1747-L553A 中央处理器单元模块

1747-L553 是属于 SLC 500 可编程逻辑控制器 （PLC） 平台的 SLC 5/05 处理器。该控制器在 SLC 5/05 类别中具有最高的内存，即 64 KB 内存。它集成了 RS32 Sub-D 9 针连接器，用于与本地安装的人机界面 （HMI） 或编程工作站建立点对点通信。它还具有集成以太网，非常适合长距离通信，以 10/10 Mbps 的传输速度至少 100 米。它也是一次与多个设备建立连接的理想选择。这两 （2） 个端口也可以同时使用，而不会影响处理器的逻辑执行能力。

该控制器非常适合大中型应用，其控制要求范围从手动到自动控制离散或模拟环路，以及利用大量嵌入式指令实现复杂的控制技术。它可用于工厂自动化、过程自动化，甚至用于运动和位置控制要求。

它还能够通过指定的通信协议向其他 Allen-Bradley PLC 平台（如 PLC 5、CompactLogix 和 ControlLogix）发送消息。虽然集成了以太网和 RS232 端口，但该处理器可以安装远程 I/O （RIO）、Data Highway Plus （DH+）、DeviceNet 和 DH485 等通信适配器。

它可以安装在任何 SLC 500 机箱上。此处理器模块具有固定的插槽分配 Zero （0）。

它包含一个基于 PLC-5 处理器的高级指令集。1747-L553可以单独使用，也可以分布在整个系统中，用于SCADA应用。1747-L553 处理器的总用户内存为 64K 字，其中 60K 字用于数据/程序，4K 字用于仅数据。它具有多达 4096 个输入、4096 个输出和 480 个本地模拟 I/O。它每个关键字的程序扫描时间为 0.9ms，I/O 扫描时间为 0.225 毫秒。1747-L553 的背板电流为 1 安培（5 伏直流电）和 0 安培（24 伏直流电）。它最多有 3 个本地 I/O 机箱，本地 I/O 机箱中最多有 30 个模块 I/O 插槽。

对于通信，它使用以太网和 RS-232 端口，这些端口可以配置为连接到 1761-NET-AIC 转换器。它具有标准的电池备份RAM和闪存备份存储器。使用此处理器，可以额外安装远程 I/O 扫描仪模块和 DeviceNet 扫描仪模块，以通过通用远程链路或 DeviceNet 网络配置 I/O。1747-L553 处理器提供更短的位指令执行时间（0.37 毫秒）和 10/100 Mbps 以太网端口。它的 DH+ 通信端口比 DH-485 端口快 3 倍。它具有其他 SLC 5/03 处理器的所有功能，如在线编程、闪存升级、浮点数学以及内置实时时钟、按键开关和日历。1747-L553 适用于工作温度为 0 至 60 摄氏度且工作冲击为 30G 的清洁干燥工业环境。

1747-L553A 中央处理器单元模块

The 1747-L553 is an SLC 5/05 processor for the SLC 500 Programmable Logic Controller (PLC) platform. The controller has the highest memory in the SLC 5/05 category at 64 KB of memory. It integrates an RS32 Sub-D 9-pin connector for point-to-point communication with a locally installed human machine interface (HMI) or programming workstation. It also has integrated Ethernet, which is ideal for long-distance communication, with a transfer speed of at least 100 meters at 10/10 Mbps. It's also ideal for connecting to multiple devices at once. These two (2) ports can also be used simultaneously without affecting the logic execution ability of the processor.

The controller is ideal for medium to large scale applications, with control requirements ranging from manual to automatic control of discrete or analog loops, as well as complex control techniques utilizing a large number of embedded instructions. It can be used in factory automation, process automation, and even for motion and position control requirements.

It is also capable of sending messages to other Allen-Bradley PLC platforms such as PLC 5, CompactLogix, and ControlLogix over specified communication protocols. Although integrated with Ethernet and RS232 ports, the processor can install communication adapters such as Remote I/O (RIO), Data Highway Plus (DH+), DeviceNet, and DH485.

It can be installed on any SLC 500 chassis. This processor module has a fixed slot allocation Zero (0).

It contains an advanced instruction set based on the PLC-5 processor. The 1747-L553 can be used alone or distributed throughout the system for SCADA applications. The 1747-L553 processor has a total user memory of 64K words, of which 60K words are for data/programs and 4K words are for data only. It has up to 4096 inputs, 4096 outputs, and 480 local analog I/ OS. It has a program scan time of 0.9ms per keyword and an I/O scan time of 0.225 ms. The backplane currents of the 1747-L553 are 1 amp (5 volts DC) and 0 amp (24 volts DC). It has up to 3 local I/O enclosures and up to 30 module I/O slots in the local I/O chassis.

For communication, it uses Ethernet and RS-232 ports, which can be configured to connect to the 1761-NET-AIC converter. It has standard battery backup RAM and flash backup memory. With this processor, an additional remote I/O scanner module and a DeviceNet scanner module can be installed to configure I/O over a common remote link or DeviceNet network. The 1747-L553 processor offers a shorter bit instruction execution time (0.37 ms) and a 10/100 Mbps Ethernet port. Its DH+ communication port is 3 times faster than the DH-485 port. It has all the features of other SLC 5/03 processors, such as online programming, flash upgrades, floating point math, and a built-in real-time clock, key switches, and calendar. The 1747-L553 is suitable for clean and dry industrial environments with an operating temperature of 0 to 60 degrees Celsius and a working impact of 30G.