OB,FC,FB,DB程序的加密：
一，先要把需加密的块生成源文件
打开任意一个程序编辑页面


http://bbs.qichengplc.com/data/attachment/forum/201703/06/155811fzw2jl5doyyyj02j.png 
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155811e0hzjumxs0whk9jg.png 

设置完以后系统会自动生成各个块的源文件
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155811airj42n4i1dzjnu2.png 

如果有的块没有自动生成源文件，我们可以使用下面的方法手动生成源文件
方法一：
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155811kdtejvpb6vwt6bjt.png 
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155812v664c3g3cq6ll0lq.png 

方法二：
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155812yirrin8brhhmqr4n.png 
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155812zj21z31qb8seq1xy.png 
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155812ujax3yvarztqy9ma.png 
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155812z6agab1dttcppgxz.png 

二，给需要加密块进行加密
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155813k96mwg2w7y51zggg.png 
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155813yajp4rje3mmnjx3n.png 

http://bbs.qichengplc.com/data/attachment/forum/201703/06/155813y4orr3s44s3o6r14.png 

特别提示，给OB块加密的时候有些不同，见截图

http://bbs.qichengplc.com/data/attachment/forum/201703/06/155813lopn2rrnl2p8i2xb.png 

加密完成，下面我们打开加密的OB1测试一下
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155813wixs45xlz002xx52.png 

http://bbs.qichengplc.com/data/attachment/forum/201703/06/155813jyvzlxv9xvzv8yvx.png 
加密后我们就可以把加了密的源文件删除（自己的程序里面要保留），或者导出源文件，导出后在将程序里的源文件删除，下次需要打开加密的块时在导入源文件进行解密。

导出源文件的方法：
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155814c1iguvh7z2xz7vix.png 

http://bbs.qichengplc.com/data/attachment/forum/201703/06/155814jz4zx6fegge0m6le.png 

导入源文件的方法：

http://bbs.qichengplc.com/data/attachment/forum/201703/06/155814so90mji2jo1h3eho.png 

http://bbs.qichengplc.com/data/attachment/forum/201703/06/155814vtoead1jqkdtdtzz.png 

三，解密方法：
http://bbs.qichengplc.com/data/attachment/forum/201703/06/155814ij6n0pc0mp73r7m6.png 
然后保存,编译.