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C# SCADA

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![image](https://user-images.githubusercontent.com/22708157/140603801-d0d3f110-1b8f-498f-b7b6-e65e7af73bf6.png)

@GavinYellow 在DataService的Condition.cs中,LevelAlarm类的CheckAlarm方法低限告警代码块第705行,此处deadBand判断应该为小于符号 ![image](https://user-images.githubusercontent.com/22708157/139186504-1f281141-056d-43c5-996e-393acd7a8083.png) `else if (_deadBand > 0 && ActiveSubCondition == condition.SubAlarmType && value < condition.Threshold + _deadBand)`

现在好多新出的控制器都支持OPCUA,后面会考虑把OPCUA加进去吗?

我想问下这个项目有关于工艺配方的设置吗?这也是属于变量的一部分,有涉及到吗,一般是怎么处理的?谢谢

I'm getting the following exception when I run `BatchCoreTest.exe`: ![image](https://user-images.githubusercontent.com/21169606/79876548-cfda0c80-8408-11ea-90dc-9ca200815d20.png) `CoreTest.exe` and `TagConfig.exe` don't run. I'm trying to use with MySQL. I've imported the mysql file into a new database...

你好,像组态软件这种数据更新比较快,历史数据库,如果存储几年的数据,数据量太大,这种问题一般是怎么处理的。谢谢

remove line as PLCGroup.cs method "UpdatePDUArea()" //_start.Bit = 0;

Hi Do you have document to show how to use mySQL and store data for say 6 months or so? Ajay

通常scada的实时数据和历史数据是分开的,两个层面,如果ifix,组态王,不知项目有没有实时数据或是用缓存实现类实时数据库的功能,sql server用来放历史数据