capability to report six independent alarm thresholds, defined as: Four high limits User-defined high limit Highest plus incremental limits Four low limits User-defined low limit Lowest plus incremental limitsThe workstation has the capability to sort alarms based on a u

16、ser-selected alarm significance level. Alarms specified will be denoted as either alert or information when displayed on the alarm screen.Operator Interface ProcessingThe Ovation Controller performs the entire limit and alarm processing based on the database configuration for each point. However, th

17、e controllers operator interface capability allows these functions to be suspended as necessary by the process state or operator action which is also logged. These include scan remove, alarm cutout, enter valve, alarm and limit checking suspension and similar functions, which are also under the Ovat

18、ion security functionality.Controller TypesThe Ovation Controller can provide additionalcapabilities with add-on software licenses for SIM Controller, Advanced Controller, or both.Another licensed controller type is an Ovation Virtual Controller used primarily in Ovation Simulator systems.The SIM Co

19、ntroller is a standard controller that has the ability to be directed to use simulated I/O instead of the actual hardware I/O system.This capability allows the control schemes to be interfaced with a process model or simulation. A basic factory acceptance test process model allows the controller to

20、be tested by simulating the basic I/O functions such as value and direction. The SIM Controller capability can also be used with other fidelity models, such as a High Fidelity process plant model supplied in an Ovation Simulator System. An Advanced Controller is an additional licensed software capab

21、ility that provides the ability to run advanced functionality algorithms. These licensed algorithms include sootblowing, neural networking, fuzzy logic, MPC, DMX, and other advanced algorithms which can use the redundant reliable execution environment provided by the Ovation Controller.The Ovation V

22、irtual Controller is a software licensed capability which recreates the Ovation hardware controller with RTOS on a Windows PC platform. It is used primarily in Ovation Simulator Systems which use non-redundant virtual controllers to decrease the hardware footprint. The Virtual controller has most of

23、 the interface attributes of a standard, SIM or advanced controller except for hardware I/O support.RedundancyThe Ovation Controller is designed to accommodate multiple levels of redundancy for key components, including: Ovation Network interface Functional processor, memory, and network controller

24、Processor power supply I/O interfaces Input power feed I/O power supply Auxiliary power supply Remote I/O communications mediaThe standard hardware configuration for controller redundancy is a passive backplane base on which both a primary and a backup controller are installed. Redundant 24V power i

25、s connected to the unit which is individually distributed to the controllers. Each controller consists of two modules, one providing the processor, memory, Ovation networking, and additional networking connections. The other module provides the interface to both local and remote Ovation and Q Line I

26、/O, plus internal powering.Fully redundant pairs of controllers are equipped with: Dual Intel functional processors Dual network interfaces Dual processor power supplies Dual I/O power supplies Dual auxiliary power supplies Dual input power feeds Dual I/O interfacesEach functional processor in the r

27、edundant pair executes the same application program, although only one accesses the I/O and runs in the control mode at a time. The partner processor runs in the backup, configure, or offline modes with differences between them alarmed.Control ModeIn the control mode, the primary processor functions

28、 as it would in a non-redundant controller. It has direct access to the I/O to read,write, and execute both data acquisition and control functions. In addition, the primary processor monitors the status and health of its backup partners processor and network.Backup ModeIn the backup mode, the backup

29、 processor performs diagnostics and monitors the status and health of the primary processor. The backup processor maintains up-to-date data by polling the control processors database memory and receiving all of the information that the control processor sends over the Ovation Network, including: pro

30、cess point values, algorithm tuning constants, and variable point attributes.Automatic Failover ControlThe redundancy function of the Ovation Controller is equipped with automatic failover control; if the processor in control mode fails, watchdog detection circuitry disables the I/O interface of the

31、 primary processor and informs the backup processor of the failure. The backup processor then takes control of the I/O bus and begins to execute the process controlapplication program and broadcast information over the Ovation Network.Ovation Controllers use a continual process of control memory upd

32、ating to keep both the control and backup processors synchronized.This process uses either the Ovation Network or a private network connection. The employed method is user selectable depending upon control task requirements or available network port usage. This allows the algorithms to track the out

33、put values, pass the information upstream, and apply the data during the first pass of execution. The result is a bumpless failover, even in the case of a malfunction. A full range of events can trigger automatic failover, including: Control processor failure Network controller failure I/O interface

34、 failure Removal of power from the control processor Control processor resetOnce the control is passed to the backup processor, the failed processor may be powered down, repaired, and powered back up with no harmful effects on the executing control strategy.On restart, the repaired processor will de

35、tect that its partner is in control and assume the backup role. The processor in control will detect the presence of the backup processor and adjust for redundant operation.Open ArchitectureThe open architecture of the Ovation Controller uses a powerful real-time operating system running on PCI bus

