NetLinx Programming
85
NX-Series Controllers - WebConsole & Programming Guide
Master IP Local Port SEND_COMMANDs
These commands are specific to the Master and not the Controller. These commands are sent to the DPS 0:1:0 (the Master). A
device must first be defined in the NetLinx programming language with values for the Device: Port: System.
In these programming examples, <DEV> = Device. The term <D:P:S> = Device:Port:System.
Master IP Local Port SEND_COMMANDs
Command Description
UDPSENDTO Set the IP and port number of the UDP local ports destination for sending future packets. This is only available for Type 2
and Type 3 Local Ports. Type 2 and Type 3 are referring to the protocol type that is part of the IP_CLIENT_OPEN call (4th
parameter).
Type 1 is TCP.
Type 2 is UDP (standard)
Type 3 is U DP (2 way)
The NetLinx.axi defines constants for the protocol types:
CHAR IP_TCP = 1
CHAR IP_UDP = 2
CHAR IP_UDP_2WAY = 3
Syntax:
SEND_COMMAND <D:P:S>,"'UDPSENDTO-<IP or URL>:<UDP Port Number>'"
Variables:
• IP or URL = A string containing the IP Address or URL of the desired destination.
• UDP Port Number = A String containing the UDP port number of the desired destination.
Example 1:
SEND_COMMAND 0:3:0,"'UDPSENDTO-192.168.0.1:10000'"
Any subsequent SEND_STRING to 0:3:0 are sent to the IP Address 192.168.0.1 port 10000.
Example 2:
SEND_COMMAND 0:3:0,"'UDPSENDTO-myUrl.com:15000'"
Any subsequent SEND_STRING to 0:3:0 are sent to the URL myURL.com port 15000.
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