common

package
v1.0.3 Latest Latest
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 Go to latest Published: Apr 28, 2024 License: MIT Imports: 4 Imported by: 0

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Index

Constants

View Source 
const (
	TpktLen                    int = 4
	CotpDataLen                    = 3
	CotpConnectionLen              = 18
	RequestHeaderLen               = 10
	AckHeaderLen                   = 12
	ReturnItemLen                  = 1
	NckRequestItemLen              = 10
	StandardRequestItemLen         = 12
	StandardParameterLen           = 1
	ReadWriteParameterMinLen       = 2
	PlcStopParameterMinLen         = 7
	PlcControlParameterMinLen      = 11
	PlcControlAckParameterLen      = 2
	SetupComParameterLen           = 8
	DownloadParameterLen           = 18
	EndDownloadParameterLen        = 18
	StartDownloadParameterLen      = 32
	UploadParameterLen             = 8
	UploadAckParameterLen          = 2
	EndUploadParameterLen          = 8
	StartUploadParameterLen        = 18
	StartUploadAckParameterLen     = 16
	UserdataParameterLen           = 8
	UserdataAckParameterLen        = 12
	UpDownloadDatumMinLen          = 4
	ReadSzlAckDatumMinLen          = 4
	BlockAckDatumMinLen            = 4
	DataItemMinLen                 = 4
	ReadSzlDatumLen                = 8
	BlockListTypeDatumLen          = 6
	BlockInfoDatumLen              = 12
	ClockReadAckDatumLen           = 14
	SetPasswordDatumLen            = 12
	UserdataDatumLen               = 4
)
View Source 
const (
	// S200 S200
	S200 PlcType = 0x00
	// S200Smart S200_SMART
	S200Smart = 0x01
	// S300 S300
	S300 = 0x02
	// S400 S400
	S400 = 0x03
	// S1200 S1200
	S1200 = 0x04
	// S1500 S1500
	S1500 = 0x05
	// Sinumerik828d Sinumerik828d
	Sinumerik828d = 0x06

	// PvtBit 位
	PvtBit = 0x01
	// PvtByte 字节
	PvtByte = 0x02
	// PvtChar 字符
	PvtChar = 0x03
	// PvtWord 字
	PvtWord = 0x04
	// PvtInt INT
	PvtInt = 0x05
	// PvtDWord 双字
	PvtDWord = 0x06
	// PvtDInt DINT
	PvtDInt = 0x07
	// PvtReal 浮点
	PvtReal = 0x08
	// PvtDate 日期
	PvtDate = 0x09
	// PvtTimeOfDay TOD
	PvtTimeOfDay = 0x0A
	// PvtTime 时间
	PvtTime = 0x0B
	// PvtS5Time S5TIME
	PvtS5Time = 0x0C
	// PvtDateTime 日期和时间
	PvtDateTime = 0x0F
	// PvtDTL dtl
	PvtDTL = 0x10
	// PvtCounter 计数器
	PvtCounter = 0x1C
	// PvtTimer 定时器
	PvtTimer = 0x1D
	// PvtString 字符串
	PvtString ParamVariableType = 0x00
	// PvtWString 字符串
	PvtWString = 0xFF

	// AtSystemInfo 200系列系统信息
	AtSystemInfo AreaType = 0x03
	// AtSystemFlag 200系统标志
	AtSystemFlag = 0x05
	// AtAnalogInputs 200系列模拟量输入
	AtAnalogInputs = 0x06
	// AtAnalogOutputs 200系列模拟量输出
	AtAnalogOutputs = 0x07
	// AtDirectPeripheralAccess 直接访问外设
	AtDirectPeripheralAccess = 0x80
	// AtInputs 输入（I）
	AtInputs = 0x81
	// AtOutputs 输出（Q）
	AtOutputs = 0x82
	// AtFlags 内部标志（M）
	AtFlags = 0x83
	// AtDataBlocks 数据块（DB）
	AtDataBlocks = 0x84
	// AtInstanceDataBlocks 背景数据块（DI）
	AtInstanceDataBlocks = 0x85
	// AtLocalData 局部变量（L)
	AtLocalData = 0x86
	// AtUnknownYet 全局变量（V）
	AtUnknownYet = 0x87
	// AtCounters S7计数器（C）
	AtCounters = 0x1C
	// AtTimers S7定时器（T）
	AtTimers = 0x1D
	// AtIecCounters Iec计数器（200系列）
	AtIecCounters = 0x1E
	// AtIecTimers Iec定时器（200系列）
	AtIecTimers = 0x1F

