FBM204 直流模拟输入通道 执行模拟I/O应用程序

☆型号：FBM204 直流模拟输入通道 执行模拟I/O应用程序

【产品详情】

概述

FBM204, 0至20 mA输入/输出包含4个20 mA直流模拟输入通道

和4个20ma直流模拟输出通道。

每个输入通道接受模拟传感器输入，如4至20 mA发射机，

或自供电20ma电源。每个输出通道驱动一个外部负载和

产生0至20 mA输出。输入/输出是电隔离的

渠道和地面。

FBM204执行电输入接口所需的信号转换

从现场传感器输出信号到可选的冗余现场总线。的FBM204

执行模拟I/O应用程序，它提供以下功能

可配置选项:转换时间，故障安全配置(保持/回退)，和

模拟输出故障安全回退数据(以每个通道为基础)。现场总线模块

(FBM)可以执行分布式PIDA (DPIDA)应用程序来

提供一个快速的控制回路在其中运行。

FBM204与标准hart信号在电气上兼容。

特性

•4个20ma直流模拟输入通道

•4个20ma直流模拟输出通道

•每个输入和输出通道是电隔离的

•坚固耐用的设计适用于G3(恶劣)环境的外壳

•执行模拟I/O应用程序，提供转换时间和

可配置的变化率限制选项

•通过每个通道的sigma-delta数据转换实现高精度

•终端组件(TAs)用于本地或远程连接现场布线到

紧凑FBM204

•TA与输出旁路站一起使用，在维护期间保持输出

操作

•用于每个通道内部和/或外部环路的3层终端组件

驱动的发射器

•支持DPIDA控制块

精度高

为了提高精度，该模块在每个模块上集成了Sigma-Delta数据转换

通道基础，它提供新的模拟输入读数每25毫秒，和一个

可配置集成周期，以消除任何过程和/或噪音和电源线

频率。在每个时间段内，FBM将每个模拟输入转换为数字值，

在一段时间内对这些值求平均值，并将平均值提供给

控制器

☆型号：FBM204 直流模拟输入通道 执行模拟I/O应用程序

【英文介绍】

Overview

The FBM204, 0 to 20 mA Input/Output contains four 20 mA dc analog input channels

and four 20 mA dc analog output channels.

Each input channel accepts an analog sensor input such as a 4 to 20 mA transmitter,

or a self-powered 20 mA source. Each output channel drives an external load and

produces a 0 to 20 mA output. The inputs/outputs are galvanically isolated from other

channels and ground.

The FBM204 performs the signal conversion required to interface the electrical input/

output signals from the field sensors to the optionally redundant fieldbus. The FBM204

executes the Analog I/O application program, which provides the following

configurable options: Conversion Time, Fail-Safe Configuration (Hold/Fallback), and

Analog Output Fail-Safe Fallback Data (on a per channel basis). The Fieldbus Module

(FBM) may instead execute a distributed PIDA (DPIDA) application program to

provide a fast control loop running in it.

The FBM204 is electrically compatible with standard HARTsignals.

Features

• Four 20 mA dc analog input channels

• Four 20 mA dc analog output channels

• Each input and output channel is galvanically isolated

• Rugged design suitable for enclosure in Class G3 (harsh) environments

• Execution of an analog I/O application program that provides conversion time and

configurable options for Rate of Change Limits

• High accuracy achieved by sigma-delta data conversions for each channel

• Termination Assemblies (TAs) for locally or remotely connecting field wiring to the

Compact FBM204

• TA for use with Output Bypass Station to maintain outputs during maintenance

operations

• 3-tier termination assembly for per channel internally and/or externally loop

powered transmitters

• Support for DPIDA control blocks

High Accuracy

For high accuracy, the module incorporates Sigma-Delta data conversion on a per

channel basis, which provides new analog input readings every 25 ms, and a

configurable integration period to remove any process and/or noise and power line

frequencies. Each time period, the FBM converts each analog input to a digital value,

averages these values over the time period and provides the averaged value to the

controller

☆型号：FBM204 直流模拟输入通道 执行模拟I/O应用程序

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