繼續學習。
1 Process stations
過程站
1.1 Overview
概述
A scalable Freelance system essentially consists of the process and operator stations. You can perform the necessary configuration and commissioning tasks from your PC using the Freelance Engineering software. Diagnoses are performed in graphic interfaces.
一個可伸縮的freelance系統由過程站和操作員站組成。你可以使用電腦上的freelance 工程軟件執行配置和調試任務。圖形界面執行診斷。
Among the functions supported by Freelance Engineering are the following:
freelance工程下列功能：
- Read and enhance configuration data from new field devices.從新的現場設備中讀取和提高配置數據。
- Configure devices using the parameter setting dialogs and pre-defined I/O structures.使用參數設置對話框和預定義的I/O結構配置設備。
- Display bus cycle times and diagnostic data of devices.顯示總線周期和設備診斷數據。
- Search the buses for nodes with unknown device addresses.在總線中搜索具有未知設備地址的節點。
- Exclude individual devices from cyclic communication.將單個設備排除在循環通信之外。
- Integrate new devices without the need to re-initialize the bus line.無需初始化總線線路，集成新的設備。
To configure your automation task, first create the required resources and programs in the project tree using editors conforming to IEC 61131-3. In the next step, these configured applications are allocated to the actually required hardware in the hardware editor and then loaded online into the process stations.
為了配置自動化任務，首先使用符合IEC 61131-3的編輯器在項目樹中創建資源和程序。接下來，這些配置分配給硬件編輯器中實際需要的硬件，然后在線加載到過程站。
In order to facilitate the visualization of your process, powerful software packages such as Freelance Operations are available for operation.
為了促進過程可視化，諸如Freelance OPerations的強大的軟件包可供操作。
A Freelance system supports different types of process stations (controllers) which can be combined as required. Currently, the controller types AC 900F, AC 800F and AC 700F are available.
一個freelance系統支持不同的過程站，可根據需要組合。目前控制器有AC 900F、AC 800F、AC 700F可供選擇。
The Ethernet system bus links the individual stations with each other. This bus transmits the data between the process stations, the operator stations and the engineering station. Communication within the process station, i.e. data transmission between the CPU module and the connected modules, is realized via the internal station bus.
以太網系統連接各個站點。總線在過程站、操作員站、工程師站之間傳輸數據。站內通訊，也即CPU模板和鏈接模板之間的數據傳輸，是通過站內總線實現的。
Communication between the AC 900F process stations and operator/gateway stations as well as lateral communication between the AC 900F process stations can optionally be performed via a redundant Control Net.
AC 900F過程站和操作員/網關站之間的通訊，以及AC 900F過程站之間的橫向通訊，都可以可選地通過冗余控制網執行。
Control Net redundancy is supported by the following Freelance process stations:
下列Freelance 過程站支持控制網絡冗余：
- AC 900F
- AC 900F redundant
- AC 900F Lite
- AC 900F Lite redundant
- AC 900F Plus
- AC 900F Plus redundant
The following sections provide an overview of the currently available process stations. See the corresponding Mounting and Installation Instructions for more detailed information. Older hardware and process stations of previous system releases are also supported, but are not described in this manual. For information in this matter, see the manuals of the corresponding system releases.
以下部分概述了當前可用過程站。更多細節參見相應的安裝說明。也支持以前系統發布的舊硬件和過程站，但本手冊不支持。此事的更多信息，參閱相應系統發布手冊。
1.1.1 AC 900F process station
AC 900F過程站
The AC 900F process station is available in two variants, namely Standard, Lite and Plus version.
AC 900F過程站有兩個可用版本，命名為標准版，低配版和增強版。
The AC 900F Lite process station is designed for smaller lines:
AC 900F低配版過程站設計用於小型產線：
- there are only three instead of four Ethernet interfaces available,使用3個網口替代4個可用網口。
- the available memory capacity and the controller performance are lower than with the Standard version.可用內存容量和控制其性能低於標准版。
- it is recommended not to configure more than 400 I / O signals.建議配置的IO點數不要超過400個。
The AC 900F Plus process station is designed for larger lines:
AC 900F增強版過程站設計用大大型產線：
- four slots for fieldbus communication interfaces,四個現場總線通訊接口插槽。
- the available memory capacity and the controller performance are higher than with the Standard version.可用內存容量和控制器性能高於標准版本。
Details and technical data of the variants are included in the Mounting and Installation Instructions, AC 900F Controller.
