RF522 3BSE000743R1 ABB 数字信号模块

RF522 3BSE000743R1 ABB 数字信号模块

RF522 3BSE000743R1 ABB 数字信号模块现场输入信号的不同，可将输入模块分为开关量输入模块和模拟量输入模块。 开关量输入模块的作用是把各种开关信号变成CPU所需的TTL标准信号。按输入端电源类型，又可将其为直流输入模块和交流输入模块。输入信号经分压、限流、滤波后再通过光电耦合转换成TTL（5V）标准信号。

RF522 3BSE000743R1 ABB 数字信号模块 模拟量输入模块的作用是把现场连续变化的模拟量信号如温度、流量、电流、电压等转换成CPU能够处理的若干位数字信号。模拟量输入电路一般由运放变换、模转换（A/D）、光电隔离等组成。 PLC输入、输出模块的种类：数字输入DI,数字输出DO,模拟量输入AI，模拟量输出AO。 数字的输入输出一般都是24V的. 模拟量的2类4种量,2类分别是电压型和电流型.电压型有0-10V和-10到10V.电流型主要有4-20MA,0-20MA.然后模块再通过A/D转换,把模拟量转换成+32767~-32768之间的数,然后再实行控制。 

RF522 3BSE000743R1 ABB 数字信号模块的作用是把各种过程i/o信号进行转换.把输入的各种信号转换成数字量,便于plc识别,处理和分析.把输出转换成模拟量给各种调节机构去执行,或将输出转换成2位式do量,去控制一些设备如启动停止、接通和断开等

开关量输入模块就是外部控制信号或现场检测信号给PLC CPU的处理模块，外部信号一般是按钮、接近开关、行程开关等。

输出模块是PLC根据输入模块采入的信号和内部逻辑编程进行逻辑处理，处理后的结果过，开关量输出便由输出模块输出高低电平信号，驱动外部中间继电器、接触器、指示灯、电磁阀等元件，进而使外部设备进行相应的动作

这个术语用于描述AC800F控制器(现场控制器)和机架式控制器。一个过程站可以设计成冗余配

置和非冗余配置。

AC800F :

这个术语用于描述AC800F现场控制器这种类型的过程站。一个冗余的过程站包含了2个

AC800F控制器。

机架式过程站:

这个术语用于描述机架式类型的过程站。一个冗余的过程站包含2个机架式CPU。

这个术语用于描述一个单独的，非冗余的过程站。

RF522 3BSE000743R1 ABB 数字信号模块

RF522 3BSE000743R1 ABB digital signal module field input signal is different, the input module can be divided into switching input module and analog input module. The function of the switching input module is to convert various switching signals into TTL standard signals required by the CPU. According to the input power supply type, it can be divided into DC input module and AC input module. The input signal is converted into TTL (5V) standard signal by photoelectric coupling after voltage division, current limiting and filtering.

RF522 3BSE000743R1 ABB digital signal module Analog input module is used to convert the field continuously changing analog signals such as temperature, flow, current, voltage, etc. into a number of digital signals that the CPU can process. The analog input circuit is generally composed of op amp conversion, mode conversion (A/D), photoelectric isolation, etc. Types of PLC input and output modules: digital input DI, digital output DO, analog input AI, analog output AO. Digital input and output are generally 24V. There are 4 kinds of analog quantities in 2 categories, and the 2 categories are voltage type and current type respectively. Voltage type has 0-10V and -10 to 10V. Current type mainly has 4-20MA,0-20MA. Then the module converts the analog quantity into A number between +32767 and -32768 through A/D conversion, and then implements the control.

The RF522 3BSE000743R1 ABB digital signal module is used to convert various process i/o signals. The input signals are converted into digital quantities, which are easy for plc to identify, process and analyze. The output is converted into analog to various regulating mechanisms for execution, or the output is converted into a 2-bit do quantity to control some devices such as start, stop, on and off

The switching input module is the processing module of the external control signal or field detection signal to the PLC CPU, and the external signal is generally the button, the proximity switch, the travel switch, etc.

The output module is the PLC according to the input module input signal and internal logic programming logic processing, after processing the result, the switching output will be output by the output module high and low level signal, drive the external intermediate relay, contactor, indicator light, solenoid valve and other components, and then make the external equipment to carry out the corresponding action

The term is used to describe AC800F controllers (field controllers) and rack-mounted controllers. A process station can be designed to be redundant

Set and non-redundant configuration.

AC800F :

This term is used to describe a process station of this type, the AC800F field controller. A redundant process station consists of two

AC800F controller.

Rack-type process station:

The term is used to describe a rack-type process station. A redundant process station contains 2 rack-mounted cpus.

The term is used to describe a single, non-redundant process station.

RF522 3BSE000743R1 ABB 数字信号模块