	// PtConnectRequest 连接请求
	PtConnectRequest PduType = 0xE0
	// PtConnectConfirm 连接请求
	PtConnectConfirm PduType = 0xD0
	// PtDisconnectRequest 断开请求
	PtDisconnectRequest PduType = 0x80
	// PtDisconnectConfirm 断开确认
	PtDisconnectConfirm PduType = 0xC0
	// PtReject 拒绝
	PtReject PduType = 0x50
	// PtData 数据
	PtData PduType = 0xF0

	// MtJob 开工干活的意思，主设备通过job向从设备发出“干活”的命令
	// 具体是读取数据还是写数据由parameter决定
	MtJob MessageType = 0x01
	// MtAck 确认 确认有没有数据字段
	MtAck = 0x02
	// MtAckData 从设备回应主设备的job
	MtAckData = 0x03
	// MtUserData 原始协议的扩展，参数字段包含请求/响应id
	// 用于编程/调试，SZL读取，安全功能，时间设置，循环读取
	MtUserData = 0x07

	// FcCpuService CPU服务
	FcCpuService FunctionCode = 0x00
	// FcRead 读变量
	FcRead = 0x04
	// FcWrite 写变量
	FcWrite = 0x05
	// FcStartDownload 开始下载
	FcStartDownload = 0xFA
	// FcDownload 下载阻塞
	FcDownload = 0xFB
	// FcEndDownload 下载结束
	FcEndDownload = 0xFC
	// FcStartUpload 开始上传
	FcStartUpload = 0x1D
	// FcUpload 上传
	FcUpload = 0x1E
	// FcEndUpload 结束上传
	FcEndUpload = 0x1F
	// FcControl 控制PLC
	FcControl = 0x28
	// FcStop 停止PLC
	FcStop = 0x29
	// FcSetupCom 设置通信
	FcSetupCom = 0xF0

	// SiAny Address data S7-Any pointer-like DB1.DBX10.2
	SiAny SyntaxID = 0x10
	// SiPbcRId R_ID for PBC
	SiPbcRId = 0x13
	// SiAlarmLockFree Alarm lock/free dataset
	SiAlarmLockFree = 0x15
	// SiAlarmInd Alarm indication dataset
	SiAlarmInd = 0x16
	// SiAlarmAck Alarm acknowledge message dataset
	SiAlarmAck = 0x19
	// SiAlarmQueryReq Alarm query request dataset
	SiAlarmQueryReq = 0x1A
	// SiNotifyInd Notify indication dataset
	SiNotifyInd = 0x1C
	// SiDriveesAny DRIVEESANY seen on Drive ES Starter with routing over S7
	SiDriveesAny = 0xA2
	// SiS1200SYM Symbolic byteAddress mode of S7-1200
	SiS1200SYM = 0xB2
	// SiDbRead Kind of DB block read， seen only at an S7-400
	SiDbRead = 0xB0
	// SiNck Sinumerik NCK HMI access
	SiNck = 0x82

