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
6.1.3.3
Short guidance for use of UDP
GUID-F5BCBBF7-4EED-4E79-9E86-AF046D201BB1 v3
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)
5.
UDPDestPort[x]
– UDP destination port number for UDP client group[x]
6.
TCPportUDPdataCtrl[x]
– TCP port to control of data sent over UDP client
group[x], i.e. to receive commands and send configuration frames
7.
SendCfgOnUDP[x]
– Send configuration frame 2 (CFG-2) on UDP for client
group[x]
It is possible to turn off/on the UDP data communication either by setting the
parameter
SendDataUDP[x]
to
Disable/Enable
locally in the PMU or by sending a
C37.118 or IEEE1344 command frame (
RTDOFF/RTDON
) remotely from the client to
the PMU as defined in IEEE 1344/C37.118 standard.
Section 6
1MRK 511 408-UUS A
Wide area measurement system
106
Phasor measurement unit RES670 2.2 ANSI
Technical manual
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