Allen-Bradley 1756-L71S是GuardLogix 5570控制器，是Lgix5000控制器系列的一部分。這是一個(gè)具有安全功能的ControlLogix控制器。這是一個(gè)雙處理器解決方案，必須與1756-L7SP安全模塊一起使用，以符合SIL3或Cat。4/PLe安全標(biāo)準(zhǔn)。安全伙伴控制器是自動(dòng)配置的，作為單個(gè)項(xiàng)目提供了主要優(yōu)勢(shì)。它具有強(qiáng)大的運(yùn)動(dòng)處理能力和速度以及高性能邏輯。它有一個(gè)用于通信的USB端口，可以支持多達(dá)500個(gè)控制器連接。1756-L71S控制器具有2MB用戶(hù)存儲(chǔ)器、1MB安全存儲(chǔ)器和0.98MBI/O存儲(chǔ)器

1756-L71

1756-EN2T A-B 以太網(wǎng)通信模塊分散控制系統(tǒng)是專(zhuān)門(mén)為工業(yè)過(guò)程控制設(shè)計(jì)的過(guò)程儀表控制系統(tǒng)，也稱(chēng)為集散控制系統(tǒng)。按照可編程控制器的發(fā)展歷程和DCS發(fā)展歷程的分析，分散控制系統(tǒng)的主要應(yīng)用場(chǎng)合是連續(xù)量的模擬控制，而可編程控制器的主要場(chǎng)合是開(kāi)關(guān)量的邏輯控制。因此在設(shè)計(jì)思想上有一定的區(qū)別。
在工廠自動(dòng)化或計(jì)算機(jī)集成過(guò)程控制系統(tǒng)中，為了分散危險(xiǎn)和分散功能，采用分散綜合的控制系統(tǒng)結(jié)構(gòu)?？删幊炭刂破魇欠稚⒌淖灾慰刂葡到y(tǒng)，它可以作為下位機(jī)完成分散的控制功能，與直接數(shù)字計(jì)算機(jī)的集中控制比較有質(zhì)的飛躍。這種遞階控制系統(tǒng)也是分散控制系統(tǒng)的基礎(chǔ)。

1756-L71

The Allen-Bradley 1756-L71S is the GuardLogix 5570 controller, part of the Lgix5000 controller family. This is a ControlLogix controller with security features. This is a dual-processor solution that must be used with the 1756-L7SP security module to comply with SIL3 or Cat. 4/PLe Safety standard. The Security Partner controller is automatically configured and offers major benefits as a single project. It has powerful motion processing power and speed as well as high-performance logic. It has a USB port for communication and can support up to 500 controller connections. The 1756-L71S controller has 2MB of user memory, 1MB of security memory, and 0.98MBI/O memory

The 1756-EN2T A-B Ethernet communication module decentralized control system is A process instrument control system specially designed for industrial process control, also known as distributed control system. According to the analysis of the development of programmable controller and DCS, the main application of distributed control system is continuous analog control, and the main application of programmable controller is the logic control of switching quantity. Therefore, there are certain differences in design ideas.
In factory automation or computer integrated process control system, in order to disperse risk and disperse function, a decentralized integrated control system structure is adopted. Programmable controller is a decentralized autonomous control system, which can be used as a subordinate computer to complete decentralized control functions, and has a qualitative leap compared with the centralized control of direct digital computer. This hierarchical control system is also the basis of decentralized control systems.

1756-L71