	// NmY Global system data
	NmY NckModule = 0x10
	// NmYNCFL NCK instruction groups
	NmYNCFL = 0x11
	// NmFU NCU global settable frames
	NmFU = 0x12
	// NmFA Active NCU global frames
	NmFA = 0x13
	// NmTO Tool data
	NmTO = 0x14
	// NmRP Arithmetic parameters
	NmRP = 0x15
	// NmSE Setting data
	NmSE = 0x16
	// NmSGUD SGUD( (byte) ,Block
	NmSGUD = 0x17
	// NmLUD Local userdata
	NmLUD = 0x18
	// NmTC Toolholder parameters
	NmTC = 0x19
	// NmM Machine data
	NmM = 0x1A
	// NmWAL Working area limitation
	NmWAL = 0x1C
	// NmDIAG Internal diagnostic data
	NmDIAG = 0x1E
	// NmCC Unknown
	NmCC = 0x1F
	// NmFE Channel( (byte) ,specific external frame
	NmFE = 0x20
	// NmTD Tool data: General data
	NmTD = 0x21
	// NmTS Tool edge data: Monitoring data
	NmTS = 0x22
	// NmTG Tool data: Grinding( (byte) ,specific data
	NmTG = 0x23
	// NmTU Tool data
	NmTU = 0x24
	// NmTUE Tool edge data, userdefined data
	NmTUE = 0x25
	// NmTV Tool data, directory
	NmTV = 0x26
	// NmTM Magazine data: General data
	NmTM = 0x27
	// NmTP Magazine data: Location data
	NmTP = 0x28
	// NmTPM Magazine data: Multiple assignment of location data
	NmTPM = 0x29
	// NmTT Magazine data: Location typ
	NmTT = 0x2A
	// NmTMV Magazine data: Directory
	NmTMV = 0x2B
	// NmTMC Magazine data: Configuration data
	NmTMC = 0x2C
	// NmMGUD MGUD( (byte) ,Block
	NmMGUD = 0x2D
	// NmUGUD UGUD( (byte) ,Block
	NmUGUD = 0x2E
	// NmGUD4 GUD4( (byte) ,Block
	NmGUD4 = 0x2F
	// NmGUD5 GUD5( (byte) ,Block
	NmGUD5 = 0x30
	// NmGUD6 GUD6( (byte) ,Block
	NmGUD6 = 0x31
	// NmGUD7 GUD7( (byte) ,Block
	NmGUD7 = 0x32
	// NmGUD8 GUD8( (byte) ,Block
	NmGUD8 = 0x33
	// NmGUD9 GUD9( (byte) ,Block
	NmGUD9 = 0x34
	// NmPA Channel( (byte) ,specific protection zones
	NmPA = 0x35
	// NmGD1 SGUD( (byte) ,Block GD1
	NmGD1 = 0x36
	// NmNIB State data: Nibbling
	NmNIB = 0x37
	// NmETP Types of events
	NmETP = 0x38
	// NmETPD Data lists for protocolling
	NmETPD = 0x39
	// NmSYNACT Channel( (byte) ,specific synchronous actions
	NmSYNACT = 0x3A
	// NmDIAGN Diagnostic data
	NmDIAGN = 0x3B
	// NmVSYN Channel( (byte) ,specific user variables for synchronous actions
	NmVSYN = 0x3C
	// NmTUS Tool data: user monitoring data
	NmTUS = 0x3D
	// NmTUM Tool data: user magazine data
	NmTUM = 0x3E
	// NmTUP Tool data: user magazine place data
	NmTUP = 0x3F
	// NmTF Parameterizing, return parameters of _N_TMGETT, _N_TSEARC
	NmTF = 0x40
	// NmFB Channel( (byte) ,specific base frames
	NmFB = 0x41
	// NmSSP2 State data: Spindle
	NmSSP2 = 0x42
	// NmPUD program global Benutzerdaten
	NmPUD = 0x43
	// NmTOS Edge( (byte) ,related location( (byte) ,dependent fine total offsets
	NmTOS = 0x44
	// NmTOST Edge( (byte) ,related location( (byte) ,dependent fine total offsets, transformed
	NmTOST = 0x45
	// NmTOE Edge( (byte) ,related coarse total offsets, setup offsets
	NmTOE = 0x46
	// NmTOET Edge( (byte) ,related coarse total offsets, transformed setup offsets
	NmTOET = 0x47
	// NmAD Adapter data
	NmAD = 0x48
	// NmTOT Edge data: Transformed offset data
	NmTOT = 0x49
	// NmAEV Working offsets: Directory
	NmAEV = 0x4A
	// NmYFAFL NCK instruction groups (Fanuc)
	NmYFAFL = 0x4B
	// NmFS System( (byte) ,Frame
	NmFS = 0x4C
	// NmSD Servo data
	NmSD = 0x4D
	// NmTAD Application( (byte) ,specific data
	NmTAD = 0x4E
	// NmTAO Application( (byte) ,specific cutting edge data
	NmTAO = 0x4F
	// NmTAS Application( (byte) ,specific monitoring data
	NmTAS = 0x50
	// NmTAM Application( (byte) ,specific magazine data
	NmTAM = 0x51
	// NmTAP Application( (byte) ,specific magazine location data
	NmTAP = 0x52
	// NmMEM Unknown
	NmMEM = 0x53
	// NmSALUC Alarm actions: List in reverse chronological order
	NmSALUC = 0x54
	// NmAUXFU Auxiliary functions
	NmAUXFU = 0x55
	// NmTDC Tool/Tools
	NmTDC = 0x56
	// NmCP Generic coupling
	NmCP = 0x57
	// NmSDME Unknown
	NmSDME = 0x6E
	// NmSPARPI Program pointer on interruption
	NmSPARPI = 0x6F
	// NmSEGA State data: Geometry axes in tool offset memory (extended)
	NmSEGA = 0x70
	// NmSEMA State data: Machine axes (extended)
	NmSEMA = 0x71
	// NmSSP State data: Spindle
	NmSSP = 0x72
	// NmSGA State data: Geometry axes in tool offset memory
	NmSGA = 0x73
	// NmSMA State data: Machine axes
	NmSMA = 0x74
	// NmSALAL Alarms: List organized according to time
	NmSALAL = 0x75
	// NmSALAP Alarms: List organized according to priority
	NmSALAP = 0x76
	// NmSALA Alarms: List organized according to time
	NmSALA = 0x77
	// NmSSYNAC Synchronous actions
	NmSSYNAC = 0x78
	// NmSPARPF Program pointers for block search and stop run
	NmSPARPF = 0x79
	// NmSPARPP Program pointer in automatic operation
	NmSPARPP = 0x7A
	// NmSNCF Active G functions
	NmSNCF = 0x7B
	// NmSPARP Part program information
	NmSPARP = 0x7D
	// NmSINF Part( (byte) ,program( (byte) ,specific status data
	NmSINF = 0x7E
	// NmS State data
	NmS = 0x7F
	// NmUNKNOWN1 State data
	NmUNKNOWN1 = 0x80
	// NmUNKNOWN2 State data
	NmUNKNOWN2 = 0x81
	// NmUNKNOWN3 State data
	NmUNKNOWN3 = 0x82
	// NmUNKNOWN4 State data
	NmUNKNOWN4 = 0x83
	// NmUNKNOWN5 State data
	NmUNKNOWN5 = 0x84
	// NmUNKNOWN6 State data
	NmUNKNOWN6 = 0x85

