UDP In DAT

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Summary

The UDP In DAT is used for receiving information over a UDP connection between two remotely located computers. It captures all the messages without any queuing or buffering, and allows you to send it any messages you want. Once this DAT has received a message it can reply to the sender using the 'send' command. Using the send command before it has received a message will not work because it doesn't know where to send data yet. When in multicast mode it doesn't send out a multicast message, it sends a reply directly to the originator for the last multicast message it got.

See also TCP/IP DAT.

PythonIcon.png udpinDAT_Class

Parameters - Connect Page

Protocol protocol - Select which protocol to use, refer to the Network Protocols article for more information.

Network Address address - The multi-cast IP address to listen for.

Port port - The network port the listen on.

Table Format format - Determines how the incoming data is parsed into the table.

  • One Row Per Byte - One row is added to the table per byte received.
  • One Row Per Line - One row is added to the table per line received. The end of a line is delimited by \n, \r or a null character (\0).
  • One Row Per Message - One row is added to the table per message received.

Active active - This check box enables the connection.

Parameters - Received Messages Page

Script DAT script - the Script DAT will execute once for each message coming in. See udpinDAT_Class for usage.

Execute From executeloc - Determines the location the script is run from.

  • Current Node current - The script is executed from the current node location (for example, where 'cc' points to).
  • Script DAT script - The script is executed from the location of the DAT specified in the Script DAT parameter.
  • Specified Operator op - The script is executed from the operator specified in the From Operator parameter below.

From Operator fromop - The operator whose state change will trigger the DAT to execute its script when Execute is set to Specified Operator. This operator is also the path that the script will be executed from if the Execute From parameter is set to Specified Operator.

Clamp Output clamp - The DAT is limited to 100 messages by default but with Clamp Output, this can be set to anything including unlimited.

Maximum Lines maxlines - Limits the number of messages, older messages are removed from the list first.

Clear Output clear - Deletes all lines except the heading. To clear with a python script op("opname").par.clear.pulse()

Keep First Row firstrow - Keeps first row in table.

Bytes Column bytes - Outputs the raw bytes of the message in a separate column.