36、PC architecture. This design allows rapidly advancing technology to be easilyintegrated into the systemprotecting your investment in software.爱默生控制器特征安全，可靠且任务关键性的控制能力，提供无扰自动故障转移之间的冗余控制器。多样的控制能力用图形控制相结合，产品技术调制，顺序，序列，和数据采集。一步的数据采集功能，通过定义的I / O数据基础。占地面积小，低功耗和无风扇运作。本土接口，Ovation，并wdpf输入/输出，在本地和远程。 集成虚拟输入

37、/输出能力，为第三党的OEM系统通过以太网议定书。 非挥发性储存应用软件，点数据库，配置信息，以及经营调谐常数。 管理，由商业，实时操作系统，它支持多任务和先发制人的任务调度，以posix1003.1b开放系统的标准。 集成的一系列事件的能力，拥有1毫秒的决议案。Ovation控制器 艾默生过程管理的Ovation专家控制系统包含了一个强大的控制器的安全，任务关键型业务，例如那些对供电，供水厂。在Ovation控制器简单或复杂的调制和顺序控制策略，进行数据采集功能及介面，向Ovation网络和各种输入/输出子系统。它有能力源于高达16000点。过程中的应用 在Ovation控制器的目的是为了满

38、足苛刻的要求了广泛的应用进程。它具有诸多功能，其中包括： 连续（ PID控制）的控制布尔逻辑先进控制特殊逻辑和定时功能数据采集事件的顺序处理冷端温度补偿过程点传感器/限价检查过程点报警处理过程点转换到工程单位过程点数据库存储本地和远程输入/输出接口过程点tagout标准控制器的功能控制执行 在Ovation控制器，它的英特尔处理器，能够同时执行多达5个过程控制任务，在闭环速度从10毫秒到30 seconds.each控制任务组成的I / O processpoint输入扫描时，控制计划的执行，然后由一个输出扫描。两所控制任务闭环速度，是预定在1秒钟和100毫秒。其他三个控制任务，可以有用户可选

39、择环路speeds.individual控制薄片，是用户分派到这些工作的负担，使控制执行回路倍，以恰当的职能正在得到控制。控制线路 控制计划的执行由Ovation控制器，是指由建筑控制薄板广泛的一套算法。对照表就是控制，就是执行后，文件的控制，以及在线监测图是用于运行和诊断过程。该控制器可提供为执行多达6000张的控制。事情的进展 积分事件的顺序（国有企业）的处理能力，提供经Ovation和Q线输入/输出子系统和标准控制器软件。同一项决议案，一毫秒，国企子系统记录序列，其中用户自定义设置的数字输入条件发生了。除了以更高的解析度时间标签，国企点是可在管制计划，像任何其他I / O点，其中包括限制

40、检查和令人震惊。报警处理 基于每个过程点数据库定义，Ovation控制器进行所有的限制，并报警处理功能，通常与数据采集系统（ DAS ） 。在扫描输入与控制执行或默认的1秒钟之扫描。该状况（包括报警状态）的所有点，在控制器的更新和播出上Ovation网络。广泛的信息包括在该状态信息广播。举例来说，地位可以表明一点，有两种措施之一： 超出范围的传感器超出用户定义的限制改变状态通过增量极限如果需要的话，警报报告可以推迟对每点的基础上，由用户指定的时间期限。 加上工作站，Ovation控制器有能力在报告中6个独立的报警阈值，其定义为： 四高限额用户定义的高限最高加增量界限四种低限用户定义的低限最低加

41、增量界限该工作站将有能力排序警钟，基于对用户选定的警报意义的水平。警钟指定将包含作为警戒或资料时，就显示报警画面。操作界面处理 在Ovation控制器进行整限制，并报警处理的基础上，数据库的配置，为每一个点上。但是，该控制器的操作界面功能，使这些职能将暂停在必要时，由工艺状态或经营人的行动，这也是日志。这些措施包括扫描清除，报警断流，进入阀，报警，并限制检查悬架和类似的功能，这也是根据Ovation安全功能。控制器类型 在Ovation控制器，可以提供additionalcapabilities与附加软件许可证的SIM控制器，先进的控制器，或both.another持牌控制器类型，是Ovation虚拟控制器主要用于Ovation模拟器系统中的SIM控制器是一个标准的控制器，有能力针对使用模拟输入/输出，而非事实上的硬件输入/输出系统中的能力，使管制计划，要与界面的一个过程模型或模拟。一个基本的工厂验收测试过程模型允许控制器测试，通过模拟的基本输入/输出功能，如价值和方向。 SIM卡控制器的能力，也可以被用来与其他富达模式，如高逼真度的过程模型提供了一个Ovation模拟器系统。一个先进的控制器，是一种额外的正版软件的能力，提供能够运行更先进的功能，算法。这些领有牌照的算法包括吹灰，神经网络，模糊逻辑，多用途储值卡，产品代言人，以及其他先进