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原文: UMC800 Control Builder Users Guide Doc. No.: 51-52-25-63 Release: E Last Revision Date: 1/01 Notices and Trademarks Copyright 2001 by Honeywell Release E January, 2001 Overview UMC800 Overview Introduction The Universal Multi-loop Controller (UMC800) is a modular controller (see Figure 1) designed to address the analog and digital control requirements of small unit processes. With up to 16 analog control loops, four set point programmers, a set point scheduler, and an extensive assortment of analog and digital control algorithms, the UMC800 is an ideal control solution for furnaces, environmental chambers, ovens, reactors, cookers, freeze dryers, extruders, small boilers, and other processes with similar control requirements. Accommodating up to 64 universal analog inputs, 16 analog outputs, or 96 digital inputs or outputs, the UMC800 provides the appropriate balance of input and output hardware for these smaller unit processes. Split architecture The UMC800 uses a split architecture that separates the control functions from the operator interface functions to provide greater installation flexibility. Controller The controller is composed of a CPU with two serial communication ports, power supply, and a backplane assembly. It incorporates a card rack that is capable of supporting up to 16 input and output modules that can be mixed to satisfy the hardware requirements of a specific application. Modules are available in ten different configurations to support both analog and digital inputs and outputs of various types and signal levels. Each module has a removable terminal block accepting #16 AWG wire. An optional RS485 serial communication card that supports both slave data exchanges with a host PC for centralized operation and data management and/or communications via a Modbus RTU master to other Honeywell or 3rd party compatible products. Operator interface The operator interface uses a color graphic LCD display to provide a variety of screen presentations for viewing control loops, setpoint programs, and other analog and digital status. Modification and customization of the operator interface are performed using UMC800 Control Builder software. With the software, data points can be identified (tagged) using eight character names. Once named, these data points may be accessed by the operator interface using a standard set of display formats and a predefined menu hierarchy. Customized display access and the assignment of selected display screens to keyboard buttons may be developed using Control Builder software. Selected screens such as bar graphs, trends, and overview displays will require the user to specify the individual data points to be represented on the screen. A menu selection allows the user to select from English, French, Italian, Spanish or German languages. Control Builder A separate “Control Builder” configuration software program is used for UMC800 Controller and Operator Interface configuration and operates on a Windows 95, 98 or Windows NT-based PC. The software program uses graphic symbols and line drawing connections to create custom control strategies. All configuration is performed off-line (computer disconnected from the controller and operator interface). The configuration is downloaded in a separate operation as a complete file through a dedicated RS-232 communication port on the controller. Once a configuration is installed into the controller and operator interface, the Control Builder software may be used to monitor areas of the configuration to verify proper operation. Menus are provided in the software to allow selection of screens for the operator interface and to customize screen access methods and operator keys. Completed configurations are loaded into the control system using a dedicated communication port in the controller or, optionally, via floppy disk from the operator interface. Loop control The UMC800 supports up to sixteen control loops with PID, ON/OFF, Carbon Potential, or 3 Position Step control action. Control