C. Communication and Data Formats
The standard defines the formats for frames sent out from
the PMU (data, configuration, and header) and for command
frames sent to the PMU.
Mappings to serial communication and to TCP/UDP are
specified.
The data frames contain:
• Synchrophasors of the voltages and/or currents (1-
phase, 3-phase, sequence components)
• Frequency & frequency change
• Further analog & digital values
The configuration and header frames transmit identifiers,
format specifications, and conversion factors for the values
transmitted in the data frames.
The operation of the PMU can be controlled by sending
command frames to it, e.g. to request the sending of
configuration and header frames or to disable/enable the
sending of data frames.