书籍：Matlab实用教程
工具：Matlab2021a
电脑信息：Intel® Xeon® CPU E5-2603 v3 @ 1.60GHz
系统类型：64位操作系统，基于X64的处理器 windows10 专业版
第7章 simulink仿真环境
7.7 用MATLAB命令创建和运行simulink模型
7.7.1 用MATLAB命令创建simulink模型
1、simulink模型与文件
>>new_system('Ex0711model')>>open_system('Ex0711model')>>new_system('Ex0711model')>>open_system('Ex0711model')>>save_system('Ex0711model','Ex0711')>>close_system('Ex0711model',1)警告:There is no system named'Ex0711model'to close.You can disablethiswarning byusing0as the second argument in the close_system command.>位置：close_system>>close_system('Ex0711',1)关掉模块。
2、添加模块和信号线
>>open_system('Ex0711')>>add_block('built-in/Step','Ex0711/Step','position',[20,100,40,120])>>add_block('built-in/Sum','Ex0711/Sum','position',[60,100,80,120])>>add_block('built-in/Transfer Fcn','Ex0711/Fcn1','position',[120,90,200,130])There is no block named'built-in/Transfer Fcn'>>add_block('built-in/Scope','Ex0711/Scope','position',[240,90,260,120])>>add_line('Ex0711','Step/1','Sum/1')>>add_line('Ex0711','Step/1','Sum/2')>>add_line('Ex0711','Sum/3','Scope/1')Invalid Simulink object name:Sum/3.
找不到Fcn模块，Sum也链接不到scope
3、设置模型和模块属性
>>h=gcs h='Ex0711'>>set_param('Ex0711','StopTime','15')>>set_param('Ex0711/Step','time','0')>>set_param('Ex0711/Sum','Inputs','+-')4、删除模块额信号线
delete_block(‘Ex0711/Scope’)
delete_line()
7.7.2 用MATLAB命令运行simulink模块
>>y=sim('Ex0711',[0,15])警告:'Input Port 1'of'Ex0711/Scope'isnotconnected.警告:'Output Port 1'of'Ex0711/Sum'isnotconnected.警告:Source'Ex0711/Step'specifies that its sampletime(-1)is back-inherited.You should explicitly specify the sample time of sources.You can disablethisdiagnostic by setting the 'Source block specifies-1sample time' diagnostic to 'none'in the Sample Time group on the Diagnostics pane of the Configuration Parameters dialog box.y=Simulink.SimulationOutput:tout:[52x1double]SimulationMetadata:[1x1 Simulink.SimulationMetadata]ErrorMessage:[0x0char]
