1756-L71 ControlLogix可编程自动化控制器

【功能描述】

Allen-Bradley 1756-L71是一款ControlLogix可编程自动化控制器。它有一个可用的存储2mb的用户内存和一个0.98 MB的I/O内存。它也有一个板载4字符字母数字显示，便于监控运行时和模块信息和控制器诊断。它有一个开放式的外壳和内置的一个(1)2.0全速USB端口。可用的通信选项包括DeviceNet、ControlNet、EtherNet/IP、Remote I/O Data Highway Plus、第三方进程和网络以及SynchLink。它还配备了1gb的非易失性内存，但你可以使用1784-SD2将其升级到2gb。建议将SD卡留在控制器内。1756-L71控制器配备了三个电容储能模块，其中两个是可拆卸的。在1.2伏直流电流下5毫安，在5.1伏直流电流下800毫安。1756-L71控制器的连续隔离电压为30伏，最大功耗为2.5瓦，散热为8.5 BTU/小时。它的最大模拟I/O、数字I/O和总I/O分别为4,000、128,000和128,000。它的工作温度范围为0 ~ 60摄氏度，储存温度范围为-40 ~ 85摄氏度。它周围的最高空气温度为60摄氏度，非冷凝相对湿度为5%至95%。控制器在10 ~ 500赫兹范围内振动2G，工作震动30G，非工作震动50G, SD卡安装后震动降至45G。其他控制器可能要求用户理解第一PLC寄存器，特别是字节和位，以便开始寻址程序元素。使用1756-L71，用户只需要插入一个程序元素并选择I/O物理连接的逻辑通道。在其他plc中，用户可能会发现需要将寄存器移动到另一个寄存器以启动转换和处理，以获得模拟数据。该控制器只要求用户找到I/O信号物理终止的逻辑通道。

该控制器是现代Logix控制器平台的一部分，被归类为可编程自动化控制器(PAC)。该PAC产品系列理想地用于中型到大型自动化要求，特别适合工厂和过程自动化行业的控制要求。

1756-L71主要具有2MB用户内存和0.98 MB I/O内存。另外，还配备了1gb非易失性内存(non-volatile memory)的1784-SD1 Secure Digital (SD)存储卡，如果更换为1784-SD2存储卡，就可以升级到2GB。该控制器可以处理多达128,000个离散输入和输出信号以及4000个模拟输入和输出信号。

作为一款现代控制器，1756-L71不使用电池来保留随机存取存储器(RAM)或易失性存储器的内容，而是配备了目录号为756-ESMCAP或1756-ESMCAPK的储能模块。该储能模块为可拆卸式电容储能模块。

对于工业通信，1756-L71支持安装通信适配器。1756-L71支持的其他通信协议包括以太网/IP、ControlNet、DeviceNet、Data Highway Plus、Remote I/O、SynchLink、第三方进程和设备网络。

该控制器为机箱式控制器。这意味着必须安装一个特定的ControlLogix机箱才能安装该模块。兼容机箱包括1756-A4、1756-A4K、1756-A7、1756-A7K、1756-A10、1756-A10K、1756-A13、1756-A13K、1756-A17、1756-A17 K。

1756-L71 ControlLogix可编程自动化控制器

The Allen-Bradley 1756-L71 is a ControlLogix programmable automation controller. It has an available storage of 2mb of user memory and an I/O memory of 0.98MB. It also has an onboard 4-character alphanumeric display for easy monitoring of runtime and module information and controller diagnostics. It has an open housing and a (1)2.0 full speed USB port built in. Available communication options include DeviceNet, ControlNet, EtherNet/IP, Remote I/O Data Highway Plus, third-party processes and networks, and SynchLink. It also comes with 1gb of non-volatile memory, but you can upgrade it to 2gb with the 1784-SD2. You are advised to leave the SD card in the controller. The 1756-L71 controller is equipped with three capacitive energy storage modules, two of which are removable. 5 MA at 1.2 VDC and 800 MA at 5.1 VDC. The 1756-L71 controller has a continuous isolation voltage of 30 volts, a maximum power consumption of 2.5 watts and a heat dissipation of 8.5 BTU/ hour. Its maximum analog I/O, digital I/O and total I/O are 4,000, 128,000 and 128,000, respectively. Its operating temperature range is 0 ~ 60 degrees Celsius, and the storage temperature range is -40 ~ 85 degrees Celsius. The maximum air temperature around it is 60 degrees Celsius and the non-condensing relative humidity is 5 to 95 percent. The controller vibrates 2G in the range of 10 ~ 500 Hz, 30G in operation, 50G in non-operation, and drops to 45G after SD card installation. Other controllers may require the user to understand the first PLC registers, especially bytes and bits, in order to begin addressing program elements. With 1756-L71, the user only needs to insert a program element and select a logical channel for the I/O physical connection. In other PLCS, users may find it necessary to move a register to another register to initiate conversion and processing to obtain analog data. The controller only requires the user to find the logical channel where the I/O signal is physically terminated.

The controller is part of the modern Logix controller platform and is classified as a Programmable Automation Controller (PAC). The PAC product family is ideal for medium to large automation requirements and is particularly suitable for the control requirements of the factory and process automation industry.

The 1756-L71 mainly has 2MB of user memory and 0.98 MB of I/O memory. In addition, the 1784-SD1 Secure Digital (SD) memory card is equipped with 1gb of non-volatile memory, which can be upgraded to 2GB if replaced with a 1784-SD2 memory card. The controller can process up to 128,000 discrete input and output signals and 4,000 analog input and output signals.

As a modern controller, the 1756-L71 does not use a battery to retain the contents of random access memory (RAM) or volatile memory, but is equipped with an energy storage module with the catalog number 756-ESMCAP or 1756-ESMCAPK. The energy storage module is a detachable capacitor energy storage module.

For industrial communications, the 1756-L71 supports the installation of a communication adapter. Other communication protocols supported by the 1756-L71 include Ethernet /IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink, third-party processes, and device networking.

The controller is a chassis controller. This means that a specific ControlLogix case must be installed to install the module. Compatible chassis include 1756-A4, 1756-A4K, 1756-A7, 1756-A7K, 1756-A10, 1756-A10K, 1756-A13, 1756-A13K, 1756-A17, 1756-A17 K.

1756-L71 ControlLogix可编程自动化控制器

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