6.2.3.4
PMU Report Function Blocks Connection Rules in PCM600 Application
Configuration Tool (ACT)
GUID-66667179-F3E1-455B-8B99-6D73F37E949B v3
There are 3 important general rules which have to be considered in PCM600 ACT for
the connection of preprocessor blocks (SMAI) and 3PHSUM blocks to
PHASORREPORT blocks:
Rule 1:
Only SMAI or 3PHSUM blocks shall be connected to PMU PHASORREPORT blocks
and they shall have the same cycle time, 0.9 ms.
Figure
shows an example of correct connection of SMAI and PHASORREPORT
blocks in ACT where both function blocks are working on 0.9 ms cycle time.
IEC140000124-2-en.vsd
IEC140000124 V2 EN-US
Figure 38:
An example of correct connection of SMAI and PHASORREPORT
blocks in ACT
Figure
shows an example of wrong connection of SMAI and PHASORREPORT
blocks in ACT where the SMAI block is working on 3 ms while PHASORREPORT
block is working on 0.9 ms cycle time.
IEC140000125-2-en.vsd
IEC140000125 V2 EN-US
Figure 39:
An example of wrong connection of SMAI and PHASORREPORT
blocks in ACT
Violation of rule 1 results in PMU applications not running at all. The reason is the
inconsistent cycle time. For example, in Figure
, the SMAI block is updating its
output every 3 ms while the PHASORREPORT block is expecting input every 0.9 ms.
1MRK 511 401-UUS A
Section 6
Wide area measurement system
Bay control REC670 2.2 ANSI
115
Application manual
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