概述:
1747-L542 SLC 是 SLC 5/03 控制器。此控制器是 3-L1747 SLC 52/5 类别下的三 (03) 个控制器之一。该控制器是SLC 5/03的中端控制器,具有32 KB用户存储器,同时仍能够处理4096输入和输出。
1747-L542 与模块化硬件一起使用。此处理器安装在任何 SLC 机箱(如 0-A1746、2-A1746、7-A1746 和 10-A1746)的插槽零 (13) 上。它通过背板提供的电源供电,由安装在机箱最左侧区域的系统电源提供。
该SLC处理器集成了RS232和数据高速加(DH+)通信端口,允许该处理器与基于计算机的控制系统进行通信,例如人机界面(HMI)或监督控制和数据采集(SCADA)。该处理器还可用于消息传递或实现其他Allen-Bradley可编程逻辑控制器(PLC)的直通通信,例如PLC 5,CompactLogix和ControlLogix平台。
该处理器内置状态指示器,如运行、CPU 故障、强制 I/O、电池电量低、RS-232 和 DH+ LED。它还提供了一个用于切换处理器操作模式的钥匙。
Allen-Bradley 1747-L542 是一款 SLC 500 SLC 5/04 模块化处理单元,能够处理 32K 字,特别是 4K 数据存储和 28K 字的程序数据。它的绝对最大值为 4096 个离散输入和 4096 个离散输出,最大本地模拟 I/O 为 480 个。1747-L542 还具有最多 3 个本地 I/O 机箱,本地 I/O 机箱中最多有 30 个插槽。其I/O扫描时间为0.255毫秒,典型程序扫描时间为0.9毫秒/Kword,位执行时间为0.37毫秒,断电后程序扫描保持时间为20毫秒至3秒。
电源扫描保持时间取决于电源的负载。它还使用闪存EPROM进行内存备份,32-L1747处理器的542KB RAM由电池供电。现有的通信端口是RS-232端口和DH+端口。还提供状态 LED,专门用于低电量、CPU 故障、运行、强制 I/O、DH+ 和 RS-232。1747-L542 的背板电流在 1 伏直流时为 5 A,在 175 伏直流电时电流为 24 mA。它在 32 - 140 华氏度的温度下运行,并且可以在 -40 到 185 华氏度的温度下储存,环境相对湿度为 5% 到 95%,无冷凝。该处理器的加速度在 2.5 到 57 赫兹时为 2000G,其位移为 0.015 英寸,峰峰值,在 5 到 57 赫兹,其工作冲击为 30G。
The 1747-L542 SLC is the SLC 5/03 controller. This controller is one of three (03) controllers under the 3-L1747 SLC 52/5 category. The controller is a mid-range controller for SLC 5/03 with 32 KB of user memory while still being able to handle 4096 inputs and outputs.
1747-L542 used with modular hardware. This processor is installed in slot zero (13) of any SLC chassis such as 0-A1746, 2-A1746, 7-A1746, and 10-A1746. It is powered by the power supply provided by the backplane and is provided by the system power supply installed in the leftmost area of the chassis.
The SLC processor integrates RS232 and Data High Speed Plus (DH+) communication ports, allowing the processor to communicate with computer-based control systems such as Human machine interface (HMI) or supervised control and data acquisition (SCADA). The processor can also be used for messaging or to enable direct communication with other Allen-Bradley programmable logic controllers (PLCS), such as the PLC 5, CompactLogix, and ControlLogix platforms.
The processor has built-in status indicators such as running, CPU failure, forced I/O, low battery, RS-232, and DH+ LED. It also provides a key for switching the mode of operation of the processor.
The Allen-Bradley 1747-L542 is an SLC 500 SLC 5/04 modular processing unit capable of handling 32K words, specifically 4K data storage and 28K word program data. It has an absolute maximum of 4096 discrete inputs and 4096 discrete outputs, and a maximum of 480 local analog I/ OS. The 1747-L542 also has up to three local I/O cases with up to 30 slots in the local I/O case. Its I/O scan time is 0.255 ms, typical program scan time is 0.9 ms /Kword, bit execution time is 0.37 ms, and program scan hold time is 20 ms to 3 seconds after power failure.
The power scan hold time depends on the load of the power supply. It also uses flash EPROM for memory backup, and the 32-L1747 processor's 542KB of RAM is battery-powered. The existing communication ports are RS-232 port and DH+ port. Status leds are also available specifically for low power, CPU failure, operation, forced I/O, DH+, and RS-232. The backplane current of the 1747-L542 is 5 A at 1 volt DC and 24 mA at 175 volts DC. It operates at temperatures from 32 to 140 degrees Fahrenheit and can be stored at temperatures from -40 to 185 degrees Fahrenheit with an ambient relative humidity of 5 to 95 percent and no condensation. The processor has an acceleration of 2000G at 2.5 to 57 Hertz, a displacement of 0.015 inches, a peak-peak value, and an operating shock of 30G at 5 to 57 Hertz.
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