Port SERVICEACCESS - UDP-SOCKET 🛈

socket-based UDP communication

Stimulation

This port has no stimulus capabilities.

Properties 🛈

Name	Available if	Default value	Valid values	Type	Description
Receive buffer size		1000		int	Number of messages which can be recorded in the receive buffer (ring buffer)
IP version		IPv4	[IPv4, IPv6]	string	Selection of the IP version used
Keep cyclic sending active		☐		bool	If the check mark is set, the cyclical sending of packets is only stopped at port stop or by the explicit call to ‘StopSendPacketCyclic’. Otherwise (default), the cyclic sending is already terminated at the end of the test.

Jobs 🛈

ClearReceiveBuffer

Clears the ecu.test high-level receive buffer. Low-level buffers in the driver are not cleared.

CloseConnection

Closes opened UDP connections

ConnectionInfo

Provides IP address and port of connected network end point.

Parameterization

Return value

Name	Available if	Default value	Valid values	Type	Description
result				string	Tuple of IP address (str) and port (int) or NotPresent

OpenConnection

Opens a UDP connection

Parameterization

Parameter

Name	Available if	Default value	Valid values	Type	Description
ListenPort		30490		int	Port for incoming UDP segments
TargetHost		‘192.168.0.1’		string	Hostname or IP for outgoing UDP segments
TargetPort		30490		int	Port for outgoing UDP segments

ReceivePacket

Returns a packet from the receive buffer and removes it from there

Parameterization

Return value

Name	Available if	Default value	Valid values	Type	Description
result				string	Return value as ByteStream or NotPresent

ReceiveSomeIpMessage

Returns a packet from the receive buffer, interprets it and filters the MessageId if necessary. If MultipleResults are enabled, a list with more than one object might be returned. The packet will be removed from the receive buffer.

Parameterization

Parameter

Name	Available if	Default value	Valid values	Type	Description
InterpretAs		‘PacketSomeIp’	[‘PacketSomeIp’, ‘PacketSomeIpSd’]	string	Specifies which class a package is to be interpreted by. A packet is only returned if it could be successfully interpreted.
MessageId				object	MessageIds which have to match for passing (empty / int / list with ints)
MultipleResults		False	[False, True]	bool	Boolean, if enabled a list with result objects will be returned

Return value

Name	Available if	Default value	Valid values	Type	Description
result				string	Return value of specified type, list of it or NotPresent

SendPacket

Send data

Parameterization

Parameter

Name	Available if	Default value	Valid values	Type	Description
Data				string	String, payload as a ByteStream

StartSendPacketCyclic

Starts cyclic Transmission of a specified message

Parameterization

Parameter

Name	Available if	Default value	Valid values	Type	Description
CycleTime		500		int	Cycle time [ms]
CyclicHandle				int	CyclicHandle can be defined manually. It must be an integer value greater than 0. Collision detection against already defined handles will not be performed.
Payload				object	Payload of the message to be sent cyclically. Either a byte stream can be specified directly or an object from a UserPyModule defined class. Further information on using the payload can be found in the help (Tool tracetronic: Ethernet).

Return value

Name	Available if	Default value	Valid values	Type	Description
CyclicHandle				int	Handle for targeted deactivation of cyclic transmission of that particular message.

StopSendPacketCyclic

Stops cyclic transmission

Parameterization

Parameter

Name	Available if	Default value	Valid values	Type	Description
CyclicHandle				int	Handle of a message to stop its cyclic transmission. If None is specified, cyclic transmission of all messages is stopped.

2025-12-05