loops may be configured to operate independently or in cascade. Operator entered setpoints may be limited by independent high and low limit values and setpoint rate of change limits are available to protect critical products during process changes. When Feedforward operation is applied, a separate Feedforward gain adjustment is available to tune the loop for the appropriate Feedforward response. When Ratio control is applied, a ratio and bias adjustment are provided. When used with the supplementary loop control blocks, digital inputs may be used to set control mode, select the setpoint source, change control action, and perform other discrete actions. A status block provides digital outputs to facilitate integrating loop operation with other functions in the controller. When configured for dual output (heat/cool), each output may be directed to different output types, for example: current, time proportioning, etc. Two sets of tuning constants for heating and cooling are also provided. Accutune Honeywells Accutune IITM automatic tuning algorithm with Fuzzy Logic Overshoot Suppression is available for each loop of the controller. Initiated on command from the operator interface or through a digital input to the loop, this easy to operate feature optimizes control performance with a minimum of process disturbance. Logic The controller offers up to 96 digital inputs or outputs and uses digital function blocks to perform Boolean logic operations and sequences. The digital function blocks may be programmed to operate on a fixed 100- millisecond update rate or on the slower analog measurement scan rate as determined during configuration. Alarms Alarm monitoring may be assigned to the digital status of analog alarm blocks, or other digital block status. Each PID loop also provides up to four alarms of various types. Alarm flexibility is also expanded using the analog alarm block, which allows selective set-up of alarm hysteresis, deviation alarms, on delay, selective latching, and a disable input to control when the alarm is active. Active alarm indication is provided on all operator displays and alarm group displays are provided to view and acknowledge active alarms. An alarm detail display is provided for each alarm point which indicates the time and data of last alarm occurrence and offers 40 characters of user specified text for alarm actions or notes. Up to 120 alarms may be configured and applied to loop alarms or digital tags. Function block configuration The UMC800 uses function block configuration architecture to develop control strategies for both analog and digital operations. A function block may represent a physical input or output, several physical inputs or outputs, an internal calculation, or an internal function such as a PID algorithm. All configuration is done using the Control Builder software. A summary of the assortment of greater than 75 standard UMC800 function block algorithm types follows. Typically, a function block algorithm type may be used any number of times up to the limit of 250 blocks. Some of those with specific limits are: PID and ON/OFF control loops and associated support blocks eight or sixteen maximum Setpoint programmer blocks and associated support blocksfour maximum Setpoint Scheduler blocks and associated support blocksone maximum Time proportioning output blockssixteen maximum Pushbutton blocksfour maximum 4 Selector Switch blocksfour maximum Modbus Slave blockssixteen maximum Digital I/O and digital function blocks are scanned and executed every 100 milliseconds. Analog I/O and analog function blocks are processed at a rate based on the quantity of I/O and the number of function blocks contained in the controller. Operator interface displays configuration Modification and customization of the operator interface are performed using UMC800 Control Builder software. With the software, data points can be identified (tagged) using eight character names. Once named, these signal tags may be accessed by the operator interface using a standard set of display formats and a predefined