1756-L71 可编程自动化控制器

Allen-Bradley 1756-L71是一款ControlLogix可编程自动化控制器。它具有 2 MB 的用户内存可用存储空间和 0.98 MB 的 I/O 内存。它还具有板载 4 个字符的字母数字显示屏，可轻松监控运行时和模块信息以及控制器诊断。它有一个开放式外壳和内置的一 （1） 个 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。它还附带 1 GB 非易失性内存，但您可以使用 2-SD1784 将其升级到 2 GB。建议将SD卡留在控制器中。1756-L71 控制器附带三个电容储能模块，其中两个可拆卸。它在 5.1 伏直流电时的电流消耗为 2 mA，在 800.5 伏直流电时为 1 mA。1756-L71 控制器还具有 30 伏的连续隔离电压、2.5 瓦的最大功耗和 8.5 BTU/小时的热耗散。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 至 60 摄氏度，存储温度范围为 -40 至 85 摄氏度。其周围最高空气温度为60摄氏度，非冷凝相对湿度为5%至95%。控制器在 2 到 10 赫兹时具有 500G 的振动、30G 的工作冲击和 50G 的非工作冲击，在安装 SD 卡时下降到 45G。其他控制器可能要求用户了解第一个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，用户只需插入程序元素并选择I/O物理连接位置的逻辑通道。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，以获取模拟数据。该控制器仅要求用户找到物理端接 I/O 信号的逻辑通道。

Allen Bradley 1756-L71 is a ControlLogix Programmable Automation Controller. It has 2 MB of user memory available storage space and 0.98 MB of I/O memory. It also has an onboard 4-character alphanumeric display screen, which can easily monitor runtime and module information, as well as controller diagnosis. It has an open shell and one (1) built-in 2.0 full speed USB port. The 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 1 GB of non volatile memory, but you can upgrade it to 2 GB using 2-SD1784. It is recommended to leave the SD card in the controller. The 1756-L71 controller comes with three capacitor energy storage modules, two of which are detachable. Its current consumption is 2 mA at 5.1 V DC and 1 mA at 800.5 V DC. The 1756-L71 controller also features a continuous isolation voltage of 30 volts, a maximum power consumption of 2.5 watts, and thermal dissipation of 8.5 BTU/hour. Its maximum analog I/O, digital I/O, and total I/O are 4000, 128000, and 128000, respectively. Its operating temperature range is 0 to 60 degrees Celsius, and its storage temperature range is -40 to 85 degrees Celsius. The maximum air temperature around it is 60 degrees Celsius, and the non condensing relative humidity is 5% to 95%. The controller has a vibration of 500G, a working shock of 30G, and a non working shock of 50G at 2 to 10 Hz, which drops to 45G when installing an SD card. Other controllers may require users to understand the first PLC register, especially bytes and bits, in order to begin addressing program elements. Using 1756-L71, users only need to insert program elements and select the logical channel for the I/O physical connection location. In other PLCs, users may find it necessary to move registers to another register to initiate conversion and processing to obtain analog data. This controller only requires the user to find the logical channel for physically terminating I/O signals.