各種細節和技術數據包含在《Mounting and Installation Instructions, AC 900F Controller.》（這個資料就是前面的練習連續學習翻譯的那本）
The descriptions in the present document generally apply to all variants; differences are explicitly specified, where applicable.
本文件的說明一般適用於所有變型;差異在適用時明確指定。
The AC 900F process station in the Standard version exhibits the following basic features:
標准版的AC 900F展示了下列特征：
- PM 902F CPU module with
PM 902F CP模板包含
–four Ethernet interfaces,四個以太網接口
–one diagnostic interface,一個診斷接口
–two serial interfaces,兩個串口
–one display unit (optional),一個顯示單元
–max. two fieldbus communication interfaces (PROFIBUS and/or CAN for Rack-I/O),最大兩個現場總線通訊接口（幾家安裝IO的Profibus 和/或 CAN）
–up to ten directly connected I/O modules with I/O terminal units. 通過IO終端單元，最多10個直接連接IO模板。
The AC 900F process station in the Plus version exhibits the following basic features:
AC 900F增強版過程站展示了一下基本特征：
- PM 904F CPU module with
PM 904F CPU模板包含
–four Ethernet interfaces, 四個以太網接口。
–one diagnostic interface, 一個診斷接口。
–two serial interfaces, 兩個串口
–one display unit (optional), 一個顯示單元
–max. four fieldbus communication interfaces (PROFIBUS and/or CAN for Rack-I/O), 最大四個現場總線通訊接口（幾家安裝IO的Profibus 和/或 CAN）
–up to ten directly connected I/O modules with I/O terminal units. 通過IO終端單元，最多10個直接連接IO模板。
The AC 900F process station in the Lite version exhibits the following basic features:
AC 900F低配版過程站展示了一下基本特征：
- PM 901F CPU module with
PM 901F CPU模板包含
–three Ethernet interfaces, 三個以太網接口。
–one diagnostic interface, 一個診斷接口。
–two serial interfaces, 兩個串口。
–one display unit (optional), 一個顯示單元。
–max. two fieldbus communication interfaces (PROFIBUS and/or CAN for Rack-I/O), 最大兩個現場總線通訊接口（幾家安裝IO的Profibus 和/或 CAN）
–up to ten directly connected I/O modules with I/O terminal units. 通過IO終端單元，最多10個直接連接IO模板。
Depending on the type and quantity of process signals, up to ten plug-in type input/output modules can be directly connected. Additionally, two (PM 901F /PM 902F) or four (PM 904F) extensive PROFIBUS lines can be connected via two/four PROFIBUS modules. The CAN module (max. one per controller) allows connection of a maximum of 5 rack I/O units and thus the connection of 45 I/O modules as used in the rack-based Freelance process stations.
依據過程信號的類型和數量，最多可以直接連接10個輸入/輸出模板。另外，通過2個/4個PROFIBUS模板，可以連接2個（PM 901F/PM 902F）或者4個（PM 904F)擴展PROFIBUS線路。CAN模板（每個控制器最多1個）允許最多5個I/O機架IO單元，因此可以連接45個基於機架的freelance過程站使用的I/O模塊。
 |
In a redundant AC 900F controller, the CI 930F and CI 773F PROFIBUS
modules respectively the CI 910F CAN module can be used. The CM 772F
PROFIBUS module does not support the redundancy mode.
在冗余AC 900F控制器中，CI 930F和CI 773F PROFIBUS模板分別使用CI 910F CAN模塊。
|
| 主控制器 | 副控制器 | 冗余切換 | ||
| 線路A | 線路B | 線路A | 線路B | |
| 正常 | 正常 | 正常/故障 | 正常/故障 | - |
| 故障 | 正常 | 正常 | 正常/故障 | 發生 |
| 故障 | 正常 | 故障 | 正常 | - |
| 正常 | 故障 | 正常/故障 | 正常/故障 | - |
| 故障 | 故障 | 正常 | 正常 | 發生 |
| 故障 | 故障 | 故障 | 正常 | 發生 |
| 故障 | 故障 | 正常 | 故障 | 發生 |
| 故障 | 故障 | 故障 | 故障 | - |