DAP Technology 1394, Руководство по эксплуатации

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File Formats
376 Copyright © DapTechnology B.V., 2005-2019 - All Rights Reserved., 5/20/2019
< Reserved QuadOffset ="1" FirstBit ="0" NumBits ="32"
DataType ="hex"/>
< NodeID QuadOffset ="2" FirstBit ="0" NumBits ="32"
DataType ="udec"/>
< MessagePayloadDataLength QuadOffset ="3" FirstBit ="0" NumBits ="24"
DataType ="udec"/>
< Priority QuadOffset ="3" FirstBit ="24" NumBits ="8"
DataType ="udec"/>
</ ASMHeader >
< PayloadData >
< HealthStatus QuadOffset ="0" FirstBit ="0" NumBits ="32"
DataType ="hex">
< Port Name ="Port 2">
< Struct Name ="Port Struct"/>
</ Port >
< Port Name ="Port 1">
< Struct Name ="Port Struct"/>
</ Port >
< Port Name ="Port 0">
< Struct Name ="Port Struct"/>
</ Port >
< NodeError FirstBit ="29" NumBits ="1"
DataType ="udec" EnumName ="bool"/>
< SubsystemError FirstBit ="30" NumBits ="1"
DataType ="udec" EnumName ="bool"/>
< PacketError FirstBit ="31" NumBits ="1"
DataType ="udec" EnumName ="bool"/>
</ HealthStatus >
< Heartbeat QuadOffset ="1" FirstBit ="0" NumBits ="32"
DataType ="udec"/>
< MessageData QuadOffset ="2"/>
</ PayloadData >
< PacketTrailer >
< STOFTransmitOffset QuadOffset ="0" FirstBit ="0" NumBits ="32"
DataType ="udec"/>
< STOFReceiveOffset QuadOffset ="1" FirstBit ="0" NumBits ="32"
DataType ="udec"/>
< STOFDatapumpOffset QuadOffset ="2" FirstBit ="0" NumBits ="32"
DataType ="udec"/>
< VerticalParityCheck QuadOffset ="3" FirstBit ="0" NumBits ="32"
DataType ="hex"/>
</ PacketTrailer >
</ ASMPacketFormat >
The STOF packet format is similarly defined; see the XML file for its specification.
The
MessageData
tag denotes the location of the signal value payload within the packet; this definition is
explained below.
Message/Signal Definitions
The
MessageDefinitions
section lists the
MessageDefinition
nodes, which define how the signals should be
extracted from the ASM message packets, per channel and message ID.
The
Signal
nodes use the exact same attributes as the
Field
nodes (except that they cannot contain inner
fields or signals), and may be grouped in
SignalGroup
nodes. A group can be grouped recursively, and
mixed with
Signal
nodes.
The
PacketSize
attribute can be used to set the size of the payload, expressed in a positive number of
bits. When omitted or set to -1, the size is derived from the location and size of the last signal within the
respective definition.
<!-- Message Definitions -->
< MessageDefinitions >
< MessageDefinition Channel ="4" MessageID ="6000004" PacketSize ="320">
< SignalGroup >
< Signal Name ="engine1_heartbeat" DataType ="udec" QuadOffset ="0"/>
< Signal Name ="engine1_pressure" DataType ="float" QuadOffset ="1"
Factor ="2.5" Offset ="-1.5" MinValue ="-50" MaxValue ="99.5"
Units ="bar"/>
</ SignalGroup >
< Signal Name ="engine1_temperature" DataType ="dec" QuadOffset ="2"