接著學習文件。先吐槽一下，我在轉到某浪自己的部落格時，居然說有敏感詞，真是活久見。

1.2 Communication

通訊

1.2.1 System

系統

TCP/IP, UDP/IP
The Control Net (Ethernet) connects the individual stations with each other. Ittransfers data between the controllers and between Freelance Operations, thegateways and Freelance Engineering. The AC 900F controller supports data sendingand receiving through TCP/IP (Ethernet-based sending/receiving) and/or UDP/IP(lateral communication). Additional application layers can be implemented bydownloading them on the controllers. Simultaneous operation of TCP/IP, UDP/IPand application layer is also ensured.

控制網路（乙太網）將各個站連線起來。它在控制器和freelance操作員站、閘道器、工程師站之間傳輸資料。AC900F支援通過TCP/IP 和/或 UDP/IP傳送和接收資料。通過下載到控制器來實現附加應用層。TCP/IP、UDP/IP和應用層的操作同時實現。

The data distribution at the bus is based on the Ethernet switch. The max. datatransmission rate is 10 Mbit/s for 10 Base T and max. 100 Mbit/s for Fast-Ethernet.

分佈於總線上的資料基於乙太網交換。星形聯網拓撲結構（10 Base T)最大的資料傳輸速率是10 Mbit/s，快速乙太網的傳輸速率是100Mbits/s.

Twisted pair cables with RJ45 connector are used as transmission medium. Themaximum cable length is 100 m at a maximum transmission speed of Mbit/s.

RJ45雙絞線作為傳輸介質，在100MBits/s速率下最遠傳輸距離是100米。

Detailed diagnostic messages for rapid fault localization can be retrieved via thediagnostic interface and/or the Freelance Engineering software。

通過診斷介面和/或freelance工程師軟體，可以快速定位診斷資訊的細節。

1.2.2 Fieldbusses

現場匯流排

PROFIBUS®

PROFIBUS-DP is designed for rapid data exchange in the field area. Central controlunits communicate with decentralized field devices like remote I/O, transmitters ordrives etc. using a fast serial connection. The data exchange with the distributedmodules is mainly performed on a cyclic basis. PROFIBUS-DP is optimized interms of high speed and simple device connection. This protocol variant isspecifically designed for the communication between programmable controllers anda distributed I/O level. The AC 900F controller supports PROFIBUS Masterredundancy.

PROFIBUS-DP設計用於現場區域的快速資料交換。中央控制單元和分散現場裝置——遠端IO、變送器或者驅動等等——進行通訊。使用快速串列埠連線。在週期基礎上執行和分散式模板的資料交換。PROFIBUS-DP在高速和簡單裝置連線上進行了優化。此協議變體專為可程式設計控制器與分散式 I/O 級別之間的通訊而設計.AC900F控制器支援作為PROFIBUS主的冗餘。

For additional information on PROFIBUS-DP and the PROFIBUS CI/CM modules,please refer to Section 3, Modules as well as to the Engineering Manual,Communication and Fieldbusses.

有關 PROFIBUS-DP 和 PROFIBUS CI/CM 模組的更多資訊，請參閱第 3 節、模組以及工程手冊、通訊和現場匯流排。

Modbus

Numerous automation systems support the Modbus protocol by default or as anoptional feature. This ensures easy communication with the AC 900F processstation via on-board SER interfaces using the RS232/RS485 standards(MODBUS®) or TCP/IP (MODBUS TCP®). The Modbus protocol also ensuresprocess data exchange with other systems via the serial or the Ethernet interfaces ofthe AC 900F.

多數控制系統預設支援Mdubus協議或者將其作為可選項。這確保了通過板載介面以RS232/RS485或者TCPIP與AC900F做MODBUS通訊。MODBUS協議確保了通過AC900F上的串列埠或者乙太網介面與其他系統的過程資料交換。

This protocol allows data to be transmitted in either master or slave mode. For theconfiguration with serial interface, a specific MODM_DEV interface object must beassigned in the hardware structure. The interface-specific parameters are defined inthis block.

協議允許資料以主或者從模式傳輸。對於串列埠配置，必須在硬體結構中分配MODM_DEV介面物件。介面特定引數在此塊中進行定義。

For the TCP configuration (Ethernet), a specific MTCP_DEV interface object mustbe assigned in the hardware structure。

對於TCP配置（乙太網），必須在硬體結構中分配特定的MTCP_DEV介面物件。

Please refer to the Engineering Manual, Communication and Fieldbusses and theEngineering manual, System Configuration, Hardware Structure for moredetailed information.

有關詳細資訊，請參閱《工程手冊》、《通訊和現場建設手冊》和《工程手冊》、《系統配置》、《硬體結構》

Telecontrol protocol

遠端控制協議

The function blocks of the Telecontrol library are designed for the connectionbetween the Freelance Engineering tool and external systems. The link is made viathe serial interface (RS-232) or the Ethernet interface of the CPU module. TheTelecontrol protocol complying to IEC 60870-5-101 (serial)/IEC 60870-5-104(TCP/Ethernet) is used.

遠端控制庫的函式功能塊設計用於freelance工程工具和外部系統的連線。該連結通過序列介面 （RS-232） 或 CPU 模組的乙太網介面進行。遠端控制協議符合IEC 60870-5-101 (serial)/IEC 60870-5-104(TCP/Ethernet) 。

For the serial interface, the Telecontrol protocol provides device modules forsymmetrical data transmission (FWK_DEV), asymmetrical data transmission as amaster (FWK_DEV_M) and asymmetrical data transmission as a slave(FWK_DEV_SL). These modules are configured in the hardware structure. Pleaserefer to the Engineering Manual, System Configuration, Hardware Structure formore detailed information.

對於串列埠，遠端控制協議為對稱資料傳輸 （FWK_DEV）、主不對稱資料傳輸（FWK_DEV_M）和從不對稱資料傳輸(FWK_DEV_SL)提供裝置模組。這些模組在硬體結構中進行配置。有關詳細資訊，請參閱《工程手冊》、《系統配置》、《硬體結構》。

For Ethernet-supported communication, the Ethernet interface and the parameters ofthe IEC 60870-5-104 compliant protocol must be set in the FWK_DEV_104function block designed for Telecontrol connection in the Ethernet network. TheFWK_DEV_104 device module can be configured in the hardware structure belowthe Ethernet interface of the AC 900F.

對於乙太網支援的通訊，乙太網介面和IEC 60870-5-104合規協議的引數必須設定在FWK_DEV_104函式功能塊，FWK_DEV_104裝置模組可配置在 AC 900F 乙太網介面下方的硬體結構中。

ABB CAN Bus protocol

ABB CAN匯流排協議

The CAN Bus of the AC 900F controller is intended to be used for connecting rackbasedFreelance I/O modules only. With this feature, all CPU module types ofAC 900F can alternatively take over the tasks of the CPU module types DCP 02/10of the Freelance rack system.

AC 900F 控制器的 CAN 匯流排僅用於連線基於機架的freelance I/O 模組。藉此功能，AC 900F 的所有 CPU 模組型別都可以替代freelance機架系統的 CPU 模組型別 DCP 02/10 的任務