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可編程序邏輯控制器翻譯-中英對照

發布時間:2013-7-29      閱讀次數:1276

可編程序邏輯控制器翻譯-中英對照
負責工廠的正常運轉。所有設備的不同程序控制功能通過它來執行,包括,運行時通過本地控制面板進行控制。在緊急情況桌面和控制安裝指令不會傳輸到PLC。
只要采用了充足的保護措施,輸入和輸出數據和指令(RIO)可以安裝在監控點附近。CPU修正的RIO必須通過光纖電纜傳輸,并設計有不同的冗余和線路。所有工廠和子系統必須通過網絡連接到PLC;不同標準安裝的設施必須通過輸入和輸出模塊連接。VSB團隊必須通知供應商使用的PLC制造商的姓名。一同確定符合工廠要求的模件功能和未來施標準。如果事先獲得VSB團隊授權,可以使用不同供應商的PLC。
供應商和VSB團隊之間,必須對整個開發和標識(標記)、安排、指令,存儲圖等的理念進行討論。所以VSB團隊必須提出一個具體標準指南或確認開發商的介紹或共同研討。
編程語言采用梯邏輯和功能結構圖。如果無法避免, 其他語言只允許在指定功能的自定義操作塊之內進行。
電,自動化和測量系統¤
規格和設施指南

15.5 一般概念:
15.5.1 在基本的項目階段期間,自動化系統的所有設備和元件的建筑以及供電理念必須由VSB事先批準。
15.5.2 必須考慮PLC的數字,不僅包括“全周期,而且必須與工廠互動;如有可能,即使CUP無法運行,其它部件可以繼續運行而不受影響;
15.5.3 試運行后,PLC的CPU必須至少留有30%的記憶空間;
15.5.4 同一個模塊所有輸入和輸出(輸入/輸出)不應該集中在相同模塊,如果這個模塊發生故障,所有相似的設備的控制數據不會丟失。
15.5.5冗余數據或模擬信號必須連接到不同的PLC模塊。
15.5.6 應該預設每個PLC模塊的獨立保護裝置。
15.5.7 如果PLC式模塊沒有任何保護反對大氣浪涌,必須安裝流電絕緣材料。
15.5.8 PLC的所有不同的輸入/輸出模塊必須至少留有15%預配備件。
15.5.9 所有PLC底板必須至少留有10%自由槽孔擴容。
15.5.10 遵照以下標準,作為參考:
ISA-C 5.1儀器工作標志和標識
ISA-C 5.2處理操作二進制邏輯圖
ISA-C 5.3分布控制/共享顯示儀器、邏輯和計算機系統圖形符號
ISA-C 5.4儀器回路圖
ISA-C 5.5處理顯示圖形符號
ISA-C 20程序測量和控制儀器、主要元件和控制閥規格圖
ISA-C RP60控制中心設施
ISA-C 88成批控制
技術規格
電,自動化和測量系統¤
規格和設施指南
ANSI ISA-C 95企業-C控制系統一體化
ANSI ISA-C 99制造業和控制系統安全
IEC 61131-3可編程序邏輯控制器               
15.5.11 PLC和SCADA裝置的構造必須完好,當執行任務時以便容易了解并保持良好的操縱穩定性。這些指令必須使用葡萄牙語,并且,如果不可行,在事先通過VSB團隊的批準,使用英語指令。
15.5.12 VSB團隊必須接受所有與開發項目有關的原始代碼,并且擁有所有使用軟件的許可證明。許可證明必須允許自由安裝到多個機器,方便開發和維護。 必須在具體項目開始之前證實該問題。
15.5.13 供應商必須以書面方式提交自動化系統相關重要設備(即再熱爐)故障的后備計劃。
16儀器工作
儀器工作必須為工廠執行所有必要的測量和控制功能。控制設想理念必須獲得工廠供應商和VSB團隊的同意,有益于最大限度的積累雙方的專業技術。次級供應商名單包含僅第一等級制造商應用的模型必須事先獲得VSB團隊的批準。要求項目開發和儀器工作元件的規格符合標準VS-E-011-2。
16.1 普通條款:
16.1.1 所有發射機必須有測量的可變物的本地顯示。
16.1.2 主要儀器供應必須通過UPS進行。注意安裝設施的整體電磁兼容性。
16.1.3 必須預見穩定電源發射機冗余24 Vdc。不同的電源供應不同的電路。
16.1.4 發射機和其他智能類型元件必須應用在主要功能并且通過PROFIBUS PA連接互聯網。
15.4 Programmable Logical Controller (PLC)
It must be responsible for the plant operation proper. All process control function of variables
and commands for the equipment must be executed through  it,  including, while the
operation is running, via the local control panels. Only the commands installed on the
emergency desks and panels will not pass through the PLC.
Data inputs and outputs and commands (RIO) may be installed near the monitoring and
control points, as long as they are sufficiently protected. The correction of these RIO's with
the CPU's must be made via fiber optic with different redundancy and routes.
All the plant's units and subsystems must be connected to the PLC via network and those
different from the installation standard must be connected via input and output modules.
VSB will inform the supplier the name of the PLC manufacturer to be used. The model will
be jointly determined in function of the plant's requirements and the standardization in view
of future facilities. The use of PLC's from different suppliers in one plant will not be allowed,
except if there is previous authorization by VSB.
The entire philosophy for developing and identification (tags), arrangement, comments,
memory map, etc. will be discussed between the developer and the VSB team at an
opportune time. Therefore VSB must present a specific standard guideline or validate the
developer's presentation or, still, develop it together.
The programming language must be Ladder Logic and/or the Function Block Diagram.
Other languages will be allowed only, if unavoidable, within customized operational blocks
for specific functions.
|       Issue Date       | 18/06/2008         |      Revision      |      002     | Revision Date   |         04/09/2008         | Page 20 of 25 |
 
