YOKOGAWA横河YS1700-020/A31可编程指示控制器是一款高性能的控制器，它结合了横河公司的专有技术，具有用户友好性、可扩展性以及高可靠性等特点。

一、产品概述

YS1700-020/A31可编程指示控制器是横河公司推出的一款先进控制器，它适用于多种应用场合。通过运行用户程序，该控制器可以实现定制化的控制需求。同时，它还具有丰富的功能和强大的性能，可以满足各种复杂的控制要求。

二、产品特点

小型轻便：该控制器比以往系列更加小型轻便，节约安装空间，并符合国际安全标准（CE标志及FM防爆认证）。

全点显示：采用半反射型彩色LCD，即使在早晨或傍晚的日光直射下，也可确保显示屏具有良好的可视性。

模块编程：除了与旧机型兼容的文本编程方式外，YS1700还提供了基于GUI的编程方法，即模块编程。这使得用户能够更加方便地进行程序开发和调试。

超大编程容量：文本编程容量为1000行，模块编程容量为400个功能模块，满足各种复杂的控制需求。

强大的控制与运算功能：采用了四字节浮点运算（IEEE754格式），可进行实量运算、压力补偿等模块。同时，它还提供了多种控制模式，如PID、PD、采样保持PI和批处理PID等，使得用户能够根据实际需要进行灵活选择。

功能选择模式：无需编程即可从常用功能（单回路、级联或选择器控制）中选择控制类型。通过参数设定可以选择分配到数字和模拟输入/输出（DI、DO、AI和AO）的功能。

扩展I/O：带扩展I/O的基本型具有多个模拟输入点、模拟输出点以及数字输入/输出点，满足各种输入输出需求。

控制输出备份功能：配备双CPU（一个用于控制，一个用于显示），即使其中一个CPU发生故障，也可进行显示和手动操作。当包括两个CPU的数字回路发生故障时，能够手动调节控制器输出。

非易失性存储器：存储备份时不使用电池或电容，无需定期维护。

AC/DC两用电源：操作范围广，确保了电压波动时的稳定性。可通过AC（100V）或DC（24V）电源供电。此外，DC电源可无极性受电。

三、应用领域

YS1700-020/A31可编程指示控制器广泛应用于工业自动化、过程控制、环境监测等领域。它可以与各种传感器、执行器等设备配合使用，实现对温度、压力、流量等参数的精确控制和监测。

The YOKOGAWA Yokogawa YS1700-020/A31 programmable indicator controller is a high-performance controller that combines Yokogawa's proprietary technology and features user friendliness, scalability, and high reliability.

1、 Product Overview

The YS1700-020/A31 programmable indicator controller is an advanced controller launched by Yokogawa Corporation, which is suitable for various application scenarios. By running user programs, the controller can achieve customized control requirements. At the same time, it also has rich functions and powerful performance, which can meet various complex control requirements.

2、 Product Features

Small and Lightweight: This controller is smaller and lighter than previous series, saving installation space and complying with international safety standards (CE mark and FM explosion-proof certification).

Full point display: Using a semi reflective color LCD, even in direct sunlight in the morning or evening, the display screen can ensure good visibility.

Module programming: In addition to the text programming method compatible with older models, YS1700 also provides a GUI based programming method, namely module programming. This enables users to develop and debug programs more conveniently.

Large programming capacity: The text programming capacity is 1000 lines, and the module programming capacity is 400 functional modules, meeting various complex control requirements.

Powerful control and operation functions: Adopting four byte floating-point operation (IEEE754 format), it can perform modules such as real quantity operation and pressure compensation. At the same time, it also provides multiple control modes such as PID, PD, sample and hold PI, and batch PID, allowing users to flexibly choose according to their actual needs.

Function selection mode: Control type can be selected from commonly used functions (single loop, cascade, or selector control) without programming. The functions assigned to digital and analog inputs/outputs (DI, DO, AI, and AO) can be selected through parameter settings.

Expansion I/O: The basic model with expansion I/O has multiple analog input points, analog output points, and digital input/output points to meet various input/output requirements.

Control output backup function: Equipped with dual CPUs (one for control and one for display), even if one CPU fails, display and manual operation can be performed. When the digital circuit including two CPUs fails, the controller output can be manually adjusted.

Non volatile memory: does not use batteries or capacitors when storing backups, and does not require regular maintenance.

AC/DC dual-purpose power supply: With a wide operating range, it ensures stability during voltage fluctuations. It can be powered by AC (100V) or DC (24V) power supply. In addition, DC power sources can receive electricity without polarity.

3、 Application Fields

YS1700-020/A31 programmable indicator controller is widely used in industrial automation, process control, environmental monitoring and other fields. It can be used in conjunction with various sensors, actuators, and other devices to achieve precise control and monitoring of parameters such as temperature, pressure, and flow rate.

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