DP44/docs/ai/DataPRO/IService/Classes/Channels.md

source_files, generated_at, model, schema_version, sha256

source_files	generated_at	model	schema_version	sha256
DataPRO/IService/Classes/Channels/OutputDASChannel.cs DataPRO/IService/Classes/Channels/AnalogOutputDASChannel.cs DataPRO/IService/Classes/Channels/DigitalOutputDASChannel.cs DataPRO/IService/Classes/Channels/InputDASChannel.cs DataPRO/IService/Classes/Channels/AnalogInputDASChannelComparer.cs DataPRO/IService/Classes/Channels/TimestampDASChannel.cs DataPRO/IService/Classes/Channels/StreamInputDASChannel.cs DataPRO/IService/Classes/Channels/OutputTOMDigitalChannel.cs DataPRO/IService/Classes/Channels/CANInputDASChannel.cs DataPRO/IService/Classes/Channels/UARTInputDASChannel.cs DataPRO/IService/Classes/Channels/StreamOutputDASChannel.cs DataPRO/IService/Classes/Channels/DASChannel.cs DataPRO/IService/Classes/Channels/OutputSquibChannel.cs	2026-04-17T15:31:20.768905+00:00	zai-org/GLM-5-FP8	1	a9fb92d5e6adaff0

DAS Channel Classes Documentation

1. Purpose

This module provides a class hierarchy for representing data acquisition system (DAS) channels, supporting both input and output channel types with specialized implementations for various hardware interfaces (CAN, UART, Streaming, Squib, Timestamp). The hierarchy enables XML serialization/deserialization for configuration persistence, tracks channel ownership through module and DAS relationships, and provides configuration validation through the IsConfigured() method. Channels serve as the fundamental unit of measurement and control in the DAS architecture.

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2. Public Interface

DASChannel (Base Class)

Namespace: DTS.DASLib.Service
Implements: IDASChannel, IXmlSerializable

Constructors:

• DASChannel(DASModule owner, int channelNumber) — Initializes channel with owning module and module-relative channel number; sets ConfigurationMode to Normal, EventStartTime to DateTime.Now, DiagnosticsMode to false.
• DASChannel() — Parameterless constructor for serialization.

Properties:

Property	Type	Description
SetupEID	string	Setup event identifier.
DataCollectionEID	string	Data collection event identifier.
ConfigurationMode	DFConstantsAndEnums.ConfigMode	Configuration mode setting.
DiagnosticsMode	bool	Whether channel is in diagnostics mode.
ModuleChannelNumber	int	Channel number relative to owning module.
AbsoluteDisplayOrder	int	Display ordering; defaults to 1.
UnitConverision	double	Unit conversion factor; defaults to 1D.
AtCapacity	bool	Capacity indicator.
CapacityOutputIsBasedOn	double	Capacity basis value.
SensitivityUnits	SensorConstants.SensUnits	Sensitivity units; defaults to NONE.
OwningModule	DASModule	Back-reference to containing module ([XmlIgnore]).
Number	byte	Stack channel number relative to owning DAS (computed via DASInfo.MapModuleArrayIndexAndChannelNum2DASChannel).
IDs	IEID[]	Array of EID identifiers ([XmlIgnore]).
EventStartTime	DateTime	Event timestamp.
LevelTriggerSeen	bool	Level trigger registration flag.
IsoChannelName	string	ISO channel name.
ChannelGroupName	string	Channel group name.
UserCode	string	User-defined code.
UserChannelName	string	User-defined channel name.
LinearSensorCalibration	string	Linear calibration data.
QualificationSamples	int	Number of samples for qualification.
LevelTriggerT0AdjustmentSamples	int?	T0 adjustment for time alignment; null indicates no direct level trigger.
IdType	int	Identifier type; defaults to DEFAULT_ID_TYPE (0).
UserValue1, UserValue2, UserValue3	string	User-defined values.

Methods:

• virtual bool IsConfigured() — Returns false by default; overridden by subclasses.
• bool CanReProgram() — Returns true if channel is reprogrammable (checks OwningModule.OwningDAS.DASInfo.Modules[0].IsProgrammable).
• virtual void WriteXml(XmlWriter writer) — Serializes channel to XML.
• virtual void WriteXmlCRC32(XmlWriter writer) — Serializes subset of fields for CRC32 calculation.
• virtual void ReadXml(XmlReader reader) — Deserializes channel from XML.
• virtual void WriteElementStart(XmlWriter writer) — Writes opening XML element with xsi:type attribute.
• virtual void WriteElementEnd(XmlWriter writer) — Writes closing XML element.
• virtual void HandleElement(XmlReader reader) — Handles individual XML elements during deserialization.
• XmlSchema GetSchema() — Returns null (IXmlSerializable requirement).