	// RcReserved 未定义，预留
	RcReserved ReturnCode = 0x00
	// RcHardwareError 硬件错误
	RcHardwareError = 0x01
	// RcAccessingTheObjectNotAllowed 对象不允许访问
	RcAccessingTheObjectNotAllowed = 0x03
	// RcInvalidAddress 无效地址，所需的地址超出此PLC的极限
	RcInvalidAddress = 0x05
	// RcDataTypeNotSupported 数据类型不支持
	RcDataTypeNotSupported = 0x06
	// RcDataTypeInconsistent 数据类型不一致
	RcDataTypeInconsistent = 0x07
	// RcObjectDoesNotExist 对象不存在
	RcObjectDoesNotExist = 0x0A
	// RcSuccess 成功
	RcSuccess = 0xFF

	// DvtNull 无
	DvtNull DataVariableType = 0x00
	// DvtBit bit access, len is in bits
	DvtBit = 0x03
	// DvtByteWordDword byte/word/dword access, len is in bits
	DvtByteWordDword = 0x04
	// DvtInt int access, len is in bits
	DvtInt = 0x05
	// DvtDint int access, len is in bytes
	DvtDint = 0x06
	// DvtReal real access, len is in bytes
	DvtReal = 0x07
	// DvtOctetString octet string, len is in bytes
	DvtOctetString = 0x09

	DtOb  BlockType = 0x3038
	DtDb            = 0x3041
	DtSdb           = 0x3042
	DtFc            = 0x3043
	DtSfc           = 0x3044
	DtFb            = 0x3045
	DtSfb           = 0x3046

	// DfsP （Passive (copied, but not chained) module)：被动文件系统
	DfsP DestinationFileSystem = 0x50
	// DfsA (Active embedded module)：主动文件系统
	DfsA DestinationFileSystem = 0x41
	// DfsB (Active as well as passive module)：既主既被文件系统种
	DfsB DestinationFileSystem = 0x42

	// MRequest request
	MRequest Method = 0x11
	// MResponse response
	MResponse = 0x12

