1771-CFM 流量计模块

Description

1771-CFM 流量计模块

描述:1771-CFM模块是一种可配置的流量计模块。它是由艾伦-布拉德利/罗克韦尔自动化公司制造的，是PLC 5系列的一部分。1771-CFM可配置流量计模块支持4个数字I/O，这些数字输出在5至40伏直流电压下工作。这个流量计模块使用磁性拾音器，这是Bently 3300接近拾音器。1771-CFM可配置流量计模块只需要在底盘上安装1个槽，并通过保形涂层保护其免受腐蚀性化学品的侵害。

Allen-Bradley 1771-CFM是一个可配置的流量计模块。它用于自动化系统中，在接收到流量测量现场装置的信号后，快速准确地计算流量。也可用于轴速计算。该1771- cfm模块是艾伦-布拉德利1771系列模块，使plc和涡轮流量计，磁性拾起器，或单通道轴编码器之间的接口。它也可以用来计算流量信号从任何TTL脉冲源交付。Allen-Bradley 1771-CFM用于各种行业，如发电，石油，天然气，汽车，食品和饮料以及管道行业。操作人员几乎可以将其用于任何流量或涡轮计量应用。通过将该模块安装到PLC-5系统中，用户将简化编程并节省plc的内存。1771-CFM模块可直接替代1771-QRC和1771-QRD模块，无需对梯形逻辑进行任何更改。

这种可配置的流量计模块有四个输入通道，它可以根据从输入通道接收的值控制多达四个输出。用户可以在该设备上选择四种操作模式:不可复位累加器模式、累加器模式、高分辨率频率模式(通道0/1或通道2/3)和方向传感器模式(通道0/1或通道2/3)。设备的最大输入频率为100khz，最大计数范围为0 ~ 9.999.999(可编程)，最大处理时间为5.5毫秒。背板电源电流为1安培，功耗范围为2瓦~ 13瓦。为了进行诊断，该模块将诊断信息以字的形式发送给PLC处理器，这些字在配置块中可供程序员使用。该模块应该在0到60摄氏度(32到140华氏度)的温度下运行。

1771-CFM

1771-CFM 流量计模块

Description: The 1771-CFM module is a configurable type of flow meter module. It is manufactured by Allen-Bradley/Rockwell Automation as part of the PLC 5 series. The 1771-CFM configurable flow meter module supports 4 digital I/O which are digital outputs that operate at 5 to 40 Volts DC voltage. This flow meter module uses magnetic pickups which are Bently 3300 proximity pickups. The 1771-CFM configurable flow meter module only needs 1 slot in a chassis for installation and it is protected from corrosive chemicals by a conformal coating.

The Allen-Bradley 1771-CFM is a configurable flowmeter module. It is used in automated systems for the fast and accurate calculation of the flow after receiving the signal from the flow measuring field devices. It is used for shaft speed calculation too. The 1771-CFM module is the Allen-Bradley 1771 series module that makes the interface between PLCs and turbine flowmeters, magnetic pickups, or single-channel shaft encoders. It can be also used to calculate the flow signal delivered from any TTL pulse source. The Allen-Bradley 1771-CFM is used in various industries like the power generation, oil, gas, automotive, food and beverage, and pipeline industries. Operators can use it for almost any application with flow or turbine metering. By installing this module into their PLC-5 systems, users will simplify the programming and conserve memory of their PLCs. The 1771-CFM module is used as a direct replacement for 1771-QRC and 1771-QRD modules without the need for any changes to the ladder logic.

This configurable flowmeter module has four input channels and it can control up to four outputs based on the values received from the input channels. Users can select four modes of operation on this device: the non-resettable totalizer mode, totalizer mode, high-resolution frequency mode (channels 0/1 or channels 2/3), and direction sensor mode (channels 0/1 or channels 2/3). The maximum input frequency of the device is 100 kHz, the maximum count value range is 0 to 9.999.999 (programmable), and the maximum processing time is 5.5 milliseconds. The backplane power current is 1 Amp. The power dissipation ranges from 2 to 13 Watts. For diagnostic purposes, this module sends diagnostic information to the PLC processor in words that is available to programmers in a configuration block. The module should be operated at 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) temperatures.