Constants:

• DEFAULT_ID_TYPE = 0
• BRIDGE_ID_TYPE = 1
• IEPE_ID_TYPE = 2
• BRIDGE_G5_ID_TYPE = 3

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OutputDASChannel

Inherits: DASChannel

Constructors:

• OutputDASChannel(DASModule owner, int channelNumber)
• OutputDASChannel()

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InputDASChannel

Inherits: DASChannel

Constructors:

• InputDASChannel(DASModule owner, int channelNumber)
• InputDASChannel()

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AnalogOutputDASChannel

Inherits: OutputDASChannel

Constructors:

• AnalogOutputDASChannel(DASModule owner, int channelNumber)
• AnalogOutputDASChannel()

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DigitalOutputDASChannel

Inherits: OutputDASChannel

Constructors:

• DigitalOutputDASChannel(DASModule owner, int channelNumber)
• DigitalOutputDASChannel()

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TimestampDASChannel

Inherits: InputDASChannel

Constructors:

• TimestampDASChannel(DASModule owner, int channelNumber)
• TimestampDASChannel()

Methods:

• override bool IsConfigured() — Always returns true.
• override string ToString() — Returns descriptive string based on OwningModule.ModuleType() and ModuleChannelNumber.

Constants:

• MARKER = "MARKER"
• SEC_H = "SECONDS_HIGH"
• SEC_L = "SECONDS_LOW"
• NANOS_H = "NANOSECONDS_HIGH"
• NANOS_L = "NANOSECONDS_LOW"
• RSVD = "RESERVED"

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StreamInputDASChannel

Inherits: InputDASChannel

Constructors:

• StreamInputDASChannel(DASModule owner, int channelNumber)
• StreamInputDASChannel()

Properties:

Property	Type	Default
SerialNumber	string	—
HardwareChannelName	string	—
UDPAddress	string	string.Empty

Methods:

• override bool IsConfigured() — Returns true if SerialNumber is not null or empty.
• override string ToString() — Returns $"Stream{ModuleChannelNumber}".
• override void WriteXml(XmlWriter writer)
• override void HandleElement(XmlReader reader)

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StreamOutputDASChannel

Inherits: OutputDASChannel

Constructors:

• StreamOutputDASChannel(DASModule owner, int channelNumber)
• StreamOutputDASChannel()

Properties:

Property	Type	Default
SerialNumber	string	—
HardwareChannelName	string	—
UDPProfileName	string	UDPStreamProfile.CH10_ANALOG_2HDR.ToString()
UDPTimeChannelId	ushort	—
UDPDataChannelId	ushort	—
IRIGTimeDataPacketIntervalMs	ushort	—
TMATSIntervalMs	ushort	StreamOutputRecord.DEFAULT_TMATS_INTERVAL_MS
UDPAddress	string	string.Empty
UDPTmNSConfig	uint[]	new uint[8]

Methods:

• override bool IsConfigured() — Returns true if SerialNumber is not null or empty.
• override string ToString() — Returns $"Stream{ModuleChannelNumber}".
• override void WriteXml(XmlWriter writer)
• override void HandleElement(XmlReader reader)

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CANInputDASChannel

Inherits: InputDASChannel

Constructors:

• CANInputDASChannel(DASModule owner, int channelNumber) — Sets SerialNumber from owner.SerialNumber().
• CANInputDASChannel()

Properties:

Property	Type	Description
SerialNumber	string	Sensor serial number.
HardwareChannelName	string	Hardware channel name.
IsFD	bool	CAN FD mode flag.
ArbBaseBitrate	int	Arbitration base bitrate.
ArbBaseSJW	int	Arbitration base SJW.
DataBitrate	int	Data bitrate.
DataSJW	int	Data SJW.
FileType	string	File type identifier.

Methods:

• override bool IsConfigured() — Returns true if SerialNumber is not null or empty.
• override string ToString() — Returns $"CAN{ModuleChannelNumber}".
• override void WriteXml(XmlWriter writer)
• override void HandleElement(XmlReader reader)

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UARTInputDASChannel

Inherits: InputDASChannel

Constructors:

• UARTInputDASChannel(DASModule owner, int channelNumber)
• UARTInputDASChannel()

Properties:

Property	Type	Description
SerialNumber	string	Sensor serial number.
HardwareChannelName	string	Hardware channel name.
BaudRate	uint	Baud rate setting.
DataBits	uint	Data bits setting.
StopBits	StopBits	Stop bits enumeration.
Parity	Parity	Parity enumeration.
FlowControl	Handshake	Flow control enumeration.
DataFormat	UartDataFormat	Data format enumeration.

Methods:

• override bool IsConfigured() — Returns true if SerialNumber is not null or empty.
• override string ToString() — Returns $"UART{ModuleChannelNumber}".
• override void WriteXml(XmlWriter writer)
• override void HandleElement(XmlReader reader)

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OutputTOMDigitalChannel

Inherits: DigitalOutputDASChannel

Constructors:

• OutputTOMDigitalChannel(XmlReader reader) — Initializes IDs array and calls ReadXml(reader).
• OutputTOMDigitalChannel(DASModule owner, int channelNumber)
• OutputTOMDigitalChannel()

Properties:

Property	Type	Default
OutputMode	DigitalOutputModes	DigitalOutputModes.NONE
DelayMS	double	0D
LimitDuration	bool	false
DurationMS	double	0D
DigitalChannelDescription	string	""
LastModifiedBy	string	""
LastModified	DateTime	—
LocalOnly	bool	false
HardwareChannelName	string	—
Version	int	—
Date	DateTime	—

Methods:

• override bool IsConfigured() — Returns true if OutputMode != DigitalOutputModes.NONE and DigitalChannelDescription is not empty.
• override void WriteXml(XmlWriter writer)
• override void WriteXmlCRC32(XmlWriter writer)
• override void HandleElement(XmlReader reader)

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OutputSquibChannel

Inherits: AnalogOutputDASChannel, IComparable

**Constructors: