1771-NC6隔离模拟模块

1771-NC6隔离模拟模块

1771-NC6隔离模拟模块

产品详情资料：

ISA、PCI104等总线，支持多种语言平台：与LabView无缝连接，支持多种调用方式；在MatLab中嵌入使用，直接驱动板卡进行信号采集，无需额外数据转换；VC语言提供全功能测试平台、示波器软件；在VB、LabWindows、C++Builder、Delphi等语言下也均能完成采集、显示、连续大容量存盘、数据回放、A/D精度测试等。开放式设计，工程级源代码公开。

1、主机 

 　　主机部分包括处理器（CPU）、程序存储器和用户程序及数据存储器。CPU是PLC的核心，它用以运行用户程序、监控输入/输出接口状态、作出逻辑判断和进行数据处理，即读取输入变量、完成用户指令规定的操作，将结果送到输出端，并响应外部设备（如电脑、打印机等）的请求以及进行内部判断等。PLC的内部存储器有两类，一类是程序存储器，主要存放和监控程序及对用户程序作编译处理的程序，程序已由厂家固定，用户不能更改；另一类是用户程序及数据存储器，主要存放用户编制的应用程序及暂存数据和中间结果。

 2、输入/输出（I/O）接口 

 　　I/O接口是PLC与输入/输出设备连接的部件。输入接口接受输入设备（如按钮、传感器、触点、行程开关等）的控制。输出接口是将主机经处理后的结果通过功放电路去驱动输出设备（如器、电磁阀、指示灯等）。I/O接口一般采用光电耦合电路，以电磁，从而了可靠性。I/O点数即输入/输出端子数是PLC的一项主要技术指标，通常小型机有几十个点，中型机有几百个点，大型机将超过千点。

产品英文详情料:

ISA, PCI104 and other buses, supporting multiple language platforms: seamlessly connected to LabView, supporting multiple call methods; Embedded in MatLab, directly driving the board for signal acquisition without the need for additional data conversion; VC language provides a fully functional testing platform and oscilloscope software; It can also complete acquisition, display, continuous large capacity storage, data playback, A/D accuracy testing, etc. in languages such as VB, LabWindows, C++Builder, Delphi, etc. Open design, engineering level source code disclosure.

1. Host

The host part includes a processor (CPU), program memory, and user program and data memory. The CPU is the core of PLC, which is used to run user programs, monitor the status of input/output interfaces, make logical judgments, and perform data processing. It reads input variables, completes various operations specified by user instructions, sends the results to the output end, responds to requests from external devices (such as computers, printers, etc.), and makes various internal judgments. There are two types of internal memory in PLC. One type is program memory, which mainly stores and monitors programs and compiles user programs. The programs are fixed by the manufacturer and cannot be changed by users; The other type is user programs and data storage, which mainly store user generated application programs, various temporary data, and intermediate results.

2. Input/Output (I/O) interface

The I/O interface is a component that connects the PLC to input/output devices. The input interface accepts control from input devices such as buttons, sensors, contacts, travel switches, etc. The output interface is to drive output devices (such as devices, solenoid valves, indicator lights, etc.) through the power amplifier circuit based on the processed results of the host. I/O interfaces generally use optoelectronic coupling circuits for electromagnetic purposes, thereby enhancing reliability. The number of I/O points, also known as the number of input/output terminals, is a major technical indicator of PLC. Typically, small machines have dozens of points, medium-sized machines have hundreds of points, and large machines will exceed a thousand points.

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