武汉润天泽科技有限公司

·循环程序处理过程可以被某些事件中断。
·在循环程序处理过程中，CPU 并不直接访问I/O模块中的输入地址区和输出地址区，而是访问CPU 内部的输入/输

出过程映像区（在CPU的系统存储区）
5编程工具使用STEP7软件对S7-300进行编程，目前S7-300最新的编程软件版本为STEP7 V5.5 SP2。[1]STEP7包含了

自动化项目从项目的启动、实施到测试以及服务每一个阶段所需的全部功能。
STEP7中的编程语言
1、顺序功能图
2、梯形图
3、语句表
4、功能块图
5、结构文本

6ES7431-1KF00-0AB0
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6ES7431-7QH00-0AB0
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6ES7461-0AA01-0AA0
6ES7901-0BF00-0XA0
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6ES7901-3CB30-0XA0
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6ES7951-0KD00-0AA0
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6ES7960-1AA00-0XA0
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6ES7972-0CA23-0XA0
6ES7972-0CB20-0XA0
6ES7416-2XK02-0AB0
6ES7416-3XL00-0AB0
6ES7417-4HL01-0AB0
6ES5095-8MC01
6ES5095-8MB02
6ES5942-7UB11
6ES5955-3LC42
6ES5955-3LF42
6ES5955-3LC41
6ES5928-3UA12
6ES5928-3UA21
6ES5928-3UB12
6ES5928-3UB21
6ES5943-7UB11
6ES5095-8MA03
6ES5308-3UA12

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5SJ44327CC20

3RS10001CD200FB0
3RS10001CK00
3RS10001CK000FB0
3RS10001CK10
3RS10001CK100FB0
3RS10001CK20
3RS10001CK200FB0
3RS10002CD00
3RS10002CD10
3RS10002CD20
3RS10002CK00
3RS10002CK10
3RS10002CK20
3RS10022CD10
3RS10022CD20
3RS10101CD00
3RS10101CD000FB0
3RS10101CD10
3RS10101CD100FB0
3RS10101CD20
3RS10101CD200FB0
3RS10101CK00
3RS10101CK000FB0
3RS10101CK10
3RS10101CK100FB0
3RS10101CK20
3RS10101CK200FB0
3RS10201DD00
3RS10201DD000FB0
3RS10201DD10
3RS10201DD100FB0
3RS10201DD20
3RS10201DD200FB0
3RS10201DW00
3RS10201DW000FB0
3RS10201DW10
3RS10201DW100FB0