* 技術(shù)參數(shù)說明：KJ3242X1-BK1 EMERSON s系列現(xiàn)場總線H1卡
選擇 Profibus PA 或基金會現(xiàn)場總線有什么不同？
就過程操作的控制和診斷而言，現(xiàn)場總線是最合適的網(wǎng)絡(luò)總線。這是因為在實時性要求高的應(yīng)用場合，現(xiàn)場總線可提供“智能"設(shè)備和系統(tǒng)之間高可靠性的兩向通信。
但是由于不同的現(xiàn)場總線技術(shù)具有不同的屬性。為使現(xiàn)場總線的收益，您必須做正確的選型。過程自動化中泛采用的兩種現(xiàn)場總線是基金會現(xiàn)場總線和 Profibus PA。本課程將有助于您確定哪種現(xiàn)場總線更適合您的需要。
提示：當(dāng)您瀏覽本課程的主題時，請留心如下問題的答案：
? 基金會現(xiàn)場總線的物理層與 Profibus PA 的物理層有何異同？
? 基金會現(xiàn)場總線中控制執(zhí)行應(yīng)放在何處？Profibus PA 中又如何？
? 這兩種現(xiàn)場總線如何實現(xiàn)可互操作性？
Profibus PA 和基金會現(xiàn)場總線的一些區(qū)別反應(yīng)在其不同的起源上。
Profibus 系列協(xié)議的設(shè)計是針對 PLC 系統(tǒng)的通信等級場合，主要用于離散制造業(yè)和樓宇自動化。它包括三種協(xié)議，每種協(xié)議有其各自不同的功能和應(yīng)用場合。
? Profibus FMS 作為 PLC 系統(tǒng)的架構(gòu)，用于連接用戶界面、PLC 和 CNC 裝置等等。
? Profibus DP 則主要用于離散過程，比如產(chǎn)品裝配線，包裝生產(chǎn)線、樓宇自動化，電機控制和物料輸送系統(tǒng)。
? 在上述兩種早期協(xié)議的基礎(chǔ)上，Profibus PA 將Pfofibus的用途擴展到過程工業(yè)中。Profibus PA和 DP 的區(qū)別在物理層。
另一方面，基金會現(xiàn)場總線的設(shè)計目標(biāo)是滿足過程自動化行業(yè)的需求—包括在總線上實現(xiàn)可靠而有效的實時過程控制。
由于 Profibus PA 和基金會現(xiàn)場總線都是數(shù)字總線，他們較傳統(tǒng)的點對點接線有一定的優(yōu)勢。一些優(yōu)勢是由總線的物理層特性所決定的，而另一些則是由總線的應(yīng)用軟件所決定。
我們可以比較 Profibus PA 和基金會現(xiàn)場總線在上述應(yīng)用場合中各自的優(yōu)勢 — 以及可能對您總線選型的影響。
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KJ3242X1-BK1
What is the difference between choosing Profibus PA or Foundation Fieldbus?
For the control and diagnosis of process operation, fieldbus is the most suitable network bus. This is because in applications where real-time requirements are high, fieldbuses can provide highly reliable two-way communication between “smart” devices and systems.
However, different fieldbus technologies have different attributes. To maximize the benefits of fieldbuses, you must make the right selection. The two most widely used fieldbuses in process automation are the Foundation fieldbus and Profibus PA. This course will help you determine which fieldbus is best suited to your needs.
Tip: As you navigate through the topics of this course, keep an eye out for answers to the following questions:
? How is the physical layer of Foundation Fieldbus different from that of Profibus PA?
? Where should control execution be placed in the Foundation fieldbus? What about Profibus PA?
? How can the two fieldbuses be interoperable?
Some of the differences between Profibus PA and Foundation Fieldbus reflect their different origins.
The Profibus protocol family is designed for the communication level of PLC systems, mainly used in discrete manufacturing and building automation. It consists of three protocols, each with its own different functions and applications.
? Profibus FMS is the architecture of the PLC system, used to connect the user interface, PLC and CNC devices, etc.
Profibus DP is mainly used in discrete processes such as product assembly lines, packaging lines, building automation, motor control and material handling systems.
Building on these two earlier protocols, Profibus PA extends the use of Pfofibus to the process industry. The biggest difference between Profibus PA and DP is at the physical layer.
The Foundation Fieldbus, on the other hand, was designed to meet the needs of the process automation industry – including reliable and efficient real-time process control on the bus.
Since Profibus PA and Foundation Fieldbus are both digital buses, they have certain advantages over traditional point-to-point wiring. Some of the advantages are determined by the physical layer characteristics of the bus, while others are determined by the application software of the bus.
We can compare the advantages of Profibus PA and Foundation Fieldbus for each of these applications – and the possible impact on your bus selection.
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無論是新的還是停產(chǎn)的，從最小的模塊到完整的配置。我們有多年的產(chǎn)品不容易獲得，和介于兩者之間的所有其他產(chǎn)品。
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*您可能需要的某些零件 ：KJ3242X1-BK1 EMERSON s系列現(xiàn)場總線H1卡
| SCHROFF MPS022 13100-203 | CTI 2500-RBC 901E-2500-RBC | B&R 5AP1130.156C-000 |
| NI GPIB-140A/2 | GE IC695CPU315-BB | ABB CI570 3BSE001440R1 |
| ABSOLUTE API4380-G | FOXBORO FBM230 P0926GU | EMERSON 1C31203G01 |
| ALSTOM V4561983-0100 V4559856 | FOXBORO FBM233 P0926GX | ENTERASYS A4H124-24TX P0973JM |
| HIMA F8650X 984865065 | HIMA X-FAN1003 993201013 | SCHUMACHER ATCS-15 1464-0320 |
| ABSOLUTE API4380G | HIMA LM002_MAX 985020002 | FOXBORO FBM230 P0926GU |
| KROHNR OPTIFLUX4300W IFC300W | HIMA X-DI1601 985210222 | GE F650-N-F-L-F-2-G-1-HI-P-6E |
| PROSOFT PTQ-PDPMV1 | HIMA X-BLK01 632590802 | Sartorius MDB-8E |
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