ABB Relion 670 Series Applications Manual page 102

Section 6
Wide area measurement system
sent over TCP. This makes the communication more reliable especially since commands are sent
over TCP which performs request/acknowledgment exchange to ensure that no data (command in
this case) is lost.
However, by setting the parameter
of IEEEC37.118 data stream is cyclically sent on the corresponding UDP stream (UDP client
group[x]) once per minute. This is useful in case of multicast UDP data stream when a lot of PMU
clients are receiving the same UDP stream from the same UDP group (UDP client group[x]).
As shown in Figure 33, there are maximum 2 instances of PMUREPORT function blocks available in
the IED. Each UDP client group[x] can only connect to one of the PMUREPORT instances at the
same time. This is defined in the PMU by the parameter
the instance number of PMUREPORT function block that must send data on this UDP stream (UDP
client group[x]).
The data streams in the IED can be sent as unicast or as multicast. The user-defined IP address set
in the parameter
The address range 224.0.0.0 to 239.255.255.255 (Class D IP addresses) is treated as multicast. Any
other IP address outside this range is treated as unicast and the UDP data will be only sent to that
specific unicast IP address. In addition to
parameter is used to define the UDP destination port number for UDP client group[x].
In case of multicast IP, it will be the network switches and routers that take care of replicating the
packet to reach multiple receivers. Multicast mechanism uses network infrastructure efficiently by
requiring the IED to send a packet only once, even if it needs to be delivered to a large number of
receivers.
If there are more than one UDP client group defined as multicast, the user shall set different
multicast IP addresses for each UDP group.
The PMU clients receiving the UDP frames can also connect to the IED to request (command
frame) config frame 1, config frame 2, config frame 3, or header frame, and to disable/enable real
time data. This can be done by connecting to the TCP port selected in
each UDP group. This connection is done using TCP. The IED allows 4 concurrent client
connections for every
If the client tries to connect on
configured for that PMUREPORT instance (
disconnected and the
menu/Diagnostics/Communication/PMU diagnostics/PMUSTATUS:1
Even if the parameter
on the TCP port and request the configuration frames.
6.2 Protocol reporting via IEEE 1344 and C37.118
PMUREPORT
6.2.1 Identification
Function description
Protocol reporting via IEEE 1344 and
C37.118
96
SendCfgOnUDP[x] to Enable , the configuration frame 2 (CFG-2)
UDPDestAddress[x] for each UDP stream defines if it is a Unicast or Multicast.
TCPportUDPdataCtrl[x] port (for each UDP client group[x]).
TCPportUDPdataCtrl[x ] port using a PMU-ID other than what is
UDPCtrlCfgErrCnt is incremented in PMU Diagnostics on LHMI at Main
SendDataUDP[x] is set to Disable it is still possible for the clients to connect
IEC 61850
identification
PMUREPORT
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PMUReportUDP[x] which is used to define
UDPDestAddress[x] parameter, UDPDestPort[x]
PMUReportUDP[x] ), then that client is immediately
IEC 60617
identification
-
1MRK 511 401-UUS F
TCPportUDPdataCtrl[x] for
GUID-0C45D2FA-1B95-4FCA-B23B-A28C2770B817 v1
GUID-0090956B-48F1-4E8B-9A40-90044C71DF20 v1
ANSI/IEEE C37.2
device number
-
Bay control REC670
Application manual