21.9.2 Function block
SEMOD55766-1 v2
SEMOD54868-4 v10
SMAI1
BLOCK
DFTSPFC
REVROT
^GRP1_A
^GRP1_B
^GRP1_C
^GRP1_N
SPFCOUT
G1AI3P
G1AI1
G1AI2
G1AI3
G1AI4
G1N
ANSI14000027-1-en.vsd
ANSI14000027 V1 EN-US
Figure 638: SMAI1 function block
Figure 638 is an example of SMAI1:n in each of the three task time groups 1, 2 or 3 where:
• n=1–12 in task group 1
• n=13–24 in task group 2
• n=25–36 in task group 3
The task time defines the execution repetition rate, and is 1, 3 or 8 ms respectively for the three
task time groups.
SEMOD54997-4 v9
SMAI2
BLOCK
REVROT
^GRP2_A
^GRP2_B
^GRP2_C
^GRP2_N
G2AI3P
G2AI1
G2AI2
G2AI3
G2AI4
G2N
ANSI14000028-1-en.vsd
ANSI14000028 V1 EN-US
Figure 639: SMAI2 function block
Figure 639 is an example of SMAI2:n to SMAI12:m in each of the three task time groups 1, 2 or 3
where:
• n=2 and m=12 in task group 1
• n=14 and m=24 in task group 2
• n=26 and m=36 in task group 3
The task time defines the execution repetition rate, and is 3, 8 or 1 ms respectively for the three
task time groups.
21.9.3 Signals
SEMOD55773-1 v2
PID-3405-INPUTSIGNALS v5
Table 981: SMAI1 Input signals
Name
Type Default Description
BLOCK BOOLEAN 0 Block group 1
DFTSPFC REAL 20.0 Number of samples per fundamental cycle used for DFT
calculation
REVROT BOOLEAN 0 Reverse rotation group 1
GRP1_A STRING - First analog input used for phase A or AB quantity
Table continues on next page
Section 21 1MRK 502 066-UUS B
Basic IED functions
1264
Technical manual
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