Short Guidance For Use Of Udp - ABB REG670 Applications Manual

1MRK 502 071-UEN -
6.1.3.2
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual
All the frames (the header frame, configuration frame, command frame and data
frame) are communicated over the same TCP port. The client can request (by sending
a command frame) a configuration and/or header via the TCP channel and the
requested configuration and/or header will be sent back to the client (as Configuration
frame/Header frame) over the same TCP channel.
Once the TCP client connects to the IED, the client has to necessarily send a command
frame to start a communication. As shown in Figure 38, the IED can support 2
PMUREPORT instances and the client has to specify the PMU ID Code in order to
know which PMUREPORT data needs to be sent out to that client. In this figure, X and
Y are referring to the user-defined PMU ID Codes for PMUREPORT instances 1 or
2, respectively. It is up to the TCP client to decide which PMUREPORT function
block shall communicate with that client. Upon successful reception of the first
command by the IED, the PMU ID will be extracted out of the command; if there is
a PMUREPORT instance configured in the IED with matching PMU ID, then the
client connection over TCP with the IED will be established and further
communication will take place. Otherwise, the connection will be terminated and the
TCPCtrlCfgErrCnt is incremented in the PMU Diagnostics on the Local HMI under
Main menu/Diagnostics/Communication/PMU diagnostics/PMUSTATUS:1
It is possible to turn off/on the TCP data communication by sending a IEEE1344 or
C37.118 command frame remotely from the client to the PMU containing RTDOFF/
RTDON command.
At any given point of time maximum of 8 TCP clients can be connected to the IED for
IEEE1344/C37.118 protocol. If there is an attempt made by the 9th client, the
connection to the new client will be terminated without influencing the connection of
the other clients already connected. A list of active clients can be seen on the Local
HMI in the diagnostics menu under Main menu/Diagnostics/
Communication/PMU diagnostics/PMUSTATUS:1

Short guidance for use of UDP

The IED supports maximum of 6 concurrent UDP streams. They can be individually
configured to send IEEE1344 or C37.118 data frames as unicast / multicast. Note that
[x] at the end of each parameter is referring to the UDP stream number (UDP client
group) and is a number between 1 and 6. Each of the 6 UDP groups in the IED has the
following settings:
1. SendDataUDP[x] – Enable / disable UDP data stream
2. ProtocolOnUDP[x] – Send IEEE1344 or C37.118 on UDP
3. PMUReportUDP[x] – Instance number of PMUREPORT function block that
must send data on this UDP stream (UDP client group[x])
4. UDPDestAddres[x] – UDP destination address for UDP client group[x] (unicast /
multicast address range)
Wide area measurement system
Section 6
105