TECHNICAL SPECIFICATION
ELECTRICAL, AUTOMATION AND INSTRUMENTATION SYSTEM -SPECIFICATION AND INSTALLATION GUIDELINE  VS1
15.5       General concepts:
15.5.1 The architecture, as well as the electrical supply philosophy for all equipment and elements
of the automation system, must previously be approved by VSB already during the basic
project stage.
15.5.2 The number of PLC's must be determined by considering not only the "Total Cycle Time" but
also the interdependence of the plant's areas, thus making it possible that, even if some
CPU is out of operation, other parts of the plant, whose operation can continue, will not be
affected.
15.5.3 The CPU's of the PLC's must have at least 30% spare space in the program's memory,
considered after commissioning.
15.5.4 All inputs and outputs (l/O's) of the same functionality should not be concentrated in the
same module so that, if this module fails, the control of all similar equipment will not be lost.
15.5.5 Redundant digital or analog signals must be connected to different PLC modules.
15.5.6 Independent protection devices for each PLC module should be foreseen.
15.5.7 Galvanic insulation  must be installed if the PLC's analog modules do not have any
protection against atmospheric surges.
15.5.8 All different I/O modules of the PLC must have at least 15% of prewired spares.
15.5.9 All PLC backplanes must have at least 10% free slots for future expansions.
15.5.10 The following standards, as reference, are to be complied with:
ISA- 5.1 Instrumentation Symbols and Identification
ISA - 5.2 Binary Logic Diagrams for Process Operations
ISA - 5.3 Graphic Symbols for Distributed Control/Shared Display Instrumentation, Logic
and Computer Systems
ISA - 5.4 Instrument Loop Diagrams
ISA - 5.5 Graphic Symbols for Process Displays
ISA - 20 Specification Forms for Process Measurement and Control Instruments, Primary
Elements, and Control Valves
ISA - RP60 Control Center Facilities
ISA - 88 Batch Control
|       Issue Date       | 18/06/2008         |      Revision      |      002     | Revision Date   |         04/09/2008         | Page 21 of 25 |
 
TECHNICAL SPECIFICATION
ELECTRICAL, AUTOMATION AND INSTRUMENTATION SYSTEM -SPECIFICATION AND INSTALLATION GUIDELINE  VS1
ANSI ISA - 95 Enterprise - Control System Integration ANSI ISA - 99 Manufacturing and Control Systems Security IEC 61131-3 Programmable Logic Controllers
15.5.11 The PLC and the SCADA must provide a well-structured base of comments with the
purpose to facilitate understanding and agility when performing tasks. These comments
must be in the Portuguese language and, should this not be possible, VSB must previously
authorize that in such cases the comments will be in English.
15.5.12 VSB must receive all source codes related to the developed programs, as well as all used
software licenses. The licenses must provide freedom to install a sufficient number of
machines for optimum performance of development and maintenance. This matter must be
clarified prior to the Detailed Project.
15.5.13 The supplier must present in writing a Contingency Plan for the case of failure in the
automation system related to critical equipment (e.g. reheating furnaces).
16 INSTRUMENTATION
The instrumentation must perform all necessary measurement and control functions for the plant's perfect functioning. The control philosophy must always be

agreed between the plant's supplier and the VSB team, benefiting at maximum from the know-how accumulated by the parties. The list of sub-suppliers may

 contain only first class manufacturers and the models to be applied must be previously approved by the VSB team. Knowledge of standard VS-E-011-2 is

mandatory for the project's development and the specification of the instrumentation elements.
16.1       General conditions:
16.1.1 All transmitters must have a local indication of the measured variable.
16.1.2 The supply of the main instruments must be made via UPS. Attention must always be paid
to the installation's electromagnetic compatibility as a whole.
16.1.3 Redundant 24 Vdc stabilized sources for supplying the transmitter must be foreseen. Each
source must be supplied by different circuits.
16.1.4 Transmitters and other intelligent type elements must be applied in the main functions and
interconnected via PROFIBUS PA network.


2013.7.29

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