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7.9 Broadcasting UDP Data
63
Figure 7.14: Shows PMU-1 set to
broadcast UDP
7.9.2
Broadcasting UDP, C37.118 Synchrophasor Data
The 1133A was designed to transmit only in UDP; i.e. you cannot connect using UDP in the 1133A.
Therefore, to configure the 1133A to broadcast C37.118 synchrophasor data, or to start or stop a
C37.118 UDP broadcast, use a separate TCP connection. This is unlike any of the Autonomous
(Auto) UDP modes, which will begin broadcasting immediately after being configured in PSCSV.
Figure 7.15 illustrates CFG-2 Mode and CFG-Interval, which allows you to configure the UDP
broadcast to send a configuration frame with the data UDP data. There are three choices: (1)
OFF, (2) Send configuration frame once at the beginning of the broadcast, and (3) send the frame
at the beginning of the frame and at minute intervals thereafter.
Figure 7.15: UDP Configuration Frame Mode and Interval
Procedure
1. Connect with the 1133A and log on with permission to configure. For assistance, see “Basic
Configuration Requirements” in Section 7.1.2.
2. Select Connection
>
Configure
>
Communication Ports
>
Ethernet and select the Protocol
drop-down window; choose one of the UDP modes listed above.
3. Also, you will need to select the UDP port values and destination IP address of the device
receiving the broadcast. Click the Apply button and OK to close.
4. For Broadcast, the data will flood the network; for Unicast, the data will go to the target
IP address; for Multicast, the data will go to the target IP addresses. C37.118 data needs a
TCP connection to start or stop UDP data; for any of the Autonomous modes, data begins
immediately upon application, no TCP connection is required.
5. C37.118 phasor data may be viewed only from a device that communicates C37.118 protocol.
PSCSV cannot start or stop C37.118 phasor data broadcasts in TCP or UDP modes. For