	// FgRequestModeTransition request for model transition
	FgRequestModeTransition FunctionGroup = 0x40
	// FgResponseModeTransition response for model transition
	FgResponseModeTransition = 0x80
	// FgRequestProgrammerCmd request for programmer command
	FgRequestProgrammerCmd = 0x41
	// FgResponseProgrammerCmd response for programmer command
	FgResponseProgrammerCmd = 0x81
	// FgRequestCyclicData request for cyclic data read
	FgRequestCyclicData = 0x42
	// FgResponseCyclicData response for cyclic data read
	FgResponseCyclicData = 0x82
	// FgRequestBlockFunction request for block functions
	FgRequestBlockFunction = 0x43
	// FgResponseBlockFunction response for block functions
	FgResponseBlockFunction = 0x83
	// FgRequestCpuFunction request cpu functions
	FgRequestCpuFunction = 0x44
	// FgResponseCpuFunction response cpu functions
	FgResponseCpuFunction = 0x84
	// FgRequestSecurity request for block security
	FgRequestSecurity = 0x45
	// FgResponseSecurity response for security
	FgResponseSecurity = 0x85
	// FgRequestPBC request for PBC
	FgRequestPBC = 0x45
	// FgResponsePBC response for PBC
	FgResponsePBC = 0x85
	// FgRequestTimeFunction request for time functions
	FgRequestTimeFunction = 0x47
	// FgResponseTimeFunction response for time functions
	FgResponseTimeFunction = 0x87
	// FgRequestNC request for NC programming
	FgRequestNC = 0x47
	// FgResponseNc response for NC programming
	FgResponseNc = 0x87

	// CsfReadSzl read szl data
	CsfReadSzl                CpuSubFunction = 0x01
	CsfMessageService                        = 0x02
	CsfDiagnosticMessage                     = 0x03
	CsfDisplayAlarm                          = 0x05
	CsfDisplayNotify                         = 0x06
	CsfLockAlarm                             = 0x07
	CsfLockNotify                            = 0x08
	CsfDisplayScan                           = 0x09
	CsfConfirmAlarm                          = 0x0B
	CsfConfirmDisplayAlarm                   = 0x0C
	CsfLockDisplayAlarm                      = 0x0D
	CsfCancelLockDisplayAlarm                = 0x0E
	CsfDisplayAlarmSQ                        = 0x11
	CsfDisplayAlarmS                         = 0x12
	CsfQueryAlarm                            = 0x13

	// BsfListBlock list block
	BsfListBlock BlockSubFunction = 0x01
	// BsfListBlockOfType list block of type
	BsfListBlockOfType = 0x02
	// BsfBlockInfo GetBlockInfo
	BsfBlockInfo = 0x03

	// TsfReadClock read clock
	TsfReadClock TimeSubFunction = 0x01
	// TsfSetClock set clock
	TsfSetClock TimeSubFunction = 0x02

	// SsfSetPassword set session password
	SsfSetPassword SecuritySubFunction = 0x01
	// SsfClearPassword clear session password
	SsfClearPassword = 0x02

	PplNoPassword        ParameterProtectionLevel = 0x0000
	PplSelectorPassword                           = 0x0001
	PplWritePassword                              = 0x0002
	PplReadWritePassword                          = 0x0003

	CplUnknown           CpuProtectionLevel = 0x0000
	CplAccessGrant                          = 0x0001
	CplReadOnly                             = 0x0002
	CplReadWritePassword                    = 0x0003

	SpUnknown SelectorSetting = 0x0000
	SpRun                     = 0x0001
	SpRunP                    = 0x0002
	SpStop                    = 0x0003
	SpMRES                    = 0x0004

	SsUnknown StartupSwitch = 0x0000
	SsCRST                  = 0x0001
	SsWRST                  = 0x0002
)
View Source 
const (
	ErrOk                       = 0x0000
	ErrCommon                   = 0x0001
	ErrModelFromBytes           = 0x0002
	ErrTypeNotResolved          = 0x0003
	ErrVariableTypeUnrecognized = 0x0004
	ErrPasswordLengthInvalid    = 0x0005

