產(chǎn)品內容介紹
Reliance 803456-4T電源模塊
執行機構引起電氣、機械或氣動(dòng)動(dòng)作的裝置在工廠(chǎng)組件內需要時(shí)。例如閥門(mén)和泵。
AITA模擬輸入終端組件。
報警和事件（AE）提供帶有時(shí)間戳的報警和事件通知的OPC數據類(lèi)型。
分配的過(guò)程安全時(shí)間分配給該子功能的總過(guò)程安全時(shí)間的一部分過(guò)程application AADvance中包含的編譯器生成的輸出二進(jìn)制文件
工作臺軟件和AADvance Trusted SIS Workstation軟件。一旦編譯后，將應用程序下載到控制器。體系結構計算系統的組織結構，描述板級、設備級和系統級之間的功能關(guān)系組件。
異步描述串行傳輸協(xié)議的數據通信術(shù)語(yǔ)。A開(kāi)始信號在每個(gè)字節或字符之前發(fā)送，停止信號在每個(gè)字符之后發(fā)送字節或字符。例如RS-232-C上的ASCII。另請參閱“RS-232-C、RS422、RS-485”。
可用性系統能夠執行其指定功能的概率
當需要使用時(shí)-通常以百分比表示。背板夾一種彈簧式塑料裝置，用于將兩個(gè)相鄰的AADvance底座單元固定在一起。零件號9904。成對使用。
基本單元構成AAD葉片支撐部件的兩種設計之一控制器。
請參閱“I/O基本單元”和“處理器基本單元”。
綁定綁定描述了不同AADvance中變量之間的“關(guān)系”控制器。一旦一個(gè)變量“綁定”到另一個(gè)變量在兩個(gè)變量和SIL 3認證之間建立關(guān)系SNCP協(xié)議用于驗證消費變量是否更新為來(lái)自生產(chǎn)變量的數據。
黑色通道其層（即布線(xiàn)、連接、介質(zhì)）的通信路徑轉換器、路由器/交換機和相關(guān)固件/軟件等）沒(méi)有要求維護通過(guò)其傳輸的安全關(guān)鍵數據的完整性。
檢測和補償引入黑色的任何錯誤的措施
通道必須由安全關(guān)鍵發(fā)送方和接收方實(shí)施（通過(guò)軟件和/或硬件手段），以確保數據保持其完整性。
封口蓋在A(yíng)ADvance底座單元中隱藏未使用插槽的塑料模制件。
布爾值只能接受值“true”和“false”的變量類(lèi)型。
BPCS基本過(guò)程控制系統。響應輸入信號和產(chǎn)生輸出信號，導致過(guò)程和相關(guān)設備以所需的方式操作，但不能實(shí)現任何安全性聲稱(chēng)安全完整性級別為1或更高的儀表功能。
參考IEC 61511或ANSI/ISA-84.00.01-2004第1部分（IEC 61511-1 Mod）了解正式定義。
等同于IEC 61508定義的過(guò)程控制系統（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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