1785-L80E   传统可编程逻辑控制器（PLC）

艾伦-布拉德利1785-L80E是艾伦-布拉德利的传统可编程逻辑控制器（PLC）。该PLC非常适合具有复杂控制要求的大型应用。它能够在手动和自动模式下实施离散和模拟控制，实施运动、计算、计数和部署先进的控制算法，如比例+积分+微分（PID）控制。

该控制器有一个不可扩展的100k字用户存储器，用于存储用户程序和配置。用户存储器的内容由目录号为1785-XYC的锂电池保存。非易失性存储器备份设备可以安装到控制器，以补充内部用户存储器。该控制器的兼容存储设备为16K字的1785-ME16、s 32K字的1785-ME32、64K字的1785-ME64和100K字的1785-ME100。

1785-L80E具有嵌入式通信端口，允许控制器与不同的工业设备通信，并实现分布式I/O应用。该通信端口包括一个用于点对点通信的25针RS232通信端口。它支持DF1全双工和半双工协议。它还有一个8针迷你DIN编程终端，1A和1B组合端口通道，可配置为数据高速公路加(DH+)和远程I/O (RIO)适配器或扫描仪。它还有一个以太网通信端口，支持10/100 Mbps，具有自动协商功能。这些通信接口独立运行，也可以同时运行。可以独立操作，也可以同时操作。

该控制器支持安装总共93个I/O机箱，每个链路最多32个远程I/O机箱，能够控制多达3072个任意组合或3072个输入+ 3072个输出(补充)的I/O。

1785-L80E安装在1771 I/O机箱的最左侧插槽上，在5 VDC时消耗3.6A底板电流，运行时每小时散发65 BTU热量。控制器使用1770-XYC电池模块来维护易失性用户内存，并使用1785-ME16、1785-ME64、1785-ME32或1785-M100内存模块锂电池作为内存备份。

1785-L80E支持8点、16点、32点和1771智能I/O模块，扩展本地I/O适配器的最大I/O扫描时间为0.5毫秒，远程I/O机架的最大扫描时间为10毫秒(57.6 kbps)，远程I/O机架的最大扫描时间为3毫秒(230.4 kbps)。该处理器具有100K字SRAM的最大用户存储器，并支持最多24个I/O机架和最多65个I/O机箱链接。

处理器以3种不同的模式处理I/O硬件，2插槽模式处理8点模块和16点模块对的任意组合，1插槽模式处理8点和16点模块和32点I/O模块对的任意组合，半插槽模式支持8点、16点和32点模块的任意组合。1785-L80E具有1个专用15针以太网通信端口、2个用于连接DH+网络的数据高速公路Plus（DH+）/远程I/O（适配器或扫描）端口、1个RS-232-C、422-A和423串行通信端口。它有一个内部电路时钟，每月精度变化+/- 5分钟，额定工作温度范围为0至60摄氏度（32至140华氏度），非冷凝湿度为5至95%，无需降额。它可以在10-500赫兹下承受30克的工作冲击和1克的振动而不会降额，并通过了CSA、C-TICK、CE和UL认证。1785-L80E重约1.38千克（3.0磅），配有开放式外壳。

1785-L80E

The Allen-Bradley 1785-L80E is a legacy Programmable Logic Controller (PLC) by Allen-Bradley. This PLC is ideally is used for Large applications with complex control requirements. It is capable of implementing discrete and analog control in both manual and automatic modes, implement motion, calculation, counting and deployment of advanced control algorithms such as Proportional + Integral + Derivative (PID) control.

This controller has a non-expandable user memory amounting to 100KWords used for storing user programs, and configuration. The contents of the user memory is maintained by a Lithium battery with catalog number 1785-XYC. Non-volatile memory backup devices may be installed to the controller to complement the internal user memory. Compatible memory devices for this controller are 1785-ME16 for 16K words, 1785-ME32 for s 32K words, 1785-ME64 for 64K words and 1785-ME100 for 100K words.

The 1785-L80E has embedded communication ports that allow the controller to communicate with different industrial devices and implement distributed I/O applications. This communication ports include a 25-Pin RS232 communication port used for point-to-point communication. It supports DF1 Full and Half duplex protocols. It also has an 8-Pin mini-DIN programming terminal, Channels 1A and 1B combo ports that are configurable for Data Highway Plus (DH+) and Remote I/O (RIO) Adapter or Scanner. It also has an Ethernet communication port that supports 10/100 Mbps with auto-negotiation capability. These communication interface functions independently and may operate simultaneously. can be operated independently and simultaneously.

This controller supports installation of a total of 93 I/O chassis with a maximum of 32 Remote I/O chassis per link, capable of controlling I/Os up to 3072 any mix or3072 in + 3072 out (complement).

The 1785-L80E is installed on the leftmost slot of the 1771 I/O chassis and draws 3.6A backplane current at 5 VDC and dissipates 65 BTU/hour heat when operational. The controller uses the 1770-XYC battery module for maintaining the volatile user memory and either the 1785-ME16, 1785-ME64, 1785-ME32, or the 1785-M100 memory modules lithium battery as memory backups.

The 1785-L80E supports the 8-point, 16-point, 32-point, and the 1771 intelligent I/O modules, and it has a maximum I/O scan time of 0.5 milliseconds for extended-local I/O adapter, 10ms for remote I/O rack at 57.6 kbps, and 3ms for remote I/O rack at 230.4 kbps transfer speed. The processor has a maximum user memory of 100K words SRAM and supports a maximum of 24 I/O racks, and a maximum of 65 I/O chassis link.

The processor addresses I/O hardware in 3 different modes, the 2-slot mode which address any mix of 8-point module, and a 16-point pair module, the 1-slot mode which addresses any mix of 8 and 16-point modules, and a 32-points I/O pair modules, and the half-slot mode supports any mix of 8, 16, and 32-points modules. The 1785-L80E has 1 dedicated 15-pin Ethernet communication port, 2 Data Highway Plus (DH+)/Remote I/O (Adaptor or Scan) ports for connection to the DH+ network, and 1 RS-232-C, 422-A, and a 423 serial communication port. It has an internal circuit clock with +/- 5 min per month accuracy variation and it has a rated operational temperature range of 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) at 5 to 95% non-condensing humidity without derating. It can meet an operational shock of 30G and a vibration of 1G at 10-500 Hertz without derating and is CSA, C-TICK, CE, and UL-certified. The 1785-L80E weighs approximately 1.38 kilograms (3.0 pounds) and comes with an open enclosure.