	ErrCliConnectionNil          = 0x0101
	ErrCliConnectionConnecting   = 0x0102
	ErrCliRequestDataEmpty       = 0x0103
	ErrCliRequestDataDifferent   = 0x0104
	ErrCliUploadFailed           = 0x0105
	ErrCliResponseInvalid        = 0x0106
	ErrCliResponseExceptional    = 0x0107
	ErrCliPduReferenceMismatch   = 0x0108
	ErrCliResponseLengthMismatch = 0x0109
	ErrCliConnectionInactive     = 0x0110
	ErrCliRequestItemInvalid     = 0x0111
	ErrCliSzlPartsInvalid        = 0x0112
	ErrCliConnectionNotNil       = 0x0113

	ErrTcpRequestProcessing   = 0x1001
	ErrTcpRequestTimeout      = 0x1002
	ErrTcpRequestRejected     = 0x1003
	ErrTcpConnect             = 0x1004
	ErrTcpResponseEmpty       = 0x1005
	ErrTcpConnectWithAttempts = 0x1006

	ErrAddressEmpty   = 0x1101
	ErrAddressInvalid = 0x1102
)

Variables

View Source 
var ErrorClassDescMap = map[byte]string{
	0x00: "没有错误",
	0x81: "应用关系",
	0x82: "对象定义",
	0x83: "没有可用资源",
	0x84: "服务处理中错误",
	0x85: "请求错误",
	0x87: "访问错误",
	0xD2: "下载错误",
}
View Source 
var ErrorCodeDescMap = map[uint16]string{}/* 206 elements not displayed */
View Source 
var ReturnCodeDescMap = map[ReturnCode]string{
	RcReserved:                     "未知",
	RcSuccess:                      "成功",
	RcHardwareError:                "硬件错误",
	RcAccessingTheObjectNotAllowed: "对象不允许访问",
	RcInvalidAddress:               "无效地址，所需的地址超出此PLC的极限",
	RcDataTypeNotSupported:         "数据类型不支持",
	RcDataTypeInconsistent:         "数据类型不一致",
	RcObjectDoesNotExist:           "对象不存在",
}

Functions

func ErrorClassDescOrDefault 

func ErrorClassDescOrDefault(errorClass byte, defaultVal string) string

func ErrorCodeDescOrDefault 

func ErrorCodeDescOrDefault(errorCode []byte, defaultVal string) string

func ErrorWithCode 

func ErrorWithCode(code int, params ...any) (err error)

func ReturnCodeDescOrDefault 

func ReturnCodeDescOrDefault(returnCode ReturnCode, defaultVal string) string

Types

type AreaType 

type AreaType byte

AreaType 数据区域

type BlockSubFunction 

type BlockSubFunction byte

BlockSubFunction 块子方法

type BlockType 

type BlockType uint16

BlockType 文件地址块类型

type COTP 

type COTP interface {
	ObjectBytes
	// GetLength 长度（但并不包含length这个字段）
	// 字节大小：1
	// 字节序数：0
	GetLength() byte
	SetLength(byte)
	// GetPduType PDU类型
	// 字节大小：1
	// 字节序数：1
	GetPduType() PduType
	SetPduType(PduType)
}

type CpuProtectionLevel 

type CpuProtectionLevel uint16

CpuProtectionLevel CPU保护级别

type CpuSubFunction 

type CpuSubFunction byte

CpuSubFunction Cpu子方法

type DataVariableType 

type DataVariableType byte

DataVariableType 数据返回变量的类型和长度 Transport size in data Transport size (variable Type)

type Datum 

type Datum interface {
	ObjectBytes
}

type DestinationFileSystem 

type DestinationFileSystem byte

DestinationFileSystem 目标文件系统

type ErrorCode 

type ErrorCode uint16

type FunctionCode 

type FunctionCode byte

FunctionCode 功能码 Job request/Ack-Data function codes

type FunctionGroup 

type FunctionGroup byte

FunctionGroup 用户数据参数类型 

type Header interface {
	ObjectBytes
	// GetProtocolId 协议id
	// 字节大小：1
	// 字节序数：0
	GetProtocolId() byte
	SetProtocolId(byte)
	// GetMessageType pdu（协议数据单元（Protocol Data Unit））的类型
	// 字节大小：1
	// 字节序数：1
	GetMessageType() MessageType
	SetMessageType(MessageType)
	// GetReserved 保留
	// 字节大小：2
	// 字节序数：2-3
	GetReserved() []byte
	SetReserved([]byte)
	// GetPduReference pdu的参考–由主站生成，每次新传输递增，大端
	// 字节大小：2
	// 字节序数：4-5
	GetPduReference() uint16
	SetPduReference(uint16)
	// GetParameterLength 参数的长度（大端）
	// 字节大小：2
	// 字节序数：6-7
	GetParameterLength() uint16
	SetParameterLength(uint16)
	// GetDataLength 数据的长度（大端）
	// 字节大小：2
	// 字节序数：8-9
	GetDataLength() uint16
	SetDataLength(uint16)
}

