VB编写的MODBUS通讯实现源码

代码说明：

VB编写的MODBUS通讯实现源码, 功能: Public Sub tran_modbus_order(ByVal byt_slv_id As Byte, ByVal byt_func As Byte, ByVal addr As Long, byt_data() As Byte) Function CRC16(data() As Byte) As String