snap7

README

snap7-go

snap7 golang binding

Documentation

Index

• Constants
• Variables
• type DataTime
• type Snap7Client
  • func ConnentTo(address string, rack int, slot int) (Snap7Client, error)
  • func (client *Snap7Client) ABRead(start int, size int) ([]byte, error)
  • func (client *Snap7Client) ABWrite(start int, data []byte) error
  • func (client *Snap7Client) CTRead(start int, amount int) ([]byte, error)
  • func (client *Snap7Client) CTWrite(start int, data []byte) error
  • func (client *Snap7Client) Close()
  • func (client *Snap7Client) DBRead(db_number int, start int, size int) ([]byte, error)
  • func (client *Snap7Client) DBWrite(db_number, start int, data []byte) error
  • func (client *Snap7Client) EBRead(start int, size int) ([]byte, error)
  • func (client *Snap7Client) EBWrite(start int, data []byte) error
  • func (client *Snap7Client) GetPlcDateTime() (DataTime, error)
  • func (client *Snap7Client) MBRead(start int, size int) ([]byte, error)
  • func (client *Snap7Client) MBWrite(start int, data []byte) error
  • func (client *Snap7Client) ReadArea(area int, db_number int, start int, amount int) ([]byte, error)
  • func (client *Snap7Client) SetPlcDateTime(time DataTime) error
  • func (client *Snap7Client) TMRead(start int, amount int) ([]byte, error)
  • func (client *Snap7Client) TMWrite(start int, data []byte) error
  • func (client *Snap7Client) WriteArea(area int, db_number int, start int, data []byte) error

Constants

const (
	S7AreaPE = 0x81
	S7AreaPA = 0x82
	S7AreaMK = 0x83
	S7AreaDB = 0x84
	S7AreaCT = 0x1C
	S7AreaTM = 0x1D
)

Variables

var ErrCliAddressOutOfRange = errors.New("ErrCliAddressOutOfRange")

var ErrCliAlreadyRun = errors.New("ErrCliAlreadyRun")

var ErrCliAlreadyStop = errors.New("ErrCliAlreadyStop")

var ErrCliBufferTooSmall = errors.New("ErrCliBufferTooSmall")

var ErrCliCannotChangeParam = errors.New("ErrCliCannotChangeParam")

var ErrCliCannotCompress = errors.New("ErrCliCannotCompress")

var ErrCliCannotCopyRamToRom = errors.New("ErrCliCannotCopyRamToRom")

var ErrCliCannotStartPLC = errors.New("ErrCliCannotStartPLC")

var ErrCliCannotStopPLC = errors.New("ErrCliCannotStopPLC")

var ErrCliDeleteRefused = errors.New("ErrCliDeleteRefused")

var ErrCliDestroying = errors.New("ErrCliDestroying")

var ErrCliDownloadSequenceFailed = errors.New("ErrCliDownloadSequenceFailed")

var ErrCliFunNotAvailable = errors.New("ErrCliFunNotAvailable")

var ErrCliFunctionRefused = errors.New("ErrCliFunctionRefused")

var ErrCliInsertRefused = errors.New("ErrCliInsertRefused")

var ErrCliInvalidBlockNumber = errors.New("ErrCliInvalidBlockNumber")

var ErrCliInvalidBlockSize = errors.New("ErrCliInvalidBlockSize")

var ErrCliInvalidBlockType = errors.New("ErrCliInvalidBlockType")

var ErrCliInvalidDataSizeRecvd = errors.New("ErrCliInvalidDataSizeRecvd")

var ErrCliInvalidParamNumber = errors.New("ErrCliInvalidParamNumber")

var ErrCliInvalidParams = errors.New("ErrCliInvalidParams")

var ErrCliInvalidPassword = errors.New("ErrCliInvalidPassword")

var ErrCliInvalidPlcAnswer = errors.New("ErrCliInvalidPlcAnswer")

var ErrCliInvalidTransportSize = errors.New("ErrCliInvalidTransportSize")

var ErrCliInvalidValue = errors.New("ErrCliInvalidValue")

var ErrCliInvalidWordLen = errors.New("ErrCliInvalidWordLen")

var ErrCliItemNotAvailable = errors.New("ErrCliItemNotAvailable")

var ErrCliJobPending = errors.New("ErrCliJobPending")

var ErrCliJobTimeout = errors.New("ErrCliJobTimeout")

var ErrCliNeedPassword = errors.New("ErrCliNeedPassword")

var ErrCliNoPasswordToSetOrClear = errors.New("ErrCliNoPasswordToSetOrClear")