type MessageType 

type MessageType byte

MessageType 消息的一般类型（有时称为ROSCTR类型） 消息的其余部分在很大程度上取决于Message Type和功能代码。

type Method 

type Method byte

Method 用户数据参数方法

type NckModule 

type NckModule byte

NckModule NCK的模块

type ObjectBytes 

type ObjectBytes interface {
	Len() int
	ToBytes() []byte
}

type ParamVariableType 

type ParamVariableType byte

ParamVariableType Transport size (variable Type) in Item dat

func (ParamVariableType) DataVariableType 

func (w ParamVariableType) DataVariableType() DataVariableType

func (ParamVariableType) Size 

func (w ParamVariableType) Size() uint16

type Parameter 

type Parameter interface {
	ObjectBytes
}

type ParameterProtectionLevel 

type ParameterProtectionLevel uint16

ParameterProtectionLevel 参数保护级别

type PduType 

type PduType byte

PduType PDU类型

type PlcControlParamBlock 

type PlcControlParamBlock interface {
	ObjectBytes
}

type PlcType 

type PlcType byte

PlcType plc类型

type RequestItem 

type RequestItem interface {
	ObjectBytes
	// GetSpecificationType 变量规范
	// 对于读/写消息，它总是具有值0x12
	// 字节大小：1
	// 字节序数：0
	GetSpecificationType() byte
	SetSpecificationType(byte)
	// GetLengthOfFollowing 其余部分的长度规范
	// 字节大小：1
	// 字节序数：1
	GetLengthOfFollowing() byte
	SetLengthOfFollowing(byte)
	// GetSyntaxId 寻址模式和项结构其余部分的格式，它具有任意类型寻址的常量值0x10
	// 字节大小：1
	// 字节序数：2
	GetSyntaxId() SyntaxID
	SetSyntaxId(SyntaxID)
}

type ResponseItem 

type ResponseItem interface {
	ObjectBytes
	// GetReturnCode 返回码
	// 字节大小：1
	// 字节序数：0
	GetReturnCode() ReturnCode
	SetReturnCode(ReturnCode)
}

type ReturnCode 

type ReturnCode byte

ReturnCode 操作的返回值，0xff信号成功 在写入请求消息中，此字段始终设置为零

type S7BaseData 

type S7BaseData interface {
	ObjectBytes
	GetTPKT() TPKT
	GetCOTP() COTP
	GetHeader() Header
	GetParameter() Parameter
	GetDatum() Datum
	SelfCheck()
}

type SecuritySubFunction 

type SecuritySubFunction byte

SecuritySubFunction 安全子方法

type SelectorSetting 

type SelectorSetting uint16

SelectorSetting 选择器设置

type StartupSwitch 

type StartupSwitch uint16

StartupSwitch 启动开环

type SyntaxID 

type SyntaxID byte

SyntaxID 寻址模式和项结构其余部分的格式 它具有任意类型寻址的常量值0x10

type TPKT 

type TPKT interface {
	ObjectBytes
	// GetVersion 版本号，常量0x03 <br>
	// 字节大小：1
	// 字节序数：0
	GetVersion() byte
	SetVersion(byte)
	// GetReserved 预留，默认值0x00
	// 字节大小：1
	// 字节序数：1
	GetReserved() byte
	SetReserved(byte)
	// GetLength 长度，包括后面负载payload+版本号+预留+长度
	// 字节大小：2
	// 字节序数：2-3
	GetLength() uint16
	SetLength(uint16)
}

type TimeSubFunction 

type TimeSubFunction byte

TimeSubFunction 时间子方法

type UserdataParameter 

type UserdataParameter interface {
	Parameter
}

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