1747-L551处理器单元

Allen-Bradley 1747-L551 处理器硬件集成了 16 KB 的程序存储器。它是高性能控制器，能够控制多达 4096 个输入和输出点。该模块支持运行时编辑等在线和离线编程。Allen-Bradley 1747-L551 具有通道到通道、远程 I/O 和 DeviceNet 直通功能。该模块还具有内置的实时时钟和日历。该模块带有一个用于网络连接的以太网端口和一个用于对等通信的 RS232 端口。RS-232 通道支持 DF1 全双工、DF1 半双工主机和 DF1 无线电调制解调器。集成以太网端口支持内置 10/100 Base-T 以太网通道，支持 SNMP、BOOTP、扩展消息传递功能和高速通信。对于编程，它包括高级数学指令和各种附加指令。它还包括对间接寻址的支持。SLC 505 的每个关键字的典型程序扫描时间为 0.9 毫秒，典型的 I/O 扫描时间为 0.225 毫秒

根据 UL 508、CSA C22.2 No. 142 标准，该模块具有 150 伏交流电的绝缘耐受性。1747-L551 的工作振动为 2.5G，频率为 5 至 2000 赫兹。非工作振动为 5G，频率为 5 至 2000 赫兹。该模块的通信电路之间的隔离电压约为 500 V DC。该模块的背板和 I/O 之间的隔离电压为 1500 伏交流电。在安装和卸载 I/O 设备之前，请断开控制器和为 I/O 设备供电的其他电源的电源。1747-L551的工作温度为32到140华氏度，存储温度在-40到185华氏度左右。Allen-Bradley 1747-L551 的工作冲击为 30G（3 个脉冲，11 毫秒）。非操作性冲击为 50G（3 个脉冲，11 毫秒）。相对湿度为 5-95%，非冷凝。该模块的扫描时间通常约为 0.9 毫秒/K。它的 LED 灯将指示几种不同的情况，包括模块何时运行、CPU 发生故障、电池电量不足、I/O 被强制使用或以太网/RS-232 端口处于活动状态。

The Allen-Bradley 1747-L551 processor hardware incorporates 16 KB of program memory. It is a high-performance controller capable of controlling up to 4096 input and output points. The module supports online and offline programming such as runtime editing.The Allen-Bradley 1747-L551 features channel-to-channel, remote I/O, and DeviceNet passthrough capabilities. The module also has a built-in real-time clock and calendar. The module has an Ethernet port for network connectivity and an RS232 port for peer-to-peer communication.The RS-232 channel supports DF1 full-duplex, DF1 half-duplex host, and DF1 radio modems. The integrated Ethernet port supports a built-in 10/100 Base-T Ethernet channel with SNMP, BOOTP, extended messaging capabilities, and high-speed communications. For programming, it includes advanced math instructions and a variety of additional instructions. It also includes support for indirect addressing, and the SLC 505 has a typical program scan time of 0.9 milliseconds per keyword and a typical I/O scan time of 0.225 milliseconds.

The module has an insulation resistance of 150 volts AC according to UL 508, CSA C22.2 No. 142. 1747-L551 has an operating vibration of 2.5G at 5 to 2000 Hz. The 1747-L551 has an operating vibration of 2.5 G at 5 to 2000 Hz and a non-operating vibration of 5 G at 5 to 2000 Hz. The isolation voltage between the module’s communication circuits is approximately 500 V DC. The isolation voltage between the module’s backplane and I/O is 1500 V AC. Disconnect the controller and other power supplies powering the I/O devices before installing and removing the I/O devices.The 1747-L551 has an operating temperature of 32 to 140 degrees Fahrenheit and a storage temperature of about -40 to 185 degrees F. The Allen-Bradley 1747-L551 has an operating shock of 30G (3 pulses, 11 milliseconds). Non-operating shock is 50G (3 pulses, 11 ms). Relative humidity is 5-95%, non-condensing. The module’s scan time is typically about 0.9 ms/K. Its LEDs will indicate several different conditions, including when the module is running, the CPU has failed, the battery is low, I/O is forced, or the Ethernet/RS-232 port is active.