var ErrCliPartialDataRead = errors.New("ErrCliPartialDataRead")

var ErrCliPartialDataWritten = errors.New("ErrCliPartialDataWritten")

var ErrCliSizeOverPDU = errors.New("ErrCliSizeOverPDU")

var ErrCliTooManyItems = errors.New("ErrCliTooManyItems")

var ErrCliUploadSequenceFailed = errors.New("ErrCliUploadSequenceFailed")

var ErrCliWriteDataSizeMismatch = errors.New("ErrCliWriteDataSizeMismatch")

var ErrIsoConnect = errors.New("ErrIsoConnect") // Connection error

ISO Errors

var ErrIsoDisconnect = errors.New("ErrIsoDisconnect") // Disconnect error

var ErrIsoInvalidDataSize = errors.New("ErrIsoInvalidDataSize") // Bad Datasize passed to send/recv buffer is invalid

var ErrIsoInvalidPDU = errors.New("ErrIsoInvalidPDU") // Bad format

var ErrIsoInvalidParams = errors.New("ErrIsoInvalidParams") // Invalid TSAP params

var ErrIsoNullPointer = errors.New("ErrIsoNullPointer") // Null passed as pointer

var ErrIsoPduOverflow = errors.New("ErrIsoPduOverflow") // The sum of fragments data exceded maximum packet size

var ErrIsoRecvPacket = errors.New("ErrIsoRecvPacket") // An error occurred during recv

var ErrIsoResvd_1 = errors.New("ErrIsoResvd_1") // Unassigned

var ErrIsoResvd_2 = errors.New("ErrIsoResvd_2") // Unassigned

var ErrIsoResvd_3 = errors.New("ErrIsoResvd_3") // Unassigned

var ErrIsoResvd_4 = errors.New("ErrIsoResvd_4") // Unassigned

var ErrIsoSendPacket = errors.New("ErrIsoSendPacket") // An error occurred during send

var ErrIsoShortPacket = errors.New("rrIsoShortPacket") // A short packet received

var ErrIsoTooManyFragments = errors.New("ErrIsoTooManyFragments") // Too many packets without EoT flag

var ErrNEgotiatingPDU = errors.New("ErrNEgotiatingPDU")

Error codes

var ErrUnknow = errors.New("ErrUnknow")

Types

type DataTime

type DataTime struct {
	// contains filtered or unexported fields
}

type Snap7Client

type Snap7Client struct {
	// contains filtered or unexported fields
}

func ConnentTo

func ConnentTo(address string, rack int, slot int) (Snap7Client, error)

func (*Snap7Client) ABRead

func (client *Snap7Client) ABRead(start int, size int) ([]byte, error)

func (*Snap7Client) ABWrite

func (client *Snap7Client) ABWrite(start int, data []byte) error

func (*Snap7Client) CTRead

func (client *Snap7Client) CTRead(start int, amount int) ([]byte, error)

func (*Snap7Client) CTWrite

func (client *Snap7Client) CTWrite(start int, data []byte) error

func (*Snap7Client) Close

func (client *Snap7Client) Close()

func (*Snap7Client) DBRead

func (client *Snap7Client) DBRead(db_number int, start int, size int) ([]byte, error)

func (*Snap7Client) DBWrite

func (client *Snap7Client) DBWrite(db_number, start int, data []byte) error

func (*Snap7Client) EBRead

func (client *Snap7Client) EBRead(start int, size int) ([]byte, error)

func (*Snap7Client) EBWrite

func (client *Snap7Client) EBWrite(start int, data []byte) error

func (*Snap7Client) GetPlcDateTime

func (client *Snap7Client) GetPlcDateTime() (DataTime, error)

func (*Snap7Client) MBRead

func (client *Snap7Client) MBRead(start int, size int) ([]byte, error)

func (*Snap7Client) MBWrite

func (client *Snap7Client) MBWrite(start int, data []byte) error

func (*Snap7Client) ReadArea

func (client *Snap7Client) ReadArea(area int, db_number int, start int, amount int) ([]byte, error)

func (*Snap7Client) SetPlcDateTime

func (client *Snap7Client) SetPlcDateTime(time DataTime) error

func (*Snap7Client) TMRead

func (client *Snap7Client) TMRead(start int, amount int) ([]byte, error)

func (*Snap7Client) TMWrite

func (client *Snap7Client) TMWrite(start int, data []byte) error

func (*Snap7Client) WriteArea

func (client *Snap7Client) WriteArea(area int, db_number int, start int, data []byte) error