Golang使用Apache PLC4X连接modbus的示例代码

package main
import (
	"fmt"
	"github.com/apache/plc4x/plc4go/pkg/plc4go"
	"github.com/apache/plc4x/plc4go/pkg/plc4go/drivers"
	"github.com/apache/plc4x/plc4go/pkg/plc4go/transports"
)
//目前 没看到有opcua驱动
func main()  {
	// Create a new instance of the PlcDriverManager
	driverManager := plc4go.NewPlcDriverManager()
	// Register the Transports
	transports.RegisterTcpTransport(driverManager)
	transports.RegisterUdpTransport(driverManager)
	// Register the Drivers
	drivers.RegisterKnxDriver(driverManager)
	drivers.RegisterModbusDriver(driverManager)
	// Get a connection to a remote PLC
	connectionRequestChanel := driverManager.GetConnection("modbus://192.168.23.30?unit-identifier=1")
	// Wait for the driver to connect (or not)
	connectionResult := <-connectionRequestChanel
	// Check if something went wrong
	if connectionResult.Err != nil {
		fmt.Printf("Error connecting to PLC: %s", connectionResult.Err.Error())
		return
	}
	// If all was ok, get the connection instance
	connection := connectionResult.Connection
	// Make sure the connection is closed at the end
	defer connection.Close()
}