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ntool-biz/nmodbus/protocol/packet.go

34 lines
465 B
Go

1 year ago
package protocol
import (
"git.noahlan.cn/noahlan/nnet/packet"
)
type (
Packet interface {
packet.IPacket
Copy() Packet
Modbus
SetBody(data []byte)
SetError(err *MError)
}
Modbus interface {
GetFunction() uint8
GetAddress() uint8
}
ModbusHeader struct {
Address uint8
Function uint8
}
)
func GetError(pkg Packet) (err MError) {
function := pkg.GetFunction()
if (function & 0x80) != 0 {
err = MError(pkg.GetBody()[0])
}
return
}