C:\TwinCAT\3.1\Boot\Plc\目录下的文件
备注：这里的xxx指的是PLC程序的端口851,852,853,854
Port_xxx.app
Binary file of the PLC project
PLC项目的二进制二进制文件，激活配置，更新Boot文件，PLC登录（更新PLCboot文件）的时候更新
Port_xxx.autostart
Empty file that activates the Autostart option
激活“自动启动”选项的空文件
Port_xxx.cid
File containing the Compileinfo_IDs
包含编译ID信息的文件
Port_xxx.crc
File containing the checksum of the PLC project
包含PLC项目校验和的文件
Port_xxx.occ
Symbolics of the PLC project
PLC项目的变量信息
The file contains the changes of the symbolics of the PLC project for an online change.
If the Symbolic Mapping option is not activated, this file also contains the changes of the mapping configuration for an activate/update boot project.
该文件包含在线更改的PLC项目变量的更改。
如果“变量映射”选项未激活，则此文件还包含激活/更新启动项目的映射配置更改。
On activating the configuration the occ file is reset in both directories.
在激活配置时，occ文件会在两个目录中重置。
Port_xxx.oce
The file contains the changes of the event classes at the time of an OnlineChange, which are used in a PLC project.
该文件包含在PLC项目中使用的OnlineChange时事件类的更改。
Port_xxx.ocm
Description file of the mapping configuration
映射配置的描述文件
If the Symbolic Mapping option is activated, this file contains the changes of the mapping configuration of the PLC project for an activate/update boot project.
如果“变量映射”选项已激活，则此文件包含激活/更新启动项目的PLC项目的映射配置更改。
On activating the configuration the ocm file is reset in both directories.
激活配置后，两个目录中的ocm文件都会重置。
Port_xxx_boot.tizip
包含编译和登录信息的文件
Archive folder containing the COMPILEINFO file of the boot project
The COMPILEINFO file contains the compilation information and the login information of the PLC project.
Port_xxx_act.tizip
Archive folder containing the COMPILEINFO file of the currently running PLC project
当前运行的PLC项目的编译和登录信息文件
Port_xxx.bootdata
掉电保持参数文件
Boot file that saves the persistent data
Once the TwinCAT system has started and the PLC has been loaded, the file extension .bootdata is renamed .bootdata-old.
Port_xxx.bootdata-old
掉电保持参数备份文件
Backup file for the persistent data
The file is deleted once the new boot file has been completely written.
PLC_Name.tpzip
Archive folder of the PLC project
PLC项目的存档文件夹
The scope of the content is configurable in the project properties.
内容的范围可以在项目属性中进行配置。
PLC_Name.tmc
TC3模块描述文件
TC3 module description file
PLC_Name.tpy
TC2 PLC描述文件
TC2 PLC description file