描述
GE IC697CPM790-GD是通用电气（GE）旗下一款高性能可编程逻辑控制器（PLC）CPU，专为工业自动化、过程控制及安全相关应用设计。以下是其核心功能、技术参数及应用场景的综合分析：
一、产品概述
IC697CPM790-GD属于GE 90-70系列PLC核心模块，采用单槽宽设计，支持三重模块化冗余（TMR）技术，适用于紧急停机（ESD）、火灾、气体监测等安全关键场景。其核心优势包括高可靠性、高速运算及灵活扩展性。
二、技术参数
处理器与内存
-微处理器：Intel 80486DX2，主频64MHz，支持32位浮点运算
-内存：1MB电池后备存储器（512KB可用于梯形图程序），支持固件在线更新。
I/O能力
-单工模式：
-离散点：12,000点（混合输入输出），或2048点投票式输入/输出
-模拟量：8,000点（单工模式，1024点投票模拟输入）
-冗余模式：需配合三重机架及I/O总线实现高可用性。
通信接口
-标准接口：15针Sub-D连接器，支持RS485协议
-扩展接口：通过转换器（如IC690ACC900/901）兼容RS-232/RS-422通信。
三、核心功能特性
三重模块化冗余（TMR）
-由三个独立机架组成冗余系统，每个机架包含1个CPU、三重I/O总线及传感器/执行器，确保无单点故障导致停机。
安全与诊断
-密码保护：支持内存保护密钥或软件密码锁定配置数据
-状态指示：4个LED显示CPU运行状态
-自检功能：上电时验证机架配置，实时报告异常。
编程与开发
-支持Windows/MS-DOS编程环境
-需配合独立C程序实现TMR自动测试及运行例程。
IC698PSA100E
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GE IC697CPM790-GD is a high-performance programmable logic controller(PLC)CPU from General Electric(GE),designed for industrial automation,process control and safety-related applications.The following is a comprehensive analysis of its core functions,technical parameters and application scenarios:
I.Product Overview
IC697CPM790-GD belongs to the GE 90-70 series PLC core module,adopts a single-slot width design,supports triple modular redundancy(TMR)technology,and is suitable for safety-critical scenarios such as emergency shutdown(ESD),fire,and gas monitoring.Its core advantages include high reliability,high-speed computing and flexible scalability.
II.Technical Parameters
Processor and Memory
-Microprocessor:Intel 80486DX2,main frequency 64MHz,support 32-bit floating-point operations
-Memory:1MB battery-backed memory(512KB can be used for ladder diagram programs),support firmware online updates.
I/O Capacity
-Simplex Mode:
-Discrete Points:12,000 points(mixed input and output),or 2048 points voting input/output
-Analog:8,000 points(simplex mode,1024 points voting analog input)
-Redundant Mode:requires triple rack and I/O bus to achieve high availability.
Communication Interface
-Standard Interface:15-pin Sub-D connector,supports RS485 protocol
-Expansion Interface:compatible with RS-232/RS-422 communication through converters(such as IC690ACC900/901).
3.Core Functional Features
Triple Modular Redundancy(TMR)
-A redundant system consisting of three independent racks,each rack contains 1 CPU,triple I/O bus and sensors/actuators to ensure that there is no single point of failure causing downtime.
Security and diagnostics
-Password protection:Supports memory protection key or software password to lock configuration data
-Status indication:4 LEDs display CPU operating status
-Self-test function:Verifies rack configuration at power-on and reports abnormalities in real time.
Programming and development
-Supports Windows/MS-DOS programming environment
-Need to cooperate with independent C program to realize TMR automatic test and run routines.
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