描述
ABB DP840是一款用于S800 I/O系统的脉冲计数器模块，产品编号为3BSE028926R1。以下是其产品详情：
基本信息
品牌：ABB
原产国：瑞典
产品类型：脉冲计数器模块
尺寸：宽45mm，深102mm，高119mm
重量：约0.15kg
技术参数
输入通道：8通道
信号输入：支持Namur、12V和24V传感器信号电平
测量功能：可进行脉冲计数或频率（速度）测量，脉冲计数通过16位计数器累积，频率测量范围为0.5Hz-20kHz
隔离情况：组间隔离，与地隔离
输入阻抗：2.5kΩ（DI输入）
额定绝缘电压：50V
介电测试电压：500V AC
功耗：4W
电流消耗：+5V模块总线为115mA，+24V外部电流消耗根据不同信号电平有所不同，如Namur为56+0.5 x外部负载（mA）
最大现场电缆长度：200米
功能特点
双通道设计：每个通道包含用于位置/长度和速度/频率测量的计数器和寄存器，可同时进行脉冲计数和频率测量。
高精度测量：脉冲计数通过双向29位计数器累积，频率测量范围为0.25Hz-1.5MHz，相对误差为320/（测量时间x in ms）ppm，绝对误差（包括温度漂移）为（（320/（测量时间x in ms）+100）ppm。
兼容性
可搭配终端单元：可与TU810、TU812、TU814、TU830、TU833等模块终端单元配合使用。
ABB DP840 is a pulse counter module for S800 I/O system,product number 3BSE028926R1.The following are product details:
Basic Information
Brand:ABB
Country of Origin:Sweden
Product Type:Pulse Counter Module
Dimensions:Width 45mm,Depth 102mm,Height 119mm
Weight:Approximately 0.15kg
Technical Parameters
Input Channels:8
Signal Input:Supports Namur,12V,and 24V sensor signal levels
Measurement Function:Can perform pulse counting or frequency(speed)measurement.Pulse counts are accumulated via a 16-bit counter.Frequency measurement range is 0.5Hz-20kHz.
Isolation:Group isolation,isolated from ground.
Input Impedance:2.5kΩ(DI input)
Rated Insulation Voltage:50V
Dielectric Test Voltage:500V AC
Power Consumption:4W
Current Draw:115mA for the+5V module bus.+24V external current draw varies depending on the signal level,e.g.,56+0.5 x external load(mA)for Namur.
Maximum Field Cable Length:200m Meters
Features
Dual-channel design:Each channel includes counters and registers for position/length and velocity/frequency measurements,enabling simultaneous pulse counting and frequency measurement.
High-precision measurement:Pulse counts are accumulated via a bidirectional 29-bit counter.The frequency measurement range is 0.25Hz-1.5MHz,with a relative error of 320/(measurement time x in ms)ppm and an absolute error(including temperature drift)of((320/(measurement time x in ms)+100))ppm.
Compatibility
Compatible with terminal units:Compatible with module terminal units such as the TU810,TU812,TU814,TU830,and TU833.
ABB Model: GBU72 3BHE055094R0002 Model: 3BHE055094R0002 GBU72 Model: GBU72 Model: 3BHE055094R0002 Model: 3BHE031197R0001 Model: 3BHB030310R0001 Model: 73BHE055094R0002 GBU72 Model: 73BHE055094R0002 Model: GBU72 Model: ABB PCS6000 PRODUCT FAMLIY ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101
