PCCC:Programmable Controller Communication Commands. AB PLC常用指令 根据http://www.iatips.com/pccc_tips.html,SLC5/MicroLogix常用指令如下: The best commands for SLC5/MicroLogix controllers are: Protected Typed Logical Read with 3-Address Fields (Cmd=0x0F, SubFnc=
首先是ef的多数据库操作实现事务的方法 public int AddDifferenceDB(userinfo1 user1, userinfo user) { ; using (var test2DB = new test2Entities1()) { using (var test1DB = new test1Entities1()) { using (TransactionScope trans = new TransactionScope()) { try { test2DB.Set<u