自己写的用于modbusrtu的通讯，可以连接各类变频器温控仪等，而且是完整的工程文件，可以修改做他用-himself wrote for modbusrtu communications, can be connected to various types of converter temperature control instrument, but it is a complete engineering documents ca

自己写的用于modbusrtu的通讯，可以连接各类变频器温控仪等，而且是完整的工程文件，可以修改做他用-himself wrote for modbusrtu communications, can be connected to various types of converter temperature control instrument, but it is a complete engineering documents ca