1756-L84E 可编程自动化控制器

1756-L84E 具有 20MB 的内置用户内存。可以使用 1784-SD2 安装扩展非易失性存储器，这是一个 2GB 安全数字 （SD） 卡。该控制器不需要电池来保留易失性存储器的内容，因为它带有现代储能解决方案，无需使用电池，使控制器用户和环保。

Allen-Bradley 的 1756-L84E ControlLogix 5580 控制器是一款高性能控制器，具有高达 128，000 个 I/O，可增强机器自动化并提高性能。它带有 20MB 的用户程序存储内存，并允许通过可选的预装 2 GB 安全数字卡 （1784-SD2） 进行扩展和长期程序存储。控制器上嵌入了一个储能模块，无需额外的电池，整个控制器在 5.1V DC 时消耗 2mA 的背板电流，在 1.2V DC 时消耗 5.1mA 的背板电流。1756-L84E 的工作散热为 21.2 BTU/小时，并在 USB 端口到背板、以太网端口到背板和 USB 端口到以太网端口之间提供 50V 隔离，利用在 1000V AC 下测试的基本绝缘 1 分钟。

The 1756-L84E has 20MB of built-in user memory. You can use 1784-SD2 to install extended non-volatile memory, which is a 2GB Secure Digital (SD) card. This controller does not require batteries to retain the content of volatile memory, as it comes with modern energy storage solutions that eliminate the need for batteries, making the controller user friendly and environmentally friendly.

Allen Bradley's 1756-L84E ControlLogix 5580 controller is a high-performance controller with up to 128000 I/Os, enhancing machine automation and improving performance. It comes with 20MB of user program storage memory and allows for expansion and long-term program storage through the optional pre installed 2 GB secure digital card (1784-SD2). An energy storage module is embedded in the controller, without the need for additional batteries. The entire controller consumes 2mA of backplane current at 5.1V DC and 5.1mA of backplane current at 1.2V DC. The working heat dissipation of 1756-L84E is 21.2 BTU/hour, and provides 50V isolation between USB port to backplane, Ethernet port to backplane, and USB port to Ethernet port, utilizing basic insulation tested at 1000V AC for 1 minute.