menu hierarchy. Customized display access and the assignment of selected display screens to keyboard buttons may be developed using “Control Builder” software. Selected screens such as bar graphs, trends, pushbutton actions and overview displays will require the user to specify the individual signal tags to be represented on the screen. Setpoint programming Up to four independent, setpoint-programming blocks may be configured in the controller using the “Control Builder” software. A single program (profile) may be from 2 to 50 segments in length. Up to 70 programs are stored in the controllers memory. Each segment of the program may be a ramp or a soak except the last step that must be a soak. In addition to the main ramp and soak output value, a second analog value (Aux. Output) is available for each step of the program. This output is a fixed soak value that may be used to provide a setpoint value for a secondary control loop in the process. An example would be a ramp and soak temperature program combined with pressure setpoints for each step of the program. Setpoint scheduler A suite of Setpoint Scheduler blocks may be configured for multi-setpoint control. The suite is comprised of a Master block, Auxiliary Setpoint block, Auxiliary Event block, State Switch Block, and State Flags block. (See Figure 46.) The Master block supports up to 8 ramp or soak outputs operating on a common time base. It accepts one PV for each setpoint and is shown on the Operator Interface scheduler screen. Setpoint guarantee is provided for the master (SPS) block setpoints with a single symmetrical value for each setpoint output. You can assign a failsafe value for each setpoint. The Auxiliary block supports up to 8 soak only outputs. The Event block supports up to 16 event outputs. A single schedule may be up to 50 segments in length and includes auxiliary block data. Up to 10 schedules may be stored in the controllers memory. Setpoint Schedules offer the same operating modes and digital controls as setpoint programs. On-line editing of a running schedule is supported through dedicated operator interface displays 译文: UMC800 Control Builder 使用指南 编号: 51 52 25 63 版本: E 最后修正时间为: 1/01 警告和商标 2001 年版权为霍尼韦尔所有 2001 年一月版本为 E 概述 UMC800 的概述 绪论 万能控制器( UMC800)是一个被设计用于模拟数字控制小单位程序的需求的一种标准组件的控制器( 如图 1)。一个控制器最多能够安装 16 个模拟控制回路, 1 个 CPU 模板, 4 个设定点程序、并具有丰富的模拟和数字控制算法,UMC800 是一个理想的工业炉控制方案, 特别适合于工业炉、环保设备、化学反应器、加热炉、锅炉、空压机、冷冻机、鼓风机、冷冻干燥器等 工艺设备 。 UMC800 为小型过程提供了输出和输入的 可扩展性,适应于 64 个 模拟量输入,和 16 个模拟量输出,或 96 个 I/O 输入或输 出。 UMC800 采用模块式结构,其控制器模件和操作模板相分离,使其具有较大的安装灵活性。 控制器 控制器由一个带有两个串行通信接 口、电源和一个集成模板的 CPU 构成。它最多能够安装 16 个输入和输出模板的插卡式机架,并能够被组合去满足一个特殊的应用程序的硬件需求。 模块可用 10 个不同结构去支持不同型号和信号水平的模拟和数字的输入和输出。每个模块都有一个可移动的接线板提供 16AWG 线的端口。 一个可行性的 RS-485 转换器, 可直接同 PC 机相连,由于采用了 Modbus通讯协议,所以还可与网络上的其它设备进行数据交换,完成监控与控制功能,实现从局部控制到整体的协调与数据共享。 操作员界面 操作员接口采用 LCD 彩色显示屏, 可用于观查和监控控制 回路、设定点程序和其它模拟与数字功能。操作员接口可完成的修改和定制进行使用 UMC800控制器软件。 以软件 , 数据点可接受 8个输入字符名字。 一旦命名 , 这些数据点也许由操作员接口获取使用标准套显示形式和一个被预定义的菜单阶层。 定制的显示通入和选择的显示屏的任务操作按钮也许被开发使用控制器软件。 选择的屏幕 譬如条线图 , 趋势 , 并且概要显示将要求用户指定各自的数据点代表在屏幕 菜单选择允许用户挑选英语 , 法语 , 意大利语 , 西班牙语或德语语言 组态软件 一个分开的“控制组态”配置软件程序被使用为 UMC800 控制器和操作员接口配置在 Windows 95, 98 or Windows NT-based PC 上打开,人机程序使用图表标志和图线描述连接具有创造性。 所有配置是执行的 离线的 (计算机被分开从控制器和操作员接口 ) 配置被下载在分开的操作如同一个完全文件通过 RS-232 通信端口接到控制器。一旦配置被安装入控制器和操作员接口 , 控制组态软件就可能被用来对完成监控与控制功能的操作。 菜单被提供在软件允许屏幕的选择为操作员接口和定做屏幕存取方式和操作员钥匙。 完整的配置被装载入控制系统中使用一个通信端口在 控制器或任意地通过软盘连接到操作员接口。 控制回路 UMC800 可完成最多 16 个 PID 式 ON/OFF 的控制回路, C, 三位步进控制。每个 控制回路都可能提供自整定。 操作员被输入的设定点程序也许由独立限制到处极限值和设定点程序变化率极限有时间保护重要产品在处理变动期间。 当应用比率控制时 , 比率和偏压调整被提供。 当使用以补充圈控制块 , 数字输入也许被使用设置控制方式 , 选择设定点程序来源 , 改变控制活动 , 并且进行其它分离行动。 状态块提供数字输出促进集成操作以其它作用在控制器。 当配置为双重产品 (热 /冷 ), 各产品有控制输出类型 , 例如 : 电流 , 时间成比例等。 二套定调的常数为热化和冷却并且被提供。 精度 霍尼韦尔的集成模块 都提供自整定,模糊逻辑抑制超调等各种算法。初始命令从操作员接口或通过数字输入模块进入,这种容易操作的特点优先控制表现以处理干扰的极小值。 逻辑性 控制器提供 96 个数字输入或输出并使用数字式的功能块来执行布尔逻辑操作和排列。数字式功能块可以被编程操作固定的 100 毫秒更新率或在更加缓慢的模式测量扫描速率依照配置期间而被确定。 报警 报警监控可被分配到报警模式块的数字式模块,或其他数字式模块。 每个PID 中可以提供各种各样的类型的四个报警。报警的灵活性并且被扩展应用到报警功能块中,允许报警滞后作用是有选择性设定的,偏差报警,延迟报警,有选择性锁上,并且功能失效时,输入控制报警是有效的。 有效的报警表示被提供
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