产品内容介绍
Reliance 803456-4T电源模块
执行机构引起电气、机械或气动动作的装置在工厂组件内需要时。例如阀门和泵。
AITA模拟输入终端组件。
报警和事件（AE）提供带有时间戳的报警和事件通知的OPC数据类型。
分配的过程安全时间分配给该子功能的总过程安全时间的一部分过程application AADvance中包含的编译器生成的输出二进制文件
工作台软件和AADvance Trusted SIS Workstation软件。一旦编译后，将应用程序下载到控制器。体系结构计算系统的组织结构，描述板级、设备级和系统级之间的功能关系组件。
异步描述串行传输协议的数据通信术语。A开始信号在每个字节或字符之前发送，停止信号在每个字符之后发送字节或字符。例如RS-232-C上的ASCII。另请参阅“RS-232-C、RS422、RS-485”。
可用性系统能够执行其指定功能的概率
当需要使用时-通常以百分比表示。背板夹一种弹簧式塑料装置，用于将两个相邻的AADvance底座单元固定在一起。零件号9904。成对使用。
基本单元构成AAD叶片支撑部件的两种设计之一控制器。
请参阅“I/O基本单元”和“处理器基本单元”。
绑定绑定描述了不同AADvance中变量之间的“关系”控制器。一旦一个变量“绑定”到另一个变量在两个变量和SIL 3认证之间建立关系SNCP协议用于验证消费变量是否更新为来自生产变量的数据。
黑色通道其层（即布线、连接、介质）的通信路径转换器、路由器/交换机和相关固件/软件等）没有要求维护通过其传输的安全关键数据的完整性。
检测和补偿引入黑色的任何错误的措施
通道必须由安全关键发送方和接收方实施（通过软件和/或硬件手段），以确保数据保持其完整性。
封口盖在AADvance底座单元中隐藏未使用插槽的塑料模制件。
布尔值只能接受值“true”和“false”的变量类型。
BPCS基本过程控制系统。响应输入信号和产生输出信号，导致过程和相关设备以所需的方式操作，但不能实现任何安全性声称安全完整性级别为1或更高的仪表功能。
参考IEC 61511或ANSI/ISA-84.00.01-2004第1部分（IEC 61511-1 Mod）了解正式定义。
等同于IEC 61508定义的过程控制系统（PCS）。
actuator A device which cause an electrical
mechanical or pneumatic action to occur when required within a plant component. Examples are valves and pumps. AITA Analogue input termination assembly. alarms and events (AE) An OPC data type that provides time stamped alarm and event notifications. allotted process safety time The portion of the total process safety time allotted to a sub function of that process. application The output binaries produced by the compiler included in the AADvance Workbench software and AADvance-Trusted SIS Workstation software. Once compiled, download the application to the controller. architecture Organizational structure of a computing system which describes the functional relationship between board level, device level and system level components. asynchronous A data communications term describing a serial transmission protocol. A start signal is sent before each byte or character and a stop signal is sent after each byte or character. An example is ASCII over RS-232-C. See also 'RS-232-C, RS422, RS-485'. availability The probability that a system will be able to carry out its designated function when required for use — normally expressed as a percentage.
backplane clip A sprung
plastic device to hold together two adjacent AADvance base units. Part number 9904. Used in pairs. base unit One of two designs which form the supporting parts of an AADvance controller. See 'I/O base unit' and 'processor base unit'. bindings Bindings describe a "relationship" between variables in different AADvance controllers. Once a variable is "bound" to another variable, a unique and strong relationships is created between the two variables and the SIL 3 Certified SNCP protocol is used to verify that the consuming variable is updated with the data from the producing variable. black channel A communication path whose layer (i.e. cabling, connections, media converters, routers/switches and associated firmware/software, etc.) has no requirement to maintain the integrity of safety critical data transferred over it. Measures to detect and compensate for any errors introduced into the black channel must be implemented by the safety critical sender and receiver (by software and/or hardware means) to make sure the data retains its integrity. blanking cover A plastic moulding to hide an unused slot in an AADvance base unit. boolean A type of variable that can accept only the values 'true' and 'false'. BPCS Basic process control system. A system which responds to input signals and generates output signals causing a process and associated equipment to operate in a desired manner, but which does not perform any safety instrumented functions with a claimed safety integrity level of 1 or higher. Refer to IEC 61511 or to ANSI/ISA—84.00.01—2004 Part 1 (IEC 61511-1 Mod) for a formal definition. Equivalent to the Process Control System (PCS) defined by IEC 61508.
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